US20050274681A1 - Adjustable width bookend construction - Google Patents

Adjustable width bookend construction Download PDF

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Publication number
US20050274681A1
US20050274681A1 US10/845,576 US84557604A US2005274681A1 US 20050274681 A1 US20050274681 A1 US 20050274681A1 US 84557604 A US84557604 A US 84557604A US 2005274681 A1 US2005274681 A1 US 2005274681A1
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US
United States
Prior art keywords
base
bookend
book
construction
partition
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Abandoned
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US10/845,576
Inventor
Edward Rivers
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Individual
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Individual
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Filing date
Publication date
Application filed by Individual filed Critical Individual
Priority to US10/845,576 priority Critical patent/US20050274681A1/en
Priority to PCT/US2005/015083 priority patent/WO2005112695A2/en
Publication of US20050274681A1 publication Critical patent/US20050274681A1/en
Abandoned legal-status Critical Current

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Classifications

    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47B—TABLES; DESKS; OFFICE FURNITURE; CABINETS; DRAWERS; GENERAL DETAILS OF FURNITURE
    • A47B65/00—Book-troughs; Accessories specially adapted for book-storing, e.g. book-ends
    • A47B65/20—Book-ends
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47B—TABLES; DESKS; OFFICE FURNITURE; CABINETS; DRAWERS; GENERAL DETAILS OF FURNITURE
    • A47B65/00—Book-troughs; Accessories specially adapted for book-storing, e.g. book-ends
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47B—TABLES; DESKS; OFFICE FURNITURE; CABINETS; DRAWERS; GENERAL DETAILS OF FURNITURE
    • A47B65/00—Book-troughs; Accessories specially adapted for book-storing, e.g. book-ends
    • A47B65/10—Book-troughs; Accessories specially adapted for book-storing, e.g. book-ends adjustable

Definitions

  • the present invention relates to the field of bookend constructions in general and in particular to adjustable width bookend constructions.
  • the book engaging units are movably supported on a horizontal spanner unit that rests on a horizontal support surface thereby producing a rather conventional and predictable orientation of the major components of an adjustable width bookend.
  • each of the book engaging end units comprises a generally L-shaped bookend member formed by a rear wall and a side wall wherein, each rear wall is provided with a horizontally disposed support member to support a portion of the spanner unit and each side wall is provided with a vertical slot dimensioned to slidably receive and clutch another portion of the spanner unit.
  • the spanner unit comprises an elongated rectangular cross-member dimensioned to be slidably received in the vertical slots in each of the side walls and be suspended from the support members on the rear walls of the respective bookend members.
  • the outboard ends of a cross-member may be provided with end cap members configured to limit the lateral travel of the bookend members relative to the cross-member.
  • outboard ends of a predetermined length cross-member may be provided with end cap members may be configured to extend beyond and down the opposite edges of an elevated level surface to prevent lateral displacement of the bookend construction relative to the elevated level surface.
  • holding block assemblies are provided to prevent aftward displacement of the bookend construction relative to a collection of books.
  • FIG. 1 is a perspective view of the adjustable width bookend construction in use configured to prevent lateral displacement of the bookend construction relative to an elevated level surface;
  • FIG. 2 is a front elevation view of the bookend construction
  • FIG. 3 is an exploded perspective view of the bookend construction
  • FIG. 4 is a perspective view of the adjustable width bookend construction in use configured for open surface placement of the bookend construction.
  • FIG. 5 is a perspective view of two identical holding block assemblies in use.
  • the adjustable width bookend construction that forms the basis of the present invention is designated generally by the reference number 10 .
  • the construction 10 comprises a pair of mirror image book engaging end units (bookend members) 20 20 and a spanner unit 30 . These units will now be described in seriatim fashion.
  • the mirror image book engaging end units 20 20 each comprises a generally L-shaped bookend member 20 having a vertically oriented rear wall panel 21 and a vertically oriented side wall 22 .
  • the lower portion of the free end of the rear walls are each provided with inwardly projecting support members 23 23 , and as can best be seen by reference to FIG. 3 , the lower portion of the captive end of the side walls 22 22 are each provided with elongated slots 24 24 which extend upwardly from the bottom of each of the side walls 22 22 .
  • the spanner unit 30 comprises an elongated rectangular cross-member 31 dimensioned to be slidably received within the slots 24 24 in the side walls 22 22 and supported on the support members 23 23 in the rear walls 21 21 such that the bookend members 20 20 are linearly clutched as well as slidably adjustable toward and away from one another on the cross-member 31 .
  • each of the end cap members 32 32 may be adapted such that the inwardly facing vertical groove 36 slidably receives a capture arm 35 that rests on the cross-member 31 .
  • each end plate 33 and each upwardly projecting capture arm 35 , each function to limit the lateral displacement of each of the bookend members 20 20 relative to the cross-member 31 .
  • the end cap members 32 32 may also be configured to extend beyond and down the opposite edges of the elevated level surface to prevent lateral displacement of the bookend construction 10 relative to the elevated level surface. Otherwise, as shown in FIG. 4 , the end cap members 32 32 may be configured to rest on a level surface.
  • an optional identical pair of holding blocks 40 each comprising a rear block 41 , a base mat 42 , and an attaching member 43 for attaching the base mat 42 to the rear block 41 , functions to prevent aftward displacement of the bookend construction 10 relative to a collection of books functionally supported by the bookend construction 10 .
  • the attaching member 43 is dimensioned to rest with clearance beneath the cross-member 31 .
  • the aft edge of the base mat 42 folds upward and is sandwiched between the attaching member 43 and the rear block 41 , typically attached using screws through the attaching member 43 and base mat 42 into the rear block 41 .
  • Part of the supported collection of books rests on each base mat 42 fixing each holding block assembly 40 in place.
  • the base mat is thin so as not to interfere with the level integrity of the surface, yet durable to withstand removal and replacement of individual books. The advantage of holding block assemblies becomes apparent when considering a large collection of books in use.

Landscapes

  • Warehouses Or Storage Devices (AREA)
  • Forms Removed On Construction Sites Or Auxiliary Members Thereof (AREA)
  • Mirrors, Picture Frames, Photograph Stands, And Related Fastening Devices (AREA)

Abstract

An adjustable width bookend construction (10) including a pair of generally L-shaped bookend members (20)(20) each having a side wall (22) provided with a slot (24) and a rear wall (21) provided with a support member (23) wherein, the bookend members (20)(20) are operatively and slidably associated with one another via a cross-member (31) dimensioned to be slidably received within the slots (24)(24) and be slidably supported on the support members (23). Furthermore, the cross-member (31) is optionally provided with a pair of end cap members (32)(32) that prevent lateral displacement of the bookend construction (10) relative to and resting upon an elevated level surface. Furthermore, holding block assemblies (40) are optionally provided to prevent aftward displacement of the bookend construction (10) relative to a collection books.

Description

    CROSS REFERENCE TO RELATED APPLICATIONS
  • This invention was the subject matter of Document Disclosure Program Registration No. 539,425, filed in the United States Patent and Trademark Office on Oct. 6, 2003.
    • STATEMENT REGARDING FEDERALLY SPONSORED RESEARCH OR DEVELOPMENT
  • Not Applicable.
    • REFERENCE TO MICROFICHE APPENDIX
  • Not Applicable
    • BACKGROUND OF THE INVENTION
  • 1. Field of the Invention
  • The present invention relates to the field of bookend constructions in general and in particular to adjustable width bookend constructions.
  • 2. Description of Related Art
  • As can be seen by reference to the following U.S. Pat. Nos. 314,436; 758,868; 1,363,138; 1,598,467; 1,674,359; 1,891,420; and 6,354,446; the prior art is replete with myriad and diverse adjustable width bookend constructions.
  • While all of the aforementioned prior art constructions are more than adequate for the basic purpose and function for which they have been specifically designed, they are uniformly deficient with respect to their failure to provide a simple, efficient, and practical adjustable width bookend construction wherein, the book engaging end units clutch, support and suspend a spanner unit in a vertical fashion.
  • In virtually all of the prior art constructions, the book engaging units are movably supported on a horizontal spanner unit that rests on a horizontal support surface thereby producing a rather conventional and predictable orientation of the major components of an adjustable width bookend.
  • As a consequence of the foregoing situation, there has existed a longstanding need among book loving consumers for a new and improved adjustable width bookend construction that has radically different aesthetic appearance and function that serves not only to securely support a plurality of books in an upright orientation, but which will also serve as a topic of conversation, and the provision of such a construction is a stated objective of the present invention.
    • BRIEF SUMMARY OF THE INVENTION
  • Briefly stated, the adjustable width bookend construction that forms the basis of the present invention comprises a pair of book engaging end units that suspend and are slidably disposed relative to a spanner unit.
  • As will be explained in greater detail further on in the specification, each of the book engaging end units comprises a generally L-shaped bookend member formed by a rear wall and a side wall wherein, each rear wall is provided with a horizontally disposed support member to support a portion of the spanner unit and each side wall is provided with a vertical slot dimensioned to slidably receive and clutch another portion of the spanner unit.
  • In addition, the spanner unit comprises an elongated rectangular cross-member dimensioned to be slidably received in the vertical slots in each of the side walls and be suspended from the support members on the rear walls of the respective bookend members.
  • Furthermore, the outboard ends of a cross-member may be provided with end cap members configured to limit the lateral travel of the bookend members relative to the cross-member.
  • Furthermore, the outboard ends of a predetermined length cross-member may be provided with end cap members may be configured to extend beyond and down the opposite edges of an elevated level surface to prevent lateral displacement of the bookend construction relative to the elevated level surface.
  • Furthermore, holding block assemblies are provided to prevent aftward displacement of the bookend construction relative to a collection of books.
    • BRIEF DESCRIPTION OF THE SEVERAL VIEWS OF THE DRAWINGS
  • These and other attributes of the invention will become more clear upon a thorough study of the following description of the best mode for carrying out the invention, particularly when reviewed in conjunction with the drawings, wherein:
  • FIG. 1 is a perspective view of the adjustable width bookend construction in use configured to prevent lateral displacement of the bookend construction relative to an elevated level surface;
  • FIG. 2 is a front elevation view of the bookend construction;
  • FIG. 3 is an exploded perspective view of the bookend construction;
  • FIG. 4 is a perspective view of the adjustable width bookend construction in use configured for open surface placement of the bookend construction; and,
  • FIG. 5 is a perspective view of two identical holding block assemblies in use.
    • DETAILED DESCRIPTION OF THE INVENTION
  • As can be seen by reference to the drawings, the adjustable width bookend construction that forms the basis of the present invention is designated generally by the reference number 10. The construction 10 comprises a pair of mirror image book engaging end units (bookend members) 20 20 and a spanner unit 30. These units will now be described in seriatim fashion.
  • As shown in FIGS. 1 through 4, the mirror image book engaging end units 20 20 each comprises a generally L-shaped bookend member 20 having a vertically oriented rear wall panel 21 and a vertically oriented side wall 22.
  • The lower portion of the free end of the rear walls are each provided with inwardly projecting support members 23 23, and as can best be seen by reference to FIG. 3, the lower portion of the captive end of the side walls 22 22 are each provided with elongated slots 24 24 which extend upwardly from the bottom of each of the side walls 22 22.
  • Furthermore, as shown in FIGS. 1 through 4, the spanner unit 30 comprises an elongated rectangular cross-member 31 dimensioned to be slidably received within the slots 24 24 in the side walls 22 22 and supported on the support members 23 23 in the rear walls 21 21 such that the bookend members 20 20 are linearly clutched as well as slidably adjustable toward and away from one another on the cross-member 31.
  • In addition, as best shown in FIGS. 2 and 3, the opposite ends of the elongated cross-member 31 may be provided with end cap members 32 32 wherein, each comprises an end plate 33 having an inwardly facing vertical groove 36 dimensioned to slidably receive one end of the cross-member 31 and further adapted to receive a lower support leg 34 that the cross-member 31 rests upon. As shown in FIG. 5, each of the end cap members 32 32 may be adapted such that the inwardly facing vertical groove 36 slidably receives a capture arm 35 that rests on the cross-member 31.
  • Furthermore, the forward and aftward projecting portions of each end plate 33, and each upwardly projecting capture arm 35, each function to limit the lateral displacement of each of the bookend members 20 20 relative to the cross-member 31.
  • As shown in FIGS. 1 through 3, if the cross-member 31 spans the opposite edges of an elevated level surface, the end cap members 32 32 may also be configured to extend beyond and down the opposite edges of the elevated level surface to prevent lateral displacement of the bookend construction 10 relative to the elevated level surface. Otherwise, as shown in FIG. 4, the end cap members 32 32 may be configured to rest on a level surface.
  • Finally, as shown in FIG. 5, an optional identical pair of holding blocks 40 each comprising a rear block 41, a base mat 42, and an attaching member 43 for attaching the base mat 42 to the rear block 41, functions to prevent aftward displacement of the bookend construction 10 relative to a collection of books functionally supported by the bookend construction 10. The attaching member 43 is dimensioned to rest with clearance beneath the cross-member 31. In this design, the aft edge of the base mat 42 folds upward and is sandwiched between the attaching member 43 and the rear block 41, typically attached using screws through the attaching member 43 and base mat 42 into the rear block 41. Part of the supported collection of books rests on each base mat 42 fixing each holding block assembly 40 in place. The base mat is thin so as not to interfere with the level integrity of the surface, yet durable to withstand removal and replacement of individual books. The advantage of holding block assemblies becomes apparent when considering a large collection of books in use.
  • Although only an exemplary embodiment of the invention has been described in detail above, those skilled in the art will readily appreciate that many modifications are possible without materially departing from the novel teachings and advantages of this invention. Accordingly, all such modifications are intended to be included within the scope of this invention as defined in the following claims.
  • Having thereby described the subject matter of the present invention, it should be apparent that many substitutions, modifications, and variations of the invention are possible in light of the above teachings. It is therefore to be understood that the invention as taught and described herein is only to be limited to the extent of the breadth and scope of the appended claims.
    TABLE 1
    Patents for Bookend Utility and Design
    Patent Date Title Description
    153227 Jul. 21, 1874 self adjusting book racks base channel sliding spring loaded
    158751 Jan. 12, 1875 book racks base fixed hinged
    161293 Mar. 23, 1875 book support shelf partition positive lock
    174262 Feb. 29, 1876 book rack base sliding hinged
    186974 Feb. 6, 1877 book support standard bookend interlocking partition
    202959 Apr. 30, 1878 book supports standard bookend
    305863 Sep. 30, 1884 book suppport shelf sliding
    314436 Mar. 24, 1885 book holder wraparound rigid
    314437 Mar. 24, 1885 book holder shelf side filler
    348382 Aug. 31, 1886 book holder shelf side filler
    355511 Jan. 4, 1887 book support shelf sliding
    386674 Jul. 24, 1888 paper or bill file base partition position stop
    388674 Aug. 28, 1888 book support for shelves shelf sliding
    423647 Mar 18, 1890 bill file base partition position stop
    431373 Jul. 1, 1890 book and paper rack base position stop
    436704 Sep. 16, 1890 book support shelf channel positive lock
    451729 May 5, 1891 paper or bill file base partition position stop
    452673 May 19, 1891 book support shelf sliding hinged linear clutch
    470050 Mar. 1, 1892 letter file base fixed hinged
    481505 Aug. 23, 1892 book support hanging partition position lever
    489693 Jan. 10, 1893 adjustable book rack base crossmember intersliding
    497993 May 23, 1893 automatic file holder base channel spring loaded
    502321 Aug. 1, 1893 adjustable shelf partition standard bookend
    504233 Aug. 29, 1893 book support shelf sliding
    518573 Apr. 17, 1894 book rack base crossmember partition sliding
    525186 Aug. 28, 1894 knockdown rack base channel thumbscrew lock
    527897 Oct. 23, 1894 book support base channel sliding
    538500 Apr. 30, 1895 document file base crossmember positive lock
    560851 May 26, 1896 book support hanging partition linear
    Figure US20050274681A1-20051215-P00899
    575294 Jan. 12, 1897 book support & label holder shelf partition sliding
    575832 Jan. 26, 1897 book support hanging partition
    583494 Jun. 1, 1897 book support base channel
    593758 Nov. 16, 1897 portable book rack base partition position stop
    608515 Aug. 22, 1898 book support shelf scissor side filler
    657847 Sep. 11, 1900 book case or rack shelf partition position lever
    660264 Oct. 23, 1900 divisible shelf shelf crossmember partition position stop
    668961 Feb. 26, 1901 book rack shelf scissor filler
    670446 Mar. 26, 1901 holding block for cases base channel sliding spring loaded
    679054 Jul. 23, 1901 shelf book support shelf partition sliding
    712936 Nov. 4, 1902 book holder shelf partition position stop
    758868 May 3, 1904 book support crossmember partition position stop
    767037 Aug. 9, 1904 shelf book support shelf partition sliding
    774984 Nov. 15, 1904 book support base position stop
    779262 Jan. 3, 1905 tray base channel sliding
    781890 Feb. 7, 1905 book supporter shelf sliding
    793364 Jun. 27, 1905 book & paper rack base partition interlock
    833887 Oct. 23, 1906 book support base channel partition hinged stowed
    850977 Apr. 23, 1907 book support standard bookend
    903769 Nov. 10, 1908 book support and adjustable shelf partition shelf partition thumbscrew lock
    931362 Aug. 17, 1909 movable partition or book support base position stop
    934148 Sep. 14, 1909 book rest base fixed
    935560 Sep. 28, 1909 book support hanging sliding
    945877 Jan. 11, 1910 desk book rack base crossmember intersliding
    999974 Aug. 8, 1911 file shelf base channel partition sliding
    1006328 Oct. 17, 1911 cigar rack base crossmember intersliding
    1022150 Apr. 2, 1912 book rack base crossmember intersliding hinged
    1049726 Jan. 7, 1913 display rack base crossmember partition sliding
    1237101 Aug. 14, 1917 book holder base channel dovetailed sliding spring loaded
    1257528 Feb. 26, 1918 file rack base partition position stop
    1283259 Oct. 29, 1918 ledger rack base channel mechanical
    1317550 Sep. 30, 1919 book rack base crossmember intersliding
    1336981 Apr. 13, 1920 book rack base channel sliding
    1340317 May 18, 1920 book shelf base channel sliding
    1358853 Nov. 16, 1920 binder tray base channel linear clutch
    1363138 Dec. 21, 1920 bookrack base crossmember partition
    Figure US20050274681A1-20051215-P00899
    1370279 Mar. 1, 1921 folding book stop standard bookend
    1379766 May 31, 1921 portable book holder base fixed
    1395825 Nov. 1, 1921 clamping device base recoiling strap
    1396910 Nov. 15, 1921 book frame and label holder standard bookend shelf
    1401171 Dec. 27, 1921 binder rack base position stop roller
    1409136 Mar. 7, 1922 book end standard bookend
    1415110 May 9, 1922 file rack base partition position stop
    1460642 Jul. 3, 1923 book rack base channel sliding
    1477634 Dec. 18, 1923 shipping case and display rack base fixed
    1489804 Apr. 8, 1924 follow board base channel partition linear
    Figure US20050274681A1-20051215-P00899
    1506204 Aug. 26, 1924 library book support & index shelf crossmember partition fixed
    1508610 Sep. 16, 1924 shelving shelf partition position stop
    1557419 Oct. 13, 1925 book end standard bookend
    1562275 Nov. 7, 1925 book supporting device base partition position stop
    1598467 Aug. 31, 1926 book support standard bookend (Weeks)
    1621410 Mar. 15, 1927 supporting rack base position stop
    1660823 Feb. 28, 1928 card index and document filling device base crossmember linear clutch
    1663432 Mar. 20, 1928 bookrack base linear clutch
    1674359 Jun. 19, 1928 filling device base crossmember linear clutch
    1674582 Jun. 19, 1928 bookholder base channel sliding spring loaded
    1675269 Sep. 13, 1923 book support shelf partition position stop
    1682053 Aug. 28, 1928 book support wraparound weighted
    1682060 Aug. 28, 1928 adjustable book holder base crossmember intersliding
    1704011 Mar. 5, 1929 book end base scissor
    1747496 Feb. 18, 1930 counter partition holder base channel partition sliding
    1750575 Mar. 11, 1930 sectional desk accessory base interlock
    1750576 Mar. 11, 1930 desk distributor set base interlock
    1768379 Jun. 24, 1930 tag and tag holding device base crossmember intersliding
    1772438 Aug. 5, 1930 office accessory base interlock
    1780872 Nov. 4, 1930 book rack or support base channel position stop
    1795526 Mar. 10, 1931 book support standard bookend comered
    1806642 May 26, 1931 bookstack shelf partition sliding
    1832884 Nov. 24, 1931 shelf follower and end support standard bookend friction block
    1853840 Apr. 12, 1932 book shelf base channel partition sliding
    1875288 Aug. 30, 1932 adjustable book supporting rack base channel thumbscrew lock
    1876346 Sep. 6, 1932 book ends base recoiling strap
    1891420 Dec. 20, 1932 book rack base linear clutch
    1898533 Feb. 21, 1933 paper file base channel
    1912229 May 30, 1933 book end standard bookend hinged
    1923996 Aug. 22, 1933 adjustable book end holder base crossmember intersliding
    1942456 Jan. 9, 1934 book holder standard bookend book support
    1992487 Feb. 26, 1935 combined bookedn & picture frame standard bookend
    2031698 Feb. 25, 1936 book end standard bookend
    2032086 Feb. 25, 1936 combination lamp stand and book rack base channel sliding spring loaded
    2051448 Aug. 18, 1936 adjustable book end holder base crossmember intersliding
    2062802 Dec. 1, 1936 display appliance base channel partition position stop
    2076941 Apr. 13, 1937 book end and like support base coil
    2096634 Oct. 19, 1937 book end base recoiling strap
    2104864 Jan. 11, 1938 support for books and the like hanging partition
    2111406 Mar. 15, 1938 collapsible portable book rest base fixed hinged
    2117667 May 17, 1938 book holder standard bookend book holder
    2117668 May 17, 1938 book holder standard bookend book holder
    2134606 Oct. 25, 1938 book rack base crossmember partition sliding
    2140656 Dec. 20, 1938 book end construction base crossmember sliding spring loaded
    2151269 Mar. 21, 1939 display rack for books standard bookend book support
    2206133 Jul. 2, 1940 book holder base channel sliding spring loaded
    2222190 Nov. 19, 1940 display rack base channel sliding position stop
    2264017 Nov. 25, 1941 bookrack base sliding ratchet
    2264086 Nov. 25, 1941 book support rack base scissor
    2284849 Jun. 2, 1942 book end base recoiling strap
    2294595 Sep. 1, 1942 adjustable book rack base crossmember intersliding
    2334251 Nov. 16, 1943 book ends standard bookend
    2364482 Dec. 5, 1944 book rack base fixed
    2368349 Jan. 30, 1945 filing cabinet guide separator base channel partition sliding
    2504466 Apr. 18, 1950 adjustable partition base crossmember partition intersliding position stop
    2529031 Nov. 7, 1950 book end base crossmember intersliding
    2534456 Dec. 19, 1950 self closing bookrack base channel dovetailed sliding spring loaded
    2537565 Jan. 9, 1951 book unit rack base partition fixed
    2538908 Jan. 23, 1951 shelf divider shelf partition sliding spring lock
    2545844 Mar. 20, 1951 automatically adjustable bookrack base crossmember intersliding spring loaded
    2566800 Sep. 4, 1951 center extension table base crossmember intersliding
    2620929 Dec. 9, 1952 multipurpose book rack base crossmember
    2624466 Jan. 6, 1953 bookholder base crossmember intersliding
    2652154 Sep. 15, 1953 display rack base channel partition sliding
    2658628 Nov. 10, 1953 adjustable shelf divider base partition position stop
    2661568 Dec. 8, 1953 book holder standard bookend
    2665010 Jan. 5, 1954 bookend base crossmember intersliding
    2675922 Apr. 20, 1954 bookrack hanging partition sliding
    2684765 Jul. 27, 1954 holder for books and the like base channel linear clutch
    2688409 Sep. 7, 1954 adjustable partition for shelves shelf crossmember partition sliding
    2726318 Dec. 6, 1955 bookend lamp base crossmember intersliding
    2732082 Jan. 24, 1956 bookracks base turning blocks
    2738881 Mar. 20, 1956 display and storage holder base recoiling strap
    2767856 Oct. 23, 1956 book support standard bookend
    2807369 Sep. 24, 1957 support for reading matter standard bookend book support
    2845188 Jul. 29, 1958 shelf and divider unit base partition position stop
    2872046 Feb. 3, 1959 book ends base interlock
    2884139 Apr. 28, 1959 snap-on bin divider shelf partition sliding
    2905336 Sep. 22, 1959 partition for filing cabinet rocker compartment shelf partition position stop
    2911103 Nov. 3, 1959 device for supporting books base channel spring loaded
    2953258 Sep. 20, 1960 detachable self wedging shelf divider hanging partition sliding
    2954878 Oct. 4, 1960 display rack base crossmember partition positive lock
    2959293 Nov. 8, 1960 record holder base crossmember sliding spring loaded
    3063567 Nov. 13, 1962 book rack base crossmember linear
    Figure US20050274681A1-20051215-P00899
    3120894 Feb. 11, 1964 shelving with reversible compressor base channel partition linear
    Figure US20050274681A1-20051215-P00899
    3121494 Feb. 18, 1964 book stop device shelf crossmember intersliding
    3126892 Mar. 31, 1964 adjustable partition for files base channel partition sliding positive lock
    3138262 Jun. 23, 1964 slotted bookshelf/support base channel linear clutch
    3142384 Jul. 28, 1964 adjustable bookshelves/bookends hanging channel partition sliding
    3160282 Dec. 8, 1964 vertical shelf unit base channel crossmember position stop
    3171542 Mar. 2, 1965 book rack base crossmember partition sliding
    3182806 May 11, 1965 book rack base coil
    3202290 Aug. 24, 1965 book care system shelf individual depth alignment
    3202298 Aug. 24, 1965 bookend hanging partition sliding
    3235092 Feb. 15, 1966 book support standard bookend friction bolck
    3241683 Mar. 22, 1966 article retainer base channel partition sliding
    3269558 Aug. 30, 1966 compartmented shelf device shelf partition position stop
    3285429 Nov. 15, 1966 shelf organizer shelf partition sliding
    3300057 Jan. 24, 1967 shelf organizer base partition interlock
    3301407 Jan. 31, 1967 shelf dividers base channel
    3318453 May 9, 1967 reversible file holder base crossmember fixed
    3318454 May 9, 1967 shelf with adjustable bookends base channel crossmember
    3385450 May 28, 1968 bookend standard bookend anti-tipping
    3389805 Jun. 25, 1968 self adjusting telescoping bookends base frictionless spring loaded
    3391793 Jul. 9, 1968 book rack base crossmember partition sliding
    3399782 Sep. 3, 1968 book ends base recoiling strap
    3425565 Feb. 4, 1969 adjustable storage shelf dividing structure base position stop
    3450268 Jun. 17, 1969 bookshelf divider & holder hanging partition position lever
    3465896 Sep. 9, 1969 bookshelf and book support hanging channel sliding
    3489292 Jan. 13, 1970 book support hanging sliding
    3513983 May 26, 1970 shelf assembly base channel linear clutch
    3579710 May 25, 1971 traversable hardware in driveway base crossmember partition sliding
    3601258 Aug. 24, 1971 bookend for shelves shelf sliding
    3604564 Jul. 8, 1969 book ends standard bookend magnetic
    3679064 Jul. 25, 1972 article holder base crossmember intersliding
    3739918 Jun. 19, 1973 cloth bolt holder base crossmember sliding
    3747775 Jul. 24, 1973 holder for books and the like base crossmember sliding
    3780873 Dec. 25, 1973 automatic display racks base crossmember partition sliding
    3780876 Dec. 25, 1973 shelf divider shelf partition sliding
    3784021 Jan. 8, 1974 bookrack pivoting interlock
    3800958 Apr. 2, 1974 bookrack base crossmember sliding spring loaded
    3844415 Oct. 29, 1974 support device for files base crossmember intersliding
    3889816 Jun. 17, 1975 book holder and separator hanging partition position stop
    3905484 Sep. 16, 1975 flexible dividers for lateral shelf filing shelf partition position stop
    3971556 Jul. 27, 1976 combination book end and dumbell apparatus standard bookend weighted
    3974918 Aug. 17, 1976 magnetic book supporting structure base channel sliding
    4002240 Jan. 11, 1977 combined bookrack and book support base crossmember fixed
    4099624 Jul. 11, 1978 portable book rack base crossmember partition position stop
    4106735 Aug. 15, 1978 adjustable coil rack base interlock
    4113108 Sep. 12, 1978 adjustable book holding device base channel linear clutch
    4135626 Jan. 23, 1979 constant force spring expandable clasp holder base recoiling strap
    4327838 May 4, 1982 clip-on book end shelf partition sliding
    4358019 Nov. 9, 1982 book end base interlock cornered
    4410093 Oct. 18, 1983 device for organizing papers and files base position stop
    4463854 Aug. 7, 1984 book support assembly base recoiling wire
    4569447 Feb. 11, 1986 bookrack base fixed
    4595105 Jun. 17, 1986 interlocking bookrack base partition fixed
    4606465 Aug. 19, 1986 expansible spring-loaded retention clamp base rolling strap
    4637632 Jan. 20, 1987 holding device base interlock
    4682696 Jul. 28, 1987 adjustable bookrack base channel thumbscrew lock
    4735324 Apr. 5, 1988 removable shelf separator and system base crossmember partition sliding
    4742922 May 10, 1988 book rack of selective capacity base interlock
    4759449 Jul. 26, 1988 interlocking expandable bookrack base partition position stop
    4782960 Nov. 8, 1988 divider with resilient base engagement shelf channel partition sliding
    4858774 Aug. 22, 1989 shelving system shelf partition position stop
    4944413 Jul. 31, 1990 book support apparatus base partition fixed
    5036988 Aug. 6, 1991 bookend for metal shelves standard bookend
    5072835 Dec. 17, 1991 tape cartridge holder base partition sliding
    5074420 Dec. 24, 1991 free-standing rack assembly base crossmember partition fixed
    5103987 Apr. 14, 1992 shelf engaging bookend shelf linear clutch
    5121681 Jun. 16, 1992 extendible book shelf base partition crossmember position stop
    5183163 Feb. 2, 1993 interlocking continuous base bookends base interlock
    5205420 Apr. 27, 1993 adjustable & self locking book rack/support base channel dovetailed linear clutch
    5209357 May 11, 1993 hanging bookend device hanging partition sliding
    5217122 Jun. 8, 1993 adjustable bookend apparatus hanging sliding spring loaded
    5217124 Jun. 8, 1993 clip-on divider shelf device shelf partition sliding
    5228578 Jul. 20, 1993 adjustable book shelf base crossmember partition sliding
    5275297 Jan. 4, 1994 clip-on book support and label holder shelf partition sliding
    5325792 Jul. 5, 1994 bookshelf w/adjustable locking bookends base channel sliding press release
    5732832 Mar. 31, 1998 adjustable divider unit to support notebooks shelf partition position stop
    5740926 Apr. 21, 1998 bookshelf w/adjustable locking bookends base channel thumbscrew lock
    5871104 Feb. 16, 1999 adjustable support apparatus hanging channel spring hinge
    6334539 Jun. 1, 2002 bendable bookend standard bookend
    6352162 Mar. 5, 2002 interlocking bookends base interlock
    6354446 Mar. 12, 2002 space adjustable interlocking crossmember partition interlock
    6578717 Jun. 17, 2003 economical desktop bookcase base fixed
    base 151 current patents
    shelf 41 no proprietary base
    hanging 16 linear clutch concept
    crossmember 2
    Figure US20050274681A1-20051215-P00899
    wraparound 2
    pivoting interlock 1
    standard bookend variation 28
    241
  • TABLE 2
    Patents for Bookend Utility and Design
    Patent Date Title Description
    583494 Jun. 1, 1897 book support base channel
    1898533 Feb. 21, 1933 paper file base channel
    3301407 Jan. 31, 1967 shelf dividers base channel
    3318454 May 9, 1967 shelf with adjustable bookends base channel crossmember
    3160282 Dec. 8, 1964 vertical shelf unit base channel crossmember position stop
    5205420 Apr. 27, 1993 adjustable & self locking book rack/support base channel dovetailed
    Figure US20050274681A1-20051215-P00899
    1237101 Aug. 14, 1917 book holder base channel dovetailed sliding spring loaded
    2534456 Dec. 19, 1950 self closing bookrack base channel dovetailed sliding spring loaded
    1358853 Nov. 16, 1920 binder tray base channel linear clutch
    Figure US20050274681A1-20051215-P00899
    2684765 Jul. 27, 1954 holder for books and the like base channel linear clutch
    Figure US20050274681A1-20051215-P00899
    3138262 Jun. 23, 1964 slotted bookshelf/support base channel linear clutch
    Figure US20050274681A1-20051215-P00899
    3513983 May 26, 1970 shelf assembly base channel linear clutch
    Figure US20050274681A1-20051215-P00899
    4113108 Sep. 12, 1978 adjustable book holding device base channel linear clutch
    Figure US20050274681A1-20051215-P00899
    1283259 Oct. 29, 1918 ledger rack base channel mechanical
    833887 Oct. 23, 1906 book support base channel partition hinged stowed
    1489804 Apr. 8, 1924 follow board base channel partition linear
    Figure US20050274681A1-20051215-P00899
    3120894 Feb. 11, 1964 shelving with reversible compressor base channel partition linear
    Figure US20050274681A1-20051215-P00899
    2062802 Dec. 1, 1936 display appliance base channel partition position stop
    999974 Aug. 8, 1911 file shelf base channel partition sliding
    1747496 Feb. 18, 1930 counter partition holder base channel partition sliding
    1853840 Apr. 12, 1932 book shelf base channel partition sliding
    2368349 Jan. 30, 1945 filing cabinet guide separator base channel partition sliding
    2652154 Sep. 15, 1953 display rack base channel partition sliding
    3241683 Mar. 22, 1966 article retainer base channel partition sliding
    3126892 Mar. 31, 1964 adjustable partition for files base channel partition sliding positive lock
    1780872 Nov. 4, 1930 book rack or support base channel position stop
    527897 Oct. 23, 1894 book support base channel sliding
    779262 Jan. 3, 1905 tray base channel sliding
    1336981 Apr. 13, 1920 book rack base channel sliding
    1340317 May 18, 1920 book shelf base channel sliding
    1460642 Jul. 3, 1923 book rack base channel sliding
    3974918 Aug. 17, 1976 magnetic book supporting structure base channel sliding
    2222190 Nov. 19, 1940 display rack base channel sliding position stop
    5325792 Jul. 5, 1994 bookshelf w/adjustable locking bookends base channel sliding press release
    153227 Jul. 21, 1874 self adjusting book racks base channel sliding spring loaded
    670446 Mar. 26, 1901 holding block for cases base channel sliding spring loaded
    1674582 Jun. 19, 1928 bookholder base channel sliding spring loaded
    2032086 Feb. 25, 1936 combination lamp stand and book rack base channel sliding spring loaded
    2206133 Jul. 2, 1940 book holder base channel sliding spring loaded
    497993 May 23, 1893 automatic file holder base channel spring loaded
    2911103 Nov. 3, 1959 device for supporting books base channel spring loaded
    525186 Aug. 28, 1894 knockdown rack base channel thumbscrew lock
    1875288 Aug. 30, 1932 adjustable book supporting rack base channel thumbscrew lock
    4682696 Jul. 28, 1987 adjustable bookrack base channel thumbscrew lock
    5740926 Apr. 21, 1998 bookshelf w/adjustable locking bookends base channel thumbscrew lock
    2076941 Apr. 13, 1937 book end and like support base coil
    3182806 May 11, 1965 book rack base coil
    2620929 Dec. 9, 1952 multipurpose book rack base crossmember
    3318453 May 9, 1967 reversible file holder base crossmember fixed
    4002240 Jan. 11, 1977 combined bookrack and book support base crossmember fixed
    489693 Jan. 10, 1893 adjustable book rack base crossmember intersliding
    945877 Jan. 11, 1910 desk book rack base crossmember intersliding
    1006328 Oct. 17, 1911 cigar rack base crossmember intersliding
    1317550 Sep. 30, 1919 book rack base crossmember intersliding
    1682060 Aug. 28, 1928 adjustable book holder base crossmember intersliding
    1768379 Jun. 24, 1930 tag and tag holding device base crossmember intersliding
    1923996 Aug. 22, 1933 adjustable book end holder base crossmember intersliding
    2051448 Aug. 18, 1936 adjustable book end holder base crossmember intersliding
    2294595 Sep. 1, 1942 adjustable book rack base crossmember intersliding
    2529031 Nov. 7, 1950 book end base crossmember intersliding
    2566800 Sep. 4, 1951 center extension table base crossmember intersliding
    2624466 Jan. 6, 1953 bookholder base crossmember intersliding
    2665010 Jan. 5, 1954 bookend base crossmember intersliding
    2726318 Dec. 6, 1955 bookend lamp base crossmember intersliding
    3679064 Jul. 25, 1972 article holder base crossmember intersliding
    3844415 Oct. 29, 1974 support device for files base crossmember intersliding
    1022150 Apr. 2, 1912 book rack base crossmember intersliding hinged
    2545844 Mar. 20, 1951 automatically adjustable bookrack base crossmember intersliding spring loaded
    1660823 Feb. 28, 1928 card index and document filing device base crossmember linear clutch
    1674359 Jun. 19, 1928 filing device base crossmember linear clutch
    3063567 Nov. 13, 1962 book rack base crossmember linear clutch
    5074420 Dec. 24, 1991 free-standing rack assembly base crossmember partition fixed
    2504466 Apr. 18, 1950 adjustable partition base crossmember partition intersliding position stop
    1363138 Dec. 21, 1920 bookrack base crossmember partition intersliding
    4099624 Jul. 11, 1978 portable book rack base crossmember partition position stop
    2954878 Oct. 4, 1960 display rack base crossmember partition positive lock
    518573 Apr. 17, 1894 book rack base crossmember partition sliding
    1049726 Jan. 7, 1913 display rack base crossmember partition sliding
    2134606 Oct. 25, 1938 book rack base crossmember partition sliding
    3171542 Mar. 2, 1965 book rack base crossmember partition sliding
    3391793 Jul. 9, 1968 book rack base crossmember partition sliding
    3579710 May 25, 1971 traversable hardware in driveway base crossmember partition sliding
    3780873 Dec. 25, 1973 automatic display racks base crossmember partition sliding
    4735324 Apr. 5, 1988 removable shelf separator and system base crossmember partition sliding
    5228578 Jul. 20, 1993 adjustable book shelf base crossmember partition sliding
    538500 Apr. 30, 1895 document file base crossmember positive lock
    3739918 Jun. 19, 1973 cloth bolt holder base crossmember sliding
    3747775 Jul. 24, 1973 holder for books and the like base crossmember sliding
    2140656 Dec. 20, 1938 book end construction base crossmember sliding spring loaded
    2959293 Nov. 8, 1960 record holder base crossmember sliding spring loaded
    3800958 Apr. 2, 1974 bookrack base crossmember sliding spring loaded
    934148 Sep. 14, 1909 book rest base fixed
    1379766 May 31, 1921 portable book holder base fixed
    1477634 Dec. 18, 1923 shipping case and display rack base fixed
    2364482 Dec. 5, 1944 book rack base fixed
    4569447 Feb. 11, 1986 book rack base fixed
    6578717 Jun. 17, 2003 economical desktop bookcase base fixed
    158751 Jan. 12, 1875 book racks base fixed hinged
    470050 Mar. 1, 1892 letter file base fixed hinged
    2111406 Mar. 15, 1938 collapsible portable book rest base fixed hinged
    3389805 Jun. 25, 1968 self adjusting telescoping bookends base frictionless spring loaded
    1750575 Mar. 11, 1930 sectional desk accessory base interlock
    1750576 Mar. 11, 1930 desk distributor set base interlock
    1772438 Aug. 5, 1930 office accessory base interlock
    2872046 Feb. 3, 1959 book ends base interlock
    4106735 Aug. 15, 1978 adjustable coil rack base interlock
    4637632 Jan. 20, 1987 holding device base interlock
    4742922 May 10, 1988 book rack of selective capacity base interlock
    5183163 Feb. 2, 1993 interlocking continuous base bookends base interlock
    6352162 Mar. 5, 2002 interlocking bookends base interlock
    4358019 Nov. 9, 1982 book end base interlock cornered
    1663432 Mar. 20, 1928 bookrack base linear clutch
    1891420 Dec. 20, 1932 book rack base linear clutch
    5121681 Jun. 16, 1992 extendible book shelf base partition crossmember position stop
    2537565 Jan. 9, 1951 book unit rack base partition fixed
    4595105 Jun. 17, 1986 interlocking bookrack base partition fixed
    4944413 Jul. 31, 1990 book support apparatus base partition fixed
    793364 Jun. 27, 1905 book & paper rack base partition interlock
    3300057 Jan. 24, 1967 shelf organizer base partition interlock
    386674 Jul. 24, 1888 paper or bill file base partition position stop
    423647 Mar 18, 1890 bill file base partition position stop
    451729 May 5, 1891 paper or bill file base partition position stop
    593758 Nov. 16, 1897 portable book rack base partition position stop
    1257528 Feb. 26, 1918 file rack base partition position stop
    1415110 May 9, 1922 file rack base partition position stop
    1562275 Nov. 7, 1925 book supporting device base partition position stop
    2658628 Nov. 10, 1953 adjustable shelf divider base partition position stop
    2845188 Jul. 29, 1958 shelf and divider unit base partition position stop
    4759449 Jul. 26, 1988 interlocking expandable bookrack base partition position stop
    5072835 Dec. 17, 1991 tape cartridge holder base partition sliding
    431373 Jul. 1, 1890 book and paper rack base position stop
    774984 Nov. 15, 1904 book support base position stop
    931362 Aug. 17, 1909 movable partition or book support base position stop
    1621410 Mar. 15, 1927 supporting rack base position stop
    3425565 Feb. 4, 1969 adjustable storage shelf dividing structure base position stop
    4410093 Oct. 18, 1983 device for organizing papers and files base position stop
    1401171 Dec. 27, 1921 binder rack base position stop roller
    1395825 Nov. 1, 1921 clamping device base recoiling strap
    1876346 Sep. 6, 1932 book ends base recoiling strap
    2096634 Oct. 19, 1937 book end base recoiling strap
    2284849 Jun. 2, 1942 book end base recoiling strap
    2738881 Mar. 20, 1956 display and storage holder base recoiling strap
    3399782 Sep. 3, 1968 book ends base recoiling strap
    4135626 Jan. 23, 1979 constant force spring expandable clasp holder base recoiling strap
    4463854 Aug. 7, 1984 book support assembly base recoiling wire
    4606465 Aug. 19, 1986 expansible spring-loaded retention clamp base rolling strap
    1704011 Mar. 5, 1929 book end base scissor
    2264086 Nov. 25, 1941 book support rack base scissor
    174262 Feb. 29, 1876 book rack base sliding hinged
    2264017 Nov. 25, 1941 bookrack base sliding ratchet
    2732082 Jan. 24, 1956 bookracks base turning blocks
    6354446 Mar. 12, 2002 space adjustable interlocking crossmember partition interlock
    758868 May 3, 1904 book support crossmember partition position stop
    3142384 Jul. 28, 1964 adjustable bookshelves/bookends hanging channel partition sliding
    3465896 Sep. 9, 1969 bookshelf and book support hanging channel sliding
    5871104 Feb. 16, 1999 adjustable support apparatus hanging channel spring hinge
    575832 Jan. 26, 1897 book support hanging partition
    2104864 Jan. 11, 1938 support for books and the like hanging partition
    560851 May 26, 1896 book support
    Figure US20050274681A1-20051215-P00899
    481505 Aug. 23, 1892 book support hanging partition position lever
    3450268 Jun. 17, 1969 bookshelf divider & holder hanging partition position lever
    3889816 Jun. 17, 1975 book holder and separator hanging partition position stop
    2675922 Apr. 20, 1954 bookrack hanging partition sliding
    2953258 Sep. 20, 1960 detachable self wedging shelf divider hanging partition sliding
    3202298 Aug. 24, 1965 bookend hanging partition sliding
    5209357 May 11, 1993 hanging bookend device hanging partition sliding
    935560 Sep. 28, 1909 book support hanging sliding
    3489292 Jan. 13, 1970 book support hanging sliding
    5217122 Jun. 8, 1993 adjustable bookend apparatus hanging sliding spring loaded
    3784021 Jan. 8, 1974 bookrack pivoting interlock
    4782960 Nov. 8, 1988 divider with resilient base engagement shelf channel partition sliding
    436704 Sep. 16, 1890 book support shelf channel positive lock
    3121494 Feb. 18, 1964 book stop device shelf crossmember intersliding
    1506204 Aug. 26, 1924 library book support & index shelf crossmember partition fixed
    660264 Oct. 23, 1900 divisible shelf shelf crossmember partition position stop
    2688409 Sep. 7, 1954 adjustable partition for shelves shelf crossmember partition sliding
    3202290 Aug. 24, 1965 book care system shelf individual depth alignment
    5103987 Apr. 14, 1992 shelf engaging bookend
    Figure US20050274681A1-20051215-P00899
    657847 Sep. 11, 1900 book case or rack shelf partition position lever
    712936 Nov. 4, 1902 book holder shelf partition position stop
    1508610 Sep. 16, 1924 shelving shelf partition position stop
    1675269 Sep. 13, 1923 book support shelf partition position stop
    2905336 Sep. 22, 1959 partition for filling cabinet rocker compartment shelf partition position stop
    3269558 Aug. 30, 1966 compartmented shelf device shelf partition position stop
    3905484 Sep. 16, 1975 flexible dividers for lateral shelf filling shelf partition position stop
    4858774 Aug. 22, 1989 shelving system shelf partition position stop
    5732832 Mar. 31, 1998 adjustable divider unit to support notebooks shelf partition position stop
    161293 Mar. 23, 1875 book support shelf partition positive lock
    575294 Jan. 12, 1897 book support & label holder shelf partition sliding
    679054 Jul. 23, 1901 shelf book support shelf partition sliding
    767037 Aug. 9, 1904 shelf book support shelf partition sliding
    1806642 May 26, 1931 bookstack shelf partition sliding
    2884139 Apr. 28, 1959 snap-on bin divider shelf partition sliding
    3285429 Nov. 15, 1966 shelf organizer shelf partition sliding
    3780876 Dec. 25, 1973 shelf divider shelf partition sliding
    4327838 May 4, 1982 clip-on book end shelf partition sliding
    5217124 Jun. 8, 1993 clip-on divider shelf device shelf partition sliding
    5275297 Jan. 4, 1994 clip-on book support and label holder shelf partition sliding
    2538908 Jan. 23, 1951 shelf divider shelf partition sliding spring lock
    903769 Nov. 10, 1908 book support and adjustable shelf partition shelf partition thumbscrew lock
    668961 Feb. 26, 1901 book rack shelf scissor filler
    608515 Aug. 22, 1898 book support shelf scissor side filler
    314437 Mar. 24, 1885 book holder shelf side filler
    348382 Aug. 31, 1886 book holder shelf side filler
    305863 Sep. 30, 1884 book suppport shelf sliding
    355511 Jan. 4, 1887 book support shelf sliding
    388674 Aug. 28, 1888 book support for shelves shelf sliding
    504233 Aug. 29, 1893 book support shelf sliding
    781890 Feb. 7, 1905 book supporter shelf sliding
    3601258 Aug. 24, 1971 bookend for shelves shelf sliding
    452673 May 19, 1891 book support shelf sliding hinged linear clutch
    202959 Apr. 30, 1878 book supports standard bookend
    502321 Aug. 1, 1893 adjustable shelf partition standard bookend
    850977 Apr. 23, 1907 book support standard bookend
    1370279 Mar. 1, 1921 folding book stop standard bookend
    1409136 Mar. 7, 1922 book end standard bookend
    1557419 Oct. 13, 1925 book end standard bookend
    1992487 Feb. 26, 1935 combined bookedn & picture frame standard bookend
    2031698 Feb. 25, 1936 book end standard bookend
    2334251 Nov. 16, 1943 book ends standard bookend
    2661568 Dec. 8, 1953 book holder standard bookend
    2767856 Oct. 23, 1956 book support standard bookend
    5036988 Aug. 6, 1991 bookend for metal shelves standard bookend
    6334539 Jun. 1, 2002 bendable bookend standard bookend
    1598467 Aug. 31, 1926 book support standard bookend (Weeks)
    3385450 May 28, 1968 bookend standard bookend anti-tipping
    2117667 May 17, 1938 book holder standard bookend book holder
    2117668 May 17, 1938 book holder standard bookend book holder
    1942456 Jan. 9, 1934 book holder standard bookend book support
    2151269 Mar. 21, 1939 display rack for books standard bookend book support
    2807369 Sep. 24, 1957 support for reading matter standard bookend book support
    1795526 Mar. 10, 1931 book support standard bookend comered
    1832884 Nov. 24, 1931 shelf follower and end support standard bookend friction block
    3235092 Feb. 15, 1966 book support standard bookend friction block
    1912229 May 30, 1933 book end standard bookend hinged
    186974 Feb. 6, 1877 book support standard bookend interlocking partition
    3604564 Jul. 8, 1969 book ends standard bookend magnetic
    1396910 Nov. 15, 1921 book frame and label holder standard bookend shelf
    3971556 Jul. 27, 1976 combination book end and dumbell apparatus standard bookend weighted
    314436 Mar. 24, 1885 book holder wraparound rigid
    1682053 Aug. 28, 1928 book support wraparound weighted
    base 151 current patents
    shelf 41 no proprietary base
    hanging 16 linear clutch concept
    crossmember 2
    Figure US20050274681A1-20051215-P00899
    wraparound 2
    pivoting interlock 1
    standard bookend variation 28
    241
  • TABLE 3
    Functional Descriptions
    Description
    base channel
    base channel crossmember
    base channel crossmember position stop
    Figure US20050274681A1-20051215-P00899
    base channel dovetailed sliding spring loaded
    Figure US20050274681A1-20051215-P00899
    base channel mechanical
    base channel partition hinged stowed
    Figure US20050274681A1-20051215-P00899
    base channel partition position stop
    base channel partition sliding
    base channel partition sliding positive lock
    base channel position stop
    base channel sliding
    base channel sliding position stop
    base channel sliding press release
    base channel sliding spring loaded
    base channel spring loaded
    base channel thumbscrew lock
    base coil
    base crossmember
    base crossmember fixed
    base crossmember intersliding
    base crossmember intersliding hinged
    base crossmember intersliding spring loaded
    base crossmember linear clutch
    base crossmember partition fixed
    base crossmember partition intersliding position stop
    base crossmember partition linear clutch
    base crossmember partition position stop
    base crossmember partition positive lock
    base crossmember partition sliding
    base crossmember positive lock
    base crossmember sliding
    base crossmember sliding spring loaded
    base fixed
    base fixed hinged
    base frictionless spring loaded
    base interlock
    base interlock cornered
    base linear clutch
    base partition crossmember position stop
    base partition fixed
    base partition interlock
    base partition position stop
    base partition sliding
    base position stop
    base position stop roller
    base recoiling strap
    base recoiling wire
    base rolling strap
    base scissor
    base sliding hinged
    base sliding ratchet
    base turning blocks
    crossmember partition interlock
    crossmember partition position stop
    hanging channel partition sliding
    hanging channel sliding
    hanging channel spring hinge
    hanging partition
    Figure US20050274681A1-20051215-P00899
    hanging partition position stop
    hanging partition sliding
    hanging sliding
    hanging sliding spring loaded
    pivoting interlock
    shelf channel partition sliding
    shelf crossmember intersliding
    shelf crossmember partition fixed
    shelf crossmember partition position stop
    shelf crossmember partition sliding
    shelf individual depth alignment
    shelf linear cluctch
    Figure US20050274681A1-20051215-P00899
    shelf partition position lever
    shelf partition position stop
    shelf partition sliding
    shelf partition sliding spring lock
    shelf partition thumbscrew lock
    shelf scissor filler
    shelf scissor side, filler
    shelf side filler
    shelf sliding
    shelf sliding hinged linear clutch
    standard bookend (Weeks)
    standard bookend anti-tipping
    standard bookend book support
    standard bookend cornered
    standard bookend friction block
    standard bookend interlocking partition
    standard bookend magnetic
    standard bookend shelf
    standard bookend weighted
    wraparound rigid
    wraparound weighted
  • TABLE 4
    Functional Descriptors
    Description Echelon 1 Echelon 2 Echelon 3 Echelon 4 Echelon 5 Reference
    base channel crossmember position stop base channel crossmember position stop 3160282
    base channel dovetailed linear clutch dovetailed linear clutch 5205420
    base channel dovetailed sliding spring loaded sliding spring loaded 1237101
    base channel linear clutch linear clutch 1358853
    base channel mechanical mechanical 1283259
    base channel partition hinged stowed partition hinged stowed 833887
    base channel partition linear clutch linear clutch 1489804
    base channel partition position stop position stop 2062802
    base channel partition sliding positive lock sliding positive lock 3126892
    base channel position stop position stop 1780872
    base channel sliding position stop sliding position stop 2222190
    base channel sliding press release press release 5325792
    base channel sliding spring loaded spring loaded 153227
    base channel spring loaded spring loaded 497993
    base channel thumbscrew lock thumbscrew lock 525186
    base coil coil 2076941
    base crossmember fixed crossmember fixed 3318453
    base crossmember intersliding hinged intersliding hinged 1022150
    base crossmember intersliding spring loaded spring loaded 2545844
    base crossmember linear clutch linear clutch 1660823
    base crossmember partition fixed partition fixed 5074420
    base crossmember partition intersliding position stop intersliding position stop 2504466
    base crossmember partition linear clutch linear clutch 1363138
    base crossmember partition position stop position stop 4099624
    base crossmember partition positive lock positive lock 2954878
    base crossmember partition sliding sliding 518573
    base crossmember positive lock positive lock 538500
    base crossmember sliding spring loaded sliding spring loaded 2140656
    base fixed hinged fixed hinged 158751
    base frictionless spring loaded frictionless spring loaded 3389805
    base interlock cornered interlock cornered 4358019
    base linear clutch linear clutch 1663432
    base partition crossmember position stop partition crossmember position stop 5121681
    base partition fixed fixed 2537565
    base partition interlock interlock 3300057
    base partition position stop position stop 423647
    base partition sliding sliding 5072835
    base position stop roller position stop roller 1401171
    base recoiling strap recoiling strap 1395825
    base recoiling wire wire 4463854
    base rolling strap rolling strap 4606465
    base scissor scissor 1704011
    base sliding hinged sliding hinged 174262
    base sliding ratchet ratchet 2264017
    base turning blocks turning blocks 2732082
    crossmember partition interlock crossmember partition interlock 6354446
    crossmember partition position stop position stop 758868
    hanging channel partition sliding hanging channel partition sliding 3142384
    hanging channel sliding sliding 3465896
    hanging channel spring hinge spring hinge 5871104
    hanging partition linear clutch partition linear clutch 560851
    hanging partition position stop position stop 3889816
    hanging partition sliding sliding 2675922
    hanging sliding spring loaded sliding spring loaded 5217122
    plvoting interlock pivoting interlock 3784021
    shelf channel partition sliding shelf channel partition sliding 4782960
    shelf crossmember intersliding crossmember intersliding 3121494
    shelf crossmember partition fixed partition fixed 1506204
    shelf crossmember partition position stop position stop 660264
    shelf crossmember partition sliding sliding 1506204
    shelf individual depth alignment individual depth 3202290
    shelf linear clutch linear clutch 5103987
    shelf partition position lever partition position lever 657847
    shelf partition position stop position stop 712936
    shelf partition sliding spring lock sliding spring lock 767037
    shelf partition thumbscrew lock thumbscrew lock 903769
    shelf scissor filler scissor filler 668961
    shelf scissor side filler side filler 608515
    shelf side filler side filler 314437
    shelf sliding linear clutch hinged sliding linear clutch hinged 305863
    standard bookend standard bookend variation 202959
    wraparound rigid wraparound rigid 314436
    wraparound weighted weighted 1682053
    base 45
    shelf 15
    hanging 7
    crossmember 2
    wraparound 2
    plvoting interlock 1
    standard bookend variation 1
    73
  • date activity OPR
    26-Aug-03 completed first design and prototype Rivers
    2-Oct-03 disclosed invention (Reed Sawyer witness) AIF
    6-Oct-03 disclosure filed USPTO
    8-Oct-03 paid for preliminary appraisal AIF
    15-Oct-03 paid for preliminary search Rivers
    17-Oct-03 completed circular design Rivers
    10-Nov-03 received letter of expectation AIF
    13-Nov-03 completed preliminary search results AIF
    21-Nov-03 submitted initial description to AIF Rivers
    24-Nov-03 letter acknowledging initial submission AIF
    12-Dec-03 submitted additional description Rivers
    5-Jan-04 returned first draft of application AIF
    12-Jan-04 submitted review of draft application to AIF Rivers
    2-Feb-04 visited AIF & requested status Rivers
    6-Feb-04 AIF quoted $313.00 for changes AIF
    12-Feb-04 re-submitted review of draft application to AIF Rivers
    30-Mar-04 visited AIF & requested status Rivers
    31-Mar-04 received phone call from AIF AIF
    22-Apr-04 returned second draft of application AIF
  • # Nomenclature Width Height Thickness Depth Diameter Disclosure Nomenclature
    10 Adjustable Width Bookend Construction Tabletop Bookshelf
    20 Bookend Member (left or right) Bookend
    21 Vertically Oriented Rear Wall Panel 4 8 ¾ Back Plate
    22 Vertically Oriented Side Wall 7¼ 8 ¾ End Plate
    23 Inwardly Projecting Support Member 5/16 Peg, End Stop, Stop Post
    24 Elongated Slot ¾ 3¼ ¾ Notch
    30 Spanner Unit
    31 Cross-Member 2½ ¾ Cross-Member
    32 End Cap Member End Cap
    33 End Plate 2½ 4 ¾
    34 Lower Support Leg 1¼ ¾ ¾
    35 Capture Arm 1¼ ¾ ¾
    36 Inwardly Facing Groove ¼
    40 Holding Block Holding Block
    41 Rear Block 7 2 1½
    42 Base Mat 7 1/16 12 Base Mat
    43 Attaching Member 7 ¾ ¾
  • Patent Date Title Concept
    1 355511 Jan. 4, 1887 book support base with shelf sliders
    2 497993 May 23, 1893 automatic file holder base channel linear clutch spring loaded
    3 518573 Apr. 17, 1894 book rack base crossmember with sliding partition
    4 527897 Oct. 23, 1894 book support base channel with spring linear clutch
    5 583494 Jun. 1, 1897 book support base channel
    6 931362 Aug. 17, 1909 movable partition or book support base position locks
    7 945877 Jan. 11, 1910 desk book rack base intersliding crossmember
    8 1237101 Aug. 14, 1917 book holder base channel dovetalled linear clutch spring loaded
    9 1317550 Sep. 30, 1919 book rack base intersliding crossmember
    10 1336981 Apr. 13, 1920 book rack base channel sliding friction
    11 1363138 Dec. 21, 1920 bookrack base crossmember with sliding lever lock
    12 1379766 May 31, 1921 portable book holder base with fixed sides
    13 1675269 Sep. 13, 1923 book suppot shelves with position lock partitions
    14 1598467 Aug. 31, 1926 book support standard bookend
    15 1663432 Mar. 20, 1928 bookrack base linear clutch
    16 1674359 Jun. 19, 1928 filing device base crossmember with linear clutch
    17 1674582 Jun. 19, 1928 bookholder base channel with spring-loaded slide
    18 1682060 Aug. 28, 1928 adjustable book holder base intersliding crossmember
    19 1750575 Mar. 11, 1930 sectional desk accessory base interlock
    20 1750576 Mar. 11, 1930 desk distributor set base interlock
    21 1768379 Jun. 24, 1930 tag and tag holding device base sliding plate
    22 1772438 Aug. 5, 1930 office accessory base interlock
    23 1780872 Nov. 4, 1930 book rack or support base channel with positive stops
    24 1898533 Feb. 21, 1933 paper file base channel
    25 2032086 Feb. 25, 1936 combination lamp stand and book rack base sliding plate spring loaded
    26 2134606 Oct. 25, 1938 book rack base crossmember with sliding partition
    27 2140656 Dec. 20, 1938 book end construction base crossmember sliding plates spring loaded
    28 2206133 Jul. 2, 1940 book holder base channel with linear clutch spring loaded
    29 2264017 Nov. 25, 1941 bookrack base ratchet lock
    30 2294595 Sep. 1, 1942 adjustable book rack base intersliding crosmembers
    31 2545844 Mar. 20, 1951 automatically adjustable bookrack base spring-loaded intersliding crossmember
    32 2620929 Dec. 9, 1952 multipurpose book rack base crossmember
    33 2684765 Jul. 27, 1954 holder for books and the like base channel with linear clutch
    34 2911103 Nov. 3, 1959 device for supporting books base spring-loaded channel
    35 3063567 Nov. 13, 1962 book rack base crossmember with linear clutch
    36 3126892 Mar. 31, 1964 adjustable partition for files base channel with friction slide partitions
    37 3138262 Jun. 23, 1964 slotted bookshelf/support base channel with linear clutch
    38 3142384 Jul. 28, 1964 adjustable bookshelves/bookends hanging channel with sliding partitions
    39 3202298 Aug. 24, 1965 bookend hanging channel with sliding partitions
    40 3301407 Jan. 31, 1967 shelf dividers base channel
    41 3318454 May 9, 1967 shelf with adjustable bookends base channel with crossmember
    42 3389805 Jun. 25, 1968 self adjusting telescoping bookends base spring-loaded slide
    43 3425565 Feb. 4, 1969 adjustable storage shelf dividing structure base positions lock
    44 D241295 Sep. 7, 1976 base channel
    45 4113108 Sep. 12, 1978 adjustable book holding device base channel with sliding friction
    46 4682696 Jul. 28, 1987 adjustable bookrack base channel with thumbscrew lock
    47 5103987 Apr. 14, 1992 shelf engaging bookend
    Figure US20050274681A1-20051215-P00899
    48 5183163 Feb. 2, 1993 interlocking continuous base bookends base interlock
    49 5205420 Apr. 27, 1993 adjustable & self locking book rack/support base channel dovetalled linear clutch
    50 5228578 Jul. 20, 1993 adjustable book shelf base crossmember with partitions
    51 5325792 Jul. 5, 1994 bookshelf w/adjustable locking bookends base channel with positive lock
    52 5740926 Apr. 21, 1998 bookshelf w/adjustable locking bookends base channel with thumbscrew lock
    53 5871104 Feb. 16, 1999 adjustable support apparatus channel and spring hinge
    54 6352162 Mar. 5, 2002 interlocking bookends base interlock
    current patents obtained from Denver Library
    current patents
    no proprietary base
    Figure US20050274681A1-20051215-P00899
    Figure US20050274681A1-20051215-P00899

Claims (24)

1. An adjustable width bookend construction comprising
a pair of mirror image bookend members each having at least one vertically disposed wall provided with a slot;
a cross-member dimensioned to be slidably received in said slots in each of said bookend members; and,
means associated with each of said bookend members for vertically supporting portions of said cross-member.
2. The construction as in claim 1; wherein, said bookend members each have a generally L-shaped configuration.
3. The construction as in claim 2; wherein, said bookend members each have a vertically oriented rear wall and a vertically oriented side wall.
4. The construction as in claim 3; wherein, said side walls are each provided with a slot.
5. The construction as in claim 4; wherein, said rear walls are each provided with an inwardly projecting support member.
6. The construction as in claim 5; wherein, said inwardly projecting support members support a spanner unit, wherein, said spanner unit comprises said cross-member and an optional pair of end cap members affixed on each of the opposite ends of said cross-member.
7. The construction as in claim 6; wherein, means for linearly clutching said cross-member comprises each of said vertically oriented rear walls laterally offset from each of said slots in said bookend members, wherein, the aft face of a portion of said cross-member contacts the inside forward edge of said vertically oriented rear wall, and the forward face of another portion of said cross-member contacts the forward edge of said slot.
8. The construction as in claim 7; wherein, means for linearly clutching said cross-member comprises each of said inwardly projecting support members laterally offset from each of said slots in said bookend members, wherein, the lower edge of a portion of said cross-member contacts said support member, and the upper edge of another portion of said cross-member contacts the upper edge of said slot.
9. The construction as in claim 8; wherein, means for freely assembling each of said bookend members to said cross-member comprise said inwardly projecting support member laterally offset from said vertically oriented side wall by a clearance slightly greater than the vertical dimension of said cross-member, and said slot is open.
10. The construction as in claim 6; wherein, optional means associated with said spanner unit for limiting travel of said bookend members along said cross-member comprise said end cap members.
11. The construction as in claim 10, wherein, each of said end cap members comprises an end plate, an optional support leg, and an optional capture arm.
12. The construction as in claim 11; wherein, each of said end plates includes a centerward facing vertical groove dimensioned to slidably receive said support leg, said capture arm, and one end of said cross-member.
13. The construction as in claim 12; wherein, said capture arm is positioned to rest affixed on said cross-member, said cross-member is positioned to rest affixed on said support leg, said support leg is positioned to rest freely on an elevated level surface, and said end plate rests freely on said elevated level surface.
14. The construction as in claim 13, wherein, the forward and aftward projections of said end plate, and the upward projection of said capture arm, each provide said means as limit stops at each of the opposite ends of said cross-member for each of said bookend members.
15. The construction as in claim 1; wherein, a spanner unit comprises said cross-member and an optional pair of end cap members affixed on each of the opposite ends of said cross-member.
16. The construction as in claim 15; wherein, optional means associated with said spanner unit for preventing lateral displacement of said bookend construction relative to and resting upon an elevated level surface comprise said pair of end cap members.
17. The construction as in claim 16, wherein, each of said end cap members comprises an end plate and an optional support leg.
18. The construction as in claim 17; wherein, each of said end plates includes a centerward facing vertical groove dimensioned to slidably receive one end of said cross-member and said support leg.
19. The construction as in claim 18; wherein, said cross-member is positioned to rest affixed on said support leg, and said support leg is positioned to rest freely on said elevated level surface.
20. The construction as in claim 19; wherein, said cross-member has a predetermined length whereby the centerward face of each of said end plates clears the edges of said elevated level surface, wherein, the lower edge of each of said end plates is elevated below said elevated level surface.
21. The construction as in claim 1; wherein, optional means for preventing aftward displacement of said bookend construction relative to a collection of books comprise at least one holding block assembly.
22. The construction as in claim 21; wherein, said holding block assembly comprises a thin base mat and a rear block, wherein, means for attaching said base mat to said rear block comprise an attaching element.
23. The construction as in claim 22; wherein, said base mats lie flat on a level surface, and said rear blocks abut aft faces of said bookend construction, wherein, means associated with said base mats to firmly position said holding block assemblies on said level surface utilize part of said collection of books as weights when said base mats are positioned between said bookend members, or utilize any weighted objects when said pair of bookend members are positioned between said base mats.
24. The construction as in claim 23; wherein, said attaching element comprises a rectangular plate, wherein, the aft edge of said base mat is tightly sandwiched between said rectangular plate and said rear block.
US10/845,576 2004-05-13 2004-05-13 Adjustable width bookend construction Abandoned US20050274681A1 (en)

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CN108618479A (en) * 2018-04-08 2018-10-09 肖正彦 A kind of flexible book end of classifying has children's bookcase of anti-down function
CN109864463A (en) * 2019-04-10 2019-06-11 东北林业大学 Telescopic type bookshelf
US11262018B2 (en) * 2018-04-25 2022-03-01 Anil Gupta Storage rack
US20220240669A1 (en) * 2021-02-02 2022-08-04 Oechsle Display Systeme Gmbh Merchandise display
US20230000248A1 (en) * 2019-12-20 2023-01-05 Alain Chennaux Modular and scaleable furniture
CN118924039A (en) * 2024-09-20 2024-11-12 江西远大保险设备实业集团有限公司 A lifting bookshelf with adjustable storage space and adjustment method thereof

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CN111084501B (en) * 2020-01-16 2021-07-27 商丘师范学院 A bookshelf convenient for library use
CN115211673A (en) * 2021-04-20 2022-10-21 徐淑清 Library management equipment for university
CN114135555A (en) * 2021-12-28 2022-03-04 宁波邦达实业有限公司 Interlocking device with shockproof function for compact shelf bodies

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Publication number Priority date Publication date Assignee Title
US593120A (en) * 1897-11-02 Book-rest
US1674359A (en) * 1927-03-17 1928-06-19 Frey Henry Filing device
US2334912A (en) * 1942-10-09 1943-11-23 Guy R Eide Collapsible book rack and divider therefor

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108618479A (en) * 2018-04-08 2018-10-09 肖正彦 A kind of flexible book end of classifying has children's bookcase of anti-down function
US11262018B2 (en) * 2018-04-25 2022-03-01 Anil Gupta Storage rack
CN109864463A (en) * 2019-04-10 2019-06-11 东北林业大学 Telescopic type bookshelf
US20230000248A1 (en) * 2019-12-20 2023-01-05 Alain Chennaux Modular and scaleable furniture
US12108875B2 (en) * 2019-12-20 2024-10-08 Alain Chennaux Modular and scaleable furniture
US20220240669A1 (en) * 2021-02-02 2022-08-04 Oechsle Display Systeme Gmbh Merchandise display
US11540628B2 (en) * 2021-02-02 2023-01-03 Oechsle Display Systeme Gmbh Merchandise display
CN118924039A (en) * 2024-09-20 2024-11-12 江西远大保险设备实业集团有限公司 A lifting bookshelf with adjustable storage space and adjustment method thereof

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WO2005112695A3 (en) 2007-05-10

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