US20080079338A1 - Rolling support mechanism for pivoting bookcase or the like - Google Patents
Rolling support mechanism for pivoting bookcase or the like Download PDFInfo
- Publication number
- US20080079338A1 US20080079338A1 US11/648,495 US64849506A US2008079338A1 US 20080079338 A1 US20080079338 A1 US 20080079338A1 US 64849506 A US64849506 A US 64849506A US 2008079338 A1 US2008079338 A1 US 2008079338A1
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- United States
- Prior art keywords
- wall section
- bookcase
- wheel
- vertical lateral
- floor
- 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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Images
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
- A47B53/00—Cabinets or racks having several sections one behind the other
- A47B53/02—Cabinet systems, e.g. consisting of cabinets arranged in a row with means to open or close passages between adjacent cabinets
Abstract
A folding bookcase or other furniture or wall unit having a rolling mechanism guided along a floor track, the rolling mechanism supporting a substantial portion of the weight of the unit. One preferred construction includes a first wall section having first and second vertical lateral edges, the first vertical lateral edge being pivotally connected to a support, a second wall section having first and second vertical lateral edges, the first vertical lateral edge being pivotally connected to the second vertical lateral edge of the first wall section along a vertical axis therebetween; a floor track or guide; and a pivoting roller mechanism rotatable mounted at a bottom edge of the second wall section proximate the first vertical lateral edge of the second wall section for supporting a load the second wall section on the floor guide, wherein the pivoting roller mechanism includes one or more rollers, roller rotating about a horizontal axis and engaging the floor guide, wherein the rollers are constructed and arranged to have an effective rotational axis in line with the load applied from the second wall section. The preferred configuration for the roller is a V-groove wheel that mates with a V-shaped ridge of the floor track.
Description
- This application claims priority to
provisional application 60/758,577 filed Jan. 11, 2006, hereby incorporated by reference. - The field of the present invention is directed to folding furniture or wall section such as pivoting bookcases or other types of furniture and rolling support mechanisms for supporting the bookcase that allow for pivoting operation.
- Heretofore, there have been various attempts to construct a bookcase which in a first position is disposed flat against a wall, or across a doorway, and then in a second position, the bookcase folds, pivoting outwardly in the middle and sliding to one side of the opening, extending perpendicularly out from the wall.
- Unlike closet doors, which employ essentially a sliding mechanism supported from the ceiling, the bulk and weight of heavy units such as a bookcase, particularly one loaded with objects, is too heavy to be supported solely from a top suspension mechanism. Thus the system includes a lower runner along which the lower section of the bookcase may slide. Various mechanisms have been proposed for providing this sliding support, but the present inventor has determined desirability for an improved support system that can handle the high loads of the bookcase.
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FIG. 1 is a front perspective view of a pivoting bookcase in an extended position against a wall. -
FIG. 2 is a front perspective view of the bookcase ofFIG. 1 in the folded position. -
FIG. 3 is a front elevation view of the bookcase ofFIG. 1 in a left folding configuration. -
FIG. 4 is a side elevation view of the bookcase system ofFIGS. 1-3 . -
FIG. 5 is a partial right bottom perspective view of the bookcase ofFIG. 1 . -
FIG. 6 is a detailed view of the roller section of the bookcase ofFIG. 3 . -
FIG. 7 is a perspective view of the wheel assembly ofFIG. 6 . -
FIG. 8 is a perspective view of the wheel assembly ofFIGS. 6-7 removed from the bookcase section. -
FIG. 9 is a perspective view of a cross-section ofFIG. 8 . -
FIG. 10 is a plan view of the cross-section ofFIG. 9 . -
FIG. 11 is a cross-sectional view ofFIG. 10 taken along line 11-11. -
FIG. 12 is a detail of the spring assembly of the slider component ofFIGS. 8-11 . -
FIG. 13 is a top plan view of the spring assembly ofFIG. 12 . -
FIG. 14 is a detail of the pivot section ofFIG. 3 . -
FIG. 15 is a bottom left perspective view of the pivot piece ofFIG. 14 . -
FIG. 16 is a right top perspective view of the pivot section as inFIGS. 14-15 as removed from the bookcase section. -
FIG. 17 is a cross-sectional view of the pivot and slide mechanism ofFIG. 16 . -
FIG. 18 is a cross-section ofFIG. 17 taken along line 18-18. -
FIG. 19 is a top perspective view of the slider element ofFIGS. 16-18 . -
FIG. 20 is a cross-section ofFIG. 19 taken along line 20-20. -
FIG. 21 is a detailed cross-section of the track element ofFIGS. 7-8 . -
FIG. 22A is a perspective view of a pivot block of alternate construction. -
FIG. 22B is a perspective view of the pivot block ofFIG. 22A showing internal details. -
FIG. 23 is a perspective view of a first alternative pivoting caster system. -
FIG. 24 is a perspective view of a second alternative pivoting caster mechanism. -
FIG. 25A is a side elevation view of the mechanism ofFIG. 24 showing internal details. -
FIG. 25B is a cross-sectional view ofFIG. 24 taken alongline 25B-25B. -
FIGS. 26 and 27 illustrate a third alternative rolling caster of a single wheel construction. -
FIGS. 28-29 illustrate a fourth alternative pivoting roller mechanism of a two-wheel design. -
FIGS. 30-31 illustrate a fifth alternative embodiment of a rolling pivot mechanism with an alternate wheel design. -
FIGS. 32-33 illustrate a sixth alternative pivoting roller support mechanism of a two-wheel design wherein the wheels ride within a floor slot. -
FIGS. 34-35 illustrate a seventh alternative mechanism of another two-wheel design with slider posts engaged within a slide channel. -
FIGS. 36-37 illustrate an eighth alternative design using a single wheel in line with slider posts all engaged within a floor guide channel. -
FIG. 38 is a detail of the upper left pivot mechanism of the bookcase system ofFIG. 3 . -
FIG. 39 is a detail of the upper right pivot and slide mechanism of the upper right portion of the bookcase mechanism ofFIG. 3 . -
FIG. 40 is a perspective view of an upper portion of the bookcase system ofFIG. 3 illustrating details of the upper support system. -
FIG. 41 is a top left perspective view on an enlarged scale of the top left section of the upper support system ofFIG. 40 . -
FIG. 42 is an exploded perspective view of the upper support system ofFIG. 41 . -
FIG. 43 is a top right perspective view of the upper right section of the support system ofFIG. 40 on an enlarged scale. - Additional aspects and advantages will be apparent from the following detailed description of preferred embodiments, which proceeds with reference to the accompanying drawings.
- Preferred embodiments will now be described with reference to the drawings. To facilitate description, any element numeral representing an element in one figure will represent the same element in any figure. The preferred embodiments will describe a particular folding furniture or wall section unit in the form of a folding bookcase, but it will be appreciated that details of the bookcase may be applied in other forms of furniture, wall sections or the like.
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FIGS. 1 and 2 illustrate atypical bookcase 10 that may incorporate the rolling support mechanism according to a preferred embodiment.FIG. 1 illustrates thebookcase 10 disposed in an extended position against thewall 5. The left andright sections FIG. 2 ) that allows the interconnected central portions of the left andright sections wall 5, both sections then sliding to the right side of theopening 7 within thewall 5. The bottom of thebookcase 10 includes a bottom support mechanism, described below, that engages afloor guide 20 and an upper crown section. -
FIGS. 3-21 illustrate a preferred configuration for a pivotingbookcase 10 and bottom support system for such a pivoting bookcase or other pivoting or sliding structure. It will be appreciated that the bottom support system will be applicable to any pivoting or sliding mechanism besides bookcases such as a cabinet, sliding door or swinging door, fire door, room divider, fold-out desk, cupboard, china hutch, or the like. - The
bookcase 10 as illustrated inFIG. 3 is of the same construction as illustrated inFIGS. 1-2 only in the reverse configuration with thesections roller mechanism 60, details of which are described below with respect toFIG. 6 et seq., is illustrated in the right side of the figure at the outer lower corner of thefar side section 14 of thebookcase 10. On the lower left side ofFIG. 3 is illustrated thepivot mechanism 80, described in detail below with reference toFIG. 14 et seq., thepivot mechanism 80 being located at the lower left edge of thebookcase 10 at the corner of the pivotingsection 12. Thefloor track 20 is as previously described and will be described in further detail below. It will be appreciated that the left and right bookcase sections are interchangeable, namely that the bookcase may be folded and slide to the right as illustrated inFIGS. 1-2 or the respective hardware, namelywheel assembly 60 andpivot assembly 80 may be interchanged such that the bookcase may fold and slide to the left which is the orientation illustrated inFIG. 3 . - The
upper wall section 30 includes arear angle plate 32 having a plurality of horizontal slots for facilitating easy mounting to a wall. The details of the left and right upper slider sections are described in further detail below with respect toFIGS. 38-42 below. - As shown in the bottom perspective view of
FIG. 5 , thebookcase 10 includes left andright sections pivot mechanism 80 underneath the corner of the pivotingbookcase section 12 and the wheeled slider/roller mechanism under the lower corner of the slidingbookcase section 14. Both thepivot mechanism 80 and theroller mechanism 60 engage the upper angled ridge of theslider track 20. - Details of the rolling
support mechanism 60 will now be described with reference toFIGS. 6-13 . Theroller mechanism 60 includes the housing orenclosure 62 that is pivotably mounted to a frame support member 40 (shown inFIG. 8 ) via apost 64 secured to theframe member 40 vianut 66. Theframe member 40 is preferably made of metal such as steel and is sized to fit within a cavity underneath the outer corner of thebookcase section 14. Thissupport frame member 40 has a side lip or flange which extends beneath the side wall of thebookcase section 14 to provide for firm support and connection thereto. Though the frame support may be omitted and the wheel mechanism mounted directly bookcase, but the frame support may offer certain advantages such as better distributing the load and transferring the load up the side of the bookcase. - The rolling
support mechanism 60 includes acaster wheel 70 pivotally or rotatably mounted to thehousing 62 via shaft or post 68 secured to the housing via acotter pin 69. Therotational axis 70 a of thewheel 70 is centered below the connection point to theframe member 40, i.e., in line with thepivot axis 61 of the rolling support mechanism (see,FIGS. 10-11 ), such that the weight from the bookcase is transferred directly and in line onto thewheel shaft 68. As shown inFIG. 6 , thepivot axis 61 of the roller mechanism is in line (intersects perpendicularly) In a preferred configuration, thewheel 70 is a V-groove type wheel whereby the V-groove 71 has an internal angle Θ as best illustrated inFIGS. 9 and 11 . The V-groove 71 is preferably about 90 degrees and mates with the V-shapedridge 22 of thefloor track 20. This mating connection between the V-groove 71 in thewheel 70 with the V-ridge 22 in thefloor track 20 provides for secure directional sliding/rolling stability for the rollingmechanism 60 along thetrack 20. - As one would understand from maneuvering a shopping cart about a grocery store, a pivoting wheel has a tendency to remain upon a given line of travel. Such a tendency may tend to urge the
wheel 70 to “jump the track” and disengage from the V-ridge 22 of thetrack 20. In order to maintain alignment of thewheel 70 along thetrack 20, the rollingmechanism 60 also includes a guide track mechanism. Thehousing 62 extends forwardly away from thewheel 70 and includes aslide block 72 which is urged downward by aspring mechanism 75 onto the V-ridge 22 of thetrack 20. Theslide block 72 also includes a V-groove 73 (having an internal angle Θ similar to the wheel 70) which engages the V-ridge 22 of thetrack 20. Theslide block 72 is retained within thechannel 79 formed within a forward section of thewheel housing 62. The V-groove 73 in theslide block 72 engages the V-ridge 22 in thefloor track 20 and serves to guide the rollingassembly 60 along thetrack 20. Since theslide block 72 is cantilevered forward of the wheel 70 (thewheel 70 being positioned along the pivot axis of the post 64), the sliding V-block maintains the direction of travel of the rollingmechanism 60 in alignment with the V-ridge 22 of thetrack 20. - The
slide block 72 is preferably made of ultra high molecular weight plastic (UHMW) and may alternately be made of nylon, Teflon, bearing bronze (which is a bronze material impregnated with oil, for example SAE 660 or 640), or a coated material such as Teflon coated metal or plastic. Thewheel 70 is preferably a mild steel or low carbon steel having an integral ball bearing construction but may be made from other suitable materials such as iron, stainless steel, plastics, or polyurethane depending upon the load requirements. Such V-groove wheels are available through the McMaster-Carr catalog. Various manufacturers can make a suitable wheel for a given application. Specific wheel design/selection will depend upon several factors such as load, cost, size and operating conditions (e.g. corrosive areas). A preferred wheel for thebookcase system 10 illustrated is slightly smaller diameter than a standard size wheel and would be available from suitable manufacturers such as Killian Casters and Wheels. - As best illustrated in
FIGS. 9-13 , theslide block 72 is urged by aspring mechanism 75 downward into contact with the V-ridge 22 oftrack 20. The spring mechanism may be any suitable mechanism and this embodiment includes acoil spring 76 to which are attached upper andlower plates upper plate 78 is attached to the upper section of thewheel housing 62 via bolt holes 78 a, 78 b. Thelower plate 77 is in turn attached to or otherwise in contact with theslide block 72. - The
slide block 72 translates vertically, being retained within thechannel 79 in the forward section of thehousing 62. Other suitable configurations may be employed for retaining the slide block such as internal pins or posts (e.g. one post on either side of the spring 76), or even a single pin disposed within thespring 76. - The wheeled end of the
bookcase 10 is provided with thewheel mechanism 60 as it is that end that must traverse much of the length of thetrack 20 during folding and unfolding operation. The other end of the case is relatively fixed during the folding and unfolding operations and need only pivot. Preferably apivot block configuration 80 is employed at the pivot end, and details of a preferred pivotblock assembly system 80 are disclosed inFIGS. 14-20 .Pivot block assembly 80 includes ablock 82 into which apost structure 84 is inserted as is described below. Thepost structure 84 is mounted to framemember 90.Frame member 90 is of the same configuration and thus is interchangeable with theframe member 40 on the other side of the bookcase. - The
block 82 includes a V-groove 83 having an internal angle A (typically about 90° which corresponds to the angle φ of the V-ridge 22 in thefloor track 20. Thefloor track 20 is preferably secured to the floor via suitable connection mechanism such as by screws or bolts connected into the floor along the length of the track. Theblock 82 is secured in a fixed position via four screws or bolts (not shown) passing through theholes block 82 and then throughholes post 84 carries and transfers a substantial portion of the weight of the bookcase onto the block and thereby to the floor. Materials of thepost 84 and block 82 are selected to permit rotation therebetween to allow the desired pivoting of the left side of the bookcase. - In order to facilitate moving of the unit and aligning the
post 84 intocentral opening 88 in theblock 82 on the floor track, thepost 84 includes anextension member 85 which slides along curved or angled guide surfaces 86 in the top of the block, thereby guiding theextension portion 85 radially inward and thus providing self-seating for thepost 84 into a proper seating position within theblock 82. When in position, theextension 85 nests within thecentral opening 88 within theblock 82. -
FIG. 21 illustrates an enlarged detail of thefloor track 20. Thefloor track 20 includes the upwardly extending V-ridge 22 which is shown to have an angle φ. Each of the engaging angles, namely angle θ for the V-groove of thewheel 70, angle θ for the V-groove in theslide block 72, angle λ in the V-groove in thepivot block 82, and the angle φ in the V-ridge of thefloor track 20, are about 90° but other angles may be desirable. For example, the steepness of the angle (i.e., less than 90°) may provide for more alignment force for the elements but potentially could be more of an impediment to user's crossing over the floor track either on foot or such as in a wheel chair. Other possible configurations may be used for the rolling/wheel pivoting mechanism. Preferably, the primary load from the bookcase or other object being supported is aligned with the rolling axis of the wheel or other rolling/sliding support. - Despite the heavy load anticipated by a typical bookcase configuration, the roller mechanism including the V-
groove wheel 70 and cantilevered V-groove slide block 72 allow use of a V-ridge floor track with a relatively low raised/vertical dimension on the order of 0.5 inches. Such a low threshold may advantageously minimize tripping hazard. - The
block 82 of the previous embodiment has a generally square or box-shaped configuration. When pivoting about theblock 82, theframe member 90 must have sufficient clearance so as not to contact theblock 82. As shown inFIGS. 17-18 , theblock 82 is entirely below theframe member 90. Alternately, theblock 82 may nest within theframe member 90 Figs, but would need to be sufficiently spaced from theside walls FIGS. 22A-22B illustrate an alternate configuration for theblock 82, thealternate block 282 having a more round or cylindrical shape. This round shape is preferred because it enables a closer fit of theblock 282 when it is nested within the frame member 90 (i.e. closer to theside walls block 282 is otherwise of similar configuration with a bottom V-groove 283 that engages tofloor track guide 22. Theblock 282 includes anangled guide surface 286 for guiding theextension portion 85 radially inward toward thecentral opening 288 and thus providing self-seating for thepost 84 into a proper seating position within thepivot block 282. Theblock 282 is secured in a fixed position via two screws or bolts (not shown) passing through theholes block 282 and then through holes in the floor track 21. -
FIG. 23 illustrates a firstalternative embodiment 110 including a V-groove wheel 112 with a forwardly extendingslide block 114. Thewheel 112 is mounted to be disposed in line with the load point of the bookcase and thus in line with thepivot axis 61 of thewheel 112. Theslide block 114 is supported by acurved leaf spring 116. -
FIGS. 24 , 25A, 25B illustrate a secondalternative embodiment 120 also including a V-groove wheel 122 disposed with its rolling axis in line with the load point of the bookcase. Aslide block mechanism 124 supported by anangled leaf spring 126 extending forwardly in front of thewheel 122. -
FIGS. 26-27 illustrate a thirdalternative embodiment 130 comprised of a single V-groove wheel 132 having its rolling axis in line with the load point.FIG. 26 also illustrates an alternative floor track (usable in various other embodiments) where the V-ridge 134 is disposed within aslot 136 within thetrack system 135. If practical, theentire floor track 135 of this embodiment or other embodiments may be recessed into the floor to provide a more smooth contour relative to the floor surface. The single wheel design ofembodiment 130 does not include a guide mechanism but may nonetheless be suitable for certain applications. -
FIGS. 28-29 illustrate a fourthalternative embodiment 140 comprised of a dual V-groove wheel configuration. Theassembly 140 includes first and second V-groove wheels ridge track 148. By locating the rolling axis of each of thewheels wheels -
FIGS. 30-31 illustrate a fifthalternative embodiment 150 similar to the previous embodiment. Thewheel assembly 150 includes first andsecond wheels square ridge 156 either on the surface of the floor or as illustrated disposed within atrack groove 158. As in the previous embodiment, the effective rolling axis of thewheels -
FIGS. 32-33 illustrate a sixthalternative embodiment 160 comprised of a pair of inline wheels wheels groove 166 in atrack 168 or within the floor itself. Similar to the previous multiple wheel embodiments, the effective rolling axis of thewheels wheel assembly 160. -
FIGS. 34-35 illustrate a seventhalternative embodiment 170 comprised of a pair offlat roller wheels common shaft 175. The rolling axis of each of the wheels is in line with the load being applied to thewheel assembly 170. Forward and behind the wheel pair and in line with thegroove track 176 are a pair ofguideposts groove track 176 for keeping the wheel assembly aligned with the track. -
FIGS. 36-37 illustrate an eighthalternative embodiment 180 having acentral wheel 182 which rides within thetrack groove 186. The rolling axis of thewheel 182 is in line with the load applied to thewheel assembly 180. One ormore guide posts 187, 188, arranged in line with and on one or both sides of thewheel 182, are also disposed within thetrack groove 186. -
FIGS. 38-43 illustrate various details of theupper support system 30 of the pivoting bookcase system ofFIGS. 1-4 . Therear angle bracket 32 includesslots 33 for facilitating fastening to a wall. Threeextenders angle bracket 32 and extend outward for supporting thetransverse bar 37. Theend mechanisms FIG. 43 ) within thetransverse bar 37. When pivoting to the left, thepost 39 slides within thechannel 31 as theright section 14 slides to the left and thepost 38 holding leftsection 12 is permitted to rotate as thesection 12 pivots thereabout.FIG. 42 illustrates a preferred assembly and operation method of theend mechanisms hole 34 b inextender 34. To access thehole 34 b, theflexure element 34 a is flexed away from thehole 34 b because it its at rest position, theflexure 34 a covers thehole 34 b. When inserted, thepin 38 a passes through a hole in thebar 37 and then through abushing 38 c (thebushing 38 c is disposed within theU-shaped channel 31 of the bar 37) and then intoretainer 38 within theleft section 12. The head of thepin 38 a is larger than thehole 34 b so it does not pass therethrough. When theflexure 34 a is released, it return over the head of thepin 38 and act to retain the pin in place. Alternately, thepin 38 a may be held in place by acotter pin 38 a. Thebushing 38 c rides within thechannel 31. The end mechanism 339 on the right side is of similar construction. - Though the present invention has been set forth in the form of its preferred embodiments, it is nevertheless intended that modifications to the disclosed systems and methods may be made without departing from inventive concepts set forth herein.
Claims (10)
1. A folding furniture or wall section unit, comprising
a first wall section having first and second vertical lateral edges, the first vertical lateral edge being pivotally connected to a support;
a second wall section having first and second vertical lateral edges, the first vertical lateral edge being pivotally connected to the second vertical lateral edge of the first wall section along a vertical axis therebetween;
a floor guide;
a pivoting roller mechanism rotatable mounted at a bottom edge of the second wall section proximate the second vertical lateral edge of the second wall section for supporting a load the second wall section on the floor guide,
wherein the pivoting roller mechanism includes one or more wheels, each wheel rotating about a horizontal axis and engaging the floor guide, wherein the wheels are constructed and arranged to have an effective rotational axis in line with the load applied from the second wall section.
2. A folding furniture or wall section unit according to claim 1 wherein the first and second wall sections comprise first and second bookcase sections.
3. A folding furniture or wall section unit according to claim 2 wherein the pivoting roller mechanism comprises a single wheel having an axis of rotation in line with the load applied from the bookcase.
4. A folding furniture or wall section unit according to claim 1 wherein the floor track comprises an upwardly extending V-shaped ridge, wherein pivoting roller mechanism comprises a V-groove type wheel that engages the V-shaped ridge of the floor track.
5. A folding furniture or wall section unit according to claim 1 wherein the pivoting roller mechanism comprises a V-groove wheel having a rotational axis in line and perpendicular with the rotational axis of the roller mechanism.
6. A folding furniture or wall section unit according to claim 5 wherein the floor track comprises an upwardly extending V-shaped ridge, wherein pivoting roller mechanism comprises a V-groove type wheel that engages the V-shaped ridge of the floor track.
7. A folding furniture or wall section unit according to claim 5 wherein the roller mechanism further includes a guide mechanism connected to and cantilevered out from the wheel, the guide mechanism engaging the floor track and steering the wheel for keeping the wheel on the floor track.
8. A folding furniture or wall section unit according to claim 7 wherein the guide mechanism comprises sliding block having a V-groove that engages the V-shaped ridge in the floor track.
9. A folding furniture or wall section unit according to claim 8 wherein the sliding block is spring-loaded for maintaining engagement with the floor track.
10. A folding bookcase comprising
a first bookcase section having first and second vertical lateral edges, the first vertical lateral edge being pivotally connected to a support;
a second bookcase section having first and second vertical lateral edges, the first vertical lateral edge being pivotally connected to the second vertical lateral edge of the first bookcase section along a vertical axis therebetween;
a floor track having an upwardly protruding V-shaped ridge;
a pivoting roller-mechanism rotatable mounted at a bottom portion of the second bookcase section proximate the second vertical lateral edge of the second bookcase section for supporting a load the second bookcase section on the floor track,
wherein the pivoting roller mechanism includes a V-groove wheel, wherein the V-groove wheel is constructed and arranged to engage the V-shaped ridge of the floor track.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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US11/648,495 US20080079338A1 (en) | 2006-01-11 | 2006-12-29 | Rolling support mechanism for pivoting bookcase or the like |
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US75857706P | 2006-01-11 | 2006-01-11 | |
US11/648,495 US20080079338A1 (en) | 2006-01-11 | 2006-12-29 | Rolling support mechanism for pivoting bookcase or the like |
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US20080079338A1 true US20080079338A1 (en) | 2008-04-03 |
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US11/648,495 Abandoned US20080079338A1 (en) | 2006-01-11 | 2006-12-29 | Rolling support mechanism for pivoting bookcase or the like |
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Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US9310170B1 (en) | 2013-03-14 | 2016-04-12 | Alan Basewitz | Moveable furniture piece with armored panel |
US10143299B1 (en) * | 2017-05-22 | 2018-12-04 | Daniel F. Hafner | Closet add-on armoire conversion system |
CN112568633A (en) * | 2020-12-31 | 2021-03-30 | 成志强 | Furniture cabinet capable of moving in all directions |
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Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US9310170B1 (en) | 2013-03-14 | 2016-04-12 | Alan Basewitz | Moveable furniture piece with armored panel |
US10143299B1 (en) * | 2017-05-22 | 2018-12-04 | Daniel F. Hafner | Closet add-on armoire conversion system |
CN112568633A (en) * | 2020-12-31 | 2021-03-30 | 成志强 | Furniture cabinet capable of moving in all directions |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
AS | Assignment |
Owner name: WOODFOLD MFG., INC., OREGON Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:VAN DYKE, DAVE;REEL/FRAME:019856/0495 Effective date: 20070910 |
|
STCB | Information on status: application discontinuation |
Free format text: ABANDONED -- FAILURE TO RESPOND TO AN OFFICE ACTION |