US2555197A - Flush head screw or the like - Google Patents

Flush head screw or the like Download PDF

Info

Publication number
US2555197A
US2555197A US743045A US74304547A US2555197A US 2555197 A US2555197 A US 2555197A US 743045 A US743045 A US 743045A US 74304547 A US74304547 A US 74304547A US 2555197 A US2555197 A US 2555197A
Authority
US
United States
Prior art keywords
screw
head
recess
housing
head screw
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.)
Expired - Lifetime
Application number
US743045A
Inventor
Lasky Michael
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Priority to US743045A priority Critical patent/US2555197A/en
Application granted granted Critical
Publication of US2555197A publication Critical patent/US2555197A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
    • F16B37/00—Nuts or like thread-engaging members
    • F16B37/14—Cap nuts; Nut caps or bolt caps
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
    • F16B23/00—Specially shaped nuts or heads of bolts or screws for rotations by a tool
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S411/00—Expanded, threaded, driven, headed, tool-deformed, or locked-threaded fastener
    • Y10S411/91—Antitamper means
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S411/00—Expanded, threaded, driven, headed, tool-deformed, or locked-threaded fastener
    • Y10S411/919—Screw having driving contacts
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T74/00—Machine element or mechanism
    • Y10T74/20—Control lever and linkage systems
    • Y10T74/20576—Elements
    • Y10T74/20732—Handles
    • Y10T74/20762—Shaft connections

Definitions

  • This invention relates to a, screw, or thelike, although its use is not restricted to any particular type of screw, bolt or the like.
  • the general purpose of the invention is to enable the following objects to be accomplished in a particularly eflicient manner and by means of a construction which is simple and economical of production.
  • One object of the invention is the provision of a device of the character referred to wherein a centrally located member within the screw head is contoured in conjunction with the surrounding surface of the screw, simulating the appearance of a smooth surfaced screw, thereby eliminating any conspicuous depressions, slots or grooves, or the like.
  • Another object of the invention is the provision of a device of the character referred to wherein a centrally located member within the screw head and contoured to the surrounding surface of said screw head, is co-ordinated with flexible means within a sided depression of said screw head, to respond to an exerted force applied upon said centrally located member to receive a wrench, or the like, to permit proper manipulation in positioning said screw.
  • Another object of the invention is the provision of a device of the character referred to wherein the centrally located member is self-contained and firmly embedded within a depression provided at one extremity of the screw, thereby eliminating the utilization of separate plugs or fillers, in an effort to conceal a depression, slot or groove, as ordinarily is the case when the present type of screws are utilized, and the depressions are concealed.
  • Another object of the invention is the provision of a device of the character referred to wherein the centrally located member combines enhancing the appearance of the screw, with the incorporated feature of immediate removal, said removal executed by compressing the centrally located member within the screw head, utilizing a wrench or the like, and rotatably operating said wrench in conjunction with the type of threads that are provided on said screw.
  • Fig. 1 represents a side elevation of a typical screw
  • Fig. 2 is a sectional view taken along the line 2--2 in Fig. 1
  • Fig. 3 is a sectional view similar to Fig. 2 with the exception of the depressed centrally located member illustrating the position of the extensible plug in the process of manipulation.
  • Fig. 4 indicates the plan view as shown along the line 4-4 of Fig. 1.
  • Fig. 5 is a variation of the 2 i plan view.
  • Fig. 6 is a variation of a screw head.
  • Fig. 7 is a variation of a screw head.
  • Fig. .8 illustrates a form of nut in which the invention maybe used.
  • Number I is the stem of a bolt or the like, having a head 2. Within the head 2 is a noncircular recess 3 into which is permanently located the housing 4. Said housing 4 is flanged at 5 and extends over and beyond the flange 1 of the closure cap 8 thus permitting the closure cap 8 to have a slidable fit between the said flange 5 and the circumferential stem section H) of the closure cap 8.
  • the convex portion 6 provides the spring H with a locating point and prevents the spring H from dislocation when said spring II is under stresses of compression and extension.
  • the upper end of the spring ll rests within the bore 9 of the stem Ill.
  • the cap 8 has a non-circular flanged head l2 communicating with the recess 3 in a slidable fit and the external surface of said head is contoured to conform to the surrounding surface of the screw head 2.
  • the external dimensions of the housing 4 are slightly larger than the dimensions of recess 3 so that the closure assembly is retained in the recess by a press-fit between housing 4 and recess 3.
  • Fig. 3 the screw is shown in the process of positioning. Pressure is applied to the wrench l4 against the depressible plug 8 thus compressing the spring I l and permitting suflicient grip within the sided recess 3 to rotate the screw l by rotation of the wrench l4.
  • hexagon plug is a variation.
  • Fig. 6 a button head screw l5; the location and the contour of the plug [6 is indicated.
  • Fig. 7 a flat head screw H; the location and the contour of the plug [8 is indicated.
  • a nut I9 In Fig. 8 is shown a nut I9; the location of the plug 20 is indicated. The nut is threaded at 2

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Details Of Spanners, Wrenches, And Screw Drivers And Accessories (AREA)

Description

May 29, 1951 M. LASKY FLUSH HEAD SCREW, OR THE LIKE Filed April 22, 1947 BNVENTOR Patented May 29, 191
UNITED STATE PATENT OFFICE FLUSH HEAD sonnw on THE LIKE" Michael Lasky, Cleveland, Ohio Application April 22, 1947, Serial No. 743,045
1 Claim. 1
This invention relates to a, screw, or thelike, although its use is not restricted to any particular type of screw, bolt or the like. The general purpose of the invention is to enable the following objects to be accomplished in a particularly eflicient manner and by means of a construction which is simple and economical of production.
One object of the invention is the provision of a device of the character referred to wherein a centrally located member within the screw head is contoured in conjunction with the surrounding surface of the screw, simulating the appearance of a smooth surfaced screw, thereby eliminating any conspicuous depressions, slots or grooves, or the like.
Another object of the invention is the provision of a device of the character referred to wherein a centrally located member within the screw head and contoured to the surrounding surface of said screw head, is co-ordinated with flexible means within a sided depression of said screw head, to respond to an exerted force applied upon said centrally located member to receive a wrench, or the like, to permit proper manipulation in positioning said screw.
Another object of the invention is the provision of a device of the character referred to wherein the centrally located member is self-contained and firmly embedded within a depression provided at one extremity of the screw, thereby eliminating the utilization of separate plugs or fillers, in an effort to conceal a depression, slot or groove, as ordinarily is the case when the present type of screws are utilized, and the depressions are concealed.
Another object of the invention is the provision of a device of the character referred to wherein the centrally located member combines enhancing the appearance of the screw, with the incorporated feature of immediate removal, said removal executed by compressing the centrally located member within the screw head, utilizing a wrench or the like, and rotatably operating said wrench in conjunction with the type of threads that are provided on said screw.
In the accompanying drawings, Fig. 1 represents a side elevation of a typical screw, Fig. 2 is a sectional view taken along the line 2--2 in Fig. 1, Fig. 3 is a sectional view similar to Fig. 2 with the exception of the depressed centrally located member illustrating the position of the extensible plug in the process of manipulation. Fig. 4 indicates the plan view as shown along the line 4-4 of Fig. 1. Fig. 5 is a variation of the 2 i plan view. Fig. 6 is a variation of a screw head. Fig. 7 is a variation of a screw head. Fig. .8 illustrates a form of nut in which the invention maybe used.
Number I is the stem of a bolt or the like, having a head 2. Within the head 2 is a noncircular recess 3 into which is permanently located the housing 4. Said housing 4 is flanged at 5 and extends over and beyond the flange 1 of the closure cap 8 thus permitting the closure cap 8 to have a slidable fit between the said flange 5 and the circumferential stem section H) of the closure cap 8.
The convex portion 6 provides the spring H with a locating point and prevents the spring H from dislocation when said spring II is under stresses of compression and extension. The upper end of the spring ll rests within the bore 9 of the stem Ill.
, The cap 8 has a non-circular flanged head l2 communicating with the recess 3 in a slidable fit and the external surface of said head is contoured to conform to the surrounding surface of the screw head 2.
The external dimensions of the housing 4 are slightly larger than the dimensions of recess 3 so that the closure assembly is retained in the recess by a press-fit between housing 4 and recess 3.
In Fig. 3 the screw is shown in the process of positioning. Pressure is applied to the wrench l4 against the depressible plug 8 thus compressing the spring I l and permitting suflicient grip within the sided recess 3 to rotate the screw l by rotation of the wrench l4.
In Fig. 5 the hexagon plug is a variation.
In Fig. 6 is shown a button head screw l5; the location and the contour of the plug [6 is indicated.
In Fig. 7 is shown a flat head screw H; the location and the contour of the plug [8 is indicated.
In Fig. 8 is shown a nut I9; the location of the plug 20 is indicated. The nut is threaded at 2| at one end.
Although several forms of the invention have been shown and described in detail, it will be apparent to those skilled in the art that the invention is not so limited, but the various deviations may be incorporated without departing from the spirit of the invention or the scope of the appended claim.
I claim:
An improvement for a threaded fastener having a screw threaded portion and a turning portion having a non-circular turning recess formed therein, said improvement consisting of an independently assembled recess closure unit comprising a cup-like housing having the same peripheral outline as said turning recess and a laterally inwardly extending flange at the open end thereof, a closure cap having a stem, an enlarged non-circular head portion at one end of said stem and a flange extending laterally from said stem, at the other: end thereof; the stem of the closure cap being movably telescoped' with said housing with the flange on said closure cap underlying separation of said parts, a resilient; membermounted within the confines of said telescoping housing and closure cap, being under compression thereby; normally maintaining said telescoping parts in extended relationship with said flanges in interlocking engage-- ment, said housing having external dimensions slightly-larger thanvthezdimensionsiof said: recess whereby the housing may be held in said recess, by,- a' pressa-fit saidhead: portion on the closure cap having the same non-circular periphery as the flange on said housing to prevent said resilient member said recess and being slightly smaller in dimensions so as to have a close sliding fit with said recess, and the dimensions of the cap, stem, housing and recess being such that when the cap is in its normal extended position the exterior of said head will be flush with said turning portion of the fastener.
MICHAEL LASKY.
REFERENCES crrEn;
The following references are of record in the file of this patent:
UNI-TED STATES PATENTS
US743045A 1947-04-22 1947-04-22 Flush head screw or the like Expired - Lifetime US2555197A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US743045A US2555197A (en) 1947-04-22 1947-04-22 Flush head screw or the like

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US743045A US2555197A (en) 1947-04-22 1947-04-22 Flush head screw or the like

Publications (1)

Publication Number Publication Date
US2555197A true US2555197A (en) 1951-05-29

Family

ID=24987305

Family Applications (1)

Application Number Title Priority Date Filing Date
US743045A Expired - Lifetime US2555197A (en) 1947-04-22 1947-04-22 Flush head screw or the like

Country Status (1)

Country Link
US (1) US2555197A (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3015870A (en) * 1958-03-26 1962-01-09 Ely Harlev Lee Quick release cam type fastener device
US3405595A (en) * 1966-10-27 1968-10-15 Hardinge Brothers Inc Devices for closing wrench sockets
US4005623A (en) * 1974-02-01 1977-02-01 Assembly Line Products, Inc. Fastener apparatus
FR2618190A1 (en) * 1987-07-14 1989-01-20 Avibank Mfg Inc FAST ACTING FASTENER ASSEMBLY AND SMOOTH HEAD.
US5074730A (en) * 1990-11-21 1991-12-24 Avibank Mfg., Inc. Adjustable flush mounted bolt
US20220333632A1 (en) * 2021-04-16 2022-10-20 Andrew J. Klein Hidden recess furniture screw and driver system

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US327887A (en) * 1885-10-06 Eugene lucas
US543646A (en) * 1895-07-30 dixon
US2133409A (en) * 1937-09-14 1938-10-18 Mac It Parts Company Closed head socket-head screw or bolt

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US327887A (en) * 1885-10-06 Eugene lucas
US543646A (en) * 1895-07-30 dixon
US2133409A (en) * 1937-09-14 1938-10-18 Mac It Parts Company Closed head socket-head screw or bolt

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3015870A (en) * 1958-03-26 1962-01-09 Ely Harlev Lee Quick release cam type fastener device
US3405595A (en) * 1966-10-27 1968-10-15 Hardinge Brothers Inc Devices for closing wrench sockets
US4005623A (en) * 1974-02-01 1977-02-01 Assembly Line Products, Inc. Fastener apparatus
FR2618190A1 (en) * 1987-07-14 1989-01-20 Avibank Mfg Inc FAST ACTING FASTENER ASSEMBLY AND SMOOTH HEAD.
DE3822517A1 (en) * 1987-07-14 1989-01-26 Avibank Mfg FASTENING DEVICE
US4822227A (en) * 1987-07-14 1989-04-18 Avibank Mfg., Inc. Flush mounted bolt
US5074730A (en) * 1990-11-21 1991-12-24 Avibank Mfg., Inc. Adjustable flush mounted bolt
US20220333632A1 (en) * 2021-04-16 2022-10-20 Andrew J. Klein Hidden recess furniture screw and driver system

Similar Documents

Publication Publication Date Title
US2253241A (en) Nut or bolt lock
US2555197A (en) Flush head screw or the like
JPS6059816U (en) Wheel tightening nut
JPS63168491U (en)
US2699567A (en) Caster glide
US2360531A (en) Lock nut
CN213861615U (en) Compasses
JPH0346016U (en)
JPS582889Y2 (en) Assembling equipment for wood products
JPH0353613U (en)
JPH03114233U (en)
JPH0243514U (en)
JPH018296Y2 (en)
KR200142376Y1 (en) Door lever of a bus
JPH0231912U (en)
US1160877A (en) Screw-head guard.
JPS6032418Y2 (en) Locknut
JPS6312116U (en)
USD153490S (en) Design for a shower head or simdlar article
USD251777S (en) Fence supportable decoration or similar article
JPS61103202U (en)
JPS61108508U (en)
JPS61157762U (en)
JPS6411669U (en)
JPS62126608U (en)