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Publication numberUS3729780 A
Publication typeGrant
Publication dateMay 1, 1973
Filing dateJul 8, 1971
Priority dateJul 8, 1971
Publication numberUS 3729780 A, US 3729780A, US-A-3729780, US3729780 A, US3729780A
InventorsR White
Original AssigneeR White
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
US 3729780 A
A clamp having discs carried at opposed ends of a foldable connecting strap, one of said discs carrying a projecting pointed penetrating shaft, the other of said discs carrying a shaft receiving sleeve, and interengaging means between the shaft and sleeve to secure the opposed discs in folded clamping position.
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Description  (OCR text may contain errors)

United States Patent [191 White [451 May 1, 1973 CLAMP [76] Inventor: Robert L. White, 15th Michigan Bldg. B-l No. 8, Joplin, Mo.

[22] Filed: July 8, 1971 [21] App1.No.: 160,705

[52] US. Cl. .,..24/156, 24/208 A, 24/150 FP [51] Int. Cl. ..A44b 9/10, A441: 17/00 [58] Field of Search ..24/208 A, 16 PB,

24/237, 212, 217, 150 R, 150 PP, 156, 153 R, 153 U, 153.1, 157 R; 40/22, 24, 20, 21

[56] References Cited UNITED STATES PATENTS 2,937,834 5/1960 Orenick ..24/216 2,548,104 4/1951 Frison 3,210,820 10/1965 Humiston 3,466,077 9/1969 Moberg ..24/16 PB 3,481,528 12/1969 Leiter ..229/52 3,600,027 8/ 1971 Noland ..24/ 16 PB FOREIGN PATENTS OR APPLICATIONS 546,770 8/1956 Italy ..24/208 A 1,264,553 5/1961 France ....24/l6 PB 1,436,187 12/1968 Germany ....24/16 PB 1,024,220 3/1966 Great Britain ..24/208 A Primary ExaminerBemard A. Gelak Attorney-J. 0. Martin et a1.

[5 7] ABSTRACT A clamp having discs carried at opposed ends of a foldable connecting strap, one of said discs carrying a projecting pointed penetrating shaft, the other of said discs carrying a shaft receiving sleeve, and interengaging means between the shaft and sleeve to secure the opposed discs in folded clamping position.

7 Claims, 4 Drawing Figures Patented May 1, 1973 3,729,780

F/G. FIG 2.

I INVENT OR ROBERT L. WHITE CLAMP This invention relates to improvements in clamps and is concerned more particularly with clamps of the flexible or folding type.

The general object of the invention is to provide a clamp of simplified construction which is adaptable for a great variety of uses as either a permanent attachment or a temporary fastener capable of multiple reuse.

A more particular object is to provide a clamp comprising hinged discs, one of which carries a pointed shaft for penetrating material to be engaged and the other of which carries a hollow sleeve for protectively receiving the protruded end portion of the shaft. The invention also contemplates the provision of interengaging means between the shaft and the sleeve to secure the opposed discs in clamping position.

Other and further objects and advantages will be apparent from the following detailed description taken in conjunction with the accompanying drawings wherein a preferred embodiment of the principles of the invention has been selected for exemplification.

In the drawings:

FIG. 1 is a perspective view of a clamp constructed and arranged in accordance with the invention and shown in folded open position;

FIG. 2 is a plan view of the clamp prior to folding;

FIG. 3 is a fragmentary sectional view showing the clamp engaged in locked position; and

FIG. 4 is an enlarged fragmentary sectional view showing the clamp disengaged or in unlocked position.

Referring more particularly to the drawings, wherein like numerals refer to like parts, plates or discs and 12 are carried at opposite ends of a strap 14 having a central portion 15 of reduced thickness to form a fold line whereby to bring the discs 10 and 12 in opposed clamping position.

An inwardly projecting shaft 18 is carried by or integrally formed with the disc 10, preferably at the central portion thereof, and terminates in a material penetrating pointed free end portion 20. The shaft 18, including its pointed end, is preferably substantially rigid. A plurality of outwardly extended wedge like projections 22 or the like are integrally formed or otherwise provided adjacent to but short of the free end portion for a purpose as hereinafter explained.

The opposed plate or disc 12 is centrally apertured as at 24 and carries an outwardly extending hollow tubular sleeve 26 for receiving the projecting free end portion 20 of the shaft 18 when the discs 10 and 12 are pressed together in clamping position. While the shaft 18 and sleeve 26 are illustrated in axial alignment, relative tilting of these members may be necessary to facilitate passage of the projections through the aperture 24. The shaft 18 and protective sleeve 26 may be of any desired length and diameter.

An annular, inwardly extending square cornered flange 28 is provided at the junction of the aperture 24 and the sleeve 26 for receiving the lateral faces of the projections 22 after the end portion 20 of the shaft 18 is thrust through the aperture 24 into the hollow sleeve 26. Such interengaging bearing surfaces 22 and 28 tend to secure the discs 10 and 12 in closed clamping position.

The projections 22 may be relatively rigid yet capable of being forced through the a erture 24 for locking engagement with the flange 28 0 provide a substantially permanent attachment such as when the clamp is employed as an identifying tag attached to the ear of an animal for example, or as a seal tag for freight carriers or the like. However, when desired, the projections 22 may be relatively resilient for disengagement with the flange 28 when the discs 10 and 12 are pulled apart for reuse, such as when the clamp is temporarily used for fastening sheet material such as fabrics or the like, for securing diapers for example, or for attaching other articles such as buttons.

The clamp of the present invention may be integrally formed such as by molding. The material forming the clamp may be of any suitable plastic composition, nylon for example, or metal sheet material, and may be of any strength, rigidity, size or other characteristic suitable for the selected function of its structure.

it is to be understood, accordingly, that the present invention is not confined to the particular device herein illustrated and described but embraces all such modifications thereof as may come within the scope of the following claims.

I claim:

1. A clamp which comprises:

a. opposed clamping members;

b. a shaft having a constant diameter formed integrally with one of said clamping members, said shaft having a pointed portion at one end and a plurality of projections adjacent said pointed portion; and

c. a hollow protective sleeve formed integrally with and projecting outwardly of the other of said clamping members, said hollow sleeve being adjacent an aperture in the other of said clamping members to permit insertion of said shaft into said hollow sleeve, said aperture having an abrupt shoulder forming an opening, the diameter of said opening being substantially the diameter of said shaft whereby said shoulder engages said projections to secure said opposed clamping members in clamping position.

2. The clamp of claim 2 wherein the shaft, the sleeve and the interengaging means are substantially rigid.

3. The clamp of claim 2 wherein the opposed clamping members are substantially rigid discs.

4. The clamp of claim 2 wherein the clamping members are carried at opposite end portions of a foldable strap.

5. The clamp of claim 3 wherein the discs are carried at opposite end portions of a foldable strap.

6. The clamp of claim 2 wherein the shaft and the sleeve are substantially rigid.

7. The clamp of claim 2 wherein the clamping members are substantially rigid discs and wherein the discs and their respective shaft and sleeve and interengaging means are integrally formed.

Patent Citations
Cited PatentFiling datePublication dateApplicantTitle
US2548104 *Sep 29, 1948Apr 10, 1951Frison Robert ETag and card holder
US2937834 *Feb 9, 1959May 24, 1960Orenick Emil HCable fastener
US3210820 *May 26, 1964Oct 12, 1965Scovill Manufacturing CoOne-way snap fastener combination
US3466077 *May 1, 1968Sep 9, 1969Brooks Co E JAll-plastic seal
US3481528 *Mar 14, 1968Dec 2, 1969Int Paper CoContainer handle
US3600027 *Nov 27, 1968Aug 17, 1971Layman Glenn WTamper proof seal
DE1436187A1 *Sep 24, 1964Dec 12, 1968Karl Meisenbach Kg SpezialfabrKunststoff-Verschlussklammer
FR1264553A * Title not available
GB1024220A * Title not available
IT546770A * Title not available
Referenced by
Citing PatentFiling datePublication dateApplicantTitle
US4053009 *Apr 2, 1976Oct 11, 1977William Joel Reginald EdlinSuspension and heading stiffener for curtains, drapes or the like
US4067065 *Dec 8, 1976Jan 10, 1978American Optical CorporationChemical splash shield
US4167850 *Aug 8, 1977Sep 18, 1979Fairchild Camera And Instrument CorporationElectronic watch apparatus
US4344240 *Jan 16, 1981Aug 17, 1982S And S AssociatesIdentification snap
US4534089 *Apr 8, 1983Aug 13, 1985Swan Thomas CFastening device for flexible sheets
US4536924 *Mar 5, 1984Aug 27, 1985Patrick WilloughbyOne piece clamping device
US4577376 *Aug 10, 1983Mar 25, 1986Clendinen Charles DSnap fastener
US4646399 *Feb 21, 1986Mar 3, 1987Burton, Parker & Schramm, P.C.Snap fastener
US5234139 *Jun 30, 1992Aug 10, 1993Korenstein Michael WApparatus for the management of paired garments
US5338224 *Dec 28, 1992Aug 16, 1994Weidmuller Interface Gmbh & Co.Labelling device for electrical terminal blocks
US5535491 *May 4, 1994Jul 16, 1996Allport; Douglas C.Tag fastener
US5542160 *Feb 18, 1994Aug 6, 1996Frank Innovation GmbhAttachment element for the attachment of straps, belts or loop on edges of flat pieces of material
US5577395 *May 4, 1995Nov 26, 1996Scovill Fasteners Inc.Clip for an identification bracelet
US6116666 *Oct 17, 1997Sep 12, 2000Envopak Group LimitedTamper-evident locking device
US6463636 *May 10, 2001Oct 15, 2002Russell FriedewaldSock mate
US6899053 *Jul 17, 2002May 31, 2005Mark W HawkinsFlag clamping device for automobile antenna
US6935268 *Jul 28, 2004Aug 30, 2005Mark W. HawkinsFlag clamping device
US7258315 *Jan 29, 2004Aug 21, 2007Fasteners For Retail, Inc.Foldable sign holder
US7305782Mar 15, 2006Dec 11, 2007Olsen Sandra APet tag holder
US7465135 *Nov 14, 2003Dec 16, 2008Maclean-Fogg CompanyU-Nut fastening assembly
US8151419Jun 25, 2009Apr 10, 2012Ronda RolainIdentification tag retainer
DE2738043A1 *Aug 19, 1977Jun 15, 1978American Optical CorpSicherheits-gesichtsschild gegen spritzendes material
EP0085547A1 *Jan 27, 1983Aug 10, 1983Richard RandolphFasteners
EP0611531A1 *Oct 27, 1993Aug 24, 1994FRANK INNOVATION GmbHFastening device for securing straps, bands or loops to the edges of a planar work piece
WO1996006215A1 *Aug 23, 1995Feb 29, 1996Peter KennyA clip for clothing
U.S. Classification24/704.2, 24/543
International ClassificationG09F3/00, A44B99/00
Cooperative ClassificationG09F3/00, A44B99/00
European ClassificationG09F3/00, A44B99/00