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Publication numberUS3000658 A
Publication typeGrant
Publication dateSep 19, 1961
Filing dateNov 27, 1959
Priority dateNov 27, 1959
Publication numberUS 3000658 A, US 3000658A, US-A-3000658, US3000658 A, US3000658A
InventorsVerner E Sprouse
Original AssigneeVernco Corp
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
Bar interconnection
US 3000658 A
Abstract  available in
Previous page
Next page
Claims  available in
Description  (OCR text may contain errors)

p 1961 v. E. SPROUSE 3,000,658

BAR INTERCONNECTION Filed Nov. 27, 1959 HNVENTEIR E NE as nuus filvivr Q was,

'A T R N EY Filed Nov. 27, 1959, Ser. No. 355,694 1 Claim. (Cl. 287-103) This invention relates to a simple but most efiective means for interconnecting ends of bars whereby the bars will not have a tendency to pull apart under stress, and at the same time may not move laterally one in respect to the other at the interconnection.

The interconnection is particularly usable where the two bars to be connected may at times be quickly disconnected, and then on occasion returned to their connected conditions. The invention also has the further advantage that no tools whatsoever are required to make the connection or to release the connection, the structure being operable simply by lifting an overlapping clip, and sliding one bar laterally from the other, and upon interconnection again, the reverse procedure is had.

A further advantage of the invention resides in the fact that a stiff interconnection is had, so that there is no tendency for one bar to be angularly disposed in relation to the other under normal conditions.

These and many other objects and advantages of the invention will become apparent to those versed in the art in the following description of one particular form, which description is made in reference to the accompanying drawing, in which FIG. 1 is a view of a pair of bar ends in disconnected relation;

FIG. 2 is a view in side elevation showing the bars interconnected positions with the retaining clip in raised position; and

FIG. 3 is a detail on an enlarged scale in vertical transverse section through a bar and the clip in lowered position.

One bar is provided with a T-slot 11 entering through the end 12. The second bar 13 is provided with a T-head 14 at its end, the T-head 14 being shaped to conform closely to the contours of the T-slot 11 so that the end 12 may butt against the end 15 of the bar 13. These two bars are brought one up to the other to have the T-head 14 extend along the side of the slot 11, whereupon the bars are moved one relative to the other to bring the T-head 14 within the slot 11, to have opposite faces of the two bars 10 and 13 come into the same planes.

On one of the bars, herein shown as the bar 10, a U- shaped clip 16 is preferably rockably attached at a distance along the bar 10 spaced from the slot 11.

The clip 16 is shaped to have side wings 17 and 18 spaced one from the other in parallel alignment or possibly with the wings 17 and 18 being inclined slightly one to ward the other so that they may be sprung apart when the clip is employed as follows. The clip, being hinged to the bar 10, is rocked downwardly from some such position as indicated in FIG. 2, to have the wings 17 and 18 frictionally slide down over the opposite sides of the bars 10 and 13, to be in intimate contact therewith until the web 19 comes down and strikes the upper edges 20 and 21 ot the bars 10 and 13 respectively, as il st in Patented Sept. 19, 1961 2 FIG. 3. The lower edges of the wings 17 and 1t? are preferably flared outwardly one from the other as indicated by the numerals 22 and 23. This permits easy rocking of the clip 16 downwardly over the edges 20 and 21 so as to bring the bars 10 and 13 into longitudinal alignment one with the other.

The clip 16 is also provided with a pair of fingers 24 and 2S normally extending inwardly one toward the other as indicated in FIG. 3. The lower ends of these fingers 24 and 25 have outturned lips 26 and 27 so that when those lips 26 and 27 engage over the top edge 21 of the bar 13, and the clip 16 is pushed downwardly, the fingers 24 and 25 will elastically spread apart to permit the clip to pass on down over the bar 13, and these fingers 24 and 25 are so located and designed that they may spring back under the lower edge of the bar 13, FIG. 3, so that the clip 16 is thus yieldingly retained in its position of extension by its wings 17 and 18 along the bars 10 and 13.

Thus, the wings 17 and 18 prevent one bar 10 from extending laterally angularly from the other bar 13, and thereby both bars 10 and 13 are maintained in straight longitudinal alignment. Not only do the members 22 and 23 aid in closing the clip 16 down over the bars 10 and 13, but they also serve as means for the operator engaging'the clip 16 to lift it from the overlapping condition.

Therefore while I have described my invention in the one particular form, it is obvious that structural changes may be employed without departing from the spirit of the invention, and I therefore do not desire to be limited to that precise form beyond the limitations which may be imposed by the following claim.

I claim:

A connection between opposing ends of two bars; one bar having a T slot entering an end and opening from both sides and the bar end; a second bar; a T head on the second bar; said head laterally entering said slot from either side and snugly fitting therein, the two bars extending in straight line directions oppositely from said head and slot engagement; a U shaped clip pivotally secured to one of said bars adjacent the connection to swing over both of said bar ends; said clip having a web from which extend two wings, one normally slightly toward the other, and each wing having a finger extending trorn its lower edge one toward the other and thence outwardly; and said fingers first camming apart said wings in traversing said bar ends as the clip is rocked over said connection, said fingers being located along said wings to pass over said second bar; and said fingers springing under bars yieldingly resisting reverse rocking of the clip, thereby preventing lateral displacement of one bar from the other at said connection.

References Cited in the file of this patent UNITED STATES PATENTS 348,944 Allen Sept. 14, 1886 922,263 Cole May 18, 1909 1,170,429 Dunlap Feb. 1, 1916 2,543,933 Pomrnier Mar. 6, 1951 2,704,963 Parachek Mar. 29, 1955 2,718,406 Sawyer et a1. Sept. 20, 1955.

Patent Citations
Cited PatentFiling datePublication dateApplicantTitle
US348944 *Sep 14, 1886 Geoege allen
US922263 *Jul 10, 1907May 18, 1909Bengamin F ColeRod-coupling.
US1170429 *Nov 23, 1914Feb 1, 1916Joseph B DunlapSlip-joint for sucker and pull rods.
US2543933 *Sep 20, 1945Mar 6, 1951Henry PommierDetachable fastener
US2704963 *Nov 3, 1950Mar 29, 1955Parachek Joseph RRetractible rear view mirrors
US2718406 *Mar 30, 1953Sep 20, 1955Max SawyerWheel mounting means for a collapsible cart
Referenced by
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US3797838 *Aug 4, 1972Mar 19, 1974Ruebel RSectional ski
US4125920 *Apr 4, 1977Nov 21, 1978Grimes Larry RFastening mechanism
US4790148 *Dec 10, 1987Dec 13, 1988Gerard FainiRing shank
US4875259 *Mar 24, 1988Oct 24, 1989Minnesota Mining And Manufacturing CompanyIntermeshable article
US5088164 *Mar 22, 1989Feb 18, 1992Minnesota Mining And Manufacturing CompanyContainer with intermeshable closure members
US5113555 *Nov 26, 1990May 19, 1992Minnesota Mining And Manufacturing CompanyContainer with intermeshable closure members
US5201101 *Apr 28, 1992Apr 13, 1993Minnesota Mining And Manufacturing CompanyMethod of attaching articles and a pair of articles fastened by the method
US5312201 *Nov 30, 1992May 17, 1994Julius Blum Gesellschaft M.B.H.Connecting fitting
US5360270 *Apr 28, 1992Nov 1, 1994Minnesota Mining And Manufacturing CompanyReusable security enclosure
US5634245 *Jul 14, 1995Jun 3, 1997Minnesota Mining And Manufacturing CompanyStructured surface fastener
US5657516 *Oct 12, 1995Aug 19, 1997Minnesota Mining And Manufacturing CompanyDual structured fastener elements
US7175152 *Jul 12, 2004Feb 13, 2007Csav, Inc.Display mounting device
US7334762 *Dec 29, 2006Feb 26, 2008Csav, Inc.Display mounting device
US7691126 *Sep 15, 2003Apr 6, 2010Karl Storz Gmbh & Co. KgMedical instrument
US8430905Oct 28, 2009Apr 30, 2013Karl Storz Gmbh & Co. KgMedical instrument
US20040133235 *Sep 15, 2003Jul 8, 2004Uwe BacherMedical instrument
US20050127260 *Jul 12, 2004Jun 16, 2005Jay DittmerDisplay mounting device
US20070120030 *Dec 29, 2006May 31, 2007Csav, Inc.Display mounting device
US20100049242 *Feb 25, 2010Uwe BacherMedical Instrument
EP0156714A1 *Mar 8, 1985Oct 2, 1985NORTENE Société Anonyme dite:Alignment and connection device for profiles, especially plastic ones, for the construction of trellis work, and process for its use
U.S. Classification403/321, 24/DIG.520, 403/331
International ClassificationF16B2/24, F16B7/22
Cooperative ClassificationF16B2/245, Y10S24/52, F16B7/22
European ClassificationF16B7/22, F16B2/24B3
Legal Events
Jan 7, 1982ASAssignment
Effective date: 19820107