Search Images Maps Play YouTube News Gmail Drive More »
Sign in
Screen reader users: click this link for accessible mode. Accessible mode has the same essential features but works better with your reader.

Patents

  1. Advanced Patent Search
Publication numberUS2712167 A
Publication typeGrant
Publication dateJul 5, 1955
Filing dateMar 7, 1951
Priority dateMar 7, 1951
Publication numberUS 2712167 A, US 2712167A, US-A-2712167, US2712167 A, US2712167A
InventorsEdward Blanchard Albert
Original AssigneeBurndy Engineering Co Inc
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
Parallel cable clamp
US 2712167 A
Abstract  available in
Images(1)
Previous page
Next page
Claims  available in
Description  (OCR text may contain errors)

July 5, 955 E. BLANCHARD 2,712,167

PARALLEL CABLE CLAMP Filed March 7, 1951 lll l I Mill Til lllllllllllllll llll l I INVENTO R Albefii fidiwardblanc/zwd I mxl tmf United States Patent PARALLEL CABLE CLAMP Albert Edward Blanchard, New Hyde Park, N. Y., as-

signor to Bnrndy Engineering Co. Inc., a corporation of New'York Application March 7, 1951, Serial No. 214,379

1 Claim. (Cl. 24-81) My invention relates to clamping connectors and more particularly to connectors adapted to be quickly installed on a cable or conductor.

Sometimes it is desirable to separate the various component elements of the connector at the top of a pole and assemble them about a wire, which procedure is time consuming and frequently contributes to dropping one of the elements especially if the assembly is atmeans whereby the connection is in position to accept resiliently an additional cable even though the connector is secured to a line; and to provide a clamping spring that will occupy a minimum space when compressed and lessen the possibility of loosening the finished connectron.

I accomplish these and other objects and obtain my new results as will be apparent from the device described in the following specification, particularly pointed out in the claims, and illustrated in the accompanying drawing, in which Fig. 1 is a top view of my connector shown mounted to parallel conductors, with a portion of the bolt head cut away to show the structure of the upper clamping member;

Fig. 2 is a transverse sectional view of my connector taken along line 22 of Fig. 1;

Fig. 3 is a longitudinal sectional elevation view of th connector taken along line 33 of Fig. 1;

Fig. 4 is a side elevation view of the connector showing one method of attachment to an additional cable; and

Fig. 5 is a side elevation view of the same showing a different method of attachment.

In the preferred version of my invention illustrated in the drawing, reference numerals and 12 designate upper and lower clamping members, respectively, each containing parallel grooves for positioning a plurality of cables or conductors to be supported therein.

In the upper member 10, the grooves comprise concave seats designated by numerals 14 and 16 for the respective conductors 18 and 20, while numerals 22 and 24 designate the corresponding seats in the lower clamping member 12.

A bolt 26 threadedly engages aperture 28 located between the respective seats 22 and 2.4 in the lower clamping member, the spiral shaped spring 30 being positioned between the head 32 of the bolt 26 and the upper clamping member 10. A washer 34 may be conveniently inserted between the spring and the upper clamping member, forming a support for the base of the spring.

The upper and lower clamping members are provided with outwardly flared lips 36, 38 and 40, 42, respectively, having opposing cam surfaces 36a, 38a, and 40a, 42a

2,712,167 Patented July 5, 1955 ice for facilitating the entrance of a conductor therebetween, the opposite set of lips adapted to be compressed at the backs thereof by finger contacting surfaces 36b, 38b, and 40b and 42b against the resilient action of the spiral spring, as shown in Fig. .4. The cable will be thus resiliently gripped after installation which is an aid to the installer. To assist in this operation, the upper clamping member is provided with an oval shaped aperture 44, as in Figs. 1 and '3, through which the bolt projects to permit the upper clamping member to be tilted or rocked from one side to expedite opening.

The axial ends of the clamping members 10 and 12 are formed with extending arms 46 in one member and accommodating openings or notches 48 in the other to allow the upper clamping member to rock without loss of longitudinal alignment axially of the conductors. The arms 46 are of a sufiicient length to enable the connector to accommodate conductors of various sizes depending on the size of the device. This construction will also allow two conductors of a different size to be secured together as is shown by cables 18 and 20 in the drawing.

The lips 36 and 38 of the upper clamping member 10 are staggered in relationship to the lips 40 and .42, respectively, of lower clamping member 12. Four recesses in the upper clamping member, one of which is indicated by numeral 50 in Fig. 1, accommodate the four lips of the lower clamping member, and the two recesses in the lower clamping member, one of which is indicated by numeral 52 in Fig. 2, accommodate the two upper lips in the upper clamping member, to permit the members to be rocked, as is shown in Fig. 4.

in the non-illustrated empty assembled position, the clamping members are in a closed position through the action of the spring 30. In this position, one set of opposing lips may be spread apart to facilitate entrance of the first cable 18 by pinching the other set of lips, the bottom member acting as a bearing surface on which the upper member rides during the rocking action.

As shown in Fig. 4, the opposing set of lips on one side of the device may be pinched together by the fingers, employing the inserted cable 18 as a bearing to open the other set of lips to receive the cable 20.

Another method of laterally opening the grooves is to hold the two spaced arms 46 by the thumb and middle finger while depressing the bolt head against the conical spring 30 with the forefinger forcing the members apart, as illustrated in Fig. 5. The connector may be opened with one hand and snapped over a cable or conductor. Releasing the finger pressure will allow the members to be drawn together by the action of the spring and clamp the cable or conductor. Thereafter an additional cable may be inserted in the other side of the connector while the connector is supported by the first cable.

The spring 30 is preferably spirally wound into the shape of an involute cone, as shown in Fig. 4, to allow the spring to be compressed into a single thickness, as indicated in Fig. 1, when the bolt is tightened to secure the connector to the conductors.

If desired the seats 14 and 16 may be scored to provide a better grip on the conductors.

By my design I can attach the connector to an endless cable or conductor strung across the top of a pole with one hand, and cam another wire through the outwardly flared lips of remaining set of grooves into position. The bolt may be then tightened to secure the conductors. When the connector is in a normal assembled position not connected to the cables, the spring exerts sufficient pressure to maintain the members together. When the connector is mounted to a first cable by opening the one set of lips, it will be self-supported on the cable until the second cable is mounted to the connector through the remaining set of lips. This construction minimizes separation and dropping of the connector or its component parts and simplifies installation procedure.

I have thus described my invention, but I desire it understood that it is not confined to the particular forms or uses shown and described, the same being merely illustrative, and that the invention may be carried out in other ways without departing from the spirit of my invention, and, therefore, I claim broadly the right to employ all equivalent instrumentalities coming within the scope of the appended claims, and by means of which, objects of my invention are attained and new results accomplished, as it is obvious that the particular embodiments herein shown and described are only some of the many that can be employed to attain these objects and accomplish these results.

I claim:

A connector for securing a plurality of cables comprising a pair of complementary clamping members, each having a pair of opposing seat portions to accommodate the cables to be positioned therein; a bolt positioned centrally of the clamping members and extending through one member into the other member for securing the members together with an elongated recess for the bolt in the one member to permit said member to be tilted with respect to the other member, one of said clamping members having integrally extending arm portions on the two end faces longitudinally positioned with respect to the seat portions, the other of said clamping members having recesses for receiving said arm portions on the corresponding two end faces for keeping the two clamping members in aligned position when the clamping members are open for receiving the cables, and a spiral spring having a flat supporting section positioned between the head of the bolt and the adjacent clamping member for urging the said clamping member towards the other clamping member.

References Cited in the file of this patent UNITED STATES PATENTS

Patent Citations
Cited PatentFiling datePublication dateApplicantTitle
US1686678 *Aug 11, 1923Oct 9, 1928Burke Walter TFlexible-cable adjuster
US1979091 *Jul 23, 1930Oct 30, 1934Delta Star Electric CoElectrical distribution connecter
US2013437 *Sep 20, 1934Sep 3, 1935Electrical Eng Equipment CoClamp
US2065589 *Feb 17, 1933Dec 29, 1936Thompson Prod IncBall bearing joint
US2081047 *Dec 10, 1929May 18, 1937Gen ElectricClamp
US2452406 *Dec 2, 1947Oct 26, 1948Bernhard VolkeryTwo-part, screw-connected clamp
US2573125 *Jan 25, 1949Oct 30, 1951Walter WilksDouble-ended clothespin
*DE156249C Title not available
*DE198919C Title not available
DE599171C *Jun 4, 1933Jun 26, 1934Wilhelm Hofmann Fa JSchraubenbefestigung an Abzweigklemmen
FR465868A * Title not available
IT364622B * Title not available
Referenced by
Citing PatentFiling datePublication dateApplicantTitle
US2821762 *Jun 21, 1955Feb 4, 1958Foose George WClamps
US3051395 *Jun 9, 1959Aug 28, 1962Melvin J SpritzRefrigerator deodorizer
US3084410 *Sep 29, 1961Apr 9, 1963Six CousinsDouble ended clothes pin
US3100529 *Jun 6, 1960Aug 13, 1963Jersey Prod Res CoApparatus for positioning well pipe
US3188602 *Nov 19, 1962Jun 8, 1965Jasper Blackburn CorpParallel-groove electrical connector
US3191140 *Jun 5, 1963Jun 22, 1965Eaton Mfg CoElectrical conductor terminal clamp
US3199062 *Mar 1, 1962Aug 3, 1965Jasper Blackburn CorpParallel groove connector for hot-stick application
US3727699 *Aug 13, 1971Apr 17, 1973Case Co J ISupport means for cylinder conduits
US4081118 *Apr 23, 1976Mar 28, 1978Robert Alan MasonCarrier for use in supporting a canoe or other elongate article on a vehicle roof
US4090762 *Jan 18, 1977May 23, 1978Harvey Hubbell, IncorporatedElectrical terminal connection and method of making same
US4707051 *Aug 28, 1986Nov 17, 1987Hall Gaddis GTap connector
US5342224 *Nov 19, 1993Aug 30, 1994Burndy CorporationParallel street light tap connector
US5704816 *Nov 20, 1995Jan 6, 1998Thomas P. PolidoriHinged electrical connector
US5941483 *Apr 24, 1998Aug 24, 1999Volvo Trucks North America, Inc.For mounting a service line to a support structure
US5987709 *Sep 30, 1997Nov 23, 1999Chou; Tser-WenRe-attachable safety connector
US6119317 *Mar 26, 1999Sep 19, 2000Pfister; Joel W.Clamp assembly
US6286192 *Dec 14, 2000Sep 11, 2001Joel W. PfisterClamp assembly
US6799607Jun 18, 2003Oct 5, 2004Pbm, Inc.Sanitary conduit support systems and methods
US6883761Feb 13, 2003Apr 26, 2005General Electric CompanySupport for tubular members
US7107941 *Jan 2, 2004Sep 19, 2006Pei-Wen ChenSafety device of collar for pet
US7195038Sep 1, 2004Mar 27, 2007Pbm, Inc.Conduit supports
US7367363Dec 19, 2005May 6, 2008Pbm, Inc.Sanitary conduit support systems
US7481247Dec 19, 2005Jan 27, 2009Stauff CorporationSanitary conduit supports
US7543606Dec 19, 2005Jun 9, 2009Stauff CorporationMethods for supporting conduits in a sanitary environment
US7694918 *Jun 20, 2007Apr 13, 2010Hong Fu Jin Precision Industry (Shenzhen) Co., Ltd.Wire clamp for machine
US7938365Aug 22, 2006May 10, 2011Airbus Deutschland GmbhLine holder in an aircraft
US7950534 *May 27, 2009May 31, 2011Jui-Chien KaoHand tool rack
US8302265 *Nov 8, 2010Nov 6, 2012Arlington Industries, Inc.Wire gripper for supporting an electrical box or suspended load
US8523858 *Jun 21, 2005Sep 3, 2013DePuy Synthes Products, LLCAdjustable fixation clamp and method
US20060287652 *Jun 21, 2005Dec 21, 2006Lessig Richard KAdjustable fixation clamp and method
US20130240685 *Mar 15, 2013Sep 19, 2013Hubbell IncorporatedSide-Loading Quadrant Deadend Clamp Assembly
US20130295786 *Feb 21, 2013Nov 7, 2013Thomas & Betts International, Inc.Mechanical Grounding Connector
US20140158838 *Aug 15, 2013Jun 12, 2014Bo LuClamping Device for Electrical Cables
DE102005039652B4 *Aug 22, 2005Jul 21, 2011Airbus Operations GmbH, 21129Haltermodul zum Arretieren von Leitungen, Haltersystem zur geordneten Durchführung von Leitungen, Flugzeug und Verwendung einer Vielzahl von Haltermodulen
EP1447605A1 *Dec 12, 2003Aug 18, 2004General Electric CompanySupport for tubular members
Classifications
U.S. Classification24/569, 269/43, 248/68.1, D08/396, 24/135.00R, 439/781, 403/391
International ClassificationF16L3/22, H01R4/40, H01R4/38, F16L3/237
Cooperative ClassificationF16L3/237, H01R4/40
European ClassificationF16L3/237, H01R4/40