Patent US3861771A successfully refreshed from Google Patents.
US3861771A
Expired / Lapsed
US
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Cable connector with five point grip and non-twist, non-pullout function and with ratchet latch
Assignee: ELECTRO CLAMP Corp
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Filing: 1973-11-23
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Granted: 1975-01-21
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Expires: 1993-11-23
Abstract
Abstract A device to anchor a cable end with a clamping type action, of the general type embodying male and female jaw members having respective tails for connection to another body; of a nonshearing type; characterized particularly by five points where pressure is applied to a cable, e.g., of a helically braided, stranded type; the fifth pressure point being in the form of a transverse ridge or equivalent projection which is spaced toward the butt end of the cable from a third pressure surface exerting pressure in the same direction as the ridge; a fourth pressure surface exerting pressure against the opposite side of the cable at a point intermediate the third and fifth pressure points, the fifth point ridge bending the cable end toward the opposed fourth pressure surface to improve the grip thereof and hence the pullout resistance of the connector. The ridge which constitutes the fifth pressure element, acting at a point where its indenting action cannot weaken the cable, may have sharp edges extending along its transverse length so as to embody the dual function of improved pull-out resistance and crossing the helically protruding stranded surface of the cable in a manner to resist untwisting movement of the cable which tends to occur under cable tension.
Inventors
- 👤 Paul A Cornell
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 17:17
CPC Classifications
H; H01; H01R; H01R4/00; H01R4/28; H01R4/38; H01R4/40; H01R4/24; H01R4/2491; Y; Y10; Y10T; Y10T24/00; Y10T24/44; Y10T24/44291; Y10T24/4453; Y10T24/44538
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
251 words
A cable clamp of the type comprising male and female jaws having respective mounting tails, said male jaw including a transverse cylindrical head having a generally diametrical cablereceiving opening with ends enlarged in a plane normal to its axis, said female jaw including a generally C-shaped coupling sleeve with a cylindrical internal bearing wall receiving said head for relative hinging movements of said jaws between open and closed positions, said coupling sleeve having first and second cable-receiving openings on opposite sides thereof substantially on a diameter of said male head and positioned to register with said head opening in the open position of the clamp so as to receive the end portion of a cable; said coupling sleeve having, in said first and second sleeve openings, respective first and fourth pressure surfaces on opposite sides of the common axis of said sleeve openings and at diametrically opposite sides of said sleeve with respect to the hinge axis; said male head having, at opposite ends of said head opening, respective second and third pressure surfaces diametrically opposed to said first and fourth pressure surfaces respectively across the common axis of said sleeve openings; said male jaw, between said head and said tail thereof, having a transversely extending fifth pressure element projecting into the adjacent second sleeve opening when the clamp is closed, for bending the end portion of said cable toward and around said fourth pressure surface, to which said fifth pressure element is generally opposed but outside the outer extremity thereof.
Claim 2
Dependent Claim
251 words
A cable clamp of the type comprising male and female jaws having respective mounting tails, said male jaw including a transverse cylindrical head having a generally diametrical cablereceiving opening with ends enlarged in a plane normal to its axis, said female jaw including a generally C-shaped coupling sleeve with a cylindrical internal bearing wall receiving said head for relative hinging movements of said jaws between open and closed positions, said coupling sleeve having first and second cable-receiving openings on opposite sides thereof substantially on a diameter of said male head and positioned to register with said head opening in the open position of the clamp so as to receive the end portion of a cable; said coupling sleeve having, in said first and second sleeve openings, respective first and fourth pressure surfaces on opposite sides of the common axis of said sleeve openings and at diametrically opposite sides of said sleeve with respect to the hinge axis; said male head having, at opposite ends of said head opening, respective second and third pressure surfaces diametrically opposed to said first and fourth pressure surfaces respectively across the common axis of said sleeve openings; said male jaw, between said head and said tail thereof, having a transversely extending fifth pressure element projecting into the adjacent second sleeve opening when the clamp is closed, for bending the end portion of said cable toward and around said fourth pressure surface, to which said fifth pressure element is generally opposed but outside the outer extremity thereof.
Claim 3
Dependent Claim
51 words
A cable clamp as defined in claim 1, wherein said fifth pressure element is in the form of a tooth dimensioned to enter an open slot in said sleeve at the bottom of said second opening and projecting radially inwardly so as to penetrate a stranded cable in said second opening.
Claim 4
Dependent Claim
56 words
A cable clamp as defined in claim 1, wherein said fifth pressure element includes a transverse projection dimensioned to enter an open slot in said sleeve at the bottom of said second opening, and a plurality of wedge-shaped teeth projecting radially inwardly from said projection so as to penetrate a stranded cable in said second opening.
Claim 5
Dependent Claim
83 words
A cable clamp as defined in claim 1: said male jaw having an intermediate body portion connecting its said tail to its said head; said body portion being raised above said male jaw tail to provide an offset shoulder below and fifth pressure element; and latch means comprising transverse, parallel teeth in said offset shoulder and at the forward end of the female jaw tail respectively, positioned to interengage to hold the jaws in selected intermediate positions between their open and closed positions.
Claim 6
Dependent Claim
70 words
A cable clamp as defined in claim 1: the enlargements of said head opening providing, in the closed positions of the jaws, first and second pockets adjacent said first and fourth pressure surfaces respectively to a depth such that said second and third pressures surfaces, in the closed clamp, may deform longitudinally adjacent portions of said cable into bowed protrusions into said first and second pockets for cable pullout resistance.
Claim 7
Dependent Claim
86 words
A cable as defined in claim 5: said male jaw having an intermediate body portion connecting its said tail to its said head; said body portion having, adjacent the outer extremity of said third pressure surface, anD disposed between the same and said fifth pressure element, a depression into which said fourth pressure surface is effective to deform a portion of the cable, adjacent the bowed protrusion in said second pocket, into a third bowed protrusion of reverse curvature relative to that in said second pocket.
Claim 8
Dependent Claim
44 words
A cable clamp as defined in claim 6, wherein said fifth pressure element is effective to bend the end of said cable around and outwardly of said fourth pressure surface and in a direction opposite to that of the curvature of said third protrusion.
Claim 9
Dependent Claim
26 words
A cable clamp as defined in claim 1, wherein said fifth pressure element is in the form of a ridge extending transversely of said male jaw.
Claim 10
Dependent Claim
41 words
A cable clamp as defined in claim 8, wherein said ridge extends the full width of said male jaw; said female jaw having, at respective sides of its adjacent second sleeve opening, notches positioned to receive the ends of said ridge.
Claim 11
Dependent Claim
27 words
A cable clamp as defined in claim 8, wherein said ridge has a pair of marginal, cable-indenting edges defined on opposite sides of a longitudinal notch therein.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1978-01-20 | 1978-07-22 | 1979-01-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-01-20 | 1982-07-22 | 1983-01-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-01-20 | 1986-07-22 | 1987-01-21 | $7700.00 | Window Closed / Lapsed |