Patent US3603913A successfully refreshed from Google Patents.
US3603913A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Strain relief clamp for electrical wiring connector
Assignee: Lockheed Martin Corp
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Filing: 1969-04-11
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Granted: 1971-09-07
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Expires: 1989-04-11
Abstract
Abstract A clamping device is designed for use on general purpose multipin connectors by attaching to the connector and extending therefrom to terminate in a wire-bearing surface with means to facilitate retention of a band or tie string to secure all the wires extending from the connector. This bundle of wires is thereby gripped in a firm and immovable position so that all linear and lateral movement thereof which might occur in operation is prevented from being applied to the point of connection of the several wires with the connector. Thus, stressing and eventually breaking of the connection point of any of the several wires is obviated.
Inventors
- 👤 John M Hasty Jr
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 19:33
CPC Classifications
H; H01; H01B; H01B17/00; H01B17/56; H01B17/58; H01R; H01R13/00; H01R13/58; H01R13/5804
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
182 words
A strain relief clamp for an electrical connector element having multiple attachment points for the connection of the ends of several wires extending therefrom comprising: an attaching member including engagement means for the connection thereof to the end of said element; and an arm carried by and extending in a direction away from said attaching member, said arm having a relatively wide root end and narrowing outwardly to terminate in a keeper element formed by an extension arm portion of smaller transverse dimension than said narrowing arm and of generally uniform transverse dimension sized to accommodate the transverse dimension of a wire of said connector element to be connected to said member as aforesaid, a step between said narrowing arm and said extension arm portion and a lateral projection at the extremity of said extension arm portion on each side thereof, said projection being defined by a surface disposed in a predetermined position relative to an inner periphery of said attaching member adapted to act as a bearing surface for said wires when said member is connected to said element as aforesaid.
Claim 2
Dependent Claim
182 words
A strain relief clamp for an electrical connector element having multiple attachment points for the connection of the ends of several wires extending therefrom comprising: an attaching member including engagement means for the connection thereof to the end of said element; and an arm carried by and extending in a direction away from said attaching member, said arm having a relatively wide root end and narrowing outwardly to terminate in a keeper element formed by an extension arm portion of smaller transverse dimension than said narrowing arm and of generally uniform transverse dimension sized to accommodate the transverse dimension of a wire of said connector element to be connected to said member as aforesaid, a step between said narrowing arm and said extension arm portion and a lateral projection at the extremity of said extension arm portion on each side thereof, said projection being defined by a surface disposed in a predetermined position relative to an inner periphery of said attaching member adapted to act as a bearing surface for said wires when said member is connected to said element as aforesaid.
Claim 3
Dependent Claim
44 words
The clamp of claim 1 adapted to be connected as aforesaid to connector elements having wires of different transverse dimensions wherein said attaching member is a ring interrupted by a space to accommodate the transverse dimension of the largest wire accommodate by said member.
Claim 4
Dependent Claim
15 words
The clamp of claim 1 wherein said projection surface is an arc of a circle.
Claim 5
Dependent Claim
28 words
The clamp of claim 1 wherein said arm is angularly offset relative to said attaching member, and said projection surface is concentric with respect to said attaching member.
Claim 6
Dependent Claim
50 words
The clamp of claim 1 wherein said keeper element includes a second lateral projection on each side of said extension arm portion in spaced relation to and inwardly of the extreme lateral projection aforesaid, said lateral projections having inner surfaces in alignment and concentric with respect to said attaching member.
Claim 7
Dependent Claim
47 words
The clamp of claim 5 adapted to be connected as aforesaid to connector elements having wires of different transverse dimensions wherein the transverse dimension of said arm disposed between said extreme and said second lateral projection approximates that of the smallest wire of any said connector element.
Claim 8
Dependent Claim
32 words
The clamp of claim 1 wherein said arm is angularly offset relative to said attaching member, and said projection surface faces away from and at substantial right angle to said attaching member.
Claim 9
Dependent Claim
16 words
The clamp if claim 7 wherein said keeper element surface is an arc of a circle.
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) | 1974-09-06 | 1975-03-08 | 1975-09-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-09-06 | 1979-03-08 | 1979-09-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-09-06 | 1983-03-08 | 1983-09-07 | $7700.00 | Window Closed / Lapsed |