US3706959A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Ground connector for conduit
Assignee: OZ Electrical Manufacturing Co Inc
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Filing: 1971-04-08
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Granted: 1972-12-19
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Expires: 1991-04-08
Abstract
Abstract A grounding device is disclosed wherein a bushing is adapted to be threaded onto an end of conduit extending through a wall of a housing and a grounding lug is secured on the periphery of the bushing. The lug has a resilient C-shaped wire clamping portion and resilient wings extending from opposite ends thereof formed so as to provide spring tensioned connections to the periphery of the bushing. The wings have teeth adapted to make grounding connections with the wall of an enclosure or box upon threading of the bushing onto conduit extending through the enclosure, additionally providing anti-turning means to prevent the lug from rotating on its mounting screw.
Inventors
- 👤 Alexander R Norden
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 19:11
CPC Classifications
H; H01; H01R; H01R4/00; H01R4/58; H01R4/64
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
121 words
A grounding device for conduit comprising a bushing adapted to be threaded onto an end of conduit extending through a wall of an enclosure and a grounding lug secured on the periphery of the bushing wherein the improvement comprises; a. resilient wings extending from opposite sides of the lug and being formed backwards from the lug so as to provide spring tensioned connections to the periphery of the bushing at points adjoining both ends of the wings when the lug is secured to the bushing, and wherein b. the wings have teeth formed thereon extending laterally from the bushing and adapted to make grounding connections with a wall of a housing upon threading the bushing onto conduit extending through the wall.
Claim 2
Dependent Claim
121 words
A grounding device for conduit comprising a bushing adapted to be threaded onto an end of conduit extending through a wall of an enclosure and a grounding lug secured on the periphery of the bushing wherein the improvement comprises; a. resilient wings extending from opposite sides of the lug and being formed backwards from the lug so as to provide spring tensioned connections to the periphery of the bushing at points adjoining both ends of the wings when the lug is secured to the bushing, and wherein b. the wings have teeth formed thereon extending laterally from the bushing and adapted to make grounding connections with a wall of a housing upon threading the bushing onto conduit extending through the wall.
Claim 3
Dependent Claim
17 words
The grounding device according to claim 1 wherein there is at least one tooth on each wing.
Claim 4
Dependent Claim
22 words
A grounding device according to claim 2 wherein the teeth are formed by cutting a slot in one side of each wing.
Claim 5
Dependent Claim
49 words
A grounding device according to claim 1 wherein the lug has integral therewith upstanding flanges at opposite sides thereof for receiving a ground wire between the flanges, and a screw is threaded through an opening in one of the flanges for locking a ground conductor securely within the lug.
Claim 6
Dependent Claim
46 words
A grounding device according to claim 4 wherein the other of the flanges is bifurcated at the top and formed inwardly to retain a ground wire, the bifurcation permitting insertion of a screw in the base of the lug for fastening the lUg to the bushing.
Claim 7
Dependent Claim
21 words
A grounding device according to claim 5 wherein the teeth are formed by cutting slots in one side of each wing.
Claim 8
Dependent Claim
69 words
A grounding device according to claim 6 wherein the lug is a stamping formed from resilient sheet metal whereby the resilient flanges can spring load the clamping of a wire within the lug, the wings provide a spring loaded connection of the lug to the bushing and the teeth can spring load connection to a wall of an enclosure and prevent turning of the lug relative to the bushing.
Claim 9
Dependent Claim
107 words
A grounding device adapted to be electrically connected to an electrical conducting surface wherein the improvement comprises: a. a pair of resilient wings extending from opposite sides of said grounding device and formed so as to provide a spring tensioned and rotational inhibiting connection between said grounding device and said electrical conducting surface in response to the securing of said grounding device to said electrical conducting surface by a single fastening means; and wherein b. said wings of said grounding device are formed to substantially conform with the configuration of said electrical conducting surface subsequent to the securing of said grounding device to said electrical conducting surface.
Claim 10
Dependent Claim
107 words
A grounding device adapted to be electrically connected to an electrical conducting surface wherein the improvement comprises: a. a pair of resilient wings extending from opposite sides of said grounding device and formed so as to provide a spring tensioned and rotational inhibiting connection between said grounding device and said electrical conducting surface in response to the securing of said grounding device to said electrical conducting surface by a single fastening means; and wherein b. said wings of said grounding device are formed to substantially conform with the configuration of said electrical conducting surface subsequent to the securing of said grounding device to said electrical conducting surface.
Claim 11
Dependent Claim
35 words
A grounding device according to claim 8 wherein walls of said C-shaped portion of said grounding device are resilient to permit the spring loading of the set screw when it is tightened against the wire.
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) | 1975-12-19 | 1976-06-19 | 1976-12-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-12-19 | 1980-06-19 | 1980-12-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-12-19 | 1984-06-19 | 1984-12-19 | $7700.00 | Window Closed / Lapsed |