Patent US4213664A successfully refreshed from Google Patents.
US4213664A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Visually inspectable grounding connector for electrical cable
Assignee: Individual
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Filing: 1978-10-11
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Granted: 1980-07-22
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Expires: 1998-10-11
Abstract
Abstract An adapter shell and an intermediate shell internally contain an annular coil spring between an annular cam and a ring to effect radial contraction and compression of the spring into grounding contact with the braided layer of an electrical cable. Clearances are provided internally at one end of the intermediate member to define a line of sight to visually check the integrity of the grounding contact. A nut shell containing an annular seal closes the line of sight after the visual check has been made.
Inventors
- 👤 Warren G. McClenan
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 17:57
CPC Classifications
H; H01; H01R; H01R9/00; H01R9/03; H01R9/05; H01R13/00; H01R13/648; H02; H02G; H02G3/00; H02G3/02; H02G3/06; H02G3/0616
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
121 words
A visually inspectable grounding connector for electrical cable comprising: a coaxially connectable pair of cylindrical members of electrically conductive material internally supporting an annular electrically conductive grounding means of radially contractable structure; said pair of members internally containing means to radially contract said grounding means as a function of telescoping connecting movement of said pair of members; said pair of cylindrical members and said means to radially contract said grounding means together defining a least diameter affording an unobstructed line of sight from one end of one of said pair of members to the radially inner portion of said grounding means after said pair of members have been telescopically connected to fully radially contract said grounding means onto an electrical cable.
Claim 2
Dependent Claim
121 words
A visually inspectable grounding connector for electrical cable comprising: a coaxially connectable pair of cylindrical members of electrically conductive material internally supporting an annular electrically conductive grounding means of radially contractable structure; said pair of members internally containing means to radially contract said grounding means as a function of telescoping connecting movement of said pair of members; said pair of cylindrical members and said means to radially contract said grounding means together defining a least diameter affording an unobstructed line of sight from one end of one of said pair of members to the radially inner portion of said grounding means after said pair of members have been telescopically connected to fully radially contract said grounding means onto an electrical cable.
Claim 3
Dependent Claim
18 words
A grounding connector as in claim 1 in which said grounding means comprises a spring having helical coils.
Claim 4
Dependent Claim
33 words
A grounding connector as in claim 1 in which said means to radially contract said grounding means comprises internal shape characteristics of said pair of members and shape characteristics of said grounding means.
Claim 5
Dependent Claim
71 words
A grounding connector as in claim 1 in which said grounding means comprises an annular spring and said means to radially contract said grounding means comprises an annular cam surface on one of said pair of members in axially spaced apart relation to an annular surface within the other of said pair of members, said annular surface and said annular cam means being disposed on opposite sides of said annular spring.
Claim 6
Dependent Claim
51 words
A grounding connector as in claim 4 in which said annular surface comprises an annular ring carried on an internal shoulder of the other of said pair of members, said annular ring having an inner diameter that is less than the inner diameter of said spring by a predetermined radial distance.
Claim 7
Dependent Claim
132 words
In a grounding connector for electrical cable having a coaxially connectable pair of cylindrical members of electrically conductive material internally supporting an annular electrically conductive grounding means of radially contractable structure, with the pair of members internally containing means to radially contract the grounding means as a function of telescoping connecting movement of the pair of members, the improvement comprising: visual inspection means comprising internal shape characteristics of the pair of cylindrical members and of the means to radially contract the grounding means which together define a least diameter affording an unobstructed line of signt from one end of the pair of members to the radially inner portion of the grounding means after the pair of members have been telescopically connected to fully radially contract the grounding means onto an electrical cable.
Claim 8
Dependent Claim
132 words
In a grounding connector for electrical cable having a coaxially connectable pair of cylindrical members of electrically conductive material internally supporting an annular electrically conductive grounding means of radially contractable structure, with the pair of members internally containing means to radially contract the grounding means as a function of telescoping connecting movement of the pair of members, the improvement comprising: visual inspection means comprising internal shape characteristics of the pair of cylindrical members and of the means to radially contract the grounding means which together define a least diameter affording an unobstructed line of signt from one end of the pair of members to the radially inner portion of the grounding means after the pair of members have been telescopically connected to fully radially contract the grounding means onto an electrical cable.
References Cited (Backward Citations)
US3739076A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1983-07-22 | 1984-01-21 | 1984-07-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1987-07-22 | 1988-01-21 | 1988-07-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1991-07-22 | 1992-01-21 | 1992-07-22 | $7700.00 | Window Closed / Lapsed |