US3845449A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Cable shield clamp
Assignee: 3M Co
•
Filing: 1973-08-02
•
Granted: 1974-10-29
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Expires: 1993-08-02
Abstract
Abstract Two identically curved strips are intermeshed and bolted together to provide a circular clamp for making electrical connection with the ribbon shield of a power cable.
Inventors
- 👤 R Taylor
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 23:03
CPC Classifications
H; H01; H01R; H01R4/00; H01R4/58; H01R4/64; H01R4/646; H02; H02G; H02G15/00; H02G15/08; H02G15/10; H02G15/103; H02G15/105; Y; Y10; Y10T; Y10T24/00; Y10T24/14; Y10T24/1412; Y10T24/1441; Y10T24/1451; Y10T24/34; Y10T24/3427; Y10T24/3439; Y10T24/39; Y10T24/3958; Y10T24/3962; Y10T24/398
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
97 words
A clamp comprising a pair of rigidly resilient generally Lshaped electrically conductive metal plates each formed to provide a substantially flat centrally perforate end section, a curved central section of the same width as said end section, and a curved extension of slightly less than one-half of said width, the curved portions together extending over significantly more than one-half but less than three-fourths of a complete circle, the perforate end section being radially extended from said circle, the two pieces fitting together in face-to-face relationship with the curved portions terminally unconnected to define a circular clamping area.
Claim 2
Dependent Claim
97 words
A clamp comprising a pair of rigidly resilient generally Lshaped electrically conductive metal plates each formed to provide a substantially flat centrally perforate end section, a curved central section of the same width as said end section, and a curved extension of slightly less than one-half of said width, the curved portions together extending over significantly more than one-half but less than three-fourths of a complete circle, the perforate end section being radially extended from said circle, the two pieces fitting together in face-to-face relationship with the curved portions terminally unconnected to define a circular clamping area.
Claim 3
Dependent Claim
18 words
Clamp of claim 1 wherein said central section and said extension each extend over approximately 120* of arc.
Claim 4
Dependent Claim
14 words
Clamp of claim 1 wherein said curved extension is in two parallel parts bifurcate.
Claim 5
Dependent Claim
24 words
Clamp of claim 1 including fastening means applied through said perforate end sections for holding said pair of plates together in face-to-face interfitting relationship.
Claim 6
Dependent Claim
11 words
Clamp of claim 4 including electrically conductive jumper means attached thereto.
Claim 7
Dependent Claim
26 words
Clamp of claim 4 wherein one of said pair of plates includes a raised loop within the central section for solder connection with a jumper cable.
Claim 8
Dependent Claim
13 words
Clamp of claim 6 including a jumper cable segment soldered into said loop.
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) | 1977-10-28 | 1978-04-29 | 1978-10-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-10-28 | 1982-04-29 | 1982-10-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-10-28 | 1986-04-29 | 1986-10-29 | $7700.00 | Window Closed / Lapsed |