Patent US3848956A successfully refreshed from Google Patents.
US3848956A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Self-sealing underground tap connector
Assignee: Fargo Mfg Co Inc
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Filing: 1974-02-04
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Granted: 1974-11-19
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Expires: 1994-02-04
Abstract
Abstract A connector for joining a high current capacity tap conductor to an unbroken run conductor in an underground application without removing the insulation from the run cable and which will provide a moistureproof seal at the points of connection of the tap conductor and run conductor.
Inventors
- 👤 R Kraft
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 12:58
CPC Classifications
H; H01; H01R; H01R4/00; H01R4/28; H01R4/38; H01R4/46; H01R4/24; H01R4/2404; H01R4/2408
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
271 words
A connector for joining a tap conductor to a run conductor in which said tap includes a spacer bar formed of a non-conducting material, first and second surfaces of said spacer bar, a slot formed in said spacer bar extending from said first to said second surface, a conductor bar disposed within said slot, first and second groups of piercing teeth formed on and extending from said conductor bar protruding from said slot at said first and second respective surfaces of said spacer bar, a first idler member of said tap, first non-electrical conducting idler teeth of said first idler member disposed in spaced relation with said first group of piercing teeth for receiving said cable therebetween, a second idler member of said tap, second nonelectrical conducting idler teeth of said second idler member disposed in spaced relation with said second group of piercing teeth for receiving said conductor therebetween pressure means for pressing said first group of piercing teeth and said first idler teeth and said second group of piercing teeth and said second idler teeth toward each other whereby said first and second groups of piercing teeth respectively pierce through the insulation of said run conductor and said tap conductor to produce a firm mechanical and electrical connection between said conductor bar and said run conductor and said tap conductor, and said first and second idler teeth respectively pierce through the insulation of said conductor and said line to produce a firm mechanical connection, and first, second, third and fourth insulation means respectively surrounding said first and second groups of piercing teeth and said first and second idler teeth.
Claim 2
Dependent Claim
271 words
A connector for joining a tap conductor to a run conductor in which said tap includes a spacer bar formed of a non-conducting material, first and second surfaces of said spacer bar, a slot formed in said spacer bar extending from said first to said second surface, a conductor bar disposed within said slot, first and second groups of piercing teeth formed on and extending from said conductor bar protruding from said slot at said first and second respective surfaces of said spacer bar, a first idler member of said tap, first non-electrical conducting idler teeth of said first idler member disposed in spaced relation with said first group of piercing teeth for receiving said cable therebetween, a second idler member of said tap, second nonelectrical conducting idler teeth of said second idler member disposed in spaced relation with said second group of piercing teeth for receiving said conductor therebetween pressure means for pressing said first group of piercing teeth and said first idler teeth and said second group of piercing teeth and said second idler teeth toward each other whereby said first and second groups of piercing teeth respectively pierce through the insulation of said run conductor and said tap conductor to produce a firm mechanical and electrical connection between said conductor bar and said run conductor and said tap conductor, and said first and second idler teeth respectively pierce through the insulation of said conductor and said line to produce a firm mechanical connection, and first, second, third and fourth insulation means respectively surrounding said first and second groups of piercing teeth and said first and second idler teeth.
Claim 3
Dependent Claim
41 words
A connector for joining a tap conductor to a run conductor in accordance with claim 1 in which said first and second insulation means are respectively the insulation of said run conductor and said tap conductor respectively embracing said spacer bar.
Claim 4
Dependent Claim
38 words
A connector for joining a tap connector to a run conductor in accordance with claim 1 in which said spacer bar is formed of an elastomeric material so that said conductor bar is maintained in floating relationship thereby.
Claim 5
Dependent Claim
40 words
A connector for joining a tap conductor to a run conductor in accordance with claim 1 in which said pressure means includes first and second clamp pads respectively embracing said cable and said line and drawn together by bolt means.
Claim 6
Dependent Claim
138 words
A connector for joining a tap conductor to a run conductor in accordance with claim 1 in which said first insulation means is a first elastomeric pad surrounding said first group of piercing teeth with a slot formed therein through which said teeth project with one side of said pad embracing the insulation of said main or run conductor and the remaining side thereof embracing said first surface, said second insulation means Is a like pad surrounding said second group of piercing teeth through which said teeth project with one side of said pad embracing the insulation of said tap conductor and the remaining side thereof embracing said second surface and said third and fourth insulation means respectively surround said first and second idler teeth embracing said run conductor and said tap conductor respectively and said pressure means.
Claim 7
Dependent Claim
51 words
A connector for joining a tap conductor to a run conductor in accordance with claim 5 in which said pressure means includes first and second clamp pads respectively embracing said run conductor and said tap conductor and said third and fourth insulation means respectively embrace said first and second clamp pads.
Claim 8
Dependent Claim
88 words
A connector for joining a tap conductor to a run conductor in accordance with claim 1 in which said piercing teeth can pierce the insulation of said cable and said tap conductor and are formed of a material which is softer than the conducting material of said run conductor and said tap conductor whereby said teeth can readily pierce the insulation without damaging the conducting material of said cable and said line and allowing said teeth to deform and embrace the conducting material thereby increasing the contact surface.
Claim 9
Dependent Claim
86 words
A connector for joining a tap conductor to a run conductor in accordance with claim 7 in which said idler teeth can pierce the insulation of said run conductor and said tap conductor and are formed of a material which is softer than the conducting material of said run conductor and said tap conductor whereby said teeth can readily pierce the insulation without damaging the conducting material of said run conductor and said tap conductor and allowing said teeth to deform and embrace the conducting material.
Claim 10
Dependent Claim
62 words
A connector for joining a line to a cable in accordance with claim 7 in which each of said first and second groups of teeth has a multiplicity of teeth with teeth of respective groups arranged in rows with teeth of respective rows arranged side by said in transverse orientation on either side of the longitudinal center line of the conductor bar.
Claim 11
Dependent Claim
46 words
A connector for joining a line to a cable in accordance with claim 9 so that the outer edges of adjacent teeth in each of said rows defines a line and the line so defined by each pair of teeth all lie in a single plane.
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) | 1977-11-18 | 1978-05-20 | 1978-11-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-11-18 | 1982-05-20 | 1982-11-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-11-18 | 1986-05-20 | 1986-11-19 | $7700.00 | Window Closed / Lapsed |