Patent US3601748A successfully refreshed from Google Patents.
US3601748A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Coupling member for electrical distribution tracks
Assignee: British Lighting Industries Ltd
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Filing: 1969-05-26
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Granted: 1971-08-24
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Expires: 1989-05-26
Abstract
Abstract A coupling member, for connecting the ends of two lengths of electricity distribution track in which exposed track conductors are mounted, has a pair of conductive contact members which are resiliently mounted within a housing parallel to and insulated from one another, the coupling member being so constructed as to be capable of insertion into the adjacent ends of two lengths of track with contact fingers, provided on the contact members, biased into engagement with the track conductors.
Inventors
- 👤 Derek James Hart
- 👤 Robert Davis
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 13:06
CPC Classifications
H; H02; H02G; H02G5/00; H02G5/04; H01; H01R; H01R25/00; H01R25/14
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
132 words
A coupling member for connecting the ends of separate lengths of electricity distribution tracks which carry exposed trackconductors, the coupling member comprising: a housing, a pair of conductive contact members mounted parallel to and insulated from one another in said housing, track-locating projections on the external surfaces of said housing, said locating projections positioning the coupling member, when connected between two lengths of track, with its conductive contact members abutting the said track-conductors, and further projections located to abut the ends of the track conductors when the coupling member is in position for connecting twO lengths of track, whereby relative movement between the coupling member and the two lengths of track is transmitted to the track conductors to move them longitudinally away from the adjacent ends of the two lengths of track.
Claim 2
Dependent Claim
132 words
A coupling member for connecting the ends of separate lengths of electricity distribution tracks which carry exposed trackconductors, the coupling member comprising: a housing, a pair of conductive contact members mounted parallel to and insulated from one another in said housing, track-locating projections on the external surfaces of said housing, said locating projections positioning the coupling member, when connected between two lengths of track, with its conductive contact members abutting the said track-conductors, and further projections located to abut the ends of the track conductors when the coupling member is in position for connecting twO lengths of track, whereby relative movement between the coupling member and the two lengths of track is transmitted to the track conductors to move them longitudinally away from the adjacent ends of the two lengths of track.
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) | 1974-08-23 | 1975-02-22 | 1975-08-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-08-23 | 1979-02-22 | 1979-08-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-08-23 | 1983-02-22 | 1983-08-24 | $7700.00 | Window Closed / Lapsed |