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US3639709A Expired / Lapsed US ⏱️ 0.0 years remaining

Output adaptor for electric distribution tracks

Assignee: British Lighting Industries Ltd
•
Filing: 1969-05-26
•
Granted: 1972-02-01
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Expires: 1989-05-26
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Abstract

Abstract An output adapter intended for use with electricity distribution tracks provided with exposed track conductors has an on-off switch and a resilient clamp which can be moved outwardly from the adapter to engage a track and lock the adapter thereto in a position in which the contacts of said switch can be moved to the ''''on'''' position in abutment with the track conductors.

Inventors

  • 👤 Derek James Hart
  • 👤 Robert Davis

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-03 11:11
CPC Classifications
H; H01; H01R; H01R25/00; H01R25/14; H01R25/142

Claims Analysis

Total Claims: 3
Claim 1
Independent Claim 180 words
An output adapter for use for electricity distribution tracks in which exposed track conductors are mounted, the output adapter comprising: a housing, a clamping arrangement carried by said housing, the clamping arrangement having a pair of movable tongues, a separately operable switch secured within said housing having at least one contact movable from an inner to an outer position, whereby outward movement of said Tongues into engagement with the track clamps said housing to the track with the contacts of said switch located for abutment with the track conductors upon movement to the said outer position, said switch being of the double-pole type and including a pair of rocker elements mounted in said housing and carrying the said contacts, the rocker elements being movable between an outer ''''on'''' position, in which the contacts project from the housing, and an inner ''''off'''' position, a generally elliptical cam mounted in said housing and in engagement with said rocker elements, and means supported on said housing to move said cam and thereby move both rocker elements simultaneously between the ''''on'''' and ''''off'''' positions.
Claim 2
Dependent Claim 180 words
An output adapter for use for electricity distribution tracks in which exposed track conductors are mounted, the output adapter comprising: a housing, a clamping arrangement carried by said housing, the clamping arrangement having a pair of movable tongues, a separately operable switch secured within said housing having at least one contact movable from an inner to an outer position, whereby outward movement of said Tongues into engagement with the track clamps said housing to the track with the contacts of said switch located for abutment with the track conductors upon movement to the said outer position, said switch being of the double-pole type and including a pair of rocker elements mounted in said housing and carrying the said contacts, the rocker elements being movable between an outer ''''on'''' position, in which the contacts project from the housing, and an inner ''''off'''' position, a generally elliptical cam mounted in said housing and in engagement with said rocker elements, and means supported on said housing to move said cam and thereby move both rocker elements simultaneously between the ''''on'''' and ''''off'''' positions.
Claim 3
Dependent Claim 18 words
The combination of claim 1 and spring means to bias the said rocker elements into the ''''off'''' position.

References Cited (Backward Citations)

US2938971A Cited
US3286052A Cited
US3395378A Cited
US3503032A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1975-01-31 1975-08-02 1976-02-01 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1979-01-31 1979-08-02 1980-02-01 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1983-01-31 1983-08-02 1984-02-01 $7700.00 Window Closed / Lapsed

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