Patent US4704656A successfully refreshed from Google Patents.
US4704656A
Expired / Lapsed
US
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Fiber optic wiring device control system
Assignee: Leviton Manufacturing Co Inc
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Filing: 1986-10-27
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Granted: 1987-11-03
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Expires: 2006-10-27
Abstract
Abstract The present invention teaches a control system wherein fiber optics controls the functioning of one or more types of wiring devices, such as a wall receptacle. With the use of the present invention, a relatively safer system is provided for use in wet, hospital, explosive and other environments, and which is capable of surface mounting. Switch and load supply assemblies are interconnected by fiber optic means for transmitting reflected signals from a movable mirror to a photocell-influenced relay circuit.
Inventors
- 👤 Benjamin B. Neiger
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 16:52
CPC Classifications
H; H01; H01H; H01H47/00; H01H47/22; H01H47/24
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
120 words
A system for controlling a wiring device, or the like, comprising, in combination: a load supply assembly, and a switch assembly, said load supply assembly including a support housing, a source of light disposed within said housing, a photoelectric sensor, relay means response to said photoelectric sensor for closing a current carrying circuit, said switch assembly including a switch housing, a reflective surface movably supported by said switch housing, means for moving said reflective surface between on and off positions, said control system further comprising fiber optic means communicating with both said load supply and switch assemblies for transmitting light from said source to said reflective surface and back to said load supply assembly for controlling said current carrying circuit.
Claim 2
Independent Claim
120 words
A system for controlling a wiring device, or the like, comprising, in combination: a load supply assembly, and a switch assembly, said load supply assembly including a support housing, a source of light disposed within said housing, a photoelectric sensor, relay means response to said photoelectric sensor for closing a current carrying circuit, said switch assembly including a switch housing, a reflective surface movably supported by said switch housing, means for moving said reflective surface between on and off positions, said control system further comprising fiber optic means communicating with both said load supply and switch assemblies for transmitting light from said source to said reflective surface and back to said load supply assembly for controlling said current carrying circuit.
Claim 3
Dependent Claim
31 words
A system according to claim 1, wherein said load supply assembly further includes a mirror capable of transmitting light therethrough disposed between said source of light and said fiber optic means.
Claim 4
Dependent Claim
42 words
A system according to claim 2, wherein said mirror is capable of permitting light from said source to reach said fiber optic means and of reflecting light transmitted back from said switch assembly to said load supply assembly towards said photoelectric sensor.
Claim 5
Dependent Claim
22 words
A system according to claim 3, further comprising a lens for influencing light from said mirror before it reaches said photoelectric sensor.
Claim 6
Dependent Claim
22 words
A system according to claim 1, wherein said load supply assembly includes a relay and a supply of power for said relay.
Claim 7
Dependent Claim
29 words
A system according to claim 5, wherein said load supply assembly further includes power output conductors capable of supplying power when said reflective surface is in said on position.
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) | 1990-11-02 | 1991-05-04 | 1991-11-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1994-11-02 | 1995-05-04 | 1995-11-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1998-11-02 | 1999-05-04 | 1999-11-03 | $7700.00 | Window Closed / Lapsed |