Patent US4144420A successfully refreshed from Google Patents.
US4144420A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Automatic light switching system
Assignee: Individual
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Filing: 1977-11-26
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Granted: 1979-03-13
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Expires: 1997-11-26
Abstract
Abstract An automatic light switching system including a receptacle for an automatic timer whereby the circuit including the receptacle will be operated in response to predetermined settings of the timer. A manual on-off switch is also included so that the circuit can be operated independently of the timer. The light switching system specifically comprises a modification for the circuit's wiring and an adapter whereby standard, commercially-available timers may be utilized to regulate the circuit's operation in predetermined fashion.
Inventors
- 👤 Raymond N. Phillips
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 06:32
CPC Classifications
H; H01; H01H; H01H43/00; H01H43/02; H01H43/022
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
217 words
An automatic light switching system of the type primarily intended for use in operating an electrical light circuit, said switching system comprising, in combination: a receptacle electrically connected to the circuit to be operated, said receptacle comprising a manual switch and an outlet; wherein said outlet comprises a first receiver which is electrically connected to the energized side of the circuit to be operated and a second receiver disposed in predetermined, spaced relation to said first receiver, said second receiver being connected to the circuit to be operated, whereby making an electrical contact across said first and second receivers will energize the circuit; a plug-in automatic timer comprising an output receptacle disposed thereon and a removable adapter attachable to said output receptacle in interconnecting, conductive relation between said timer output receptacle and said outlet; wherein said adapter comprises an insulated conductor, one end of said conductor comprising a first male connector removably attachable to said output receptacle and the other end of said conductor comprising a second male connector removably attachable to said second receiver, said adaptor utilized to convert a conventional wall plug timer, which completes a circuit to an appliance at predetermined intervals to a timer which completes the circuit to be operated at predetermined intervals when said manual switch is in the off position.
Claim 2
Dependent Claim
217 words
An automatic light switching system of the type primarily intended for use in operating an electrical light circuit, said switching system comprising, in combination: a receptacle electrically connected to the circuit to be operated, said receptacle comprising a manual switch and an outlet; wherein said outlet comprises a first receiver which is electrically connected to the energized side of the circuit to be operated and a second receiver disposed in predetermined, spaced relation to said first receiver, said second receiver being connected to the circuit to be operated, whereby making an electrical contact across said first and second receivers will energize the circuit; a plug-in automatic timer comprising an output receptacle disposed thereon and a removable adapter attachable to said output receptacle in interconnecting, conductive relation between said timer output receptacle and said outlet; wherein said adapter comprises an insulated conductor, one end of said conductor comprising a first male connector removably attachable to said output receptacle and the other end of said conductor comprising a second male connector removably attachable to said second receiver, said adaptor utilized to convert a conventional wall plug timer, which completes a circuit to an appliance at predetermined intervals to a timer which completes the circuit to be operated at predetermined intervals when said manual switch is in the off position.
Claim 3
Dependent Claim
34 words
An automatic light switching system as in claim 1 wherein said timer comprises a first prong removably insertable into said first receiver in electrical contact therewith, whereby electricity to operate said timer is received.
Claim 4
Dependent Claim
34 words
An automatic light switching system as in claim 2 wherein said output receptacle comprises a source of electricity, said output receptacle being electrically connected to and regulated by the timing circuit of said timer.
Claim 5
Dependent Claim
60 words
An automatic light switching system as in claim 1 further comprising a bridge removably disposable in electrical conducting relation between adjacent ones of said receptacle, said bridge including a bridge outlet thereon, whereby a single one of said timer and said adapter may be attached to said bridge outlet to operate the circuits of said adjacent ones of said receptacle.
Claim 6
Dependent Claim
26 words
An automatic light switching system as in claim 1 wherein said switch comprises an on-off switch, whereby the circuit may be energized independently of said timer.
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) | 1982-03-12 | 1982-09-11 | 1983-03-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1986-03-12 | 1986-09-11 | 1987-03-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1990-03-12 | 1990-09-11 | 1991-03-13 | $7700.00 | Window Closed / Lapsed |