Patent US4228885A successfully refreshed from Google Patents.
US4228885A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Coin operated electric timer automatic electric candle
Assignee: Individual
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Filing: 1979-01-29
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Granted: 1980-10-21
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Expires: 1999-01-29
Abstract
Abstract A coin operated electric lamp, including an electric circuit, having a plug for connection to a household electric power supply; the circuit including a switch activated by a deposited coin, so to close the circuit to an incandescent lamp bulb and to a motor in parallel to the lamp, the motor driving a spiral cam which, upon completing a rotation, pushes the switch into an open position so to stop the motor and turn out the light bulb.
Inventors
- 👤 Charles G. Cavalleri
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 21:54
CPC Classifications
G; G07; G07F; G07F17/00; G07F15/00; G07F15/12
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
72 words
A coin operated electric timer, comprising in combination, an upper and a lower case secured together, a coin slot in said cases receiving a coin, a pivoted lever tripped by said coin, a pivoted arm carrying two contacts, being pivoted by said lever so as to contact a pair of stationary contacts connected to a socket fitted with a lamp bulb, and said arm contacts being connected to a power source plug.
Claim 2
Dependent Claim
72 words
A coin operated electric timer, comprising in combination, an upper and a lower case secured together, a coin slot in said cases receiving a coin, a pivoted lever tripped by said coin, a pivoted arm carrying two contacts, being pivoted by said lever so as to contact a pair of stationary contacts connected to a socket fitted with a lamp bulb, and said arm contacts being connected to a power source plug.
Claim 3
Dependent Claim
66 words
The combination as set forth in claim 1, wherein an electric motor mounted under said lower case is in circuit with a switch and said power source plug, a gear train driven by motor, and a spiral cam rotated by said gear train, said cam being aligned with said arm for pivoting back to an original position with said arm contacts and stationary contacts being disengaged.
Claim 4
Dependent Claim
26 words
The combination as set forth in claim 2 wherein said lamp bulb is surrounded by a cylindrical lamp shade mounted on top of said upper case.
Claim 5
Dependent Claim
99 words
An electric timer comprising, in combination, a case, a pivoted arm carrying two contacts contained in said case, said pivoted arm having two stable states, and toggling means for pivoting, said pivoted arm between its two stable states such that said contacts are closed against a pair of stationary contacts in one state and open in the other state, and which further comprises a motor unit mounted on said case, which rotates a first cam and a second cam wherein said first cam stores energy in a spring means and said second cam releases energy in said spring means.
Claim 6
Dependent Claim
99 words
An electric timer comprising, in combination, a case, a pivoted arm carrying two contacts contained in said case, said pivoted arm having two stable states, and toggling means for pivoting, said pivoted arm between its two stable states such that said contacts are closed against a pair of stationary contacts in one state and open in the other state, and which further comprises a motor unit mounted on said case, which rotates a first cam and a second cam wherein said first cam stores energy in a spring means and said second cam releases energy in said spring means.
Claim 7
Dependent Claim
50 words
The combination as set forth in claim 4 wherein said spring means is coupled with said pivoted arm carrying two contacts in such a way that said contacts are held closed against said pair of stationary contacts until the energy in said spring means is released by said second cam.
Claim 8
Dependent Claim
31 words
The combination as set forth in claim 5 wherein the electrical energy operating said motor unit is interrupted when said contacts are opened, thereby causing said motor unit to stop running.
References Cited (Backward Citations)
US3174024A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1983-10-21 | 1984-04-21 | 1984-10-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1987-10-21 | 1988-04-21 | 1988-10-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1991-10-21 | 1992-04-21 | 1992-10-21 | $7700.00 | Window Closed / Lapsed |