Patent US3924085A successfully refreshed from Google Patents.
US3924085A
Expired / Lapsed
US
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Safety-start device and circuit controller for domestic appliance
Assignee: General Electric Co
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Filing: 1974-03-18
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Granted: 1975-12-02
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Expires: 1994-03-18
Abstract
Abstract A safety-start device for a domestic appliance insures that upon opening of the access door thereof, operation of the appliance will cease and will not automatically start again upon closing the door. Included is a switch mounted on the appliance cabinet in axial alignment with a manually operated actuating member secured to the access door. Means are included for latching the actuating member such that when the actuating member is depressed, it moves in a direction coaxially with the switch member so as to actuate the switch, becoming latched in the switch actuated position until such time as the access door is opened. The switch is in circuit with the operational components of the appliance and prevents their operation until actuated by the intentional manual operation of the actuating member.
Inventors
- 👤 Aidan M Stone
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 21:12
CPC Classifications
D; D06; D06F; D06F37/00; D06F37/42
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
181 words
In an appliance having a body including an access opening and a closure therefor, a safety-start device comprising: a switch having an opening and supported within the appliance body for preventing operation of the appliance unless the switch is intentionally actuated; an actuating member supported on the closure and free to move back and forth normal to the closure and relative thereto, said actuating member being in co-axial alignment with an inserted into the switch opening when the closure is in its closed position such that auxiliary movement of the actuating member axially inward toward the switch and relative to the closure actuates the switch to allow operation of the appliance and completely removable from the switch when the closure is in its open position; and means in the safety-start device for latching the actuating member with the switch and retaining it therein when in its axially inward position thereby maintaining the switch in its actuated state until the closure is opened whereupon the actuating member is moved relative to the closure and separated from the switch and the switch unactuated.
Claim 2
Dependent Claim
181 words
In an appliance having a body including an access opening and a closure therefor, a safety-start device comprising: a switch having an opening and supported within the appliance body for preventing operation of the appliance unless the switch is intentionally actuated; an actuating member supported on the closure and free to move back and forth normal to the closure and relative thereto, said actuating member being in co-axial alignment with an inserted into the switch opening when the closure is in its closed position such that auxiliary movement of the actuating member axially inward toward the switch and relative to the closure actuates the switch to allow operation of the appliance and completely removable from the switch when the closure is in its open position; and means in the safety-start device for latching the actuating member with the switch and retaining it therein when in its axially inward position thereby maintaining the switch in its actuated state until the closure is opened whereupon the actuating member is moved relative to the closure and separated from the switch and the switch unactuated.
Claim 3
Dependent Claim
13 words
The safety-start device of claim 1 wherein the appliance is a clothes dryer.
Claim 4
Dependent Claim
47 words
The safety-start device of claim 2 wherein the switch has fixed contacts and is mounted on a door jamb of the dryer body and further comprises a spring loaded contact member in co-axial alignment with and operated by the actuating member for effecting actuation of the switch.
Claim 5
Dependent Claim
31 words
The safety-start device of claim 3 wherein the switch is of the normally-open type, and upon actuation becomes closed to alloW energization of a circuit for effecting operation of the dryer.
Claim 6
Dependent Claim
88 words
The safety-start device of claim 4 wherein the means for latching includes a spring loaded detent member supported on the actuating member and positioned to cooperate with a closure locking handle movably secured to the closure such that the detent latches the actuating member when said member is moved axially inwardly and the closure is in its closed and locked position, and upon the unlocking of the closure, the detent member is unlatched allowing the actuating member and thereby the switch to return to their respective unactuated positions.
Claim 7
Dependent Claim
45 words
The safety-start device of claim 1 wherein the means for latching comprises at least one resilient detent member and is mounted on a door jamb of the appliance body and associated with the switch for engaging the actuating member when in its axially inward position.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1978-12-01 | 1979-06-02 | 1979-12-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-12-01 | 1983-06-02 | 1983-12-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-12-01 | 1987-06-02 | 1987-12-02 | $7700.00 | Window Closed / Lapsed |