US4123630A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Safety device
Assignee: Individual
•
Filing: 1976-11-17
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Granted: 1978-10-31
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Expires: 1996-11-17
Abstract
Abstract A safety device to be used with a machine so as to have the operator keep both hands occupied during operation of the machine. The device includes a solenoid member having a core extension which blocks a first control element of the machine when the solenoid member is energized. The operator pushes a hand-operable switch and a hand-operable actuation member which in turn actuates a second control element.
Inventors
- 👤 Robert W. Mac Intyre
- 👤 Edward J. Wysocki
- 👤 Philip Orifice
- 👤 Ralph DiTillio
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 22:06
CPC Classifications
F; F16; F16P; F16P3/00; F16P3/18
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
124 words
A safety device to prevent inadvertent operation of a control element in a machine comprising: (a) a container (10) having an interior, transverse frame means (15); (b) a solenoid (13) spaced within said container (10) and having a longitudinally movable core extension (12), said core extension (12) extending through a slot (15a) in said transverse frame means and having means cooperable with the control element: (c) return spring means (14) associated with said core extension (12); (d) vertically movable plunger means (17) extending through an orifice (15a, 16a) in said transverse frame means; (e) return spring means 19 associated with said plunger means (17); and, (f) switch means (25, 26) connected to said solenoid (13) and requiring constand pressure to keep said solenoid energized.
Claim 2
Dependent Claim
124 words
A safety device to prevent inadvertent operation of a control element in a machine comprising: (a) a container (10) having an interior, transverse frame means (15); (b) a solenoid (13) spaced within said container (10) and having a longitudinally movable core extension (12), said core extension (12) extending through a slot (15a) in said transverse frame means and having means cooperable with the control element: (c) return spring means (14) associated with said core extension (12); (d) vertically movable plunger means (17) extending through an orifice (15a, 16a) in said transverse frame means; (e) return spring means 19 associated with said plunger means (17); and, (f) switch means (25, 26) connected to said solenoid (13) and requiring constand pressure to keep said solenoid energized.
Claim 3
Dependent Claim
32 words
The safety device of claim 1 wherein said core extension (12) has a lateral extension (12a) extending through a side slot (11b) in said container (10) and cooperating with the control element.
References Cited (Backward Citations)
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US2594520A
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US2669686A
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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) | 1981-10-30 | 1982-05-01 | 1982-10-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1985-10-30 | 1986-05-01 | 1986-10-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1989-10-30 | 1990-05-01 | 1990-10-31 | $7700.00 | Window Closed / Lapsed |