US4255633A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Push-pull switch operator
Assignee: Westinghouse Electric Corp
•
Filing: 1979-06-04
•
Granted: 1981-03-10
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Expires: 1999-06-04
Abstract
Abstract A push-pull switch operator characterized by separable contacts, a contact operating member, an actuating structure movable longitudinally to move said member, a guide adjacent the actuator for guiding the structure through longitudinal movement, the guide having a cam and the actuating structure having a cam follower, the cam follower being mounted on a spring biased slide for movement transversely of the longitudinal movement of the structure to effect push-pull momentary, push-pull maintained, and pull operation of the switch.
Inventors
- 👤 Robert J. Johnston
- 👤 Stephen G. Layciak
- 👤 George M. Cametti
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 21:40
CPC Classifications
H; H01; H01H; H01H15/00; H01H11/00; H01H11/0006; H01H11/0012; H01H2011/0043
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
129 words
A push-pull switch operator comprising seperable switch contacts, a contact operating member, a housing, an actuating structure movable longitudinally within the housing and between first and second positions for reciprocally moving the member, means resiliently urging said structure toward at least one of the first and second positions between the housing and said structure, the means comprising a collar yieldingly movable in a circumferential path about an outer peripheral surface of said structure, cam surface means fixedly mounted adjacent to the collar, a cam follower on the collar and engaging the cam surface means, the cam having a camming surface inclined to the longitudinal direction of movement of the structure, and bias means for biasing the cam follower against the camming surface to effect longitudinal movement of the structure.
Claim 2
Dependent Claim
129 words
A push-pull switch operator comprising seperable switch contacts, a contact operating member, a housing, an actuating structure movable longitudinally within the housing and between first and second positions for reciprocally moving the member, means resiliently urging said structure toward at least one of the first and second positions between the housing and said structure, the means comprising a collar yieldingly movable in a circumferential path about an outer peripheral surface of said structure, cam surface means fixedly mounted adjacent to the collar, a cam follower on the collar and engaging the cam surface means, the cam having a camming surface inclined to the longitudinal direction of movement of the structure, and bias means for biasing the cam follower against the camming surface to effect longitudinal movement of the structure.
Claim 3
Dependent Claim
24 words
The switch operator of claim 1 in which the cam follower is movable in a zone lateral of the longitudinal movement of the structure.
Claim 4
Dependent Claim
24 words
The switch operator of claim 2 in which the bias means comprising a spring operatively connected for urging the pin against the camming surface.
Claim 5
Dependent Claim
27 words
The switch operator of claim 3 in which the force of the spring moves the actuating structure longitudinally as the pin moves over the cam surface means.
Claim 6
Dependent Claim
31 words
The switch operator of claim 4 in which a guide is fixedly mounted adjacent to the actuator structure, and the guide comprises the cam in a position proximate to the pin.
Claim 7
Dependent Claim
23 words
The switch operator of claim 5 in which the guide comprises an interfitting part engaging with a corresponding interfitting part on the housing.
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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) | 1984-03-09 | 1984-09-08 | 1985-03-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1988-03-09 | 1988-09-08 | 1989-03-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1992-03-09 | 1992-09-08 | 1993-03-10 | $7700.00 | Window Closed / Lapsed |