US3852557A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electric switch with pivoting and wiping movable contractor
Assignee: Cutler Hammer Inc
•
Filing: 1973-07-12
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Granted: 1974-12-03
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Expires: 1993-07-12
Abstract
Abstract A contact wiping device utilizes compound rocking motion to shear and otherwise break welds between a set of contacts. A contactor support is rockably mounted upon the stage portion of a neutral terminal, and a ''''V-shaped'''' movable contactor is thereupon rockably mounted. A spring loaded toggle lever actuator engages and directly bears upon the movable contactor to rock the contactor on the actuator support into selected circuit positions. After initial contact make, a lost motion connection between the actuator and contactor support is thereafter utilized to enable the actuator to begin rocking the support under the movable contactor thereby imparting compound rocking action to the contactor to shear and otherwise break any welds between the fixed contact and contactor.
Inventors
- 👤 H Brown
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 20:53
CPC Classifications
H; H01; H01H; H01H3/00; H01H3/001; H01H23/00; H01H23/28; H01H23/02; H01H23/12; H01H23/16; H01H23/166; H01H23/168
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
119 words
In an electric switch, in combination: an insulating housing, a plurality of stationary contacts mounted in spaced relation in said housing, a rigid movable contactor support member in circuit with and mounted in limited lateral rocking relation on one of said stationary contacts, a movable contactor pivotably mounted on said support member to selectively engage with the other of said stationary contacts, and operating means comprising an actuating member for sliding on and pivoting said contactor into engagement with said other of said stationary contacts and having lost motion driving connections with said support member to engage with and rock said support member to slide said contactor on each of said other of said stationary contacts following engagement therewith.
Claim 2
Dependent Claim
119 words
In an electric switch, in combination: an insulating housing, a plurality of stationary contacts mounted in spaced relation in said housing, a rigid movable contactor support member in circuit with and mounted in limited lateral rocking relation on one of said stationary contacts, a movable contactor pivotably mounted on said support member to selectively engage with the other of said stationary contacts, and operating means comprising an actuating member for sliding on and pivoting said contactor into engagement with said other of said stationary contacts and having lost motion driving connections with said support member to engage with and rock said support member to slide said contactor on each of said other of said stationary contacts following engagement therewith.
Claim 3
Dependent Claim
42 words
A switch according to claim 1 wherein said one of said stationary contacts includes a stage portion and a pedestal portion generally normal thereto and wherein said movable contactor support member is provided with an opening to register about said pedestal portion.
Claim 4
Dependent Claim
48 words
A switch according to claim 2 wherein said contactor support member includes a shoulder and an elongated neck extending generally normal thereto and wherein said movable contactor is a generally rigid V-shaped conductive strip adapted to seat and rock about the base of said neck on said shoulder.
Claim 5
Dependent Claim
82 words
A switch according to claim 3 wherein said operating means includes a manual toggle lever assembly captured externally of said switch base and a spring-biased actuator opposite thereto within said base for bearing against and sliding on said V-shaped strip, and wherein said lost motion driving connection between said actuating member and said contactor support member comprises spaced projection means on said actuating member for engaging said elongated neck means on said support member upon moving said actuating member a preselected distance.
References Cited (Backward Citations)
US3117197A
Cited
US3106622A
Cited
US3165611A
Cited
US3230334A
Cited
US3312800A
Cited
US3521013A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-12-02 | 1978-06-03 | 1978-12-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-12-02 | 1982-06-03 | 1982-12-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-12-02 | 1986-06-03 | 1986-12-03 | $7700.00 | Window Closed / Lapsed |