US3740510A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Contactor with improved contact means
Assignee: Westinghouse Electric Corp
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Filing: 1971-04-21
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Granted: 1973-06-19
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Expires: 1991-04-21
Abstract
Abstract A contactor comprises improved contact means. The stationary contact structure comprises a conducting support with a contact and arc-runner supported thereon such that the arcs leaving the stationary contact move directly onto the arc-runner. The stationary contact structure is constructed to facilitate removable mounting thereof on a conductor. A metallic shield member is provided to protect the insulating material of the insulating contact carrier from the heat and impact of the bridging contact structure.
Inventors
- 👤 K Grunert
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 12:48
CPC Classifications
H; H01; H01H; H01H50/00; H01H50/54; H01H50/546; H01H9/00; H01H9/30; H01H9/44; H01H9/446; H01H9/46
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
170 words
A contactor comprising an insulating contact carrier, a bridging contact structure, spring support means supporting said bridging contact structure on said insulating contact carrier, a metallic heat sink separate from said spring support means supported on said insulating contact carrier in a position interposed between said insulating contact carrier and said bridging contact structure, said insulating contact carrier comprising a tubular part, said bridging contact structure being an elongated structure supported at one end of said tubular part across the opEning of said tubular part, said metallic heat sink comprising a generally U-shaped part and a pair of flange parts extending outward from the opposite legs of said U-shaped part, said metallic heat sink being positioned on said tubular part with the U-shaped part thereof being disposed in said tubular part and with said flange parts being positioned on the end surface of said tubular part, and said spring support means biasing said elongated bridging contact structure against said flange portions in the open position of said bridging contact structure.
Claim 2
Dependent Claim
170 words
A contactor comprising an insulating contact carrier, a bridging contact structure, spring support means supporting said bridging contact structure on said insulating contact carrier, a metallic heat sink separate from said spring support means supported on said insulating contact carrier in a position interposed between said insulating contact carrier and said bridging contact structure, said insulating contact carrier comprising a tubular part, said bridging contact structure being an elongated structure supported at one end of said tubular part across the opEning of said tubular part, said metallic heat sink comprising a generally U-shaped part and a pair of flange parts extending outward from the opposite legs of said U-shaped part, said metallic heat sink being positioned on said tubular part with the U-shaped part thereof being disposed in said tubular part and with said flange parts being positioned on the end surface of said tubular part, and said spring support means biasing said elongated bridging contact structure against said flange portions in the open position of said bridging contact structure.
Claim 3
Dependent Claim
67 words
A contactor according to claim 1, said tubular part having ledge means therein, and said metallic heat sink comprising resilient tang means cooperable with said ledge means such that said heat sink is mounted on said tubular part by being forced into the mounted position thereof with said resilient tang means automatically cooperating with said ledge means to retain said metallic heat sink in the mounted position.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-06-18 | 1976-12-18 | 1977-06-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-06-18 | 1980-12-18 | 1981-06-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-06-18 | 1984-12-18 | 1985-06-19 | $7700.00 | Window Closed / Lapsed |