Patent US3569653A successfully refreshed from Google Patents.
US3569653A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electrical contact and contact assembly
Assignee: Engelhard Minerals and Chemicals Corp
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Filing: 1969-01-31
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Granted: 1971-03-09
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Expires: 1989-01-31
Abstract
Abstract A contact assembly including a rivet type contact having a metal head and a metal shank with a portion of the shank at the free end thereof composed of a metal solder having a lower melting point than the metal of the head and the metal of the remaining portion of the shank. The shank of the contact passing through an aperture of a support arm and staked into an abutment relationship therewith. A portion of the solder from the staked portion extending into the aperture of the arm between the shank and the aperture wall forming a solder joint therebetween.
Inventors
- 👤 John R Cockshutt
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 10:51
CPC Classifications
H; H01; H01H; H01H11/00; H01H11/04; H01H11/041; H01H11/045
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
56 words
An electrical contact of the rivet type comprising a metal head and a metal shank joined to the head with a portion of the shank at the free end thereof composed of a metal solder having a lower melting point than the metal of the head and the metal of the shank portion adjacent the head.
Claim 2
Dependent Claim
56 words
An electrical contact of the rivet type comprising a metal head and a metal shank joined to the head with a portion of the shank at the free end thereof composed of a metal solder having a lower melting point than the metal of the head and the metal of the shank portion adjacent the head.
Claim 3
Dependent Claim
37 words
An electrical contact according to claim 1, wherein the head is a bimetallic head having a surface layer of contact metal and a backing layer of another metal, the shank being joined to the sAid backing layer.
Claim 4
Dependent Claim
143 words
An electrical contact assembly comprising an electrical contact of the rivet type having a metal head and a metal shank joined to the head with a portion of the shank at the free end thereof composed of a metal solder having a lower melting point than the metal of the head and the metal of the shank portion adjacent the head, a metal arm having an aperture therethrough defined by an aperture wall, the shank of the rivet passing through the aperture with the head abutting one side of the arm adjacent the aperture, the free end solder portion of the shank being staked in abutment with the opposite side of the arm adjacent the aperture, and a portion of the solder from the staked free-end portion extending into the aperture between the shank and the aperture wall forming a solder joint therebetween.
Claim 5
Dependent Claim
143 words
An electrical contact assembly comprising an electrical contact of the rivet type having a metal head and a metal shank joined to the head with a portion of the shank at the free end thereof composed of a metal solder having a lower melting point than the metal of the head and the metal of the shank portion adjacent the head, a metal arm having an aperture therethrough defined by an aperture wall, the shank of the rivet passing through the aperture with the head abutting one side of the arm adjacent the aperture, the free end solder portion of the shank being staked in abutment with the opposite side of the arm adjacent the aperture, and a portion of the solder from the staked free-end portion extending into the aperture between the shank and the aperture wall forming a solder joint therebetween.
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) | 1974-03-08 | 1974-09-07 | 1975-03-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-03-08 | 1978-09-07 | 1979-03-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-03-08 | 1982-09-07 | 1983-03-09 | $7700.00 | Window Closed / Lapsed |