Patent US4059897A successfully refreshed from Google Patents.
US4059897A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of joining thin and thick switch members
Assignee: Robertshaw Controls Co
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Filing: 1976-10-22
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Granted: 1977-11-29
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Expires: 1996-10-22
Abstract
Abstract A joint construction of two members each having one surface thereof disposed against a surface of the other member. One of the members has a part thereof punched through an unblanked part of the other member beyond the other surface of the other member, the part of the one member being subsequently staked to the other surface of the other member to secure the members together.
Inventors
- 👤 Edgar E. Marquis
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 16:58
CPC Classifications
B; B21; B21K; B21K25/00; B21D; B21D39/00; B21D39/03; B21D39/035; H; H01; H01H; H01H11/00; H01H11/04; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49002; Y10T29/49105; Y10T29/49826; Y10T29/49833; Y10T29/49835; Y10T29/49908; Y10T29/49936; Y10T29/49938
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
135 words
A method of joining a relatively thin metal switch blade member to a relatively thick terminal member to form as assembly for an electrical switch comprising the steps of disposing one surface of said terminal member against one surface of one end of the switch blade member, punching a part of said terminal member through an unblanked part of said one surface of said one end of said switch blade member so that said part of said terminal member extends beyond the opposed surface of said switch blade member, and staking said part of said terminal member to said opposed surface of said switch blade member to secure said members together whereby the other end of said switch blade member is carried in cantilevered fashion by said terminal member to perform a contact switching function.
Claim 2
Independent Claim
135 words
A method of joining a relatively thin metal switch blade member to a relatively thick terminal member to form as assembly for an electrical switch comprising the steps of disposing one surface of said terminal member against one surface of one end of the switch blade member, punching a part of said terminal member through an unblanked part of said one surface of said one end of said switch blade member so that said part of said terminal member extends beyond the opposed surface of said switch blade member, and staking said part of said terminal member to said opposed surface of said switch blade member to secure said members together whereby the other end of said switch blade member is carried in cantilevered fashion by said terminal member to perform a contact switching function.
Claim 3
Dependent Claim
29 words
A method as set forth in claim 1 wherein said step of staking comprises the step of compressing said part of said terminal member between the opposed sides thereof.
Claim 4
Dependent Claim
35 words
A method as set forth in claim 1 wherein said punching step causes said unblanked part of said switch blade member to be blanked and pushed beyond said opposed surface of said switch blade member.
Claim 5
Dependent Claim
27 words
A method as set forth in claim 3 wherein said step of staking comprises the step of compressing said parts of said members between opposed sides thereof.
Claim 6
Dependent Claim
45 words
A method as set forth in claim 3 wherein said punching step causes said part of said terminal member to be sheared along opposed sides thereof from said terminal member while remaining interconnected to said terminal member at the opposed ends of said one member.
Claim 7
Dependent Claim
28 words
A method as set forth in claim 5 wherein said punching step causes said part of said terminal member to be substantially a truncated triangular configuration in cross-section.
Claim 8
Dependent Claim
33 words
A method as set forth in claim 6 wherein said punching step causes said part of said switch blade member to be formed similar in configuration to said part of said terminal member.
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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) | 1980-11-28 | 1981-05-30 | 1981-11-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-11-28 | 1985-05-30 | 1985-11-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-11-28 | 1989-05-30 | 1989-11-29 | $7700.00 | Window Closed / Lapsed |