Patent US4624049A successfully refreshed from Google Patents.
US4624049A
Expired / Lapsed
US
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Switch actuator assembly
Assignee: Illinois Tool Works Inc
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Filing: 1985-05-23
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Granted: 1986-11-25
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Expires: 2005-05-23
Abstract
Abstract A switch actuator assembly comprises an insulating base and an insulating retainer assembled therewith. A switch contact assembly initially includes at least a first contact and a second contact interconnected by an integral narrow strip of sheet metal. The base and retainer are provided with an integral punch and die, and during assembly of the switch contact assembly with the base and the retainer the punch and die sever the connecting strip so that the first and second contacts are thereafter electrically isolated. During such severing the strip is deflected from its initial plane to augment the electrical isolation.
Inventors
- 👤 Fred Levko
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 23:17
CPC Classifications
H; H01; H01H; H01H11/00; H01H11/0056; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49002; Y10T29/49105; Y10T29/49789; Y10T29/49792; Y10T29/49799
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
123 words
The method of producing a switch actuator assembly which comprises providing an insulating base having first severing means thereon, assembling a sheet metal switch contact assembly with said base, said switch contact assembly having electrically conductive first and second switch contact means integrally interconnected by a severable area, positioning said switch contact assembly with said severable area adjacent said first severing means, and assembling insulating retainer means with said base and said switch contact assembly, said retainer means including second severing means, and during assembly of said retainer means with said base and said switch contact assembly utilizing said first and second severing means to sever said severable area electrically to isolate said first and said second switch contact means from one another.
Claim 2
Independent Claim
123 words
The method of producing a switch actuator assembly which comprises providing an insulating base having first severing means thereon, assembling a sheet metal switch contact assembly with said base, said switch contact assembly having electrically conductive first and second switch contact means integrally interconnected by a severable area, positioning said switch contact assembly with said severable area adjacent said first severing means, and assembling insulating retainer means with said base and said switch contact assembly, said retainer means including second severing means, and during assembly of said retainer means with said base and said switch contact assembly utilizing said first and second severing means to sever said severable area electrically to isolate said first and said second switch contact means from one another.
Claim 3
Dependent Claim
42 words
The method as set forth in claim 1 and further including positioning at least one of said first and second severing means between the severed portions of said severable area for electrical isolation of said first and said second switch contact means.
Claim 4
Dependent Claim
21 words
The method as set forth in claim 2 and further including deflecting a severed area as an incident to severing thereof.
Claim 5
Dependent Claim
21 words
The method as set forth in claim 1 and further including deflecting a severed area as an incident to severing thereof.
References Cited (Backward Citations)
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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) | 1989-11-24 | 1990-05-26 | 1990-11-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1993-11-24 | 1994-05-26 | 1994-11-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1997-11-24 | 1998-05-26 | 1998-11-25 | $7700.00 | Window Closed / Lapsed |