US4536953A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Switching mechanism and method of making same
Assignee: MDH Co Inc
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Filing: 1983-10-31
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Granted: 1985-08-27
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Expires: 2003-10-31
Abstract
Abstract A slide-type electrical switching mechanism has a contact plate with a plurality of frangible portions interconnecting discrete electrical contacts. The plate is securred to the non-conducting slider housing by deforming portions of the housing over the plate. The frangible portions are then punched out to form a plurality of discrete contacts for switching. The plate has contact connectors formed integrally therewith.
Inventors
- 👤 Dennis De Vera
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 14:56
CPC Classifications
H; H01; H01H; H01H11/00; H01H11/0056; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49002; Y10T29/49105
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
81 words
A method of manufacturing an electrical switch comprising: (a) providing a base of electrically insulating material; (b) positioning and retaining on said base a plate of electrically conducting material having a plurality of individual contact forming regions thereon interconnected by frangible portions; (c) breaking away said frangible portions and forming on said strip a plurality of electrically isolated contacts; and, (d) assembling on said base a wiper means moveable thereon for making and breaking contact between a plurality of said contacts.
Claim 2
Independent Claim
81 words
A method of manufacturing an electrical switch comprising: (a) providing a base of electrically insulating material; (b) positioning and retaining on said base a plate of electrically conducting material having a plurality of individual contact forming regions thereon interconnected by frangible portions; (c) breaking away said frangible portions and forming on said strip a plurality of electrically isolated contacts; and, (d) assembling on said base a wiper means moveable thereon for making and breaking contact between a plurality of said contacts.
Claim 3
Dependent Claim
37 words
The method defined in claim 1, wherein said step of providing includes forming said base of plastic material, and said step of positioning and retaining comprises heating and deforming portions of said plastic material over said strip.
Claim 4
Dependent Claim
25 words
The method defined in claim 1, wherein said step of positioning and retaining includes the step of deforming portions of said base over said plate.
Claim 5
Dependent Claim
37 words
The method defined in claim 1, wherein said step of providing includes forming said base of thermoplastic material and said step of positioning and retaining includes heating and deforming portions of said thermoplastic material over said plate.
Claim 6
Dependent Claim
33 words
The method in claim 1, wherein said step of positioning and retaining includes passing connector portions of said plate through apertures in said base and deforming portions of said base over said plate.
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) | 1988-08-26 | 1989-02-25 | 1989-08-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1992-08-26 | 1993-02-25 | 1993-08-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1996-08-26 | 1997-02-25 | 1997-08-27 | $7700.00 | Window Closed / Lapsed |