US4398074A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Low profile switch having a sealed interior
Assignee: Oak Industries Inc
•
Filing: 1981-06-12
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Granted: 1983-08-09
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Expires: 2001-06-12
Abstract
Abstract A low profile switch has a base with a contact pin extending through the base. The pin is press fit into a hole in the base such that the pin itself seals that hole. A movable contact including a central dome portion overlies the contact pin. The dome portion is movable into and out of contact with the pin. A gasket is disposed between the periphery of the movable contact and the base. A retainer clamps the movable contact against the gasket and urges the gasket into sealing engagement with the base to provide a sealed interior for the switch. The retainer has legs which are clinched on the under side of the base. A slidable button provides an actuating member.
Inventors
- 👤 David J. Danielson
- 👤 Bernard J. Golbeck
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 20:00
CPC Classifications
H; H01; H01H; H01H13/00; H01H13/02; H01H13/04; H01H13/06
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
75 words
An electric switch, comprising: a base; a pin contact extending in sealing relation through the base; a movable contact including a central dome portion in spaced, facing relation with the pin contact; a gasket between the periphery of the movable contact and the base; and retainer means urging the movable contact into sealing engagement with the gasket so as to completely seal the space between the dome portion of the movable contact and the base.
Claim 2
Dependent Claim
75 words
An electric switch, comprising: a base; a pin contact extending in sealing relation through the base; a movable contact including a central dome portion in spaced, facing relation with the pin contact; a gasket between the periphery of the movable contact and the base; and retainer means urging the movable contact into sealing engagement with the gasket so as to completely seal the space between the dome portion of the movable contact and the base.
Claim 3
Dependent Claim
28 words
The structure of claim 1 wherein the retainer means includes at least two legs extending through the base, the legs being clinched on the underside of the base.
Claim 4
Dependent Claim
23 words
The structure of claim 1 or 2 wherein the retainer means includes an electrical lead for providing electrical connection to the movable contact.
Claim 5
Dependent Claim
18 words
The structure of claim 1 or 2 wherein the movable contact and the retainer means are spot-welded together.
Claim 6
Dependent Claim
27 words
The structure of claim 1 further characterized in that the base has a bead in contact with the gasket to improve the sealing characteristic of the gasket.
Claim 7
Dependent Claim
34 words
The structure of claim 1 further including a button, slidably engaging the base and having an actuating member which depresses the movable contact member in response to pressure on the exterior of the button.
Claim 8
Dependent Claim
25 words
The structure of claim 1 further including a load-spreading device in the form of a rubber patch on the dome portion of the movable contact.
Claim 9
Dependent Claim
25 words
The structure of claim 1 further characterized in that the retainer means is attached to the base at points outside the periphery of the gasket.
References Cited (Backward Citations)
US2192296A
Cited
US2409483A
Cited
DE1059072B
Cited
US3041430A
Cited
US3087341A
Cited
US3908109A
Cited
US3982089A
Cited
US3996428A
Cited
US4056700A
Cited
US4145588A
Cited
US4217473A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1986-08-08 | 1987-02-07 | 1987-08-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1990-08-08 | 1991-02-07 | 1991-08-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1994-08-08 | 1995-02-07 | 1995-08-09 | $7700.00 | Window Closed / Lapsed |