US4137116A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of making a pressure switch
Assignee: MILLER NORMAN K
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Filing: 1977-04-22
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Granted: 1979-01-30
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Expires: 1997-04-22
Abstract
Abstract A pressure switch and method of manufacture wherein a resiliently yieldable intermediate open layer is sandwiched between flexible conductive layers, all of which is enclosed between flexible outer layers, so that in the unstressed or relatively unstressed condition the contact layers are spaced apart by the intermediate layer, while flexure or other sufficient stressing of the assembly effects contact of the contact layers through the open intermediate layer.
Inventors
- 👤 Norman K. Miller
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 10:51
CPC Classifications
H; H01; H01H; H01H3/00; H01H3/02; H01H3/14; H01H3/141; Y; Y10; Y10T; Y10T156/00; Y10T156/10; Y10T156/1052; Y10T156/1084; Y10T156/1089; Y10T156/1092; Y10T156/1093; Y10T156/1095; Y10T156/1097; Y10T29/00; Y10T29/49; Y10T29/49002; Y10T29/49105; Y10T29/49117; Y10T428/00; Y10T428/23; Y10T428/234; Y10T428/24; Y10T428/24149; Y10T428/24273; Y10T428/24322; Y10T428/24331; Y10T428/24777; Y10T428/24793; Y10T428/24802; Y10T428/24843; Y10T428/24917; Y10T428/249921; Y10T428/249953; Y10T428/249987; Y10T428/24999
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
134 words
In the manufacture of flexible switch means, the steps which comprise: continuously feeding an intermediate open work web of resiliently yieldable sealable insulating material, continuously feeding a pair of flexible conductive webs of less width than and into facing relation with opposite faces of said open work web simultaneously with feeding of the latter, simultaneously feeding a pair of flexible non-conductive sealable outer webs of greater width than and into facing relation with opposite outer faces of respective conductive webs, and sealing adjacent longitudinal edges of said outer webs outwardly beyond said conductive webs to projecting longitudinal edge portions of said open work web with said conductive webs remaining unsealed, whereby said conductive webs are each retained in position by and between said open work web and a respective outer web without additional securement.
Claim 2
Dependent Claim
134 words
In the manufacture of flexible switch means, the steps which comprise: continuously feeding an intermediate open work web of resiliently yieldable sealable insulating material, continuously feeding a pair of flexible conductive webs of less width than and into facing relation with opposite faces of said open work web simultaneously with feeding of the latter, simultaneously feeding a pair of flexible non-conductive sealable outer webs of greater width than and into facing relation with opposite outer faces of respective conductive webs, and sealing adjacent longitudinal edges of said outer webs outwardly beyond said conductive webs to projecting longitudinal edge portions of said open work web with said conductive webs remaining unsealed, whereby said conductive webs are each retained in position by and between said open work web and a respective outer web without additional securement.
Claim 3
Dependent Claim
30 words
The method according to claim 1, further characterized in severing predetermined lengths of the sealed assembly, and closing the ends of said predetermined lengths to define thereof sealed switch units.
Claim 4
Dependent Claim
21 words
The method according to claim 1, wherein said sealing of said open work margins and outer web margins is by welding.
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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) | 1982-01-29 | 1982-07-31 | 1983-01-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1986-01-29 | 1986-07-31 | 1987-01-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1990-01-29 | 1990-07-31 | 1991-01-30 | $7700.00 | Window Closed / Lapsed |