Patent US4385215A successfully refreshed from Google Patents.
US4385215A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Thin-membrane switch
Assignee: EECO Inc
•
Filing: 1981-11-09
•
Granted: 1983-05-24
•
Expires: 2001-11-09
Abstract
Abstract A flexible membrane switch having a thin insulating layer with a plurality of small apertures interposed between two sets of conductors which cross at each aperture. A person's fingertip pressed upon the switch closes the contacts at plural apertures. Spurious contacting is prevented. An alternate has an additional interposed insulating layer except at those areas where fingertip pressure is to be applied. Larger area switches may be palm, fist or foot operated.
Inventors
- 👤 Milton B. Lemberg
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 22:11
CPC Classifications
H; H01; H01H; H01H13/00; H01H13/70; H01H13/702; H01H13/703; H01H2203/00; H01H2203/036; H01H2203/054; H01H2209/00; H01H2209/024; H01H2209/038; H01H2209/046; H01H2209/06; H01H2209/068; H01H2209/082; H01H2211/00; H01H2211/006; H01H2227/00; H01H2227/002; H01H2227/024; H01H2229/00; H01H2229/002; H01H2229/024; H01H2229/028
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
121 words
An electric switch having planar elements, comprising: (a) a first configured conductor (2) printed upon the inner surface of a first flexible insulator (1), (b) a second conductor (5) printed upon the inner surface of a second flexible insulator, configured to intersect said first configured conductor at a plurality of locations, and (c) a third incompressible flexible insulator (4) disposed between said first and second configured conductors, said third flexible insulator printed upon at least one of said first or second flexible insulators and having an aperture at each of said plurality of locations, to allow electrical contact between the first and second conductors at plural locations upon application of transverse pressure upon the switch over an area embracing plural locations.
Claim 2
Dependent Claim
121 words
An electric switch having planar elements, comprising: (a) a first configured conductor (2) printed upon the inner surface of a first flexible insulator (1), (b) a second conductor (5) printed upon the inner surface of a second flexible insulator, configured to intersect said first configured conductor at a plurality of locations, and (c) a third incompressible flexible insulator (4) disposed between said first and second configured conductors, said third flexible insulator printed upon at least one of said first or second flexible insulators and having an aperture at each of said plurality of locations, to allow electrical contact between the first and second conductors at plural locations upon application of transverse pressure upon the switch over an area embracing plural locations.
Claim 3
Dependent Claim
19 words
The switch of claim 1, in which; (a) said first and second configured conductors are substantially linearly orthogonally related.
Claim 4
Dependent Claim
18 words
The switch of claim 1, in which; (a) said first and second configured conductors are substantially annularly related.
Claim 5
Dependent Claim
18 words
The switch of claim 1, in which; (a) said first and second configured conductors are substantially colinearly related.
Claim 6
Dependent Claim
35 words
The switch of claim 1, in which; (a) said third flexible insulator is printed upon both said first (1) and second (6) flexible insulators and the printing of said third flexible insulator have coincident apertures.
Claim 7
Dependent Claim
25 words
The switch of claim 1, in which; (a) the recited conductor-insulator-aperture structure is duplicated at plural separate areas over the total area of said switch.
Claim 8
Dependent Claim
27 words
The switch of claim 1, in which; (a) the recited conductor-insulator-aperture structure is duplicated to embrace a large area, as that of the palm of a hand.
Claim 9
Dependent Claim
83 words
The switch of claim 1, in which; (a) said first and second configured conductors have plural separate configurations that separately pass over plural said apertures in the third insulator, and (b) said plural separate configurations of the first conductor are elsewhere electrically connected together (8), and said plural separate configurations of the second conductor are elsewhere electrically connected together (9), to provide contact between the first and second conductors at plural aperture locations, upon transverse pressure being applied at the plural aperture locations.
Claim 10
Dependent Claim
36 words
The switch of claim 1, which additionally includes; (a) a fourth flexible insulator (10) interposed between said third flexible insulator and a said configured conductor, save at said plural locations where said transverse pressure is applied.
Claim 11
Dependent Claim
26 words
The switch of claim 9, in which; (a) said plural locations where said transverse pressure is applied embrace a small area, as that of a fingertip.
References Cited (Backward Citations)
US3056005A
Cited
US3383487A
Cited
US3721778A
Cited
US3718791A
Cited
US3862381A
Cited
US3969595A
Cited
US4017697A
Cited
US4066851A
Cited
US4317013A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1986-05-23 | 1986-11-22 | 1987-05-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1990-05-23 | 1990-11-22 | 1991-05-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1994-05-23 | 1994-11-22 | 1995-05-24 | $7700.00 | Window Closed / Lapsed |