US3911664A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Wrist actuated pressure switch for watches
Assignee: Individual
•
Filing: 1975-03-07
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Granted: 1975-10-14
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Expires: 1995-03-07
Abstract
Abstract The pressure switch comprises a conducting strip and plate separated by insulating material provided with a window such that pressure applied to the strip will flex the strip through the window to electrically engage the plate. The switch assembly is located in a watchband close to a point diametrically opposite the watch casing itself. The strip and plate are connected through conductors to an internal wire in the watch casing and the casing itself to ground the wire to the casing and thereby actuate a circuit in the watch to render the watch display visible.
Inventors
- 👤 Terry M Haber
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 17:07
CPC Classifications
G; G04; G04C; G04C3/00; G04C3/001
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
228 words
In a wristwatch comprising a watch casing and band for encircling a wearer''s wrist, the casing having a display on its face requiring that a circuit be momentarily closed to render the display visible and wherein said circuit includes an internal lead which is closed by electrically connecting the lead to the said casing, a wrist actuated pressure switch for closing said circuit including, in combination: a. a flexible conducting strip located on said band in a position between 120* and 240* from said casing; b. a thin sheet of insulating material underlying said strip and having an open window exposing a surface portion of said strip; c. a conducting plate underlying said insulating material and window so that said insulating material and window are sandwiched between said strip and plate, the thickness of said insulAting material and size of said window being such that a given pressure against said strip will cause a portion of the strip overlying the window to flex through the window and electrically contact said plate, the natural resiliency of said strip returning it to an out-of-contact position relative to said plate in the absence of said pressure; and, d. first and second conducting means connecting said strip and plate respectively to said internal lead and watch casing so that said circuit is closed when said given pressure is applied to said strip.
Claim 2
Dependent Claim
228 words
In a wristwatch comprising a watch casing and band for encircling a wearer''s wrist, the casing having a display on its face requiring that a circuit be momentarily closed to render the display visible and wherein said circuit includes an internal lead which is closed by electrically connecting the lead to the said casing, a wrist actuated pressure switch for closing said circuit including, in combination: a. a flexible conducting strip located on said band in a position between 120* and 240* from said casing; b. a thin sheet of insulating material underlying said strip and having an open window exposing a surface portion of said strip; c. a conducting plate underlying said insulating material and window so that said insulating material and window are sandwiched between said strip and plate, the thickness of said insulAting material and size of said window being such that a given pressure against said strip will cause a portion of the strip overlying the window to flex through the window and electrically contact said plate, the natural resiliency of said strip returning it to an out-of-contact position relative to said plate in the absence of said pressure; and, d. first and second conducting means connecting said strip and plate respectively to said internal lead and watch casing so that said circuit is closed when said given pressure is applied to said strip.
Claim 3
Dependent Claim
47 words
The subject matter of claim 1, in which said flexible strip is internal of said band so that the inside portion of the wearer''s wrist is used to exert said given pressure against the strip by pushing the exterior portion of the band against a stationary object.
Claim 4
Dependent Claim
31 words
The subject matter of claim 1, in which said flexible strip is external of said band so that a stationary object against which the band is urged exerts said given pressure.
Claim 5
Dependent Claim
13 words
The subject matter of claim 1, including a moisture-proof film overlying said strip.
Claim 6
Dependent Claim
83 words
The subject matter of claim 1, in which said band is made of conducting material, said first conducting means comprising an insulated conductor connected to said strip and passing about an interior portion of said band to said casing, said casing having an insulated opening, said conductor connecting to said internal lead through said insulated opening, said plate being in electrical connection with said band so that the said conducting material of said band serves as said second conducting means to said casing.
Claim 7
Dependent Claim
146 words
The subject matter of claim 1, in which said band is made of conducting material; first insulating means between a first portion of said band and said casing; second insulating means between said first portion of said band and said strip to insulate said first portion from the remaining portion of said band, said strip being connected to said one end of said first portion of said band, said casing including an insulated opening, said internal lead connecting to the other end of said first portion of said band, through said insulated opening so that the said conducting material of said first portion of said band defines said first conducting means, said plate being in electrical connection with said remaining portion of said band so that the said conducting material of said remaining portion of said band serves as said second conducting means to said casing.
Claim 8
Dependent Claim
93 words
The subject matter of claim 1, in which said first conducting means comprises a first insulated conductor connected to said strip and passing about an interior portion of said band to said casing, said casing having an insulated opening, said first insulated conductor connecting to said internal lead through said insulated opening; and in which said second conducting means comprises a second insulated conductor connected to said plate and passing about said inside interior portion of said band adjacent to said first insulated conductor to terminate at said casing in electrical connection therewith.
Claim 9
Dependent Claim
71 words
The subject matter of claim 6, in which said band includes metal links and a clasp, said strip, insulating material and plate being positioned in said clasp; and means for freezing the first link in said first portion of said band where it connects to the clasp to limit the flexing of the band and thereby minimize wear on the connection of the strip to said first portion of the band.
Claim 10
Dependent Claim
36 words
The subject matter of claim 3, including a soft insulative covering over said strip to protect the same from the stationary object against which the band is urged in applying said given pressure to said strip.
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) | 1978-10-13 | 1979-04-14 | 1979-10-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-10-13 | 1983-04-14 | 1983-10-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-10-13 | 1987-04-14 | 1987-10-14 | $7700.00 | Window Closed / Lapsed |