US3767875A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Diaphragm type pushbutton setting switch with fixed contact semiconductor substrate support
Assignee: Texas Instruments Inc
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Filing: 1972-06-19
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Granted: 1973-10-23
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Expires: 1992-06-19
Abstract
Abstract Disclosed is a setting switch for electronic watches comprising a rigid contact pin mounted on the electronic substrate of the watch and a flexible spring contact mounted in an aperture of the watch case in registration with the rigid contact. A flexible diaphragm and retaining ring mounted over the spring contact in the aperture form a moisture seal with the watch case.
Inventors
- 👤 P Schneikart
- 👤 R Murdock
- 👤 J Day
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 23:31
CPC Classifications
G; G04; G04C; G04C3/00; G04C3/001; G04C3/005; G04G; G04G5/00; G04G5/04; H; H01; H01H; H01H13/00; H01H13/02; H01H13/04; H01H13/06; H01H13/12; H01H13/26; H01H13/48; H01H2300/00; H01H2300/016
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
114 words
An electrical switch comprising in combination: a. an enclosure defining an aperture extending through one surface thereof; b. a flexible first electrical contact mounted within said aperture; c. a flexible diaphragm positioned adjacent said flexible contact; d. means for sealing the aperture in said enclosure comprising a retaining ring engaging the sidewalls of said aperture and the surface of said flexible diaphragm in sealing relationship; and e. a second electrical contact means comprising a conductive post spaced from said first contact and mounted to a contact region of a semiconductor substrate which is mounted within said enclosure whereby, responsive to displacement of said flexible diaphragm, electrical contact is established between first and second contact.
Claim 2
Dependent Claim
114 words
An electrical switch comprising in combination: a. an enclosure defining an aperture extending through one surface thereof; b. a flexible first electrical contact mounted within said aperture; c. a flexible diaphragm positioned adjacent said flexible contact; d. means for sealing the aperture in said enclosure comprising a retaining ring engaging the sidewalls of said aperture and the surface of said flexible diaphragm in sealing relationship; and e. a second electrical contact means comprising a conductive post spaced from said first contact and mounted to a contact region of a semiconductor substrate which is mounted within said enclosure whereby, responsive to displacement of said flexible diaphragm, electrical contact is established between first and second contact.
Claim 3
Dependent Claim
170 words
An electrical switch for an electronic wrist watch comprising in combination: a. a wrist watch case defining an aperture through the back place thereof, the region of said case adjacent said aperture defining a recess extending from the back surface, thereby defining a support lip around said aperture; b. a contact spring having a first flexible central contact, said spring secured to said support lip within said recessed region; c. a flexible diaphragm mounted within said recess region and adjacent said flexible contact, said diaphragm having a raised central portion extending substantially flush with the surface of said back plate, d. a retaining ring engaging the sidewalls of said aperture and the surface of said flexible diaphragm in sealing relationship; and e. a second contact mounted within said case and to a contact pad of a semiconductor substrate, said second contact extending into said aperture in close proximity to said first contact, whereby responsive to displacement of said flexible diaphragm electrical contact is established between said first and second contacts.
Claim 4
Dependent Claim
170 words
An electrical switch for an electronic wrist watch comprising in combination: a. a wrist watch case defining an aperture through the back place thereof, the region of said case adjacent said aperture defining a recess extending from the back surface, thereby defining a support lip around said aperture; b. a contact spring having a first flexible central contact, said spring secured to said support lip within said recessed region; c. a flexible diaphragm mounted within said recess region and adjacent said flexible contact, said diaphragm having a raised central portion extending substantially flush with the surface of said back plate, d. a retaining ring engaging the sidewalls of said aperture and the surface of said flexible diaphragm in sealing relationship; and e. a second contact mounted within said case and to a contact pad of a semiconductor substrate, said second contact extending into said aperture in close proximity to said first contact, whereby responsive to displacement of said flexible diaphragm electrical contact is established between said first and second contacts.
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) | 1976-10-22 | 1977-04-23 | 1977-10-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-10-22 | 1981-04-23 | 1981-10-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-10-22 | 1985-04-23 | 1985-10-23 | $7700.00 | Window Closed / Lapsed |