US3233059A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Vacuum operated electrical switch or the like
Assignee: Robertshaw Controls Co
•
Filing: 1962-08-22
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Granted: 1966-02-01
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Expires: 1982-08-22
Abstract
No abstract record available.
Inventors
- 👤 Jr Donald C Pridham
- 👤 Reed A Palmer
- 👤 Louis P Morris
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 20:19
CPC Classifications
D; D06; D06F; D06F33/00; D06F33/04; D06F33/10; G; G05; G05B; G05B19/00; G05B19/43; G05B19/44; H; H01; H01H; H01H33/00; H01H33/60; H01H33/66; H01H35/00; H01H35/24; H01H35/26; H01H35/30; H01H35/34; H01H35/346; H01H43/00; H01H43/02; H01H43/04; H01H43/08; H01H9/00; H01H9/30; H01H2009/307
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
128 words
A SWITCH COMPRISING: A PAIR OF DISC SHAPED CIRCULAR DIAPHRAGMS ATTACHED TO EACH OTHER AT THEIR PERIPHERY TO FORM A HOLLOW HOUSING, A FIRST CONTACT ATTACHED TO ONE OF SAID DIAPHRAGMS, A SECOND CONTACT ATTACHED TO THE OTHER OF SAID DIAPHRAGMS SUCH THAT IT IS POSITIONED OPPOSITE TO SAID FIRST CONTACT, SAID CONTACTS EXTENDING WITHIN SAID HOUSING AND HAVING CONTACT FACES FACING EACH OTHER, A NIPPLE ATTACHED TO ONE OF SAID CONTACTS, SAID NIPPLE AND CONTACT HAVING A PASSAGEWAY THERETHROUGH AND TERMINATING IN SPACED RELATION WITH SAID CONTACT FACE AND WITHIN SAID CLOSED HOUSING WHEREBY SOURCE OF PRESSURE MAY BE ATTCHED TO SAID NIPPLE TO EVACUATE THE HOUSING AND FLEX THE DIAPHRAGMS TOWARD EACH OTHER AND VARY THE SPACIAL RELATION OF THE CONTACTS WITH RELATION TO EACH OTHER.
Claim 2
Dependent Claim
128 words
A SWITCH COMPRISING: A PAIR OF DISC SHAPED CIRCULAR DIAPHRAGMS ATTACHED TO EACH OTHER AT THEIR PERIPHERY TO FORM A HOLLOW HOUSING, A FIRST CONTACT ATTACHED TO ONE OF SAID DIAPHRAGMS, A SECOND CONTACT ATTACHED TO THE OTHER OF SAID DIAPHRAGMS SUCH THAT IT IS POSITIONED OPPOSITE TO SAID FIRST CONTACT, SAID CONTACTS EXTENDING WITHIN SAID HOUSING AND HAVING CONTACT FACES FACING EACH OTHER, A NIPPLE ATTACHED TO ONE OF SAID CONTACTS, SAID NIPPLE AND CONTACT HAVING A PASSAGEWAY THERETHROUGH AND TERMINATING IN SPACED RELATION WITH SAID CONTACT FACE AND WITHIN SAID CLOSED HOUSING WHEREBY SOURCE OF PRESSURE MAY BE ATTCHED TO SAID NIPPLE TO EVACUATE THE HOUSING AND FLEX THE DIAPHRAGMS TOWARD EACH OTHER AND VARY THE SPACIAL RELATION OF THE CONTACTS WITH RELATION TO EACH OTHER.
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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) | 1969-01-31 | 1969-08-02 | 1970-02-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-01-31 | 1973-08-02 | 1974-02-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-01-31 | 1977-08-02 | 1978-02-01 | $7700.00 | Window Closed / Lapsed |