Patent US3294320A successfully refreshed from Google Patents.
US3294320A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Bi-metal transducer
Assignee: Dole Valve Co
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Filing: 1965-04-26
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Granted: 1966-12-27
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Expires: 1985-04-26
Abstract
No abstract record available.
Inventors
- 👤 Rudolph J Franz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 23:19
CPC Classifications
G; G05; G05D; G05D23/00; G05D23/185; G05D23/1854
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
123 words
A TEMPERATURE RESPONSIVE ACTUATOR COMPRISING A CONTINUOUS BI-METAL STRIP HAVING THE JUNCTION LINE OF ITS TWO METALS LYING GENERALLY IN A PLANE AND HAVING A PLURALITY OF BIGHTS AND SUBSTANTIALLY TRANSVERSE SEGMENTS INTERCONNECTING SAID BIGHTS TO FORM A REPETITIVE WAVE, A SUPPORTING FRAME HAVING A PAIR OF SPACED ARMS, ONE OF SAID ARMS BEING SUBSTANTIALLY RIGIDLY SECURED TO ONE ALTERNATE SET OF BIGHTS OF SAID BI-METAL STRIP, THE OTHER OF SAID ARMS BEING SUBSTANTIALLY RIGIDLY SECURED TO THE OTHER SET OF BIGHTS OF SAID BI-METAL STRIP, AN ACTUATING ARM SECURED TO SAID BI-METAL STRIP AT A PLURALITY OF POINTS LOCATED INTERMEDIATE SAID PAIR OF SUPPORTING ARMS, SAID ACTUATING ARM BEING MOVABLE BY SAID BI-METAL STRIP UPON A TEMPERATURE CHANGE OF SAID BI-METAL STRIP.
Claim 2
Dependent Claim
123 words
A TEMPERATURE RESPONSIVE ACTUATOR COMPRISING A CONTINUOUS BI-METAL STRIP HAVING THE JUNCTION LINE OF ITS TWO METALS LYING GENERALLY IN A PLANE AND HAVING A PLURALITY OF BIGHTS AND SUBSTANTIALLY TRANSVERSE SEGMENTS INTERCONNECTING SAID BIGHTS TO FORM A REPETITIVE WAVE, A SUPPORTING FRAME HAVING A PAIR OF SPACED ARMS, ONE OF SAID ARMS BEING SUBSTANTIALLY RIGIDLY SECURED TO ONE ALTERNATE SET OF BIGHTS OF SAID BI-METAL STRIP, THE OTHER OF SAID ARMS BEING SUBSTANTIALLY RIGIDLY SECURED TO THE OTHER SET OF BIGHTS OF SAID BI-METAL STRIP, AN ACTUATING ARM SECURED TO SAID BI-METAL STRIP AT A PLURALITY OF POINTS LOCATED INTERMEDIATE SAID PAIR OF SUPPORTING ARMS, SAID ACTUATING ARM BEING MOVABLE BY SAID BI-METAL STRIP UPON A TEMPERATURE CHANGE OF SAID BI-METAL 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) | 1969-12-26 | 1970-06-27 | 1970-12-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-12-26 | 1974-06-27 | 1974-12-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-12-26 | 1978-06-27 | 1978-12-27 | $7700.00 | Window Closed / Lapsed |