US3279778A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Controller adjusting mechanism
Assignee: Danfoss AS
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Filing: 1964-03-31
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Granted: 1966-10-18
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Expires: 1984-03-31
Abstract
No abstract record available.
Inventors
- 👤 Jespersen Hans Jorgen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 14:04
CPC Classifications
F; F25; F25B; F25B41/00; F25B41/30; F25B41/31; F25B41/33; F25B41/335
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
69 words
IN A CONTROLLER HAVING A CONTROL SPRING FOR VARIABLY SETTING A RANGE OF CONTROL POINT SETTINGS OF A VARIABLE TO BE CONTROLLED BY VARIABLY SETTING A FORCE EXERTED BY SAID SPRING IN OPERATION, ADJUSTING MECHANISM COMPRISING ADJUSTABLE MEANS FOR VARIABLY COMPRESSING SAID CONTROL SPRING HAVING A CLUTCH FOR SETTING A GIVEN OF CONTROL POINT SETTINGS, SAID CLUTCH HAVING A PAIR OF COOPEATIVE MEMBERS FOR VARIABLY COMPRESSING SAID SPRING, SAID
Claim 2
Dependent Claim
69 words
IN A CONTROLLER HAVING A CONTROL SPRING FOR VARIABLY SETTING A RANGE OF CONTROL POINT SETTINGS OF A VARIABLE TO BE CONTROLLED BY VARIABLY SETTING A FORCE EXERTED BY SAID SPRING IN OPERATION, ADJUSTING MECHANISM COMPRISING ADJUSTABLE MEANS FOR VARIABLY COMPRESSING SAID CONTROL SPRING HAVING A CLUTCH FOR SETTING A GIVEN OF CONTROL POINT SETTINGS, SAID CLUTCH HAVING A PAIR OF COOPEATIVE MEMBERS FOR VARIABLY COMPRESSING SAID SPRING, SAID
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) | 1969-10-17 | 1970-04-18 | 1970-10-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-10-17 | 1974-04-18 | 1974-10-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-10-17 | 1978-04-18 | 1978-10-18 | $7700.00 | Window Closed / Lapsed |