Patent US3282504A successfully refreshed from Google Patents.
US3282504A
Expired / Lapsed
US
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Zone control air valve damper for heating or cooling systems
Assignee: Individual
•
Filing: 1964-11-12
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Granted: 1966-11-01
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Expires: 1984-11-12
Abstract
No abstract record available.
Inventors
- 👤 Richard N Foster
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 22:41
CPC Classifications
F; F24; F24F; F24F3/00; F24F3/02; Y; Y10; Y10T; Y10T137/00; Y10T137/8593; Y10T137/87265; Y10T137/8741; Y10T137/87442; Y10T137/87467; Y10T137/87483
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
125 words
IN AN AIR CONDITIONING SYSTEM OF THE CHARACTER DEFINED, AN AIR CONTROL UNIT COMPRISING A CASING HAVING SPACED LOUVERS THEREIN FOR CONTROL OF PASSAGE OF AIR THERETHROUGH, A DRIVE MEMBER IN OPERATIVE ENGAGEMENT WITH THE LOUVERS FOR MOVEMENT OF SAID LOUVERS INTO OPEN AND CLOSED POSITIONS, THE CASING HAVING A MOUNTING PLATE FOR SUPPORT OF THE CASING IN AN AIR CIRCULATING DUCT OF A SYSTEM, AN ACTUATOR SUPPORTED ON SAID UNIT, ACTUATOR HAVING A MOTOR DRIVEN SHAFT PROJECTING THROUGH A WALL THEREOF, A CRANK FIXED TO SAID SHAFT, A LINK COUPLED WITH THE CRANK AND WITH SAID DRIVE MEMBER FOR MOVEMENT OF THE LOUVERS INTO OPEN AND CLOSED POSITIONS, AND SAID ACTUATOR INCLUDING MEANS CONTROLLING OPERATION OF SAID CRANK AND MOVEMENT IMPARTED TO SAID LOUVERS.
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) | 1969-10-31 | 1970-05-02 | 1970-11-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-10-31 | 1974-05-02 | 1974-11-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-10-31 | 1978-05-02 | 1978-11-01 | $7700.00 | Window Closed / Lapsed |