US3139020A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Air conditioning unit and control mechanism therefor
Assignee: Individual
•
Filing: 1961-04-26
•
Granted: 1964-06-30
•
Expires: 1981-04-26
Abstract
No abstract record available.
Inventors
- 👤 Harold L Schemenauer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 16:40
CPC Classifications
F; F24; F24F; F24F11/00; F24F11/70; F24F11/80; F24F11/81; F24F1/00; F24F1/0007; F24F1/0035; F24F1/0043; F24F1/005; F24F1/0059; F24F1/0063; F24F1/0071; F24F1/0073; Y; Y10; Y10T; Y10T74/00; Y10T74/18; Y10T74/18888; Y10T74/1892
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
142 words
IN AN AIR CONDITIONING UNIT, A FIRST DAMPER, A FIRST SHAFT ON WHICH SAID FIRST DAMPER IS MOUNTED, A SECOND DAMPER, A SECOND SHAFT ON WHICH SAID SECOND DAMPER IS MOUNTED, A FIRST CAM MEMBER ON SAID FIRST SHAFT TO ONE SIDE OF SAID FIRST DAMPER FOR TURNING SAID FIRST SHAFT WHEN SAID CAM MEMBER IS TURNED, TWO ANGULARLY DISPLACED CAM MEMBERS ON SAID SECOND SHAFT FOR TURNING SAID SECOND SHAFT WHEN EITHER OF SAID TWO ANGULARLY DISPOSED CAM MEMBERS IS TURNED, A CAM PLATE MOVABLE IN A PATH INTERSECTING PORTIONS OF ALL THREE CAM MEMBERS WHEN SAID CAM MEMBERS ARE IN PREDETERMINED POSITIONS, MEANS FOR MOVING SAID PLATE IN SAID PATH, MEANS ON SAID PLATE FOR CONTACTING AND TURNING SAID CAM MEMBERS IN A PREDETERMINED ORDER TO PREDETERMINED POSITIONS AND TO ROTATE SAID DAMPERS IN A PREDETERMINED ORDER TO PREDETERMINED POSITIONS.
Claim 2
Dependent Claim
142 words
IN AN AIR CONDITIONING UNIT, A FIRST DAMPER, A FIRST SHAFT ON WHICH SAID FIRST DAMPER IS MOUNTED, A SECOND DAMPER, A SECOND SHAFT ON WHICH SAID SECOND DAMPER IS MOUNTED, A FIRST CAM MEMBER ON SAID FIRST SHAFT TO ONE SIDE OF SAID FIRST DAMPER FOR TURNING SAID FIRST SHAFT WHEN SAID CAM MEMBER IS TURNED, TWO ANGULARLY DISPLACED CAM MEMBERS ON SAID SECOND SHAFT FOR TURNING SAID SECOND SHAFT WHEN EITHER OF SAID TWO ANGULARLY DISPOSED CAM MEMBERS IS TURNED, A CAM PLATE MOVABLE IN A PATH INTERSECTING PORTIONS OF ALL THREE CAM MEMBERS WHEN SAID CAM MEMBERS ARE IN PREDETERMINED POSITIONS, MEANS FOR MOVING SAID PLATE IN SAID PATH, MEANS ON SAID PLATE FOR CONTACTING AND TURNING SAID CAM MEMBERS IN A PREDETERMINED ORDER TO PREDETERMINED POSITIONS AND TO ROTATE SAID DAMPERS IN A PREDETERMINED ORDER TO PREDETERMINED POSITIONS.
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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) | 1967-06-30 | 1967-12-30 | 1968-06-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-06-30 | 1971-12-30 | 1972-06-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-06-30 | 1975-12-30 | 1976-06-30 | $7700.00 | Window Closed / Lapsed |