US3332475A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Air-conditioning control system
Assignee: American Air Filter Co Inc
•
Filing: 1965-08-31
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Granted: 1967-07-25
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Expires: 1985-08-31
Abstract
Abstract 1,162,207. Cams. AMERICAN AIR FILTER CO. Inc. 22 Aug., 1966 [31 Aug., 1965], No. 37614/66. Heading F2K. [Also in Division F4] An adjustable profile cam employed in an air conditioning unit (see Division F4) comprises two plates 53a, 55 linked by a spring 62. On counter-clockwise rotation of the cam, the follower 57a follows the profile shown, but on clockwise rotation the follower abuts against the surface 70a of plate 55, and moves this relative to plate 53a against the spring 62 until a screw 67 on the plate 53a abuts against a projection 66 on the plate 55.
Inventors
- 👤 Dale L Selhost
- 👤 James P Warner
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 00:03
CPC Classifications
F; F24; F24F; F24F11/00; F24F11/30; F24F1/00; F24F1/02; F24F1/028; F24F1/03; F24F1/0314; F24F1/032; F24F1/0328; F24F11/70; F24F11/80; F24F11/81; F24F11/83; F24F11/89; F24F7/00; F24F2007/004
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
159 words
AN IMPROVED AIR-CONDITIONING UNIT COMPRISING A UNIT HOUSING HAVING AIR INLET MEANS INCLUDING AN OUTDOOR AIR INLET AND A ROOM AIR INLET; AN AIR DISCHARGE OUTLET TO EMIT AIR FROM SAID HOUSING TO SPACE TO BE SERVED BY SAID AIRCONDITIONING UNIT; MEANS FOR PROVIDING FLOW OF AIR THROUGH SAID HOUSING FROM SAID AIR INLET MEANS TO SAID AIR DISCHARGE OUTLET; AIR HEATING MEANS; AIR COOLING MEANS; TEMPERATURE SENSING MEANS IN SAID SPACE, DAMPER MEANS INCLUDING FIRST DAMPER MEANS FOR CONTROLLING THE PROPORTION OF OUTDOOR AIR AND ROOM AIR ADMITTED TO SAID UNIT IN RESPONSE TO TEMPERATURE IN SPACE SERVED BY SAID UNIT IN AND SECOND DAMPER MEANS FOR DIRECTING SELECTED QUANTITIES OF AIR TO SAID AIR HEATING MEANS AND SAID AIR COOLING MEANS IN RESPONSE TO TEMPERATURE IN SAID SPACE SERVED BY SAID UNIT; AND, MEANS TO SELECTIVELY SUPPLY TEMPERING MEDIUM TO SAID COOLING MEANS AND SAID AIR HEATING MEANS IN ACCORDANCE WITH THE POSITION OF SAID DAMPER MEANS.
References Cited (Backward Citations)
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US2828110A
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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) | 1970-07-24 | 1971-01-23 | 1971-07-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-07-24 | 1975-01-23 | 1975-07-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-07-24 | 1979-01-23 | 1979-07-25 | $7700.00 | Window Closed / Lapsed |