Patent US3174423A successfully refreshed from Google Patents.
US3174423A
Expired / Lapsed
US
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Animal house ventilation
Assignee: AUTOMATIC POULTRY FEEDER CO
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Filing: 1962-10-25
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Granted: 1965-03-23
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Expires: 1982-10-25
Abstract
No abstract record available.
Inventors
- 👤 Preston D Rigterink
- 👤 Neil W Cornstubble
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 12:56
CPC Classifications
F; F24; F24F; F24F7/00; F24F7/02; A; A01; A01K; A01K1/00; A01K1/0047; A01K1/0058; Y; Y10; Y10T; Y10T74/00; Y10T74/21; Y10T74/2101; Y10T74/2102
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
157 words
A CONTROLLED ALL-WEATHER AIR INLET APPARATUS FOR MOUNTING THROUGH THE ROOF OF AN ANIMAL HOUSE COMPRISING: A HOUSING FORMING VERTICALLY EXTENDING DUCT MEANS OPEN ON ITS UPPER END FOR COMMUNICATION TO THE OUTSIDE AIR; A CANOPY AFFIXED TO SAID HOUSING ABOVE SAID OPEN UPPER END; SAID DUCT MEANS BEING OPEN ON ITS LOWER END FOR COMMUNICATION TO THE INSIDE OF THE ANIMAL HOUSE; A PLURALITY OF COLLAPSIBLE TENSION ELEMENTS MOUNTED TO SAID HOUSING AND DEPENDING THEREFROM; A GENERALLY HORIZONTAL DOOR FRAME ATTACHED TO THE LOWER ENDS OF AND SUSPENDED BY SAID COLLAPSIBLE TENSION ELEMENTS A SUBSTANTIAL DISTANCE BENEATH SAID HOUSING AND IN VERTICAL ALIGNMENT THEREWITH; A DOOR HINGEDLY MOUNTED TO THE BOTTOM OF SAID FRAME TO SWING DOWNWARDLY OPEN AND UPWARDLY CLOSED AGAINST SAID FRAME; SAID FRAME BEING OPEN TO ALLOW DIRECT AIR FLOW DOWN THROUGH IT IN VARYING AMOUNTS DEPENDING UPON THE EXTENT OF OPENING OF SAID DOOR; THE SPACE BETWEEN SAID FRAME AND SAID HOUSING
Claim 2
Dependent Claim
157 words
A CONTROLLED ALL-WEATHER AIR INLET APPARATUS FOR MOUNTING THROUGH THE ROOF OF AN ANIMAL HOUSE COMPRISING: A HOUSING FORMING VERTICALLY EXTENDING DUCT MEANS OPEN ON ITS UPPER END FOR COMMUNICATION TO THE OUTSIDE AIR; A CANOPY AFFIXED TO SAID HOUSING ABOVE SAID OPEN UPPER END; SAID DUCT MEANS BEING OPEN ON ITS LOWER END FOR COMMUNICATION TO THE INSIDE OF THE ANIMAL HOUSE; A PLURALITY OF COLLAPSIBLE TENSION ELEMENTS MOUNTED TO SAID HOUSING AND DEPENDING THEREFROM; A GENERALLY HORIZONTAL DOOR FRAME ATTACHED TO THE LOWER ENDS OF AND SUSPENDED BY SAID COLLAPSIBLE TENSION ELEMENTS A SUBSTANTIAL DISTANCE BENEATH SAID HOUSING AND IN VERTICAL ALIGNMENT THEREWITH; A DOOR HINGEDLY MOUNTED TO THE BOTTOM OF SAID FRAME TO SWING DOWNWARDLY OPEN AND UPWARDLY CLOSED AGAINST SAID FRAME; SAID FRAME BEING OPEN TO ALLOW DIRECT AIR FLOW DOWN THROUGH IT IN VARYING AMOUNTS DEPENDING UPON THE EXTENT OF OPENING OF SAID DOOR; THE SPACE BETWEEN SAID FRAME AND SAID HOUSING
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) | 1968-03-22 | 1968-09-21 | 1969-03-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-03-22 | 1972-09-21 | 1973-03-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-03-22 | 1976-09-21 | 1977-03-23 | $7700.00 | Window Closed / Lapsed |