US3305163A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Ventilator
Assignee: G C BREIDERT Co
•
Filing: 1965-04-12
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Granted: 1967-02-21
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Expires: 1985-04-12
Abstract
No abstract record available.
Inventors
- 👤 Albert S Sheppard
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 12:58
CPC Classifications
F; F04; F04D; F04D29/00; F04D29/60; F04D29/62; F04D29/624; F04D29/626; F24; F24F; F24F7/00; F24F7/02; F24F7/025; F24F7/04; F24F7/06
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
157 words
IN A MOTORIZED VENTILATOR ADAPTED TO BE MOUNTED ON THE ROOF OF A BUILDING OR THE LIKE, A MAIN HOUSING INCLUDING SIDE WALLS AND A TOP WALL, SAID TOP WALL BEING OPENABLE, A BLOWER WHEEL HOUSING MOUNTED WITHIN SAID MAIN HOUSING AND HAVING AN INLET AND AN OUTLET IN OPEN COMMUNICATION WITH THE EXTERIOR OF THE MAIN HOUSING, SAID MAIN AND BLOWER HOUSINGS COOPERATING TO DEFINE A HEAD SPACE INSIDE THE MAIN HOUSING ABOVE THE BLOWER HOUSING, SAID BLOWER WHEEL HOUSING HAVING AN UPPER WALL WITH A TRAPDOOR THEREIN, A BLOWER WHEEL JOURNALED ON SAID TRAPDOOR FOR ROTATION WITHIN THE BLOWER WHEEL HOUSING, SAID TRAPDOOR BEING MOVABLE TO POSITION THE BLOWER WHEEL EXTERIORLY OF THE BLOWER WHEEL HOUSING AND EXPOSE THE INTERIOR THEREOF, AN ELECTRIC MOTOR MOUNTED LATERALLY OF SAID BLOWER WHEEL IN SAID MAIN HOUSING EXTERIORLY OF SAID BLOWER WHEEL HOUSING, AND DRIVE MEANS EXTENDING THROUGH SAID HEAD SPACE CONNECTING SAID MOTOR AND SAID BLOWER WHEEL.
Claim 2
Dependent Claim
157 words
IN A MOTORIZED VENTILATOR ADAPTED TO BE MOUNTED ON THE ROOF OF A BUILDING OR THE LIKE, A MAIN HOUSING INCLUDING SIDE WALLS AND A TOP WALL, SAID TOP WALL BEING OPENABLE, A BLOWER WHEEL HOUSING MOUNTED WITHIN SAID MAIN HOUSING AND HAVING AN INLET AND AN OUTLET IN OPEN COMMUNICATION WITH THE EXTERIOR OF THE MAIN HOUSING, SAID MAIN AND BLOWER HOUSINGS COOPERATING TO DEFINE A HEAD SPACE INSIDE THE MAIN HOUSING ABOVE THE BLOWER HOUSING, SAID BLOWER WHEEL HOUSING HAVING AN UPPER WALL WITH A TRAPDOOR THEREIN, A BLOWER WHEEL JOURNALED ON SAID TRAPDOOR FOR ROTATION WITHIN THE BLOWER WHEEL HOUSING, SAID TRAPDOOR BEING MOVABLE TO POSITION THE BLOWER WHEEL EXTERIORLY OF THE BLOWER WHEEL HOUSING AND EXPOSE THE INTERIOR THEREOF, AN ELECTRIC MOTOR MOUNTED LATERALLY OF SAID BLOWER WHEEL IN SAID MAIN HOUSING EXTERIORLY OF SAID BLOWER WHEEL HOUSING, AND DRIVE MEANS EXTENDING THROUGH SAID HEAD SPACE CONNECTING SAID MOTOR AND SAID BLOWER WHEEL.
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) | 1970-02-20 | 1970-08-22 | 1971-02-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-02-20 | 1974-08-22 | 1975-02-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-02-20 | 1978-08-22 | 1979-02-21 | $7700.00 | Window Closed / Lapsed |