Patent US3322331A successfully refreshed from Google Patents.
US3322331A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Air impeller and housing units
Assignee: Madison Management Group Inc
•
Filing: 1966-08-31
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Granted: 1967-05-30
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Expires: 1986-08-31
Abstract
No abstract record available.
Inventors
- 👤 Robert J Kenny
- 👤 Donald F White
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 05:12
CPC Classifications
F; F04; F04D; F04D29/00; F04D29/60; F04D29/62; F04D29/624; F04D29/626; F04D17/00; F04D17/02; F04D17/04; F04D29/64; F04D29/644; F04D29/646
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
111 words
IN AN AIR IMPELLER UNIT THE COMBINATION COMPRISING A MOTOR INCLUDING A CASING AND A SHAFT, AT LEAST ONE AIR IMPELLER MOUNTED UPON SAID SHAFT AND HAVING AIR MOVING BLADES, AND A HOUSING COMPRISING TWO HALF SECTIONS ADAPTED TO BE JOINED TOGETHER IN ASSEMBLY TO DEFINE A CHAMBER FOR RECEIVING THE IMPELLER, AT LEAST ONE OF SAID HOUSING HALF SECTIONS INCLUDING AN INNER WALL SURFACE ADAPTED TO BE SPACED RADIALLY FROM THE IMPELLER, A MOTOR CLAMPING MEANS ON EACH HALF SECTION ADAPTED TO ENGAGE AN ASSOCIATED PORTION OF THE MOTOR, SAID CLAMPING MEANS AND THE MOTOR PORTION ENGAGED THEREBY BEING CONSTRUCTED AND ARRANGED TO SECURE THE MOTOR AGAINST RELATIVE AXIAL, RADIAL
Claim 2
Dependent Claim
111 words
IN AN AIR IMPELLER UNIT THE COMBINATION COMPRISING A MOTOR INCLUDING A CASING AND A SHAFT, AT LEAST ONE AIR IMPELLER MOUNTED UPON SAID SHAFT AND HAVING AIR MOVING BLADES, AND A HOUSING COMPRISING TWO HALF SECTIONS ADAPTED TO BE JOINED TOGETHER IN ASSEMBLY TO DEFINE A CHAMBER FOR RECEIVING THE IMPELLER, AT LEAST ONE OF SAID HOUSING HALF SECTIONS INCLUDING AN INNER WALL SURFACE ADAPTED TO BE SPACED RADIALLY FROM THE IMPELLER, A MOTOR CLAMPING MEANS ON EACH HALF SECTION ADAPTED TO ENGAGE AN ASSOCIATED PORTION OF THE MOTOR, SAID CLAMPING MEANS AND THE MOTOR PORTION ENGAGED THEREBY BEING CONSTRUCTED AND ARRANGED TO SECURE THE MOTOR AGAINST RELATIVE AXIAL, RADIAL
References Cited (Backward Citations)
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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) | 1970-05-29 | 1970-11-28 | 1971-05-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-05-29 | 1974-11-28 | 1975-05-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-05-29 | 1978-11-28 | 1979-05-30 | $7700.00 | Window Closed / Lapsed |