US3263908A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Cooling arrangement for a vacuum cleaner motor or the like
Assignee: White Consolidated Industries Inc
•
Filing: 1964-05-15
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Granted: 1966-08-02
•
Expires: 1984-05-15
Abstract
No abstract record available.
Inventors
- 👤 Raymond G Kroker
- 👤 Richard E Kronmiller
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 09:25
CPC Classifications
A; A47; A47L; A47L9/00; A47L9/28; A47L9/2889; A47L5/00; A47L5/12; A47L5/22; A47L5/28; A47L9/22; A47L9/2836; A47L9/2842; A47L9/2857
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
132 words
A MOTOR-FAN UNIT COMPRISING A MOTOR PORTION AND A FAN PORTION, SAID MOTOR PORTION INCLUDING A GENERALLY CYLINDRICAL CASING HAVING AN ANNULAR SIDE WALL, AN END WALL AND A MOTOR MOUNTED THEREIN, SAID FAN PORTION IN CLUDING A GENERALLY CUP-SHAPED CASING HAVING AN ANNULAR SIDE WALL OF GREATER DIAMETER THAN SAID MOTOR CASING SIDE WALL AND AN END WALL HAVING A MAIN AIR INLET THEREIN, SAID FAN CASING BEING SECURED TO ONE END OF SAID MOTOR CASING SO THAT THE OPEN END OF SAID FAN CASING AND SAID ONE END OF SAID MOTOR CASING DEFINE AN ANNULAR AXIALLY OPENING MAIN AIR OUTLET FOR SAID FAN PORTION ADJACENT SAID MOTOR CASING END WALL, SAID OUTLET BEING UNOBSTRUCTED DOWNSTREAM THEREFROM, A FAN IN SAID FAN CASING CONNECTED TO SAID MOTOR AND OPERABLE WHEN DRIVEN
Claim 2
Dependent Claim
132 words
A MOTOR-FAN UNIT COMPRISING A MOTOR PORTION AND A FAN PORTION, SAID MOTOR PORTION INCLUDING A GENERALLY CYLINDRICAL CASING HAVING AN ANNULAR SIDE WALL, AN END WALL AND A MOTOR MOUNTED THEREIN, SAID FAN PORTION IN CLUDING A GENERALLY CUP-SHAPED CASING HAVING AN ANNULAR SIDE WALL OF GREATER DIAMETER THAN SAID MOTOR CASING SIDE WALL AND AN END WALL HAVING A MAIN AIR INLET THEREIN, SAID FAN CASING BEING SECURED TO ONE END OF SAID MOTOR CASING SO THAT THE OPEN END OF SAID FAN CASING AND SAID ONE END OF SAID MOTOR CASING DEFINE AN ANNULAR AXIALLY OPENING MAIN AIR OUTLET FOR SAID FAN PORTION ADJACENT SAID MOTOR CASING END WALL, SAID OUTLET BEING UNOBSTRUCTED DOWNSTREAM THEREFROM, A FAN IN SAID FAN CASING CONNECTED TO SAID MOTOR AND OPERABLE WHEN DRIVEN
References Cited (Backward Citations)
US2333017A
Cited
US2534808A
Cited
US2726807A
Cited
US2778563A
Cited
US2822122A
Cited
US3171353A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-08-01 | 1970-01-31 | 1970-08-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-08-01 | 1974-01-31 | 1974-08-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-08-01 | 1978-01-31 | 1978-08-02 | $7700.00 | Window Closed / Lapsed |