US3211364A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Blower wheel
Assignee: Lau Blower Co
•
Filing: 1963-10-30
•
Granted: 1965-10-12
•
Expires: 1983-10-30
Abstract
No abstract record available.
Inventors
- 👤 William H Wentling
- 👤 Joseph C Gantner
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 07:32
CPC Classifications
F; F04; F04D; F04D29/00; F04D29/26; F04D29/28; F04D29/281; F04D29/282; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49316; Y10T29/4932; Y10T29/49321
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
128 words
AN INTEGRAL BLOWER WHEEL OF THE CHARACTER DESCRIBED MADE SUBSTANTIALLY ENTIRELY OF SHEET METAL PARTS COMPRISING, A PLURALITY OF SEPARATELY FORMED PARALLEL SHEET METAL BLADES CIRCUMFERENTIALLY ARRANGED TO FORM A WHEEL HAVING A PREDETERMINED DIAMETER, EACH SAID BLADE HAVING A SMOOTH PUMPING BLADE SURFACE WITH RADIALLY OUTWARDLY EXTENDING FLANGE PORTIONS AT EACH END THEREOF, SHEET METAL RING MEANS AT EACH END OF EACH SAID BLADE ENCOMPASSING AND SUPPORTING SAID FLANGE PORTIONS TO LOCK SAID FLANGE PORTIONS AND SAID RING MEANS AGAINST RELATIVE MOVEMENT IN ANY DIRECTION, SAID RING MEANS HAVING WELD MATERIAL MEANS DISPOSED BETWEEN THE ENTIRE AREA OF ENCOMPASSING CONTACT BETWEEN SAID FLANGE PORTIONS AND SAID RING MEANS AND PROVIDING A CONTINUOUS ANNULAR RING OF WELD MATERIAL SECURELY LOCKING SAID SEPARATING FLANGE PORTIONS TOGETHER AND TO SAID
Claim 2
Dependent Claim
128 words
AN INTEGRAL BLOWER WHEEL OF THE CHARACTER DESCRIBED MADE SUBSTANTIALLY ENTIRELY OF SHEET METAL PARTS COMPRISING, A PLURALITY OF SEPARATELY FORMED PARALLEL SHEET METAL BLADES CIRCUMFERENTIALLY ARRANGED TO FORM A WHEEL HAVING A PREDETERMINED DIAMETER, EACH SAID BLADE HAVING A SMOOTH PUMPING BLADE SURFACE WITH RADIALLY OUTWARDLY EXTENDING FLANGE PORTIONS AT EACH END THEREOF, SHEET METAL RING MEANS AT EACH END OF EACH SAID BLADE ENCOMPASSING AND SUPPORTING SAID FLANGE PORTIONS TO LOCK SAID FLANGE PORTIONS AND SAID RING MEANS AGAINST RELATIVE MOVEMENT IN ANY DIRECTION, SAID RING MEANS HAVING WELD MATERIAL MEANS DISPOSED BETWEEN THE ENTIRE AREA OF ENCOMPASSING CONTACT BETWEEN SAID FLANGE PORTIONS AND SAID RING MEANS AND PROVIDING A CONTINUOUS ANNULAR RING OF WELD MATERIAL SECURELY LOCKING SAID SEPARATING FLANGE PORTIONS TOGETHER AND TO SAID
References Cited (Backward Citations)
US2932445A
Cited
US1951122A
Cited
US2071583A
Cited
US2231062A
Cited
US2272695A
Cited
US2537805A
Cited
US2628769A
Cited
US2656155A
Cited
US2745171A
Cited
US2711285A
Cited
US2592851A
Cited
US2957236A
Cited
US2852182A
Cited
US3004326A
Cited
US2958459A
Cited
US3010187A
Cited
US3147541A
Cited
US3112564A
Cited
US3165258A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-10-11 | 1969-04-12 | 1969-10-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-10-11 | 1973-04-12 | 1973-10-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-10-11 | 1977-04-12 | 1977-10-12 | $7700.00 | Window Closed / Lapsed |