US3325849A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Mechanical agitator for a vacuum cleaner
Assignee: Westinghouse Electric Corp
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Filing: 1964-09-08
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Granted: 1967-06-20
•
Expires: 1984-09-08
Abstract
No abstract record available.
Inventors
- 👤 Robert S Waters
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 22:33
CPC Classifications
A; A47; A47L; A47L5/00; A47L5/12; A47L5/22; A47L5/28; A47L5/30
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
113 words
A BRUSH ROLL FOR SUCTION CLEANING APPARATUS COMPRISING: AN ELONGATED BODY MEMBER HAVING NONCIRCULAR END PORTIONS AND A LONGITUDINAL PASSAGE THERETHROUGH, A BEARING STRUCTURE PROVIDED IN EACH END OF SAID BODY MEMBER SUPPORTING THE SAME FOR ROTATIONAL MOVEMENT, EACH SAID BEARING STRUCTURE BEING PROVIDED WITH A LONGITUDINAL BORE FOR RECEIVING ONE END OF A SHAFT ADAPTED TO BE MOUNTED IN THE CLEANING APPARATUS AND HAVING A CIRCUMFERENTIALLY CONTINUOUS PROJECTION INTERMEDIATE TERMINAL PORTIONS, SAID NONCIRCULAR END PORTIONS BEING ADAPTED TO COOPERATE WITH SAID NONCIRCULAR PROJECTION FOR EFFECTING SIMULTANEOUS ROTATION OF SAID BEARING STRUCTURE WITH SAID BODY MEMBER AND FOR PERMITTING TILTING OF SAID BEARING WITH RESPECT TO ALL SIDES OF SAID NONCIRCULAR END PORTION.
Claim 2
Dependent Claim
113 words
A BRUSH ROLL FOR SUCTION CLEANING APPARATUS COMPRISING: AN ELONGATED BODY MEMBER HAVING NONCIRCULAR END PORTIONS AND A LONGITUDINAL PASSAGE THERETHROUGH, A BEARING STRUCTURE PROVIDED IN EACH END OF SAID BODY MEMBER SUPPORTING THE SAME FOR ROTATIONAL MOVEMENT, EACH SAID BEARING STRUCTURE BEING PROVIDED WITH A LONGITUDINAL BORE FOR RECEIVING ONE END OF A SHAFT ADAPTED TO BE MOUNTED IN THE CLEANING APPARATUS AND HAVING A CIRCUMFERENTIALLY CONTINUOUS PROJECTION INTERMEDIATE TERMINAL PORTIONS, SAID NONCIRCULAR END PORTIONS BEING ADAPTED TO COOPERATE WITH SAID NONCIRCULAR PROJECTION FOR EFFECTING SIMULTANEOUS ROTATION OF SAID BEARING STRUCTURE WITH SAID BODY MEMBER AND FOR PERMITTING TILTING OF SAID BEARING WITH RESPECT TO ALL SIDES OF SAID NONCIRCULAR END PORTION.
References Cited (Backward Citations)
US278404A
Cited
US1325849A
Cited
CH15036A
Cited
US1638797A
Cited
US2244943A
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FR991402A
Cited
US2609253A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-06-19 | 1970-12-19 | 1971-06-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-06-19 | 1974-12-19 | 1975-06-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-06-19 | 1978-12-19 | 1979-06-20 | $7700.00 | Window Closed / Lapsed |