US3138818A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Traveling overhead suction cleaner
Assignee: Parks Cramer Co
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Filing: 1962-07-02
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Granted: 1964-06-30
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Expires: 1982-07-02
Abstract
No abstract record available.
Inventors
- 👤 Jr Robert L Black
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 23:33
CPC Classifications
D; D01; D01H; D01H11/00; D01H11/005; D01H11/006
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
110 words
A TRAVELING SUCTION CLEANER ADAPTED TO BE MOUNTED ON A TRACK EXTENDING OVER A TEXTILE MANUFACTURING OPERATION IN A TEXTILE MILL AND COMPRISING; (A) A CARRIAGE, (B) AN ELECTRIC MOTOR ON SAID CARRIAGE, (C) FIRST AND SECOND SPACED AIR IMPELLERS DRIVEN BY SAID MOTOR, (D) A FIRST HOUSING ENCLOSING SAID FIRST IMPELLER AND FORMING AN AIR INLET AT ONE END THEREOF AND HAVING AN AIR OUTLET, (E) A SECOND, VOLUTE HOUSING ENCLOSING SAID SECOND IMPELLER AND SPACED FROM SAID FIRST HOUSING, (F) MEANS CONNECTING BOTH HOUSINGS TO SAID CARRIAGE, (G) SAID SECOND HOUSING HAVING AN AIR INLET AND AN AIR OUTLET, (H) A COLLECTION CHAMBER CONNECTED TO SAID LAST-NAMED OUTLET,
Claim 2
Dependent Claim
110 words
A TRAVELING SUCTION CLEANER ADAPTED TO BE MOUNTED ON A TRACK EXTENDING OVER A TEXTILE MANUFACTURING OPERATION IN A TEXTILE MILL AND COMPRISING; (A) A CARRIAGE, (B) AN ELECTRIC MOTOR ON SAID CARRIAGE, (C) FIRST AND SECOND SPACED AIR IMPELLERS DRIVEN BY SAID MOTOR, (D) A FIRST HOUSING ENCLOSING SAID FIRST IMPELLER AND FORMING AN AIR INLET AT ONE END THEREOF AND HAVING AN AIR OUTLET, (E) A SECOND, VOLUTE HOUSING ENCLOSING SAID SECOND IMPELLER AND SPACED FROM SAID FIRST HOUSING, (F) MEANS CONNECTING BOTH HOUSINGS TO SAID CARRIAGE, (G) SAID SECOND HOUSING HAVING AN AIR INLET AND AN AIR OUTLET, (H) A COLLECTION CHAMBER CONNECTED TO SAID LAST-NAMED OUTLET,
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) | 1967-06-30 | 1967-12-30 | 1968-06-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-06-30 | 1971-12-30 | 1972-06-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-06-30 | 1975-12-30 | 1976-06-30 | $7700.00 | Window Closed / Lapsed |