US3268942A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Suction cleaning nozzle
Assignee: —
•
Filing: —
•
Granted: 1966-08-30
•
Expires: 1983-08-30
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 06:24
CPC Classifications
A; A47; A47L; A47L9/00; A47L9/02; A47L9/08
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
157 words
THE COMBINATION WITH A MOTOR OPERATED SUCTION CLEANING MACHINE HAVING A SUCTION INLET AND AN EXHAUST OUTLET, A SUCTION HEAD HAVING AN AIR INLET AND MEANS ATTACHED TO THE EXHAUST OUTLET OF THE MACHINE AND POSITIONED WITHIN THE SUCTION HEAD TO COMB THE PILE OF THE FLOOR COVERING DURING THE SUCTION ACTION IN THE HEAD AND TO COMB AND LIFT THE PILE AND FREE THE DUST AND DIRT ADJACENT TO THE WEB OF THE FLOOR COVERING FOR ACTION UPON IT BY THE AIR SUCTION WITH THE SUCTION HEAD, SAID MEANS INCLUDING A CONDUIT ADJUSTABLY POSITIONED WITHIN SAID HEAD AND SUBSTANTIALLY CONFORMING TO THE CONTOUR OF SAID HEAD AND HEAD AIR INLET; SAID CONDUIT HAVING A PLURALITY OF DEPENDING CLOSELY SPACED, FLEXIBLE, HOLLOW TUBES DEPENDING THEREFROM AND PROJECTING BELOW THE PLANE FORMED BY THE SUCTION HEAD AIR INLET, SAID PLURALITY OF OPEN-ENDED TUBES BEING ARRANGED TO ACT AS COMBS AND TO DELIVER AIR UNDER PRESSURE INTO THE PILE.
Claim 2
Dependent Claim
157 words
THE COMBINATION WITH A MOTOR OPERATED SUCTION CLEANING MACHINE HAVING A SUCTION INLET AND AN EXHAUST OUTLET, A SUCTION HEAD HAVING AN AIR INLET AND MEANS ATTACHED TO THE EXHAUST OUTLET OF THE MACHINE AND POSITIONED WITHIN THE SUCTION HEAD TO COMB THE PILE OF THE FLOOR COVERING DURING THE SUCTION ACTION IN THE HEAD AND TO COMB AND LIFT THE PILE AND FREE THE DUST AND DIRT ADJACENT TO THE WEB OF THE FLOOR COVERING FOR ACTION UPON IT BY THE AIR SUCTION WITH THE SUCTION HEAD, SAID MEANS INCLUDING A CONDUIT ADJUSTABLY POSITIONED WITHIN SAID HEAD AND SUBSTANTIALLY CONFORMING TO THE CONTOUR OF SAID HEAD AND HEAD AIR INLET; SAID CONDUIT HAVING A PLURALITY OF DEPENDING CLOSELY SPACED, FLEXIBLE, HOLLOW TUBES DEPENDING THEREFROM AND PROJECTING BELOW THE PLANE FORMED BY THE SUCTION HEAD AIR INLET, SAID PLURALITY OF OPEN-ENDED TUBES BEING ARRANGED TO ACT AS COMBS AND TO DELIVER AIR UNDER PRESSURE INTO THE PILE.
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) | 1969-08-29 | 1970-02-28 | 1970-08-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-08-29 | 1974-02-28 | 1974-08-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-08-29 | 1978-02-28 | 1978-08-30 | $7700.00 | Window Closed / Lapsed |