US3148400A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Carpet beating and cleaning machine
Assignee: Mauz and Pfeiffer GmbH and Co KG
•
Filing: 1961-12-20
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Granted: 1964-09-15
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Expires: 1981-12-20
Abstract
No abstract record available.
Inventors
- 👤 Worwag Eberhard
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 12:41
CPC Classifications
A; A47; A47L; A47L5/00; A47L5/12; A47L5/22; A47L5/28; A47L5/30
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
351 words
IN A CARPET BEATING AND CLEANING MACHINE; A HOUSING, SUPPORTING MEANS SUPPORTING SAID HOUSING PREMITTING MOVEMENT OF SAID MACHINE OVER A SURFACE TO BE CLEANED, DOWNWARDLY OPENING AGITATOR CHAMBER MEANS PROVIDED IN THE BOTTOM PORTION OF SAID HOUSING, A CARPET BEATING AND BRUSHING AGITATOR ROTATABLY MOUNTED ON SAID CHAMBER MEANS, SUCTION MEANS MOUNTED IN SAID HOUSING IN SPACED RELATIONSHIP TO SAID CHAMBER MEANS, PASSAGE MEANS COMMUNICATING WITH SAID SUCTION MEANS AND COMPRISING A FIRST SECTION WITH A PORT OPENING EXTERIORLY OF SAID HOUSING AND ALSO COMPRISING A SECOND SECTION BRANCHING OFF FROM SAID FIRST SECTION AND LEADING INTO SAID AGITATOR CHAMBER MEANS, COMMUNICATION OF SAID SECOND SECTION WITH SAID FIRST SECTION BEING INTERRUPTABLE BY INSERTION OF A HOSE-FITTING INTO SAID FIRST SECTION, CLOSURE MEANS FOR SELECTIVELY CLOSING AND OPENING SAID PORT, TUBULAR MEANS INCLUDING A WAND WITH A SUCTION NOZZLE PIVOTALLY CONNECTED THERETO, AND MEANS PROVIDED ON THE TOP WALL PORTION OF SAID HOUSING RELEASABLY ENGAGING SAID NOZZLE ONLY AND DETACHABLY SECURING THE SAME TO SAID TOP WALL PORTION WHILE LEAVING SAID WAND FREE TO TILT RELATIVE TO SAID NOZZLE WHEREBY SAID WAND MAY BE USED AS A HANDLE FOR GUIDING SAID MACHINE AS A CARPET BEATING AND CLEANING MACHINE OVER A SURFACE TO BE CLEANED WHEN SAID PORT IS CLOSED BY SAID CLOSURE MEANS, SAID MEANS COMPRISING A RECESS FORMED IN SAID TOP WALL PORTION AND GENERALLY OF THE CONTOUR OF SAID NOZZLE, SAID NOZZLE HAVING A PERIPHERAL OUTWARDLY EXTENDING RIM, RESILIENT MEAN ARRANGED AT ONE SIDE RECESS FOR DETACHABLE ENGAGEMENT WITH SAID RIM ON ONE SIDE OF THE NOZZLE, AND MEANS CARRIED BY THE HOUSING AND OVERHANGING THE RECESS AT THE OTHER SIDE AND DETACHABLY ENGAGING SAID RIM ON THE SIDES OF SAID NOZZLE IS DISCONNECTED FROM SAID UPPER WALL PORTION BEING CONNECTABLE WITH A FLEXIBLE HOSE HAVING A FITTING RECEIVABLY BY SAID FIRST SECTION OF SAID PASSAGE MEANS SO AS TO INTERRUPT COMMUNICATION BETWEEN SAID FIRST AND SECOND SECTIONS, WHEREBY SAID MACHINE MAY BE USED AS A PURE VACUUM CLEANER WITH THE FULL SUCTION OF SAID SUCTION MEANS ACTING ON SAID FIRST SECTION OF SAID PASSAGE MEANS ONLY.
Claim 2
Dependent Claim
351 words
IN A CARPET BEATING AND CLEANING MACHINE; A HOUSING, SUPPORTING MEANS SUPPORTING SAID HOUSING PREMITTING MOVEMENT OF SAID MACHINE OVER A SURFACE TO BE CLEANED, DOWNWARDLY OPENING AGITATOR CHAMBER MEANS PROVIDED IN THE BOTTOM PORTION OF SAID HOUSING, A CARPET BEATING AND BRUSHING AGITATOR ROTATABLY MOUNTED ON SAID CHAMBER MEANS, SUCTION MEANS MOUNTED IN SAID HOUSING IN SPACED RELATIONSHIP TO SAID CHAMBER MEANS, PASSAGE MEANS COMMUNICATING WITH SAID SUCTION MEANS AND COMPRISING A FIRST SECTION WITH A PORT OPENING EXTERIORLY OF SAID HOUSING AND ALSO COMPRISING A SECOND SECTION BRANCHING OFF FROM SAID FIRST SECTION AND LEADING INTO SAID AGITATOR CHAMBER MEANS, COMMUNICATION OF SAID SECOND SECTION WITH SAID FIRST SECTION BEING INTERRUPTABLE BY INSERTION OF A HOSE-FITTING INTO SAID FIRST SECTION, CLOSURE MEANS FOR SELECTIVELY CLOSING AND OPENING SAID PORT, TUBULAR MEANS INCLUDING A WAND WITH A SUCTION NOZZLE PIVOTALLY CONNECTED THERETO, AND MEANS PROVIDED ON THE TOP WALL PORTION OF SAID HOUSING RELEASABLY ENGAGING SAID NOZZLE ONLY AND DETACHABLY SECURING THE SAME TO SAID TOP WALL PORTION WHILE LEAVING SAID WAND FREE TO TILT RELATIVE TO SAID NOZZLE WHEREBY SAID WAND MAY BE USED AS A HANDLE FOR GUIDING SAID MACHINE AS A CARPET BEATING AND CLEANING MACHINE OVER A SURFACE TO BE CLEANED WHEN SAID PORT IS CLOSED BY SAID CLOSURE MEANS, SAID MEANS COMPRISING A RECESS FORMED IN SAID TOP WALL PORTION AND GENERALLY OF THE CONTOUR OF SAID NOZZLE, SAID NOZZLE HAVING A PERIPHERAL OUTWARDLY EXTENDING RIM, RESILIENT MEAN ARRANGED AT ONE SIDE RECESS FOR DETACHABLE ENGAGEMENT WITH SAID RIM ON ONE SIDE OF THE NOZZLE, AND MEANS CARRIED BY THE HOUSING AND OVERHANGING THE RECESS AT THE OTHER SIDE AND DETACHABLY ENGAGING SAID RIM ON THE SIDES OF SAID NOZZLE IS DISCONNECTED FROM SAID UPPER WALL PORTION BEING CONNECTABLE WITH A FLEXIBLE HOSE HAVING A FITTING RECEIVABLY BY SAID FIRST SECTION OF SAID PASSAGE MEANS SO AS TO INTERRUPT COMMUNICATION BETWEEN SAID FIRST AND SECOND SECTIONS, WHEREBY SAID MACHINE MAY BE USED AS A PURE VACUUM CLEANER WITH THE FULL SUCTION OF SAID SUCTION MEANS ACTING ON SAID FIRST SECTION OF SAID PASSAGE MEANS ONLY.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-09-15 | 1968-03-16 | 1968-09-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-09-15 | 1972-03-16 | 1972-09-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-09-15 | 1976-03-16 | 1976-09-15 | $7700.00 | Window Closed / Lapsed |