Patent US4768088A successfully refreshed from Google Patents.
Patent US3226759A successfully refreshed from Google Patents.
US3226759A
Expired / Lapsed
US
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Device for changing a floor treating machine from a waxing machine to a vacuum cleaner
Assignee: Mauz and Pfeiffer GmbH and Co KG
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Filing: 1962-12-19
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Granted: 1966-01-04
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Expires: 1982-12-19
Abstract
No abstract record available.
Inventors
- 👤 Worwag Eberhard
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 12:01
CPC Classifications
A; A47; A47L; A47L11/00; A47L11/40; A47L11/4036; A47L11/4044; A47L11/02; A47L11/20; A47L11/202; A47L11/2025; A47L11/204; A47L11/4063; A47L11/4069
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
148 words
FOR USE IN CONNECTION WITH A FLOOR TREATING IMPLEMENT, ESPECIALLY WAXING MACHINE, WHICH HAS A HOUSING, A ROTARY BRUSH ROTATABLE WITHIN AND PROTRUDING DOWNWARDLY FROM SAID HOUSING, A MOTOR ARRANGED WITHIN SAID HOUSING AND DRIVINGLY CONNECTED TO SAID BRUSH, AND A HANDLE CONNECTED TO SAID HOUSING FOR GUIDING SAID IMPLEMENT OVER THE FLOOR TO BE TREATED; AN ANNULAR MEMBER CONNECTED TO THE LOWER PORTION OF SAID HOUSING AND FORMING AN INVERTED ANNULAR TROUGH SURROUNDING SAID DOWNWARDLY PROTRUDING BRUSH PORTION AND HAVING A SUBSTANTIALLY HORIZONTAL EXTENSION INDEPENDENT OF SAID OF SAID HANDLE AND LOCATED AT SUBSTANTIALLY THE LEVEL OF SAID ANNULAR MEMBER, AND A SUCTION UNIT INCLUDING A MOTOR AND BEING SUPPORTED BY SAID EXTENSION WHEREBY SAID SUCTION UNIT IS LOCATED LOW ABOVE THE FLOOR TO BE TREATED, SAID EXTENSION UNIT HAVING A CONDUIT THEREIN DIRECTLY CONNECTING SAID TROUGH WITH SAID SUCTION UNIT AND THEREBY ESTABLISHING A SHORT CONNECTION
Claim 2
Dependent Claim
148 words
FOR USE IN CONNECTION WITH A FLOOR TREATING IMPLEMENT, ESPECIALLY WAXING MACHINE, WHICH HAS A HOUSING, A ROTARY BRUSH ROTATABLE WITHIN AND PROTRUDING DOWNWARDLY FROM SAID HOUSING, A MOTOR ARRANGED WITHIN SAID HOUSING AND DRIVINGLY CONNECTED TO SAID BRUSH, AND A HANDLE CONNECTED TO SAID HOUSING FOR GUIDING SAID IMPLEMENT OVER THE FLOOR TO BE TREATED; AN ANNULAR MEMBER CONNECTED TO THE LOWER PORTION OF SAID HOUSING AND FORMING AN INVERTED ANNULAR TROUGH SURROUNDING SAID DOWNWARDLY PROTRUDING BRUSH PORTION AND HAVING A SUBSTANTIALLY HORIZONTAL EXTENSION INDEPENDENT OF SAID OF SAID HANDLE AND LOCATED AT SUBSTANTIALLY THE LEVEL OF SAID ANNULAR MEMBER, AND A SUCTION UNIT INCLUDING A MOTOR AND BEING SUPPORTED BY SAID EXTENSION WHEREBY SAID SUCTION UNIT IS LOCATED LOW ABOVE THE FLOOR TO BE TREATED, SAID EXTENSION UNIT HAVING A CONDUIT THEREIN DIRECTLY CONNECTING SAID TROUGH WITH SAID SUCTION UNIT AND THEREBY ESTABLISHING A SHORT CONNECTION
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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) | 1969-01-03 | 1969-07-05 | 1970-01-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-01-03 | 1973-07-05 | 1974-01-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-01-03 | 1977-07-05 | 1978-01-04 | $7700.00 | Window Closed / Lapsed |