US3197798A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Scrubbing machine
Assignee: Tennant Co
•
Filing: 1963-01-28
•
Granted: 1965-08-03
•
Expires: 1983-01-28
Abstract
No abstract record available.
Inventors
- 👤 Neil F Brown
- 👤 Mac W Lutz
- 👤 Harlie J Kimmerle
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 19:15
CPC Classifications
A; A47; A47L; A47L11/00; A47L11/40; A47L11/4013; A47L11/4016; A47L11/29; A47L11/30; A47L11/302; A47L11/4036; A47L11/4038; A47L11/4041; A47L11/4044; A47L11/4052; A47L11/4055; A47L11/4058; A47L11/4063; A47L11/4069; A47L11/408; A47L11/4088; E; E01; E01H; E01H1/00; E01H1/08; E01H1/0827; E01H1/0854
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
155 words
A SWEEPING MACHINE INCLUDING A WHEEL SUPPORTED SWEEPER FRAME, SAID SWEEPER FRAME HAVING A ROTARY FLOOR MAINTENANCE IMPLEMENT ENCLOSURE THAT IS OPEN AT THE BOTTOM AND HAS AN UNOBSTRUCTED EJECTION OPENING, A ROTARY FLOOR MAINTENANCE IMPLEMENT MOUNTED IN SAID ENCLOSURE, A SCRUBBING ATTACHMENT, MEANS ON THE SWEEPER FRAME FOR LIFTING AND DETACHABLY CARRYING SAID ATTACHMENT ADJACENT SAID UNOBSTRUCTED OPENING, SAID ATTACHMENT ININCLUDING AN ATTACHMENT FRAME, A DIRTY WATER COLLECTION TANK MOUNTED ON SAID ATTACHMENT FRAME, MEANS CONNECTED TO THE ATTACHMENT FRAME AND EXTENDING ADJACENT TO SAID UNOBSTRUCTED OPENING FOR COLLECTING LIQUID FROM THE SURFACE SCRUBBED BY SAID IMPLEMENT, SUCTION APPLYING MEANS FLUIDLY CONNECTED TO THE COLLECTION TANK FOR APPLYING A SUCTION THERETO, CONDUIT MEANS CONNECTED TO THE COLLECTION TANK AND EXTENDING ADJACENT TO THE COLLECTION MEANS FOR WITHDRAWING LIQUID FROM THE COLLECTION MEANS AND RETURNING IT TO THE COLLECTION TANK, AND POWER MEANS ON THE SWEEPER FRAME DRIVINGLY CONNECTED TO SAID IMPLEMENT FOR ROTATING IT.
Claim 2
Dependent Claim
155 words
A SWEEPING MACHINE INCLUDING A WHEEL SUPPORTED SWEEPER FRAME, SAID SWEEPER FRAME HAVING A ROTARY FLOOR MAINTENANCE IMPLEMENT ENCLOSURE THAT IS OPEN AT THE BOTTOM AND HAS AN UNOBSTRUCTED EJECTION OPENING, A ROTARY FLOOR MAINTENANCE IMPLEMENT MOUNTED IN SAID ENCLOSURE, A SCRUBBING ATTACHMENT, MEANS ON THE SWEEPER FRAME FOR LIFTING AND DETACHABLY CARRYING SAID ATTACHMENT ADJACENT SAID UNOBSTRUCTED OPENING, SAID ATTACHMENT ININCLUDING AN ATTACHMENT FRAME, A DIRTY WATER COLLECTION TANK MOUNTED ON SAID ATTACHMENT FRAME, MEANS CONNECTED TO THE ATTACHMENT FRAME AND EXTENDING ADJACENT TO SAID UNOBSTRUCTED OPENING FOR COLLECTING LIQUID FROM THE SURFACE SCRUBBED BY SAID IMPLEMENT, SUCTION APPLYING MEANS FLUIDLY CONNECTED TO THE COLLECTION TANK FOR APPLYING A SUCTION THERETO, CONDUIT MEANS CONNECTED TO THE COLLECTION TANK AND EXTENDING ADJACENT TO THE COLLECTION MEANS FOR WITHDRAWING LIQUID FROM THE COLLECTION MEANS AND RETURNING IT TO THE COLLECTION TANK, AND POWER MEANS ON THE SWEEPER FRAME DRIVINGLY CONNECTED TO SAID IMPLEMENT FOR ROTATING IT.
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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) | 1968-08-02 | 1969-02-01 | 1969-08-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-08-02 | 1973-02-01 | 1973-08-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-08-02 | 1977-02-01 | 1977-08-03 | $7700.00 | Window Closed / Lapsed |