US3230645A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Snow removal attachment for sweeping machines
Assignee: Tennant Co
•
Filing: 1963-06-26
•
Granted: 1966-01-25
•
Expires: 1983-06-26
Abstract
No abstract record available.
Inventors
- 👤 Mac W Lutz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 17:48
CPC Classifications
E; E01; E01H; E01H5/00; E01H5/04; E01H5/08; E01H5/09; E01H5/098; E01H5/06; E01H6/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
145 words
THE COMBINATION WITH A SELF-PROPELLED POWER SWEEPER HAVING A MAIN FRAME, MEANS FOR MOVING SAID POWER SWEEPER AND FRAME ALONG A SUPPORTING SURFACE, A POWERED ROTARY BRUSH MOUNTED ON SAID FRAME AND EXTENDING GENERALLY TRANSVERSE TO THE DIRECTION OF MOVEMENT OF SAID FRAME, SAID BRUSH BEING MOUNTED BETWEEN THE FRONT AND REAR PORTIONS OF SAID FRAME, OF: A PAIR OF ARMS MOUNTED ADJACENT THE FORWARD PORTIONS OF SAID FRAME, SAID ARMS BEING MOVABLE BETWEEN RAISED AND LOWERED POSITIONS, AN ATTACHMENT FRAME MOUNTED BETWEEN SAID ARMS, SAID ATTACHMENT FRAME INCLUDING A PAIR OF LUGS THAT FIT WITHIN A PROVIDED NOTCH ON EACH OF SAID ARMS, SLOTTED ADJUSTMENT MEANS AT THE UPPER END OF SAID ATTACHMENT FRAME ADJUSTABLY CONNECTING SAID FRAME AND SAID ARMS FOR LIMITED PIVOTAL MOVEMENT OF THE FRAME ABOUT THE LUGS WITH RESPECT TO THE ARMS, POWER MEANS FOR MOVING SAID ARMS BETWEEN THEIR
Claim 2
Dependent Claim
145 words
THE COMBINATION WITH A SELF-PROPELLED POWER SWEEPER HAVING A MAIN FRAME, MEANS FOR MOVING SAID POWER SWEEPER AND FRAME ALONG A SUPPORTING SURFACE, A POWERED ROTARY BRUSH MOUNTED ON SAID FRAME AND EXTENDING GENERALLY TRANSVERSE TO THE DIRECTION OF MOVEMENT OF SAID FRAME, SAID BRUSH BEING MOUNTED BETWEEN THE FRONT AND REAR PORTIONS OF SAID FRAME, OF: A PAIR OF ARMS MOUNTED ADJACENT THE FORWARD PORTIONS OF SAID FRAME, SAID ARMS BEING MOVABLE BETWEEN RAISED AND LOWERED POSITIONS, AN ATTACHMENT FRAME MOUNTED BETWEEN SAID ARMS, SAID ATTACHMENT FRAME INCLUDING A PAIR OF LUGS THAT FIT WITHIN A PROVIDED NOTCH ON EACH OF SAID ARMS, SLOTTED ADJUSTMENT MEANS AT THE UPPER END OF SAID ATTACHMENT FRAME ADJUSTABLY CONNECTING SAID FRAME AND SAID ARMS FOR LIMITED PIVOTAL MOVEMENT OF THE FRAME ABOUT THE LUGS WITH RESPECT TO THE ARMS, POWER MEANS FOR MOVING SAID ARMS BETWEEN THEIR
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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) | 1969-01-24 | 1969-07-26 | 1970-01-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-01-24 | 1973-07-26 | 1974-01-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-01-24 | 1977-07-26 | 1978-01-25 | $7700.00 | Window Closed / Lapsed |