US3152075A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Trash retainer for movable trash rake
Assignee: Allis Chalmers Corp
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Filing: 1960-06-29
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Granted: 1964-10-06
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Expires: 1980-06-29
Abstract
No abstract record available.
Inventors
- 👤 Frank J Gross
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 06:15
CPC Classifications
E; E02; E02B; E02B8/00; E02B8/02; E02B8/023; E02B8/026
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
164 words
A MECHANISM FOR CLEANING A TRASH RACK COMPRISING: A SUPPORT FRAME POSITIONED ABOVE SAID RACK; A TRASH DISPOSAL CHUTE ON SAID SUPPORT FRAME: GUIDE MEANS ATTACHED TO SAID FRAME AND EXTENDING DOWNWARD FROM SAID DISPOSAL CHUTE TO THE UPPER END OF SAID RACK; A RAKE MEMBER FOR REMOVING TRASH FROM SAID RACK; MEANS CONNECTING SAID RAKE MEMBER TO SAID FRAME FOR SELECTIVELY RAISING AND LOWERNG SAID RAKE MEMBER RELATIVE TO SAID RACK, THE MOVEMENT OF SAID RAKE BEING GUIDED BY BOTH SAID RACK AND SAID GUIDE MEANS BETWEEN THE LOWER END OF SAID RACK AND SAID DISPOSAL CHUTE FOR TRASH DISPOSAL THEREIN; A TRASH RETAINING CURTAIN MEMBER CONNECTED TO SAID GUIDE MEANS AND MOVABLE THEREON BETWEEN SAID DISPOSAL CHUTE AND SAID RACK; A FIRST STOP ENGAGEABLE WITH SAID CURTAIN MEMBER TO LIMIT DOWNWARD MOVEMENT THEREOF BENEATH A POSITION ADJACENT TO THE UPPER END OF SAID RACK; A SECOND STOP ENGAGEABLE WITH SAID CURTAIN MEMBER TO PROHIBIT UPWARD MOVEMENT THEREOF ABOVE A POSITION IMMEDIATELY BENEATH
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) | 1967-10-06 | 1968-04-06 | 1968-10-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-10-06 | 1972-04-06 | 1972-10-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-10-06 | 1976-04-06 | 1976-10-06 | $7700.00 | Window Closed / Lapsed |