US3390516A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Collapsible rake
Assignee: DALE L BURROWS
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Filing: 1965-12-09
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Granted: 1968-07-02
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Expires: 1985-12-09
Abstract
No abstract record available.
Inventors
- 👤 Dale L Burrows
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 20:26
CPC Classifications
A; A01; A01D; A01D7/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
221 words
A COLLAPSIBLE RAKE COMPRISING: (A) AN ELONGATED HOUSING BEING OPEN AT BOTH ENDS; (B) A SHAFT LONGER THAN SAID HOUSING AND EXTENDING THROUGH SAID HOUSING AND WHEREIN: (1) SAID SHAFT HAS AN ENLARGED PORTION CORRESPONDING TO THE INTERIOR CONTOUR OF SAID HOUSING EXTENDING FROM ONE END OF SAID SHAFT A DISTANCE ALONG SAID SHAFT, AND (2) SAID ENLARGED PORTION OF SAID SHAFT BEING ADAPTED TO PROVIDE A BUSHING FOR MOVEMENT OF SAID SHAFT WITH RESPECT TO SAID HOUSING; (C) A COLLAR SLIDABLY MOUNTED ON SAID SHAFT AND POSITIONABLE BETWEEN THE OTHER END OF SAID SHAFT AND SAID ENLARGED PORTION OF SAID SHAFT AND SAID COLLAR HAVING AN OUTER CONTOUR CONFORMING TO THE INTERIOR OF SAID HOUSING PROVIDING A SECOND BUSHING BETWEEN SAID SHAFT AND SAID HOUSING; (D) A FOLDABLE RAKE HEAD ASSEMBLY ADAPTED TO BE DRAWN INTO AND WITHDRAWN FROM ONE END OF SAID HOUSING AND COMPRISING: (1) FIRST AND SECOND RAKE MEMBERS, (2) FIRST AND SECOND SUPPORTING ARM MEMBERS, (3) A FIRST END OF EACH OF SAID RAKE MEMBERS BEING PIVOTABLY CONNECTED TO THE SAID OTHER END OF SAID SHAFT, (4) SAID FIRST SUPPORTING ARM MEMBER BEING PIVOTABLY CONNECTED AT ITS ENDS TO SAID FIRST RAKE MEMBER AND SAID COLLAR, AND (5) SAID SECOND SUPPORTING ARM MEMBER BEING PIVOTPIVOTABLY CONNECTED AT ITS ENDS TO SAID SECOND RAKE MEMBER SAID COLLAR.
Claim 2
Dependent Claim
221 words
A COLLAPSIBLE RAKE COMPRISING: (A) AN ELONGATED HOUSING BEING OPEN AT BOTH ENDS; (B) A SHAFT LONGER THAN SAID HOUSING AND EXTENDING THROUGH SAID HOUSING AND WHEREIN: (1) SAID SHAFT HAS AN ENLARGED PORTION CORRESPONDING TO THE INTERIOR CONTOUR OF SAID HOUSING EXTENDING FROM ONE END OF SAID SHAFT A DISTANCE ALONG SAID SHAFT, AND (2) SAID ENLARGED PORTION OF SAID SHAFT BEING ADAPTED TO PROVIDE A BUSHING FOR MOVEMENT OF SAID SHAFT WITH RESPECT TO SAID HOUSING; (C) A COLLAR SLIDABLY MOUNTED ON SAID SHAFT AND POSITIONABLE BETWEEN THE OTHER END OF SAID SHAFT AND SAID ENLARGED PORTION OF SAID SHAFT AND SAID COLLAR HAVING AN OUTER CONTOUR CONFORMING TO THE INTERIOR OF SAID HOUSING PROVIDING A SECOND BUSHING BETWEEN SAID SHAFT AND SAID HOUSING; (D) A FOLDABLE RAKE HEAD ASSEMBLY ADAPTED TO BE DRAWN INTO AND WITHDRAWN FROM ONE END OF SAID HOUSING AND COMPRISING: (1) FIRST AND SECOND RAKE MEMBERS, (2) FIRST AND SECOND SUPPORTING ARM MEMBERS, (3) A FIRST END OF EACH OF SAID RAKE MEMBERS BEING PIVOTABLY CONNECTED TO THE SAID OTHER END OF SAID SHAFT, (4) SAID FIRST SUPPORTING ARM MEMBER BEING PIVOTABLY CONNECTED AT ITS ENDS TO SAID FIRST RAKE MEMBER AND SAID COLLAR, AND (5) SAID SECOND SUPPORTING ARM MEMBER BEING PIVOTPIVOTABLY CONNECTED AT ITS ENDS TO SAID SECOND RAKE MEMBER SAID COLLAR.
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) | 1971-07-02 | 1972-01-01 | 1972-07-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-07-02 | 1976-01-01 | 1976-07-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-07-02 | 1980-01-01 | 1980-07-02 | $7700.00 | Window Closed / Lapsed |