Patent US3278061A successfully refreshed from Google Patents.
US3278061A
Expired / Lapsed
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Hand truck
Assignee: Honeywell International Inc
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Filing: 1964-02-03
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Granted: 1966-10-11
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Expires: 1984-02-03
Abstract
No abstract record available.
Inventors
- 👤 Harold C Christensen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 21:15
CPC Classifications
B; B62; B62B; B62B1/00; B62B1/26; B62B1/264; B62B2202/00; B62B2202/02; B62B2203/00; B62B2203/70
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
190 words
A HAND TRUCK COMPRISING: (A) A FRAME ASSEMBLY, ADAPTED TO SUPPORT A CONTAINER, PROVIDED AT ITS UPPER END WITH A HANDLE BAR MEMBER AND AT ITS LOWER END WITH A PAN ADAPTED TO BE INSERTED UNDER THE CONTAINER TO BE LIFTED AND TO SUPPORT THE CONTAINER ON THE TRUCK; (B) A GRIP ARM CONNECTED TO THE FRAME ASSEMBLY ADAPTED TO ENGAGE AN EDGE OF THE CONTAINER AND HOLD IT AGAINST THE FRAME; (C) LEVER ARMS PIVOTALLY CONNECTED AT ONE END TO THE PAN END OF THE FRAME ASSEMBLY, ADAPTED TO DESCRIBE A VERTICAL SWINGING MOTION; (D) AN AXLE ROTATABLY CONNECTED TO THE AXLE; THE ENDS OF SAID LEVER ARMS OPPOSITE THE PAN END OF THE FRAME ASSEMBLY; (E) WHEELS FIXEDLY CONNECTED TO THE AXLE; (F) A LOCK HANDLE SLIDABLY CONNECTED AT ONE END TO THE FRAME ASSEMBLY BY A PIN-AND-SLOT CONNECTION AND PIVOTALLY CONNECTED AT THE OTHER END TO THE AXLE SO THAT WHEN THE LOCK HANDLE IS AT ITS HIGHEST POINT, THE PAN AND THE WHEELS ARE ON THE SAME LEVEL AND WHEN THE LOCK IS AT ITS LOWEST POINT, THE PAN IS ELEVATED WITH RESPECT TO THE WHEELS.
Claim 2
Dependent Claim
190 words
A HAND TRUCK COMPRISING: (A) A FRAME ASSEMBLY, ADAPTED TO SUPPORT A CONTAINER, PROVIDED AT ITS UPPER END WITH A HANDLE BAR MEMBER AND AT ITS LOWER END WITH A PAN ADAPTED TO BE INSERTED UNDER THE CONTAINER TO BE LIFTED AND TO SUPPORT THE CONTAINER ON THE TRUCK; (B) A GRIP ARM CONNECTED TO THE FRAME ASSEMBLY ADAPTED TO ENGAGE AN EDGE OF THE CONTAINER AND HOLD IT AGAINST THE FRAME; (C) LEVER ARMS PIVOTALLY CONNECTED AT ONE END TO THE PAN END OF THE FRAME ASSEMBLY, ADAPTED TO DESCRIBE A VERTICAL SWINGING MOTION; (D) AN AXLE ROTATABLY CONNECTED TO THE AXLE; THE ENDS OF SAID LEVER ARMS OPPOSITE THE PAN END OF THE FRAME ASSEMBLY; (E) WHEELS FIXEDLY CONNECTED TO THE AXLE; (F) A LOCK HANDLE SLIDABLY CONNECTED AT ONE END TO THE FRAME ASSEMBLY BY A PIN-AND-SLOT CONNECTION AND PIVOTALLY CONNECTED AT THE OTHER END TO THE AXLE SO THAT WHEN THE LOCK HANDLE IS AT ITS HIGHEST POINT, THE PAN AND THE WHEELS ARE ON THE SAME LEVEL AND WHEN THE LOCK IS AT ITS LOWEST POINT, THE PAN IS ELEVATED WITH RESPECT TO THE WHEELS.
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) | 1969-10-10 | 1970-04-11 | 1970-10-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-10-10 | 1974-04-11 | 1974-10-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-10-10 | 1978-04-11 | 1978-10-11 | $7700.00 | Window Closed / Lapsed |