Patent US3334762A successfully refreshed from Google Patents.
US3334762A
Expired / Lapsed
US
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Bale grab and hoist apparatus
Assignee: Individual
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Filing: 1964-05-19
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Granted: 1967-08-08
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Expires: 1984-05-19
Abstract
No abstract record available.
Inventors
- 👤 Davis Dennis John
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 20:55
CPC Classifications
B; B66; B66F; B66F9/00; B66F9/06; B66F9/075; B66F9/12; B66F9/18
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
175 words
A BALE GRAP AND HOIST APPARATUS COMPRISING A MOBILE CHASSIS, A BALE GRAB MEANS MOUNTED ON THE CHASSIS FOR UPWARD AND DOWNWARD MOVEMENT, A CYLINDER AND PISTON UNIT OPERABLY CONNECTED TO THE BALE GRAB MEANS FOR EFFECTING SAID UPWARD AND DOWNWARD MOVEMENT, SAID BALE GRAB MEANS INCLUDING A PAIR OF SPACED APART PARALLEL SHAFTS MOUNTED FOR ROTATION RELATIVE TO SAID CHASSIS, AXIALLY SPACED HOOKS ON EACH SHAFT, A SECOND CYLINDER AND PISTON UNIT CARRIED BY SAID CHASSIS, LINKAGE MEANS INTERCONNECTING SAID SECOND PISTON AND CYLINDER UNIT WHEREBY MOVEMENT OF THE PISTON IN ONE DIRECTION TURNS THE SHAFTS TO MOVE THE HOOKS TOWARD EACH OTHER FOR ENGAGING A BALE WHILE MOVEMENT OF THE PISTON IN THE OPPOSITE DIRECTION TURNS THE SHAFTS TO MOVE THE HOOKS AWAY FROM EACH OTHER FOR DISENGAGING A BALE, SAID LINKAGE MEANS INCLUDING A PIVOTALLY MOUNTED TRIANGULAR PLATE, THE PISTON OF THE SECOND CYLINDER AND PISTON UNIT BEING PIVOTALLY CONNECTED TO THE APEX OF THE TRIANGULAR PLATE AND CONNECTING RODS PIVOTALLY CONNECTED TO THE OTHER CORNERS OF THE PLATE AND SHAFTS, RESPECTIVELY.
Claim 2
Dependent Claim
175 words
A BALE GRAP AND HOIST APPARATUS COMPRISING A MOBILE CHASSIS, A BALE GRAB MEANS MOUNTED ON THE CHASSIS FOR UPWARD AND DOWNWARD MOVEMENT, A CYLINDER AND PISTON UNIT OPERABLY CONNECTED TO THE BALE GRAB MEANS FOR EFFECTING SAID UPWARD AND DOWNWARD MOVEMENT, SAID BALE GRAB MEANS INCLUDING A PAIR OF SPACED APART PARALLEL SHAFTS MOUNTED FOR ROTATION RELATIVE TO SAID CHASSIS, AXIALLY SPACED HOOKS ON EACH SHAFT, A SECOND CYLINDER AND PISTON UNIT CARRIED BY SAID CHASSIS, LINKAGE MEANS INTERCONNECTING SAID SECOND PISTON AND CYLINDER UNIT WHEREBY MOVEMENT OF THE PISTON IN ONE DIRECTION TURNS THE SHAFTS TO MOVE THE HOOKS TOWARD EACH OTHER FOR ENGAGING A BALE WHILE MOVEMENT OF THE PISTON IN THE OPPOSITE DIRECTION TURNS THE SHAFTS TO MOVE THE HOOKS AWAY FROM EACH OTHER FOR DISENGAGING A BALE, SAID LINKAGE MEANS INCLUDING A PIVOTALLY MOUNTED TRIANGULAR PLATE, THE PISTON OF THE SECOND CYLINDER AND PISTON UNIT BEING PIVOTALLY CONNECTED TO THE APEX OF THE TRIANGULAR PLATE AND CONNECTING RODS PIVOTALLY CONNECTED TO THE OTHER CORNERS OF THE PLATE AND SHAFTS, RESPECTIVELY.
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) | 1970-08-07 | 1971-02-06 | 1971-08-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-08-07 | 1975-02-06 | 1975-08-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-08-07 | 1979-02-06 | 1979-08-08 | $7700.00 | Window Closed / Lapsed |