US4131210A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Backhoe jaw attachment
Assignee: Individual
•
Filing: 1977-02-25
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Granted: 1978-12-26
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Expires: 1997-02-25
Abstract
Abstract A jaw attachment for a backhoe has a first jaw affixed to the dipper stick of the backhoe and a second jaw pivotally mounted on the dipper stick such that a gripping portion of the second jaw is movable toward and away from a mating gripping portion of the first jaw. The fluid motor mounted on the dipper stick and normally connected to the usual bucket of a backhoe is connected to the second jaw for actuating same. The configuration of the gripping portions of the jaws can be varied in order to accommodate articles of different configurations, such as timbers, pipes, brush, and the like.
Inventors
- 👤 Clifford G. Everson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 18:37
CPC Classifications
B; B66; B66C; B66C1/00; B66C1/10; B66C1/42; B66C1/58; B66C1/585
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
163 words
For use on a backhoe including a dipper stick, a jaw attachment comprising, in combination: (a) a first jaw affixed to the dipper stick of the backhoe; and (b) a second jaw pivotally mounted on the dipper stick of the backhoe for movement toward and away from the first jaw, the first jaw including first pin means for mounting the first jaw on the dipper stick of the backhoe and provided with a plurality of pairs of holes arranged for receiving the first pin means, only one of the pairs of holes receiving the first pin means at a time, the plurality of pairs of holes permitting adjustment of the angle of the first jaw relative to the dipper stick, the first jaw further including second pin means for affixing the first jaw on the dipper stick in cooperation with the first pin means, and for pivotally mounting the second jaw on the dipper stick for swinging movement relative to the first jaw.
Claim 2
Dependent Claim
163 words
For use on a backhoe including a dipper stick, a jaw attachment comprising, in combination: (a) a first jaw affixed to the dipper stick of the backhoe; and (b) a second jaw pivotally mounted on the dipper stick of the backhoe for movement toward and away from the first jaw, the first jaw including first pin means for mounting the first jaw on the dipper stick of the backhoe and provided with a plurality of pairs of holes arranged for receiving the first pin means, only one of the pairs of holes receiving the first pin means at a time, the plurality of pairs of holes permitting adjustment of the angle of the first jaw relative to the dipper stick, the first jaw further including second pin means for affixing the first jaw on the dipper stick in cooperation with the first pin means, and for pivotally mounting the second jaw on the dipper stick for swinging movement relative to the first jaw.
Claim 3
Dependent Claim
48 words
A structure as defined in claim 1 wherein both the first jaw and second jaw each include a pair of spaced, substantially parallel plates, with the second jaw including third pin means for facilitating attachment of the second jaw to the fluid motor associated with the dipper stick.
Claim 4
Dependent Claim
201 words
In combination with a backhoe including a mast and a dipper stick having a free end and movably pivotally mounted on the mast, and a fluid motor pivotally mounted on the dipper stick and extending toward the free end of the dipper stick, a jaw attachment, comprising, in combination: (a) a first jaw affixed to the dipper stick at the free end thereof; and (b) a second jaw pivotally mounted on the dipper stick at the free end thereof for movement toward and away from the first jaw, the first jaw including first pin means for mounting the first jaw on the dipper stick of the backhoe and provided with a plurality of pairs of holes arranged for receiving the first pin means, only one of the pairs of holes receiving the first pin means at a time, the plurality of pairs of holes permitting adjustment of the angle of the first jaw relative to the dipper stick, the first jaw further including second pin means for affixing the first jaw on the dipper stick in cooperation with the first pin means, and for pivotally mounting the second jaw on the dipper stick for swinging movement relative to the first jaw.
Claim 5
Dependent Claim
201 words
In combination with a backhoe including a mast and a dipper stick having a free end and movably pivotally mounted on the mast, and a fluid motor pivotally mounted on the dipper stick and extending toward the free end of the dipper stick, a jaw attachment, comprising, in combination: (a) a first jaw affixed to the dipper stick at the free end thereof; and (b) a second jaw pivotally mounted on the dipper stick at the free end thereof for movement toward and away from the first jaw, the first jaw including first pin means for mounting the first jaw on the dipper stick of the backhoe and provided with a plurality of pairs of holes arranged for receiving the first pin means, only one of the pairs of holes receiving the first pin means at a time, the plurality of pairs of holes permitting adjustment of the angle of the first jaw relative to the dipper stick, the first jaw further including second pin means for affixing the first jaw on the dipper stick in cooperation with the first pin means, and for pivotally mounting the second jaw on the dipper stick for swinging movement relative to the first jaw.
Claim 6
Dependent Claim
48 words
A structure as defined in claim 3, wherein both the first jaw and second jaw each include a pair of spaced, substantially parallel plates, with the second jaw including third pin means for facilitating attachment of the second jaw to the fluid motor associated with the dipper stick.
References Cited (Backward Citations)
SE307832B
Cited
FR1522225A
Cited
US3300242A
Cited
US3455477A
Cited
US3737059A
Cited
US3802731A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1981-12-25 | 1982-06-26 | 1982-12-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1985-12-25 | 1986-06-26 | 1986-12-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1989-12-25 | 1990-06-26 | 1990-12-26 | $7700.00 | Window Closed / Lapsed |