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US3753508A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Skid wheel tractor utility boom
Assignee: Individual
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Filing: 1971-06-24
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Granted: 1973-08-21
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Expires: 1991-06-24
Abstract
Abstract A lightweight, hydraulically actuated boom adapted for rapid attachment to, and detachment from, a material-handling power boom. It comprises a base plate adapted to fit and to be latched to a cooperative mounting means on the free end of the power boom. A first arm is fastened to the base plate and carries a hudraulic cylinder. A second arm is hingedly supported from the free end of the first arm, the piston of the hydraulic cylinder being fastened to the second arm.
Inventors
- 👤 O Carpenter
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 16:43
CPC Classifications
B; B66; B66C; B66C13/00; B66C13/18; B66C2700/00; B66C2700/06; B66C2700/062
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
208 words
In a material-handling vehicle having a power boom mounted at its inner end onto the bed of said vehicle, the improvement, comprising a lightweight extension boom for rapid attachment to said power boom, comprising: a. mounting means including a toe plate on the outer end of said power boom; b. base plate means including an acute-angled flange at the forward edge adapted to engage and lock to said toe plate of said mounting means, an obtuse-angled flange at the rear edge of said base plate, said mounting means adapted to seat at its rear end against said obtuse-angled flange, and including spring operated plunger means on said mounting means and corresponding opening means in said obtuse-angled flange for receiving said plunger means; c. first arm means attached at its inner end to said base plate means and extending generally in a direction outwardly of said power boom; d. second arm means hingedly supported at its inner end to the outer end of said first arm means, and including load attachment means at the outer end of said second arm; and e. hydraulic cylinder means attached between said first and second arm Means, whereby said second arm can be rotated in a vertical plane relative to said first arm.
Claim 2
Dependent Claim
208 words
In a material-handling vehicle having a power boom mounted at its inner end onto the bed of said vehicle, the improvement, comprising a lightweight extension boom for rapid attachment to said power boom, comprising: a. mounting means including a toe plate on the outer end of said power boom; b. base plate means including an acute-angled flange at the forward edge adapted to engage and lock to said toe plate of said mounting means, an obtuse-angled flange at the rear edge of said base plate, said mounting means adapted to seat at its rear end against said obtuse-angled flange, and including spring operated plunger means on said mounting means and corresponding opening means in said obtuse-angled flange for receiving said plunger means; c. first arm means attached at its inner end to said base plate means and extending generally in a direction outwardly of said power boom; d. second arm means hingedly supported at its inner end to the outer end of said first arm means, and including load attachment means at the outer end of said second arm; and e. hydraulic cylinder means attached between said first and second arm Means, whereby said second arm can be rotated in a vertical plane relative to said first arm.
Claim 3
Dependent Claim
38 words
The extension boom as in claim 1 in which said first arm means comprises a pair of spaced tubular beams attached at their inner end to said base plate and carrying a journaled shaft at their outer ends.
Claim 4
Dependent Claim
32 words
The extension boom as in claim 2 in which said second arm comprises a tubular beam attached at its inner end to said shaft, and including hook means at its outer end.
Claim 5
Dependent Claim
35 words
The extension boom as in claim 3 including hydraulic means, including a cylinder fastened at its base end to said first arm between said spaced beams, and including piston means attached to said second arm.
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) | 1976-08-20 | 1977-02-19 | 1977-08-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-08-20 | 1981-02-19 | 1981-08-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-08-20 | 1985-02-19 | 1985-08-21 | $7700.00 | Window Closed / Lapsed |