Patent US3633778A successfully refreshed from Google Patents.
US3633778A
Expired / Lapsed
US
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Load stabilizing apparatus
Assignee: Metropolitan Stevedore Co
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Filing: 1970-07-27
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Granted: 1972-01-11
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Expires: 1990-07-27
Abstract
Abstract A load stabilizing apparatus for use on a forklift including a load-receiving fork. The stabilizer includes a pair of arms disposed over such fork and mounted to the forklift at their base by means which provides for rotation about a first horizontally extending axis and a second axis extending transversely to the horizontal axis. Actuating means is provided for controlling positioning of the arms whereby such arms may be rotated about the first axis to retract them to a vertical position so the lift truck can be maneuvered into position to project the fork under a load without interference of such arms. The arms may then be rotated about their horizontal axes to be projected horizontally on opposite sides of the load. The arms may then be rotated about their respective second axis to be clamped together on the load and hold it in position as the load is transported to its destination.
Inventors
- 👤 Allan R Ide
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 04:18
CPC Classifications
B; B66; B66F; B66F9/00; B66F9/06; B66F9/075; B66F9/12; B66F9/18
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
106 words
Load stabilizing apparatus comprising: a load platform; a pair of arms disposed at opposite sides of said load platform; mount means carrying said arms at their bases for rotation about a first axis extending substantially horizontally and a second axis extending transverse to said first axis; actuating means coupled with said mount means for pivoting said arms about their respective first axes to selectively retract said arms from a horizontally projecting position to a vertical retracted position and for pivoting said arms about said second axis to move said arms from a release position to a clamping position; and control means for controlling said actuating means.
Claim 2
Dependent Claim
106 words
Load stabilizing apparatus comprising: a load platform; a pair of arms disposed at opposite sides of said load platform; mount means carrying said arms at their bases for rotation about a first axis extending substantially horizontally and a second axis extending transverse to said first axis; actuating means coupled with said mount means for pivoting said arms about their respective first axes to selectively retract said arms from a horizontally projecting position to a vertical retracted position and for pivoting said arms about said second axis to move said arms from a release position to a clamping position; and control means for controlling said actuating means.
Claim 3
Dependent Claim
53 words
Load stabilizing apparatus as set forth in claim 1 wherein: said actuating means includes a floating hydraulic cylinder disposed intermediate said arms and a pair of connecting rods connecting opposite ends of said cylinder with said respective arms and a hydraulic pressure source connected with said hydraulic cylinder for supplying hydraulic pressure thereto.
Claim 4
Dependent Claim
171 words
Load stabilizing apparatus as set forth in claim 1 wherein: said mount means includes a pair of horizontally disposed bearings disposed adjacent the base of said arms, hollow journals carried in said bearings and formed with through passages, said arms being pivotally carried from the respective outer extremities of said journals, a coupling member offset from said journals and coupling them together; and said actuating means includes first drive means connected with said coupling member for rotating said journals in said bearings to retract said arms to their vertical positions, second drive means interposed between said bearings and a pair of connecting rods connected on their inner extremities with said second drive means, projecting through said passages in said journals, and connected on their outer extremities with said arms whereby said first drive means may be actuated to extend said arms to their horizontal position and said second drive means may be actuated to draw said connecting rods inwardly to clamp said arms on a load carried on said load platform.
Claim 5
Dependent Claim
79 words
Load stabilizing apparatus as set forth in claim 1 for use on a forklift truck and wherein: said actuating means includes first fluid drive means for rotating said arms about their respective first axes and second fluid drive means for rotating said arms about their respective second axes; and said control means includes control handle means disposed adjacent the forklift truck operator''s platform for convenient access by the operator whereby said arms may be manipulated from said operator''s platform.
Claim 6
Dependent Claim
49 words
Load stabilizing apparatus as set forth in claim 2 for use on a lift truck and wherein: said control means includes a hydraulic valve for controlling fluid flow to said cylinder and including a control handle disposed adjacent the forklift operator''s platform for convenient access from said operator''s platform.
Claim 7
Dependent Claim
49 words
Load stabilizing apparatus as set forth in claim 3 for use on a lift truck and wherein: said control means includes control handle means for controlling said first and second drive means and disposed adjacent the lift truck operator''s platform for convenient access from the lift truck operator''s platform.
References Cited (Backward Citations)
US2950830A
Cited
US2875913A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-01-10 | 1975-07-12 | 1976-01-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-01-10 | 1979-07-12 | 1980-01-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-01-10 | 1983-07-12 | 1984-01-11 | $7700.00 | Window Closed / Lapsed |