US3155251A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Lift truck
Assignee: Doosan Bobcat North America Inc
•
Filing: 1962-04-02
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Granted: 1964-11-03
•
Expires: 1982-04-02
Abstract
No abstract record available.
Inventors
- 👤 William A Williamson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 17:07
CPC Classifications
B; B66; B66F; B66F9/00; B66F9/06; B66F9/065
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
170 words
AN INDUSTRIAL TRUCK HAVING A PAIR OF LATERALLY SPACED, LONGITUDINALLY EXTENDING FRAME MEMBERS AND AN OPERATOR''S STATION LOCATED TRANSVERSELY OUTWARDLY OF ONE OF SAID FRAME MEMBERS, COMPRISING A LONGITUDINALLY EXTENDING LOADER MECHANISM SUPPORTED FROM AND INTERMEDIATE SAID FRAME MEMBERS, INCLUDING UPRIGHT STRUCTURE MOUNTED INTERMEDIATE THE ENDS OF THE TRUCK, LOAD ENGAGING MEANS SUPPORTED FORWARDLY OF SAID UPRIGHT STRUCTURE AND LONGITUDINALLY EXTENDING LIFT AND TILT MOTOR MEANS CONNECTING SAID LOAD ENGAGING MEANS TO SAID UPRIGHT STRUCTURE, SAID TILT MOTOR MEANS INCLUDING PARALLELOGRAM CONNECTING MEANS EXTENDING BETWEEN SAID LOAD ENGAGING MEANS AND SAID UPRIGHT STRUCTURE, AND A DRIVE AXLE CONNECTED TO DRIVE WHEELS WHICH ARE LOCATED AT THE FORWARD ENDS OF SAID FRAME MEMBERS, SAID DRIVE AXLE BEING OFFSET REARWARDLY OF SAID DRIVE WHEELS AND SAID FRAME MEMBERS HAVING A REARWARDLY EXTENDING OPENING THEREBETWEEN AT THE FRONT END OF THE TRUCK, WHEREBY ACTUATION OF THE LIFT MOTOR MEANS TO LOWER SAID LOAD ENGAGING MEANS ACTUATES A PORTION OF THE LOADER MECHANISM DOWNWARDLY THROUGH SAID REARWARDLY EXTENDING OPENING AND OVER SAID DRIVE AXLE.
Claim 2
Dependent Claim
170 words
AN INDUSTRIAL TRUCK HAVING A PAIR OF LATERALLY SPACED, LONGITUDINALLY EXTENDING FRAME MEMBERS AND AN OPERATOR''S STATION LOCATED TRANSVERSELY OUTWARDLY OF ONE OF SAID FRAME MEMBERS, COMPRISING A LONGITUDINALLY EXTENDING LOADER MECHANISM SUPPORTED FROM AND INTERMEDIATE SAID FRAME MEMBERS, INCLUDING UPRIGHT STRUCTURE MOUNTED INTERMEDIATE THE ENDS OF THE TRUCK, LOAD ENGAGING MEANS SUPPORTED FORWARDLY OF SAID UPRIGHT STRUCTURE AND LONGITUDINALLY EXTENDING LIFT AND TILT MOTOR MEANS CONNECTING SAID LOAD ENGAGING MEANS TO SAID UPRIGHT STRUCTURE, SAID TILT MOTOR MEANS INCLUDING PARALLELOGRAM CONNECTING MEANS EXTENDING BETWEEN SAID LOAD ENGAGING MEANS AND SAID UPRIGHT STRUCTURE, AND A DRIVE AXLE CONNECTED TO DRIVE WHEELS WHICH ARE LOCATED AT THE FORWARD ENDS OF SAID FRAME MEMBERS, SAID DRIVE AXLE BEING OFFSET REARWARDLY OF SAID DRIVE WHEELS AND SAID FRAME MEMBERS HAVING A REARWARDLY EXTENDING OPENING THEREBETWEEN AT THE FRONT END OF THE TRUCK, WHEREBY ACTUATION OF THE LIFT MOTOR MEANS TO LOWER SAID LOAD ENGAGING MEANS ACTUATES A PORTION OF THE LOADER MECHANISM DOWNWARDLY THROUGH SAID REARWARDLY EXTENDING OPENING AND OVER SAID DRIVE AXLE.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-11-03 | 1968-05-04 | 1968-11-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-11-03 | 1972-05-04 | 1972-11-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-11-03 | 1976-05-04 | 1976-11-03 | $7700.00 | Window Closed / Lapsed |