Patent US3844370A successfully refreshed from Google Patents.
US3844370A
Expired / Lapsed
US
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Loading machine
Assignee: Sullivan Machinery Co
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Filing: 1972-10-11
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Granted: 1974-10-29
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Expires: 1992-10-11
Abstract
Abstract A loading machine having an operating bucket for loading, lifting, tramming and dumping earthy materials such as ores in mining or stripping operations wherein the machine has an articulated lifting and loading boom and operational linkage therefor with connecting spaces for linkage cylinders to provide obstruction free bucket operation, and a novel axle trunnion support for smooth torque transmittal on the oscillating rear axle of the machine.
Inventors
- 👤 J Belkovicz
- 👤 E Mullen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 04:35
CPC Classifications
E; E02; E02F; E02F3/00; E02F3/04; E02F3/28; E02F3/283; B; B62; B62D; B62D49/00; B62D49/02
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
120 words
A loading machine comprising: a front frame portion; an elongated rear frame portion pivotally connected to said front frame portion for pivoting about a vertical axis; power means mounted on said rear frame portion; a differential wheel and axle assembly; a support frame mounted on said axle assembly; forward and rearward pivot means pivotally connecting said frame with said rear frame portion; said pivot means coaxially aligned on an axis extending longitudinally of said rear frame portion; power transmitting shaft means drivingly communicating between said power means and said axle assembly; and at least the portion of said shaft means in driving engagement with said axle assembly being coaxial about said axis throughout the normal operation of said loading machine.
Claim 2
Dependent Claim
120 words
A loading machine comprising: a front frame portion; an elongated rear frame portion pivotally connected to said front frame portion for pivoting about a vertical axis; power means mounted on said rear frame portion; a differential wheel and axle assembly; a support frame mounted on said axle assembly; forward and rearward pivot means pivotally connecting said frame with said rear frame portion; said pivot means coaxially aligned on an axis extending longitudinally of said rear frame portion; power transmitting shaft means drivingly communicating between said power means and said axle assembly; and at least the portion of said shaft means in driving engagement with said axle assembly being coaxial about said axis throughout the normal operation of said loading machine.
Claim 3
Dependent Claim
27 words
A loading machine as specified in claim 1 wherein one of said pivot means is a hollow member and said shaft means extends through said hollow member.
Claim 4
Dependent Claim
28 words
A loading machine as specified in claim 2 wherein said shaft means comprises two spaced universal joints and one of said joints is located within said hollow member.
Claim 5
Dependent Claim
28 words
A loading machine as specified in claim 1 wherein said differential wheel and axle assembly comprises a differential portion located between said forward pivot and said rearward pivot.
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) | 1977-10-28 | 1978-04-29 | 1978-10-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-10-28 | 1982-04-29 | 1982-10-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-10-28 | 1986-04-29 | 1986-10-29 | $7700.00 | Window Closed / Lapsed |