Patent US3712384A successfully refreshed from Google Patents.
US3712384A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Adjustable pinion for motor grader circle drive
Assignee: Caterpillar Inc
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Filing: 1970-10-05
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Granted: 1973-01-23
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Expires: 1990-10-05
Abstract
Abstract A drive pinion unit for a blade support circle which is readily adjustable relative to the blade circle gear to regulate the mating tolerance and minimize wear-caused backlash between the pinion and the circle gear.
Inventors
- 👤 W Fisher
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 16:01
CPC Classifications
E; E02; E02F; E02F3/00; E02F3/04; E02F3/76; E02F3/7636; E02F3/764
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
167 words
In a motor grader having a wheel mounted frame means with drawbar means attached thereto and an earth-working bladecarrying support circle means rotatably mounted upon said drawbar means, the improveMent comprising; drive means for said support circle means, said drive means including a pinion gear, said support circle means including gear means which engage said pinion gear, adjustment means for adjustably mounting said drive means upon said drawbar means to permit selective movement of said drive means with respect to said drawbar means and said support circle means, said pinion gear being adjustably mounted upon said drawbar means by said adjustment means, said adjustment means including bolts and shims to permit adjustments between said drive means and said support circle means to be readily accomplished by movement of said drive means, and said drive means being interconnected to and controlled by said adjustment means which adjustment means further include frame mounted operator-actuated control linkage means having a telescopic spline connection which accomodates movement of said drive means.
Claim 2
Dependent Claim
167 words
In a motor grader having a wheel mounted frame means with drawbar means attached thereto and an earth-working bladecarrying support circle means rotatably mounted upon said drawbar means, the improveMent comprising; drive means for said support circle means, said drive means including a pinion gear, said support circle means including gear means which engage said pinion gear, adjustment means for adjustably mounting said drive means upon said drawbar means to permit selective movement of said drive means with respect to said drawbar means and said support circle means, said pinion gear being adjustably mounted upon said drawbar means by said adjustment means, said adjustment means including bolts and shims to permit adjustments between said drive means and said support circle means to be readily accomplished by movement of said drive means, and said drive means being interconnected to and controlled by said adjustment means which adjustment means further include frame mounted operator-actuated control linkage means having a telescopic spline connection which accomodates movement of said drive means.
Claim 3
Dependent Claim
28 words
The motor grader of claim 1 wherein said relative movement between said drive means and said support circle means is accomplished without movement of said support circle means.
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) | 1976-01-23 | 1976-07-24 | 1977-01-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-01-23 | 1980-07-24 | 1981-01-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-01-23 | 1984-07-24 | 1985-01-23 | $7700.00 | Window Closed / Lapsed |