Patent FR730789A successfully refreshed from Google Patents.
US4226293A
Expired / Lapsed
US
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Track-laying vehicle with improved suspension
Assignee: MILLER W CORP
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Filing: 1979-03-16
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Granted: 1980-10-07
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Expires: 1999-03-16
Abstract
Abstract A track-laying vehicle in which the track units, mounted for relative vertical oscillation, are cross-connected by equalizer means including parallel linkage and further include bogie type rolling elements mounted on walking beams.
Inventors
- 👤 Ron D. Bieker
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 17:16
CPC Classifications
B; B62; B62D; B62D55/00; B62D55/08; B62D55/10; B62D55/18; B62D55/24; B62M; B62M27/00; B62M27/02; B62M2027/026
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
99 words
A track-laying vehicle having a longitudinal main body carried by and between a pair of fore-and-aft track units pivoted at their rear ends to the body on a common transverse pivot axis for vertical oscillation relative to each other and to the body and cross-connected at their front ends to the body by transverse equalizer means, characterized in that the equalizer means comprises parallel linkage means pivoted at opposite ends respectively to the track units on vertically spaced apart pivot axes and pivoted intermediate its ends to the body at its longitudinal centerline on vertically spaced apart pivot axes.
Claim 2
Dependent Claim
99 words
A track-laying vehicle having a longitudinal main body carried by and between a pair of fore-and-aft track units pivoted at their rear ends to the body on a common transverse pivot axis for vertical oscillation relative to each other and to the body and cross-connected at their front ends to the body by transverse equalizer means, characterized in that the equalizer means comprises parallel linkage means pivoted at opposite ends respectively to the track units on vertically spaced apart pivot axes and pivoted intermediate its ends to the body at its longitudinal centerline on vertically spaced apart pivot axes.
Claim 3
Dependent Claim
23 words
The vehicle of claim 1, further characterized in that the pivoting of the parallel linkage means to the track units includes ball joints.
Claim 4
Dependent Claim
31 words
The vehicle of claim 1, further characterized in that the parallel linkage means includes a pair of transverse parallel beams pivoted to the body and to the track units as aforesaid.
Claim 5
Dependent Claim
56 words
The vehicle of claim 3, further characterized in that the beams lie one behind the other in substantial side-by-side relationship, one beam being pivoted to the body and to the track units on relatively low fore-and-aft axes and the other beam being pivoted to the body and to the track units on relatively higher pivot axes.
Claim 6
Dependent Claim
67 words
The vehicle of claim 1, further characterized in that each track unit includes a fore-and-aft carriage frame pivoted at its rear end to the body as aforesaid, a walking beam pivoted intermediate its ends to the carriage frame on a transverse axis, a pair of rolling elements journalled on transverse axes to opposite ends of the walking beam, and an endless track trained about the rolling elements.
Claim 7
Dependent Claim
67 words
The vehicle of claim 5, further characterized in that each track unit includes a second walking beam pivoted intermediate its ends to the carriage on a transverse axis spaced longitudinally from the first walking beam pivot and a second pair of rolling elements journaled on transverse axes to opposite ends of the second walking beam, said track being trained also about the second pair of rolling elements.
Claim 8
Dependent Claim
46 words
The vehicle of claim 6, further characterized in that the parallel linkage means includes at opposite ends thereof rotatable guide rollers engageable with the innersides of the upper and lower runs of the respective endless tracks during oscillation of the track units beyond a predetermined amount.
Claim 9
Dependent Claim
48 words
The vehicle of claim 1, further characterized in that the parallel linkage means includes at opposite ends thereof guide rollers engageable with the innersides of the upper and lower runs of the tracks of the respective track units during oscillation of the track units beyond a predetermined amount.
Claim 10
Dependent Claim
67 words
The vehicle of claim 1, further characterized in that the beams lie one behind the other in substantial side-by-side relationship, upper and lower fore-and-aft pivots on the body on its longitudinal centerline, means journalling one beam on the lower pivot, and means journalling the other beam on the upper pivot and including a upright member rigid with said other beam and extending up to said upper pivot.
Claim 11
Dependent Claim
47 words
The vehicle of claim 9, further characterized in that the forward one of said beams includes at opposite ends thereof guide rollers for engagement with the innersides of the upper and lower runs of the respective track units during oscillation of said units beyond a predetermined amount.
References Cited (Backward Citations)
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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) | 1983-10-07 | 1984-04-07 | 1984-10-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1987-10-07 | 1988-04-07 | 1988-10-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1991-10-07 | 1992-04-07 | 1992-10-07 | $7700.00 | Window Closed / Lapsed |