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US3747718A Expired / Lapsed US ⏱️ 0.0 years remaining

Public works machines

Assignee: Poclain SA
•
Filing: 1971-10-06
•
Granted: 1973-07-24
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Expires: 1991-10-06
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Abstract

Abstract This invention relates to a machine, particularly a public works machine, constituted by a first chassis provided with at least one first group of rolling members, by a turret mounted to rotate on the first chassis about a first substantially vertical axis, and by a platform provided with an operating equipment, articulated on the turret about a second axis substantially perpendicular to the first axis, and provided with a second group of rolling members capable of being oriented about a third axis which is substantially vertical, when the rolling members of this second group are in abutment on the ground, wherein it comprises in addition a second chassis, interposed between the turret and the platform, the second group of rolling members is mounted to pivot about the third axis of this second chassis, the platform is mounted to rotate on said second chassis about a fourth axis, which is substantially parallel to the third axis, and finally the second chassis itself is articulated to the turret about the second axis.

Inventors

  • 👤 Y Gauchet

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-24 17:25
CPC Classifications
B; B62; B62D; B62D37/00; E; E02; E02F; E02F9/00; E02F9/02

Claims Analysis

Total Claims: 5
Claim 1
Independent Claim 117 words
A machine of the class described comprising; a first chassis, rolling means supporting said chassis, a turret mounted on said chassis for rotation about a substantially vertical axis, a second chassis connected at one end to said turret for movement about an axis substantially perpendicular to said first axis, further rolling means connected to said second chassis at its other end and pivotable about an axis which is substantially vertical when said further rolling means are in abutment with the ground, and a platform adapted to carry operating equipment and being mounted on said second chassis for pivotal movement in respect thereto about an axis parallel to the axis about which said further rolling means are pivotable.
Claim 2
Dependent Claim 117 words
A machine of the class described comprising; a first chassis, rolling means supporting said chassis, a turret mounted on said chassis for rotation about a substantially vertical axis, a second chassis connected at one end to said turret for movement about an axis substantially perpendicular to said first axis, further rolling means connected to said second chassis at its other end and pivotable about an axis which is substantially vertical when said further rolling means are in abutment with the ground, and a platform adapted to carry operating equipment and being mounted on said second chassis for pivotal movement in respect thereto about an axis parallel to the axis about which said further rolling means are pivotable.
Claim 3
Dependent Claim 20 words
Machine as claimed in claim 1, wherein a selective integrating member is coupled between the second chassis and the turret.
Claim 4
Dependent Claim 21 words
Machine as claimed in claim 2, wherein the integrating member coupled between the second chassis and the turret is a jack.
Claim 5
Dependent Claim 35 words
Machine as claimed in claim 1, wherein, when either of said rolling means are constituted by endless belt assemblies, each is disposed on a support articulated on the corresponding chassis about a substantially horizontal axis.

References Cited (Backward Citations)

US3430985A Cited
US3318613A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1976-07-23 1977-01-22 1977-07-24 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1980-07-23 1981-01-22 1981-07-24 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1984-07-23 1985-01-22 1985-07-24 $7700.00 Window Closed / Lapsed

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