US3567049A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Mechanical excavator or loader vehicle
Assignee: POCTAIN SA
•
Filing: 1969-04-03
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Granted: 1971-03-02
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Expires: 1989-04-03
Abstract
Abstract In a mechanical excavator or loader vehicle having a rotary turret carrying a counterweight, jib, and scoop or bucket the invention consists in supporting said turret on the vehicle chassis by parallel linkage means whereby said turret and the parts carried thereby can be moved bodily in a direction longitudinally of the jib to vary the position of the center gravity of the vehicle.
Inventors
- 👤 Gabriel L Guinot
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 19:14
CPC Classifications
E; E02; E02F; E02F9/00; E02F9/08; E02F9/10; E02F9/12; E02F3/00; E02F3/04; E02F3/28; E02F3/30; E02F3/302; E02F3/32; E02F9/18
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
77 words
A mechanical earthworking machine, such as a mechanical excavator or loader, comprising a chassis, a turret rotatably mounted on said chassis, a jib articulated to said turret and carrying an earthworking implement such as a bucket or scoop, and a counterweight mounted on said turret, wherein said turret is supported on said chassis by parallel linkage means whereby said turret and the parts carried thereby can be displaced bodily in a direction substantially longitudinally of the jib.
Claim 2
Dependent Claim
77 words
A mechanical earthworking machine, such as a mechanical excavator or loader, comprising a chassis, a turret rotatably mounted on said chassis, a jib articulated to said turret and carrying an earthworking implement such as a bucket or scoop, and a counterweight mounted on said turret, wherein said turret is supported on said chassis by parallel linkage means whereby said turret and the parts carried thereby can be displaced bodily in a direction substantially longitudinally of the jib.
Claim 3
Dependent Claim
62 words
A mechanical earthworking vehicle according to claim 1, wherein said parallel linkage means comprises a pair of parallel arms each pivotally connected at one of its ends to the turret and each connected at its other end to a turret support rotatably mounted on the machine chassis, and wherein a ram is connected between one of said arms and said turret support.
Claim 4
Dependent Claim
37 words
A mechanical earthworking vehicle according to claim 2, wherein one of said arms of the parallel linkage means is in the form of a relatively wide platelike member and said ram is connected with said platelike member.
References Cited (Backward Citations)
US2408500A
Cited
US3435961A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-03-01 | 1974-08-31 | 1975-03-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-03-01 | 1978-08-31 | 1979-03-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-03-01 | 1982-08-31 | 1983-03-02 | $7700.00 | Window Closed / Lapsed |