Excavator arm
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Oct 8, 1991
Grant Date -
N/A
app pub date -
Dec 18, 1989
filing date -
Dec 24, 1988
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
An excavator arm with basic boom 12, intermediate boom 14 and shovel stem 16 with digging implement is connected to a support part 86 which can be driven directly or indirectly into rotation about a vertical axis 84. In order to dig trenches with vertical walls outside the longitudinal axis of the vehicle and to achieve an advantageous transport position, the intermediate boom 14 consists of a front part 14a, a rear part 14b and a common rotary joint 20, the most advantageous transport position being achieved by rotating by 180.degree. the front part 14a, about the axis of rotation 22 set vertically, from the extended operational position relative to the rear part 14b.
First Claim
Family
International Classification(s)
Cited Art Landscape
Patent Citation Ranking
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