Excavating – Snow or ice removing or grooming by portable device – With specific means to facilitate connection to – or...
Patent
1986-09-03
1988-05-17
Crowder, Clifford D.
Excavating
Snow or ice removing or grooming by portable device
With specific means to facilitate connection to, or...
37236, 37281, E01H 506
Patent
active
047441593
ABSTRACT:
The mechanism comprises in combination an upstanding frame mounted to the front of the chassis of a land vehicle and adapted to mount a front plow assembly, and a side frame mounted to the side chassis of the land vehicle for mounting a side wing plow. Both the front and side frames include a sub-frame pivotally mounted to the lower portion of the upstanding frame, hydraulic means for moving the sub-frame in an arc between a retracted and an extended position. The sub-frame has a free end mounting an engagement member remote from the pivot axis and adapted to engage a sub-frame on a plow assembly frame. The sub-frame on the plow assembly includes a hook member open downwardly and adapted to receive the engagement member of the free end of the first sub-frame and locking means associated with the first and second sub-frames for locking the first and second sub-frames together when the engagement member is engaged within the hook member and the pivoted sub-frame is in a retracted position.
REFERENCES:
patent: 2643470 (1953-06-01), Kaeser
patent: 3845577 (1974-11-01), Naymik
patent: 4236329 (1980-12-01), Hetrick
patent: 4357766 (1982-11-01), Croteau et al.
Crowder Clifford D.
Meerkreebs Samuel
Tenco Machinery Ltd.
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