Excavating – Snow or ice removing or grooming by portable device – Motorized rotary excavating tool
Patent
1982-08-31
1983-09-06
Eickholt, E. H.
Excavating
Snow or ice removing or grooming by portable device
Motorized rotary excavating tool
74 97, 192 99R, E01H 509, F16D 1900
Patent
active
044021496
ABSTRACT:
A snow plow including an automotive car body equipped with an engine, a transmission and a clutch means; an operation-frame attached to the rear upper portion of said car body; a clutch operation means attached to said operation frame, said clutch operation means being designed to operate for disengaging said clutch means; and a snow plow apparatus mounted on the car body, wherein said operation frame is provided with an upper guard frame having a substantially same width as the car body with freedom of oscillation; the car body is provided, under said upper guard frame, with a lower guard frame having a substantially same width as the car body with freedom of oscillation; said both guard frames are connected by means of a first connecting means; and any one of both guard frames is connected with the clutch operation means by means of a second connecting means so that when an impact is applied on either guard frame the clutch operation means is designed to operate for disengaging the clutch means.
REFERENCES:
patent: 4026392 (1977-05-01), Hirschkoff
patent: 4062135 (1977-12-01), Rudolph
patent: 4204591 (1980-05-01), Tawi et al.
patent: 4255879 (1981-03-01), Greider
patent: 4324324 (1982-04-01), Priepke et al.
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