Excavating – Snow or ice removing or grooming by portable device – Vehicle mount with obstacle responsive trip – or yieldable tool
Patent
1994-11-14
1997-02-18
Melius, Terry Lee
Excavating
Snow or ice removing or grooming by portable device
Vehicle mount with obstacle responsive trip, or yieldable tool
37234, 37266, 172794, 172819, E01H 504
Patent
active
056031726
ABSTRACT:
A plow blade comprising a forward facing longitudinally curved major portion and a minor blade resiliently and pivotally mounted on the major portion and being disposed between the major portion and the surface to which the plow is applied. Also included in the preferred embodiment is a `reversing` cylinder which is selectably operable to apply a force to urge the minor blade into a selectably rearward angle without inhibiting the resilient movement of the lower portion to respond to surface obstacles by deflecting into a further rearward position. Also provided of the present invention are selectable intermediate minor blade positions, such as perpendicular to the surface, to facilitate removal of residual surface material, e.g. packed snow and ice. Alternate embodiments include a retrofit kit applicable to existing plows to provide the features of the present invention.
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Batson Victor
Matzuk Stephen G.
Melius Terry Lee
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