Excavating – Snow or ice removing or grooming by portable device – Motorized rotary excavating tool
Patent
1991-05-14
1993-01-12
Corbin, David H.
Excavating
Snow or ice removing or grooming by portable device
Motorized rotary excavating tool
38244, 406160, 406162, 193 16, 193 22, E01H 508
Patent
active
051778882
ABSTRACT:
A discharge chute assembly (30) includes a chute (32) and a pivotal deflector (34), the overlapping end portions of which define a partial spherical or ball joint (40) which maintains a tight seal against backflow and leakage over the entire range of rotation and deflection of the assembly. The assembly (30) is preferably secured to a rotatable base (54) by means of lower pivots (70) and a releasable fastener (72) for collapsibility.
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Bricko Thomas K.
Hacker John R.
Larsen David E.
Thorud Richard A.
Toensing Dean R.
Bunch John W.
Corbin David H.
Olsen Arlen L.
The Toro Company
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