Powered sand grooming vehicle with yieldable front bulldozer...

Details Powered sand grooming vehicle with yieldable front bulldozer... Powered sand grooming vehicle with yieldable front bulldozer...

2004-01-27

2009-11-17

Will, Thomas B (Department: 3671)

Earth working

Mounting for pushed tool at end of motor vehicle

Transversely mounted blade

C172S833000, C033S266000

Reexamination Certificate

active

07617882

ABSTRACT:
A vehicle for grooming sand or the like includes a quick attachment for connecting a front bulldozer blade or other implement to a steerable front wheel of the vehicle. When the front wheel pivots while steering, the front blade pivots with the front wheel to minimize catching the front blade on the lip or edge of a golf course bunker. The front blade is pivotal relative to the quick attachment against the bias of springs to minimize the tendency of the blade to dig into the sand. The pivotal motion of the front blade can be locked out if desired. The quick attachment is connected by a four bar linkage to the vehicle.

REFERENCES:
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patent: 3422553 (1969-01-01), Holloway
patent: 3484964 (1969-12-01), Jeffrey, Jr.
patent: 3722915 (1973-03-01), Gail
patent: 3815687 (1974-06-01), Federspiel
patent: 4597205 (1986-07-01), Guest
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patent: 5088215 (1992-02-01), Ciula
patent: 5950735 (1999-09-01), Godbersen
patent: 6145222 (2000-11-01), Curtis
patent: 6347671 (2002-02-01), Stiller et al.
Toro Sand Pro Brochure, 1998, Dozer Blade, p. 3.
Smithco Brochure showing Manual and Hydraulic Front Blades, undated but admitted prior art.

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