Harvesters – Tedders – Mower attachment
Reexamination Certificate
2006-06-27
2006-06-27
Kovács, Árpád Fábián (Department: 3671)
Harvesters
Tedders
Mower attachment
C172S029000, C056S378000
Reexamination Certificate
active
07065947
ABSTRACT:
A sand grooming vehicle comprises a vehicle having zero radius turn capability. The vehicle includes a front caster wheel, two independently driven rear wheels, and twin control sticks for allowing spin turning of the vehicle by driving the outboard drive wheel and stopping or reversing the inboard wheel. A trailing brush rake is towed behind the vehicle to groom the sand. The brush rake includes a center brush and two pivotal side brushes connected to opposite ends of the center brush. The pivots connecting the side brushes and the center brush are elevated above the plane of engagement of the bristles of the side brushes and the sand. Thus, during a spin turn of the vehicle, the side brush on the inside of the turn lifts to avoid pushing a ridge of sand behind that side brush. This permits the vehicle and the brush rake to groom the sand surface without leaving any ungroomed teardrops at the inside of turns and without leaving ridges of sand on the sand surface.
REFERENCES:
patent: 1421060 (1922-06-01), Brook
patent: 1566194 (1925-12-01), Freeman
patent: 1674306 (1928-06-01), Shaw
patent: 2300192 (1942-10-01), Allen
patent: 3086236 (1963-04-01), Anonsen
patent: 3115738 (1963-12-01), Engler
patent: 3400521 (1968-09-01), Caldwell
patent: 3525201 (1970-08-01), Kaufman
patent: 4135349 (1979-01-01), Schwertner
patent: 4148174 (1979-04-01), Mathews et al.
patent: 4370846 (1983-02-01), Arnold
patent: 4747174 (1988-05-01), Hightower
patent: 4989676 (1991-02-01), Rogers
patent: 5018587 (1991-05-01), Gandrud et al.
patent: 5133174 (1992-07-01), Parsons, Jr.
patent: 5251704 (1993-10-01), Bourgault et al.
patent: 5621940 (1997-04-01), Lewis et al.
patent: D395900 (1998-07-01), Shannon et al.
patent: 5833013 (1998-11-01), Davis
patent: 5911625 (1999-06-01), von Allworden
patent: 5918684 (1999-07-01), Tozer
patent: 6439444 (2002-08-01), Shields, II
Toro Sand Pro Brochure, date 1998.
Smithco Brochure showing Super Rake Brush, undated but admitted prior art.
Scherbring David J.
Street Benjamin A.
Kovács Árpád Fábián
Miller James W.
The Toro Company
LandOfFree
Powered ZRT sand grooming vehicle and grooming brush rake does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Powered ZRT sand grooming vehicle and grooming brush rake, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Powered ZRT sand grooming vehicle and grooming brush rake will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3679544