Harvesters – Motorized harvester – Including motorized vehicle causing transit of harvester
Reexamination Certificate
2005-03-08
2005-03-08
Pezzuto, Robert E (Department: 3671)
Harvesters
Motorized harvester
Including motorized vehicle causing transit of harvester
C056S016700
Reexamination Certificate
active
06862872
ABSTRACT:
A zero-turning-radius power lawn mower for operation by a standing-occupant includes first and second independently driven and controlled rear drive wheels mounted on separate drive axles. A riding platform for supporting the standing-occupant or operator is located between the first and second rear drive wheels. The rear drive wheels are independently driveable in both the forward and reverse directions at variable speeds so as to allow for substantially zero-radius-turning of the mower about a central turning point. The riding platform is positioned at this turning point so that the standing-occupant remains substantially unaffected by centrifugal force created during approximate zero-radius-turning of the mower thereby allowing the mower to take such turns at higher speeds. Such positioning of the platform also provides for improved maneuverability, reduces the likelihood that the platform will bottom out when the mower goes over bumps, and creates a safer mower less susceptible to tipping due to the resulting low center of gravity. The low center of gravity created by the position of the riding platform for the standing-operator also results in the mower having improved traction and being less likely to pop “wheelies” upon acceleration.
REFERENCES:
patent: 34057 (1862-08-01), Middlesworth
patent: 1764971 (1930-06-01), Nilson
patent: 2354576 (1944-07-01), Clark
patent: 2583358 (1952-01-01), Cesan
patent: 3190672 (1965-06-01), Swanson
patent: 3336042 (1967-08-01), Southall
patent: 3455404 (1969-07-01), Hansen
patent: 3483682 (1969-12-01), Root
patent: 3485314 (1969-12-01), Herr
patent: 4175762 (1979-11-01), Vaughn et al.
patent: 4316356 (1982-02-01), Planeta
patent: 4395865 (1983-08-01), Davis, Jr. et al.
patent: 4429515 (1984-02-01), Davis, Jr. et al.
patent: 4487006 (1984-12-01), Scag
patent: 4558558 (1985-12-01), Horner, Jr. et al.
patent: 4709541 (1987-12-01), Broman et al.
patent: 4715168 (1987-12-01), Oxley
patent: 4787646 (1988-11-01), Kamlukin et al.
patent: 4828282 (1989-05-01), Pinto
patent: 4874055 (1989-10-01), Beer
patent: 4878339 (1989-11-01), Marier et al.
patent: 4885903 (1989-12-01), Scag
patent: 4920733 (1990-05-01), Berrios
patent: 4967543 (1990-11-01), Scag et al.
patent: 4991382 (1991-02-01), Scag
patent: 4998948 (1991-03-01), Osterling
patent: 5004251 (1991-04-01), Velke et al.
patent: 5042238 (1991-08-01), White, III et al.
patent: 5077959 (1992-01-01), Wenzel
patent: 5118123 (1992-06-01), Betrock
patent: 5119619 (1992-06-01), Zappia
patent: 5131483 (1992-07-01), Parkes
patent: 5307612 (1994-05-01), Tomiyama et al.
patent: 5388850 (1995-02-01), Simone
patent: 5413364 (1995-05-01), Hafendorfer
patent: 5463853 (1995-11-01), Santoli et al.
patent: 5507138 (1996-04-01), Wright et al.
patent: 5600944 (1997-02-01), Wright et al.
patent: 5653466 (1997-08-01), Berrios
patent: 5765347 (1998-06-01), Wright et al.
patent: 5809756 (1998-09-01), Scag et al.
patent: 5964082 (1999-10-01), Wright et al.
patent: 6085504 (2000-07-01), Wright et al.
Excel Compacts 251K/251K T/S/260K T/S (1990).
Excel Hustler 261 (1983).
Excel Hustler 65 and HUstler 36 (1965).
Mar. 16, 1999 deposition of Joseph E. Berrios, including pp. 1-60 and Exs. 1, 2, and 4 thereof. .
Velke James
Wright William R.
Nixon & Vanderhye P.C.
Pezzuto Robert E
Wright Manufacturing Inc.
LandOfFree
Power mower with riding platform for supporting... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Power mower with riding platform for supporting..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Power mower with riding platform for supporting... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3371218