Exmark Manufacturing Company, Inc.

Exmark Mfg. Co., Inc.

Timothy D Andre

Christian S C Bryant

Patrick D Sands

Jeremy John Tate

C Mark Atterbury

Jeffrey J Moore

Derek L Dragoo

Alex W Buhr

Systems and methods for inhibiting implement-induced stall of a prime mover associated with a turf vehicle. In some embodiments, the vehicle includes an electronic controller (EC) adapted to monitor a speed of the prime mover and detect when the speed falls below a speed threshold. The EC is adapted to automatically disengage a power take-off (PTO) connecting the prime mover to the implement when the speed of the prime mover falls below this speed threshold.

Systems and methods for inhibiting implement-induced engine stall, and turf maintenance vehicles incorporating same

Systems and methods for determining an idle, recommended cool-down period (RCDP) for a prime mover of a grounds maintenance vehicle. Delaying engine shutdown until after expiration of the RCDP allows engine components to adequately cool. In some embodiments, systems and methods may provide a quantitative indication of the time remaining in the RCDP, while other embodiments may notify an operator that a re-start of the engine is necessary to continue cool-down.

Systems and methods for determining an engine cool-down period and grounds maintenance vehicles incorporating same

A rotary mower cutting deck has a downwardly opening space and rear discharge opening. A center blade and a first side blade rotating in one direction and a second counter-rotating side blade are within the space. A front flow control baffle has a first V-shaped apex located between the unidirectional blades and a second V-shaped apex between the center blade and the counter-rotating side blade. A first V-shaped flow deflector mounted to the first apex points downwardly to cause many grass clippings from the first side blade to be directed to the rear discharge opening without passing to the center blade. A second V-shaped flow deflector mounted to the second apex points upwardly to disrupt the convergence of the air flows and clipping streams from the center and second side blades to maintain the quality of cut and reduce blow out.

Rear discharge mower deck

A support platform isolator system for a turf maintenance vehicle. The isolator system may include one or more rear isolators, and one or more forward isolators, the isolators positioned between a chassis of the vehicle and a support platform. The isolator system may not only reduce 'metal-on-metal' noise between the chassis and the platform, but may also attenuate vibration and/or shock loads transmitted to the platform. In addition, the system may assist in locating the platform on, and retaining the platform to, the chassis. The isolators of the system may form primary contact areas between the chassis and the platform.

Turf maintenance vehicle and support platform isolator system for same

A rotary mower cutting deck has a rear discharge opening across a rear end thereof and a center blade and a first side blade rotating in one direction and a second side blade counter-rotating in the opposite direction. A front flow control baffle has a first, rearwardly facing V-shaped apex located between the unidirectional blades and a second, rearwardly facing V-shaped apex between the center blade and the counter-rotating side blade. A first V-shaped flow deflector is mounted to the first apex with the first flow deflector pointing downwardly to cause many grass clippings from the first side blade to be directed to the rear discharge opening without passing to the center blade. A second V-shaped flow deflector is mounted to the second apex with the second flow deflector pointing upwardly to disrupt the convergence of the air flows from the center and second side blades.

Rear discharge mower deck with flow control baffles

A walk aerator comprises a housing supported by a plurality of wheels that include a pair of drive wheels. The drive wheels are pivotally mounted to the housing to permit the housing to move between operational and transport positions thereof. A control is used to so move the housing with the control having a hand grip whose height above the ground is easily adjustable to accommodate users of different effective heights. A foot guard maintains a relatively constant disposition relative to the ground whether the housing is in its operational or transport position. The housing of the aerator has a vent system and an air gap relative to a prime mover deck which cool a traction drive system contained within the housing.

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Firth, NE, United States of America

Timothy D Andre