Electromagnetic cruise control for a lawn and garden tractor

Details Electromagnetic cruise control for a lawn and garden tractor Electromagnetic cruise control for a lawn and garden tractor

1991-10-29

1992-12-08

Lorence, Richard

192 clutches and power-stop control

Vortex-flow drive and clutch

With brake

74474, 74475, 188 67, 188161, B60K 4126, B60K 3102

Patent

active

051689707

ABSTRACT:
A relatively simple electromechanical cruise control for a vehicle includes a hydrostatic drive linkage having a flat portion connecting two links and extending adjacent an electromagnet fixed to the frame of the vehicle. Actuation of the control under preselected operating conditions activates the electromagnet to hold the flat portion stationary and thereby maintain a given hydrostatic control position. Interlock circuitry deactivates the magnet if the operator touches the brake, leaves his seat or turns off either the cruise switch or ignition switch.

REFERENCES:
patent: 3618718 (1971-11-01), Blaauw et al.
patent: 3645368 (1972-02-01), Blaauw
patent: 4023636 (1977-05-01), Levin
patent: 4496035 (1985-01-01), Wanie
patent: 4608879 (1986-09-01), Ishida et al.
patent: 4620575 (1986-11-01), Cuba et al.
Bolens "DuraTrac Tractor" Safety and Operations Instructions (9/89).

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