Filing Information

Inventor(s)	Robert N. Picardat ·
Assignee(s)	PICARDAT ROBERT N ·  View assignee updates
Attorney/Agent(s)	Berman, Aisenberg & Platt ·
Primary Examiner	Robert E. Bagwill ·
Application Number	US5563057
Filing date	03/28/1975
Issue date	12/07/1976
Predicted expiration date	03/28/1995
U.S. Classifications	111/12  · 111/6  ·
International Classifications	A01C 708  ·
Kind Code	A
International Classifications	18011;49;51;52 ·

Patent Family

Abstract

A lawn treating machine consisting of a wheeled front section and a wheeled rear section hinged together by a hydraulically operated vertical hinge mechanism for steering the machine. The front section includes a hydraulically driven scattering mechanism provided at the lower outlets of a multiple-compartment hopper assembly. The scattering mechanism includes a rotating horizontal scattering disc and rotating agitating and feeding elements which feed material from the hopper compartments to the disc. The rear section carries an engine-driven hydraulic pump supplying pressure hydraulic fluid to respective hydraulic motors driving the wheels of the front section. The rear section also carries a pivotally mounted transversely extending ground-scarifying blade assembly having a plurality of sod-piercing blades, the assembly being raised and lowered by hydraulic link means. The front section carries a tank for liquid chemicals, connected to a spray nozzle assembly at the rear portion of the front section, and the spray tank is provided with a hydraulically driven liquid pressurizing pump.

Independent Claims | See all claims (38)

1. 1. A lawn treating machine comprising a front body section having a first pair of ground-engaging supporting wheels, a rear body section having a second pair of ground-engaging supporting wheels, means for driving said ground-engaging supporting wheels, power-generating means mounted on said rear body section, vertical hinge means connecting said body sections, a steering motor connected to said hinge means so as to rotate said sections relative to each other to effect steering of the machine, hopper means mounted on said front section and being provided with a depending bottom discharge conduit means, and motor-driven rotating horizontal scattering disc means mounted on said front section spaced forwardly of said first pair of supporting wheels below said discharge conduit means.
2. 8. A lawn treating machine comprising a front body section having a first pair of supporting wheels, a rear body section having a second pair of supporting wheels, means for driving said body sections, hinge means connecting said front and rear body sections, steering means operatively connected to said hinge means to effect rotation of said body sections relative to each other, power generating means mounted on said rear body section operatively connected to said driving means, scattering means mounted on said front body section adjacent the forward end thereof and spaced forwardly of said first pair of supporting wheels, hopper means mounted on said front body section and being provided with discharge conduit means, and a ground scarifying assembly mounted on said machine and including substantially vertically oriented means for selectively raising and lowering said assembly into and out of engagement with the ground surface.
3. 29. A lawn treating machine which comprises a front body section having a pair of ground-engaging support wheels, a wheeled rear body section, means for driving said body sections, pivot means connecting said front and rear body sections, steering means operatively connected to said front body section and consisting of a single driving member extending therefrom and operatively connected to said rear body section to effect relative rotation between said front and rear body sections about said pivot means, power generating means on said rear body section, hopper means mounted on said front body section and being provided with discharge conduit means, and an operator's seat mounted on said front body section located behind said hopper means and sufficiently elevated to provide an operator seated therein a substantially clear view over said hopper means whereby the contents distribution thereof may be visually monitored by said operator.