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US3995569: Two part lawn treating machine

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Filing Information

Inventor(s) Robert N. Picardat ·
Assignee(s) PICARDAT ROBERT N ·
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 CodeA
International Classifications 18011;49;51;52 ·
38 Claims, No Drawings


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.

References Cited

U.S. Patent Documents

Document NumberAssigneesInventorsIssue/Pub Date
US2687307 Austermiller Aug 1954
US3247812 LUCIANO ALFRED J Luciano et al. Apr 1966
US3299982 FMC CORP Bacon Jan 1967
US3334702 INT HARVESTER CO Granryd Aug 1967
US3352261 BONNELL LARRY W Bonnell Nov 1967
US3446165 Magda et al. May 1969
US3544013 LAWN A MAT CHEM & EQUIPMENT CO Dorfman Dec 1970
US3583510 HASTINGS PAUL F Hastings Jun 1971
US3777991 PICARDAT R Picardat Dec 1973
US3822655 SCOTT & SONS CO O Benedict et al. Jul 1974
US3826209 JACKSON C MFG INC Jackson Jul 1974

Referenced By

Document NumberAssigneeInventorsIssue/Pub Date
NL1019190 SONSBEEK MONIQUE VAN SONSBEEK MEIHARD VAN Apr 2003
DE19648324 CLAAS OHG RENGER HERMANN et al. May 1998
DE3006871 DEERE & CO RIEDINGER FRANZ WILHELM Sep 1980
FR2451154 DEERE & CO Oct 1980
FR2403218 CRAVEN TASKER ANDOVER LTD Apr 1979
FR2722361 INTERGREEN FRANCE DURAND PHILIPPE et al. Jan 1996
FR2395692 CRAVEN TASKER ANDOVER LTD Jan 1979
US4290623 International Harvester Company George E. Bowman et al. Sep 1981
US4569296 MILLER BILL Bill Miller et al. Feb 1986
US4926768 Lawn Doctor, Inc. Robert J. Magda May 1990
US5934382 Walter B. Wilkins Aug 1999
US6062335 Class KGaA Hermann Renger et al. May 2000
US5865258 II; Jeff McGrew Feb 1999
US5823269 Francois Leclerc Oct 1998
US6173904 John A. Doherty et al. Jan 2001
US5904296 John A. Doherty John A. Doherty et al. May 1999
US4336760 Improved Lawn Equipment Corporation Sidney Cohen et al. Jun 1982
US4145980 A. Duda and Sons Inc. Vernie A. Boots Mar 1979
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US4317326 Deere & Company Franz W. Riedinger Mar 1982
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USD556787 Agri-Fab, Inc. Jay David Taber Dec 2007
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US6938829 John A. Doherty et al. Sep 2005
US8044823 Western Strategic Products, LLC John A. Doherty et al. Oct 2011
US8120473 Concaten, Inc. Christopher J. Rennie et al. Feb 2012
US8231270 Concaten, Inc. Kevin K. Groeneweg et al. Jul 2012
US8284037 Concaten, Inc. Christopher J. Rennie et al. Oct 2012
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US8497769 --
US8583333 --

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