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Manufacturers Index - John Deere
Patents
This page contains information on patents issued to this manufacturer.

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USPTO = U.S. Patent Office . Images of the actual patent can be viewed on the U.S. Patent Office web site but a special TIFF viewer must be installed with your browser in order properly work. More information on how to configure your computer to view these patents can be found at TIFF image Viewers for Patent Images.
DATAMP = Directory of American Tool And Machinery Patents . A sister site to VintageMachinery.org with information on patents related to machinery and tools. A much easier user interface than the USPTO's for finding information on machinery patents.

Patent Number Date Title Name City Description
141,375 Jul. 29, 1873 Improvement in Plows Charles O. Nason Moline, IL The patented feature is the curved grooves in the side plates of the clevis structure and the clamping bolt with "butterfly" nut, coordinated with the curved frame for the adjustable depth gage wheel. The design of the forward portion of the clevis is not part of the patented feature.
The patent number appears on a "right side of plow beam" clevis side plate with part number ??105?? (maker unknown).
This style clevis appears in a catalog illustration for the DEERE PRAIRIE BREAKER plow; the accompanying text notes "patented clevis."
481,186 Aug. 23, 1892 Combined Clevis and Gage Wheel Gilpin Moore Moline, IL Clevis and adjustable gage wheel for the front of a plow beam. One of the bolts attaching the clevis to the beam is a wrench-headed pin. It is not specifically described in the specifications nor a part of the patented features.
This design appears in DEERE parts lists with numbers N4 and N8. A known example of the clevis is marked with the patent date.
627,546 Jun. 27, 1899 Machine for Shaping Metal by Rolls John Tedell Moline, Rock Island County, IL
629,113 Jul. 18, 1899 Improvements in Plow-Clevises Staley D. Poole Moline, IL Two-part adjustable clevis for steel frame; an option is shown for "height" adjustment with a sliding clamp.
1,243,972 Oct. 23, 1917 Clevis Wesley A. Paul (deceased) Moline, IL The patent describes the process to produced a clevis starting from a piece stamped from steel plate. The specific part shown in the drawings has not been identified.
Initial 1915 patent application renewed in 1917.
    Clevis Lola V. Paul (Admisistratrix) Moline, IL  
1,437,032 Nov. 28, 1922 Tool Holder for Cultivators Charles H. White Moline, Rock Island County, IL
1,441,717 Jan. 09, 1923 Tool Holder for Cultivators Charles H. White Moline, Rock Island County, IL
1,463,353 Jul. 31, 1923 Tool Holder Charles H. White Moline, Rock Island County, IL
1,625,043 Apr. 19, 1927 Internal Combustion Engine Harold E. McCray Waterloo, Black Hawk County, IA Original application filed 15 Feb, 1923. Divided and this application files 27 Apr, 1925.
1,648,737 Nov. 08, 1927 Internal Combustion Engine Harold E. McCray Waterloo, Black Hawk County, IA
1,803,120 Apr. 28, 1931 Internal Combustion Engine Harold E. McCray Waterloo, Black Hawk County, IA
2,222,274 Nov. 19, 1940 Fuel System for Internal Combustion Engines Anker K. Antonsen Cedar Falls, Black Hawk County, IA
D142,254 Aug. 21, 1945 Tractor Housing Henry Dreyfuss New York, NY
    Tractor Housing Theophilus Brown Moline, Rock Island County, IL  
D461,831 Aug. 20, 2002 Telehandler René Laberheim , France
    Telehandler William Edward Crookes Ann Arbor, Washtenaw County, MI  
6,988,363 Jan. 24, 2006 Hydraulic Active Boom Suspension for a Telehandler Marcus Bitter Rhineland-Palatinate,, Germany Abstract:

A suspension for the boom of a loading vehicle includes a hydraulic cylinder for raising and lowering, or for extending and retracting (in the case of a telescopic cylinder), a boom. A direction control valve is provided for selectively routing hydraulic oil to and from at least a head-end chamber of the cylinder. A position sensor senses the position of the hydraulic piston rod, at the start of operation, and sends a sends a target signal representing this beginning position to a control unit which determines the difference between the target signal and a signal representing a current position of the piston rod. When this difference equals a preset difference threshold, a pressure-limiting unit, in the form of a valve or choke, is activated so as to control fluid flow to and from the head-end chamber so as to return the piston rod to its initial position which generated the target signal. Different embodiments have different valve component arrangements for influencing the reaction time of the suspension and/or for adapting the circuitry for use with single-acting, double-acting or telescopic boom cylinders.