Patents by Inventor Thomas Crowley

Thomas Crowley has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 4609151
    Abstract: Apparatus for spreading dry or granular materials such as lawn seed and/or lawn treatment chemicals that includes a support frame 18 rollingly supported by a pair of wheels 14 and a hopper 12 attached to the support frame that defines four substantially isolated material compartments 55-58. Discharge openings 65-68 are associated with each compartment; the outflow of material through the discharge openings is controlled by shutter-like gates 65a-68a, two of which are remotely controlled by lever mechanisms 78, 87 mounted on operating handles 20a, the other two of which are adjustable by an arrangement mounted near the hopper. Material discharged through the openings falls into a blending chamber 90 that includes a blending disc 96 rotated by a vertical shaft 98 that is coupled to an axle 32 by a gear box 40 that is drivingly engaged by one or both wheels.
    Type: Grant
    Filed: October 9, 1984
    Date of Patent: September 2, 1986
    Inventor: Thomas A. Crowley