Patents by Inventor Paul A. Andruk

Paul A. Andruk 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).

  • Publication number: 20170142956
    Abstract: Disclosed is a self-powered vehicle utilized in the field of agriculture, property maintenance, landscaping for use with estate or condominium ground maintenance. It is used for spraying pesticides, herbicides, fertilizer and the like and also for application of similar products in granular form, but further serves as a maintenance platform around a larger industrial facility. Its main payload area is also used for cargo and product transport. It offers high mobility and maneuverability. It is powered with gearhead motors connected to its drive wheels with batteries as its power source. They are charged by an engine driven generator all of which is mounted on the vehicle. Directional control is achieved by the use of a motorcycle handle bar in combination with rotary potentiometers. Each potentiometer controls pulse width of a pulse width modulator thereby controlling the speed of a gearhead motor. The vehicle is optionally a walk behind device but may be provided with a seat behind the handle bar.
    Type: Application
    Filed: November 20, 2015
    Publication date: May 25, 2017
    Inventor: Paul A. Andruk