Patents by Inventor David R. Strassman

David R. Strassman 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: 8201653
    Abstract: A support for a self-balancing vehicle that allows users to operate the vehicle while standing or sitting. The support includes one or more sitting platforms connected to the vehicle. The sitting platforms are rotationally movable between standing and sitting positions. The sitting platforms are connected to the vehicle by support bars that run vertically from the sitting platforms to the body of the vehicle. Displaceable rods moveably attached to the support bars contact the underside of the sitting platforms when in the sitting position and extend past the support bars to the standing platform to activate the vehicle. A plate system interposed between where the displaceable rods extend from the support bars and the standing platform help to evenly distribute pressure exerted by the support bars on the standing platform.
    Type: Grant
    Filed: October 8, 2009
    Date of Patent: June 19, 2012
    Inventor: David R. Strassman
  • Patent number: 7798760
    Abstract: A vehicle-mounted cargo lift including a frame and carry arms suitable for carrying a scooter, a personal transportation device, or other cargo. The frame includes a power inverter/converter, which provides power to a motorized worm drive, which raises and lowers the carry arms. Wheel chocks on the carry arms hold in place the scooter wheels. The cargo lift attaches to the back of a vehicle via a trailer hitch.
    Type: Grant
    Filed: July 10, 2007
    Date of Patent: September 21, 2010
    Inventors: David R. Strassman, Jeré Fabick
  • Publication number: 20100117426
    Abstract: The present invention relates to a support for a self-balancing vehicle that allows users to operate the vehicle while standing or sitting. The support includes one or more sitting platforms connected to the vehicle. The sitting platforms are configured so that they are rotationally movable and can be in a standing position or a sitting position. The standing and sitting positions permit users to either stand or sit, respectively, while operating the vehicle. The sitting platforms are connected to the vehicle by support bars that run vertically from the sitting platforms to the body of the vehicle. Displaceable rods moveably attached to the support bars contact the underside of the sitting platforms when in the sitting position and extend past the support bars to the standing platform to activate the vehicle.
    Type: Application
    Filed: October 8, 2009
    Publication date: May 13, 2010
    Inventor: David R. Strassman
  • Patent number: 7037036
    Abstract: An articulated frame movable between a collapsed position and an extended position. A main wheel assembly is attached to the frame and movable between a support position where the main wheel assembly supports the frame and enables the asphalt seam heater to be towed behind a towing vehicle when the articulated frame is in the collapsed position, and a retracted position wherein the main wheel assembly does not support the frame. At least one asphalt heater of a defined configuration is disposed within and supported by the frame.
    Type: Grant
    Filed: March 15, 2004
    Date of Patent: May 2, 2006
    Inventor: David R. Strassman
  • Patent number: 6742959
    Abstract: Disclosed is a trailer which is self-propelled via a powered tongue jack and which optionally includes a light-weight, high-efficiency asphalt heater. The trailer is moved long distances, such as to and from work sites, using a towing vehicle, in conventional fashion. When at the work site (or storage site), the tongue jack is lowered to support the trailer in a generally horizontal position, and, by virtue of a powered jack wheel, can be used to position the trailer easily, quietly, and confidently, in either the forward or reverse direction. The jack is powered by any conventional means, including an ac or dc electric motor or an internal combustion engine. A reversible, variable-speed, dc electric motor powered by a conventional 12 Volt battery supply is preferred.
    Type: Grant
    Filed: March 13, 2003
    Date of Patent: June 1, 2004
    Assignee: DRS Limited
    Inventor: David R. Strassman
  • Publication number: 20030170075
    Abstract: Disclosed is a powered tongue jack for maneuvering trailers and a trailer and tongue jack combination including an asphalt heater.
    Type: Application
    Filed: March 13, 2003
    Publication date: September 11, 2003
    Inventor: David R. Strassman
  • Patent number: 6551017
    Abstract: A trailer is self-propelled via a powered tongue jack and which includes a light-weight, high-efficiency asphalt heater. The trailer is moved long distances, such as to and from work sites, using a towing vehicle, in conventional fashion. When at the work site (or storage site), the tongue jack is lowered to support the trailer in a generally horizontal position, and, by virture of a powered jack wheel, can be used to position the trailer easily, quietly, and confidently, in either the forward or reverse direction. The jack is powered by any conventional means, including an ac or dc electric motor or an internal combustion engine. A reversible, variable-speed, dc electric motor powered by a conventional 12 Volt battery supply is preferred.
    Type: Grant
    Filed: May 28, 1999
    Date of Patent: April 22, 2003
    Inventor: David R. Strassman
  • Patent number: 5460649
    Abstract: The invention provides a fiber-reinforced rubber asphalt concrete composition suitable for paving applications and a method of making the composition. Also provided is a method for converting a conventional asphalt plant to one capable of producing the fiber-reinforced rubber asphalt concrete composition of the invention and an apparatus suitable for doing same.
    Type: Grant
    Filed: June 6, 1994
    Date of Patent: October 24, 1995
    Inventor: David R. Strassman