Patents by Inventor Donald M. Link

Donald M. Link 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).

  • Bag caddy
    Publication number: 20040212208
    Abstract: The bag caddy,having protruding hooks used to hold the handles of plastic bags in place, while driving the car, and facilitate carrying the bags by the handle to the destination.
    Type: Application
    Filed: April 28, 2003
    Publication date: October 28, 2004
    Inventor: Donald M. Link
  • Bicycle sprocket lock
    Patent number: 5730012
    Abstract: A Bicycle Sprocket Lock (1) with indents (2) fits holes (3) to impede or free the sprocket (5) and is secured by a shackle (4) through holes (3) intersecting said lock.
    Type: Grant
    Filed: January 15, 1997
    Date of Patent: March 24, 1998
    Inventor: Donald M. Link
  • Rotary steam engine having rotor side plates
    Patent number: 5364249
    Abstract: A rotary steam engine has a working chamber (14), with first and second cylindrical rotors (1,2) mounted in overlapping cylindrical chamber portions (26, 27) for rotation about respective parallel axes (24, 25), connected by gears (18) for synchronized rotation. The first rotor (1) has at least one pusher (21) extending radially outward of the first rotor's circumferential surface, and the second rotor's circumferential surface has a corresponding at least one indenture (22) shaped to receive the pusher (21) during rotation of the two rotors (1, 2 ) . Side plates (4) attached to the first rotor (1) for rotation with the first rotor (1), press against spring-loaded seals (34) and the second rotor (2) to provide improved sealing with minimum wear.
    Type: Grant
    Filed: October 28, 1993
    Date of Patent: November 15, 1994
    Inventor: Donald M. Link