Patents by Inventor Donald L. Evans

Donald L. Evans 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: 4864671
    Abstract: A controllably inflatable cushion that includes a number of independently inflatable rows or zones of cells. Each row or zone is connected to the pressure port of a corresponding three-way valve, and the intake ports of the valves are connected to a pump. The pump and valves are controlled by a microprocessor control means which receives input from a pressure sensor and input switches. The input switches allow the user to set desired inflation sequences of the rows or zones and pressures at which the cushion is to be inflated. The pressure sensor provides feedback signals to control inflation pressure. The microprocessor also actuates light-emitting diodes or other indicator means to let the user know when the device is on, when the pump or any valve is actuated, or when the battery in the power supply is low.
    Type: Grant
    Filed: March 28, 1988
    Date of Patent: September 12, 1989
    Assignee: Decubitus, Inc.
    Inventor: Donald L. Evans
  • Patent number: 4438852
    Abstract: A modular desk organizer is disclosed which includes a pair of organizing units (12, 14) joined into a common assembly by an adapter (16). The adapter (16) includes a pair of support shelves (32) having apertures (34) formed therein and positioned so that the adapter (16) can be securely attached to adjoining organizing units while ensuring that the organizing units are horizontally stable.
    Type: Grant
    Filed: June 15, 1981
    Date of Patent: March 27, 1984
    Assignee: Don Evans, Inc.
    Inventor: Donald L. Evans
  • Patent number: 3982307
    Abstract: A fabric clamp suitable for holding together pieces of fabric, such as surgical drapes, towels and the like, which is relatively compact and inexpensive. The clamp has two resilient arcuate members which are joined together at one end of each member with the arcuate members respectively having convex and concave jaws at their other ends. Latch members extending inward from the arcuate members engage when the clamp is pressed together to maintain the jaws in engagement. Release of the latch members is accomplished by laterally displacing the arcuate members of the clamp. The clamp may have multiple closed clamping positions, and finger members may be provided which are formed on the interior of the arcuate members in position to grasp a tube or other object therebetween when the clamp is closed.
    Type: Grant
    Filed: February 4, 1976
    Date of Patent: September 28, 1976
    Assignee: Med-Pro, Ltd.
    Inventors: Gordon E. Smith, Donald L. Evans
  • Patent number: D260102
    Type: Grant
    Filed: December 11, 1978
    Date of Patent: August 4, 1981
    Assignee: Don Evans, Inc.
    Inventor: Donald L. Evans
  • Patent number: D275771
    Type: Grant
    Filed: May 21, 1982
    Date of Patent: October 2, 1984
    Assignee: Don Evans, Inc.
    Inventor: Donald L. Evans
  • Patent number: D276286
    Type: Grant
    Filed: May 21, 1982
    Date of Patent: November 13, 1984
    Assignee: Don Evans, Inc.
    Inventor: Donald L. Evans