Patents by Inventor Robert A. Welch

Robert A. Welch 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: 4779290
    Abstract: A surgical glove (10) includes a ventral side (12) and a dorsal side (14) integrally connected thereto. The sides (12,14) include a thin layer (16) of stretchable air and water impermeable material and the dorsal side (14) includes a layer (18) of flexible armor (18) embedded in the stretchable air and water impermeable material (16). A method of making the surgical glove (10) includes the steps of dipping a mold shell (24) having the configuration of a human hand with a ventral side and a dorsal side (30) into a liquid (34) which is curable to the stretchable air and water impermeable material (16). A hand shaped layer (18) of the flexible armor is disposed on the dorsal side (30) of the shell (24) prior to curing the liquid (34). The shell (24) is dipped into the liquid (34) a second time to embed the fiber (18) within the liquid (34). Finally, the liquid ( 34) is cured to the stretchable air and water impermeable material (16).
    Type: Grant
    Filed: March 9, 1987
    Date of Patent: October 25, 1988
    Assignee: Wayne State University
    Inventors: Robert A. Welch, Mitchell P. Dombrowski
  • Patent number: 4554025
    Abstract: The removal of paint from a support device for a product in a paint finishing operation is improved by using a support device with a critical surface tension such that paint adheres to the surface, yet readily fractures and debonds when treated with a cryogenic liquid. The paint is then removed by contacting the cryogenically treated support device with a non-metallic, non-silica base solid, gas or liquid with sufficient force to effectively remove the paint.
    Type: Grant
    Filed: March 18, 1985
    Date of Patent: November 19, 1985
    Assignee: Air Products and Chemicals, Inc.
    Inventors: Thomas W. Burke, Robert A. Welch, Kevin S. Schmoyer, Bernard D. Bauman
  • Patent number: D256370
    Type: Grant
    Filed: July 12, 1978
    Date of Patent: August 12, 1980
    Assignee: Texas Instruments Incorporated
    Inventors: Shinpei Ichikawa, Robert A. Welch
  • Patent number: D259200
    Type: Grant
    Filed: July 12, 1978
    Date of Patent: May 12, 1981
    Assignee: Texas Instruments Incorporated
    Inventors: Robert A. Welch, Shinpei Ichikawa
  • Patent number: D260515
    Type: Grant
    Filed: November 13, 1978
    Date of Patent: September 1, 1981
    Assignee: Texas Instruments Incorporated
    Inventors: Robert A. Welch, Arthur W. Chin
  • Patent number: D261005
    Type: Grant
    Filed: August 21, 1978
    Date of Patent: September 29, 1981
    Assignee: Texas Instruments Incorporated
    Inventors: Shinpei Ichikawa, Robert A. Welch