Patents by Inventor Susan C. Melvin

Susan C. Melvin 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).

  • Knife sharpener
    Patent number: 5245789
    Abstract: A knife sharpener has a slotted casing for housing grinding wheels made up of modular elements placed in back-to-back relation to form an assembly interfitting with a second assembly. The two assemblies rotate in opposite directions for peripheral grinding. Plastic gears adhesively fastened to the wheels interconnect a high speed universal motor to the grinding wheels to effect a 3.55 speed reduction. Simultaneous hollow grinding is effected with a burr free edge.
    Type: Grant
    Filed: May 26, 1992
    Date of Patent: September 21, 1993
    Assignee: Wen Products, Inc.
    Inventors: Spencer C. Rees, Daniel S. Pusateri, Susan C. Melvin
  • Handle
    Patent number: D438438
    Type: Grant
    Filed: January 6, 1999
    Date of Patent: March 6, 2001
    Assignee: Snap-on Tools Company
    Inventors: Susan C. Melvin, Kelly Wolcott
  • Impact wrench
    Patent number: D472782
    Type: Grant
    Filed: April 2, 2002
    Date of Patent: April 8, 2003
    Assignee: Snap-on Technologies, Inc.
    Inventors: Daniel S. Pusateri, Joshua Beer, Susan C. Melvin, Raymond E. Kinsley, James R. Brehm, John A. Pierman
  • Ratchet
    Patent number: D423891
    Type: Grant
    Filed: February 11, 1998
    Date of Patent: May 2, 2000
    Assignee: Snap-on Tools Company
    Inventors: Susan C. Melvin, Kelly Wolcott