Patents by Inventor George F. Nasworthy, Jr.

George F. Nasworthy, Jr. 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).

  • Compact fluid coupler for thermal inkjet print cartridge ink reservoir
    Patent number: 5953033
    Abstract: A method for joining two materials together to form a compact leak-resistant seal, particularly suited for use in thermal inkjet print cartridge ink reservoirs. The seal employs a shrink fit to clamp the two materials together. The method includes the steps of forming the first material into a desired first shot structure, placing the first shot structure in a second shot mold, and injecting the second material into the mold under adequate pressure and at an appropriate temperature. The second material has a high degree of mold shrinkage. Upon cooling, the second material shrinks tightly onto the first shot structure to form a molded joint which keeps air out and ink in when wetted and during normal shipping, storage, and operating conditions.
    Type: Grant
    Filed: October 29, 1997
    Date of Patent: September 14, 1999
    Assignee: Hewlett-Packard Company
    Inventors: James G. Salter, James E. Clark, David W. Swanson, George F. Nasworthy, Jr.
  • Compact fluid coupler for thermal inkjet print cartridge ink reservoir
    Patent number: 5684521
    Abstract: A method for joining two materials together to form a compact leak-resistant seal, particularly suited for use in thermal inkjet print cartridge ink reservoirs. The seal employs a shrink fit to clamp the two materials together. The method includes the steps of forming the first material into a desired first shot structure, placing the first shot structure in a second shot mold, and injecting the second material into the mold under adequate pressure and at an appropriate temperature. The second material has a high degree of mold shrinkage. Upon cooling, the second material shrinks tightly onto the first shot structure to form a molded joint which keeps air out and ink in when wetted and during normal shipping, storage, and operating conditions.
    Type: Grant
    Filed: June 7, 1995
    Date of Patent: November 4, 1997
    Assignee: Hewlett-Packard Company
    Inventors: James G. Salter, James E. Clark, David W. Swanson, George F. Nasworthy Jr.
  • Printer
    Patent number: D533218
    Type: Grant
    Filed: August 12, 2004
    Date of Patent: December 5, 2006
    Assignee: Hewlett-Packard Development Company, LP.
    Inventors: Scott Gant, David W. Leong, George F. Nasworthy, Jr.
  • Combined ink-jet copier, printer, scanner
    Patent number: D398632
    Type: Grant
    Filed: March 4, 1997
    Date of Patent: September 22, 1998
    Assignee: Hewlett-Packard Company
    Inventors: Charles W. Dodge, George F. Nasworthy, Jr., Heinz Waschhauser, Iulius Lucaci