Patents by Inventor Ronald A. Wadsworth

Ronald A. Wadsworth 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: 5704521
    Abstract: A low cost trigger sprayer comprises a pump body, a hand support flange extending laterally from the body for engaging an operator's hand when operating the sprayer, and a container closure cap on the body, the pump body comprising a pump cylinder, an upstanding dip tube support sleeve, and a laterally extending tubular outlet, the pump cylinder, support sleeve, tubular outlet, closure cap and hand support flange being of a one-piece molded plastic construction, and a separate cover overlying at least top and rearward ends of the pump body and extending to the hand support flange.
    Type: Grant
    Filed: June 6, 1995
    Date of Patent: January 6, 1998
    Assignee: Calmar Inc.
    Inventors: R. Pat Grogan, Ronald Wadsworth
  • Patent number: D293943
    Type: Grant
    Filed: October 3, 1985
    Date of Patent: January 26, 1988
    Assignee: La Shea Corporation
    Inventors: Ronald Wadsworth, Carl A. Meisterlin, Richard K. O'Neill, Richard P. Grogan
  • Patent number: D295796
    Type: Grant
    Filed: October 3, 1985
    Date of Patent: May 17, 1988
    Assignee: La Shea Corporation
    Inventors: Ronald Wadsworth, Carl A. Meisterlin, Richard K. O'Neill, Richard P. Grogan, Brian R. Lindley
  • Patent number: D326707
    Type: Grant
    Filed: June 1, 1990
    Date of Patent: June 2, 1992
    Assignee: The Dow Chemical Company
    Inventors: Scott A. Silvenis, Ronald A. Wadsworth
  • Patent number: D358198
    Type: Grant
    Filed: August 24, 1994
    Date of Patent: May 9, 1995
    Assignee: S. C. Johnson & Son, Inc.
    Inventor: Ronald Wadsworth
  • Patent number: D366692
    Type: Grant
    Filed: September 21, 1994
    Date of Patent: January 30, 1996
    Assignee: Calmar Inc.
    Inventor: Ronald Wadsworth
  • Patent number: D369742
    Type: Grant
    Filed: April 28, 1995
    Date of Patent: May 14, 1996
    Assignee: The Andrew Jergens Company
    Inventors: Phillip L. Brookshire, John W. Freudenberg, Ronald A. Wadsworth
  • Patent number: D371295
    Type: Grant
    Filed: January 6, 1995
    Date of Patent: July 2, 1996
    Assignee: Calmar Inc.
    Inventors: Ronald Wadsworth, Linda E. Haner
  • Patent number: D377602
    Type: Grant
    Filed: November 2, 1995
    Date of Patent: January 28, 1997
    Assignee: Calmar Inc.
    Inventor: Ronald Wadsworth
  • Patent number: D381581
    Type: Grant
    Filed: November 2, 1995
    Date of Patent: July 29, 1997
    Assignee: Calmar Inc.
    Inventor: Ronald Wadsworth