Patents by Inventor Wilfred J. Hoffmann

Wilfred J. Hoffmann 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: 7950099
    Abstract: A caulk working tool for working caulk against first and second surfaces defining an intersection comprising a shaft member and a scraper body. The shaft member is substantially rigid, and scraper body is substantially resilient. The scraper body is molded over the shaft member and comprises a scraper surface defining a point and first and second sides. The scraper body deforms when the first and second sides are held in contact with the first and second surfaces. The caulk working tool is displaced relative to the first and second surfaces while the first and second sides are in contact with the first and second surfaces to cause the scraper surface to work the caulk against the first and second surfaces and form a desired profile in the caulk.
    Type: Grant
    Filed: September 7, 2007
    Date of Patent: May 31, 2011
    Assignee: Homax Products, Inc.
    Inventors: Randal W. Hanson, Wilfred J. Hoffmann, Gloria Hoffmann, legal representative
  • Publication number: 20080209657
    Abstract: A scraper system for removing caulk beads from at least one surface. The scraper system comprises a handle portion and a scraper portion. The scraper portion comprises a first scraper structure defining a first scraper edge and a second scraper structure defining a second scraper edge. The second scraper edge comprises a first scraper edge portion and a second scraper edge portion, and the first and second scraper edge portions extend at a first angle with respect to each other. The scraper system may be used in a first mode in which the first scraper edge is used to remove caulk beads from the at least one surface and a second mode in which the second scraper edge is used to remove caulk beads from a plurality of surfaces.
    Type: Application
    Filed: February 7, 2008
    Publication date: September 4, 2008
    Inventors: Wilfred J. Hoffmann, Gloria Hoffmann