Patents Assigned to American Tactile Corporation
  • Patent number: 5554685
    Abstract: The invention is a composition of matter used in the making of raised characters for use in signs, and a method of manufacturing raised characters made from the composition. The matter is a polymerizable composition comprising a silicone rubber compound, and about 10 to about 50 weight percent of a silica filler based on the weight of the polymerizable composition. Moreover, the composition of matter is a curable composition comprising a vinyl resin selected from a vinyl plastisol or vinyl organosol, and about 10 to about 50 weight percent of a silica filler based on the weight of curable composition. The invention also includes a method of manufacturing raised characters for use in signs comprising machining the characters from a partially cured polymerizable material.
    Type: Grant
    Filed: October 11, 1995
    Date of Patent: September 10, 1996
    Assignee: American Tactile Corporation
    Inventors: Wayne L. Dorpfeld, Robert W. Williams, Arnold R. Wolfe
  • Patent number: 5504144
    Abstract: The invention is a composition of matter used in the making of raised characters for use in signs, and a method of manufacturing raised characters made from the composition. The matter is a polymerizable composition comprising a silicone rubber compound, and about 10 to about 50 weight percent of a silica filler based on the weight of the polymerizable composition. Moreover, the composition of matter is a curable composition comprising a vinyl resin selected from a vinyl plastisol or vinyl organosol, and about 10 to about 50 weight percent of a silica filler based on the weight of curable composition. The composition of matter may be a silicone rubber compound. The invention also includes a method of manufacturing raised characters for use in signs comprising machining the characters from a partially cured polymerizable material.
    Type: Grant
    Filed: December 23, 1992
    Date of Patent: April 2, 1996
    Assignee: American Tactile Corporation
    Inventors: Wayne L. Dorpfeld, Robert W. Williams, Arnold R. Wolfe