Patents by Inventor George O. Cramer

George O. Cramer 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: 5906078
    Abstract: A clean environment enclosure assembly (10) fabricated of a framework comprising a plurality of struts (18, 118, 218) with a plastic sheet (20) suspended between the struts (18, 118, 218) to define an enclosed space (12). A cap (22, 122, 222) is secured to and extends longitudinally along each of the struts (18, 118, 218), the cap (22, 122, 222) presenting a generally planar outer surface (24, 124, 224) and a groove (26, 126, 226) extending longitudinally there along. The sheet (20) is disposed in the groove (26, 126, 226) and overlays the planar surface (24, 124, 224) of the cap (22, 122, 222). A retainer strip (28, 128, 228) is retained in the groove (26, 126, 226) to sandwich the sheet (20) in the groove (26, 126, 226).
    Type: Grant
    Filed: June 17, 1997
    Date of Patent: May 25, 1999
    Assignee: Gallagher-Kaiser Corporation
    Inventor: George O. Cramer
  • Patent number: 5224306
    Abstract: A clean environment enclosure assembly (10) prevents contaminants from reaching unfinished products during the manufacturing process. The clean environment enclosure assembly (10) includes a plurality of frames (16) which are secured to each other using various shaped brackets (60, 62, 64) to form a structural frame. Sheets of plastic (22) extend across each of the plurality of frames (16) to complete the housing (14). The sheets of plastic (22) are secured to side members (18) of the frames (16) by elongated caps (24) which run the length of the side members (18). The caps (24) have two arms (30, 32) which engage the two substantially parallel side walls (42) of the side members (18) wherein detents (38,40) of the two arms (30, 32) engage indents (44, 46) of the parallel side walls (42) preventing the cap (24) from freely disengaging the side member (18). The sheets of plastic (22) are sandwiched between the cap (24) and the side members (18).
    Type: Grant
    Filed: November 13, 1991
    Date of Patent: July 6, 1993
    Assignee: Gallagher-Kaiser Corporation
    Inventor: George O. Cramer