Patents by Inventor Richard C. Devine

Richard C. Devine 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).

  • Double barbed plate with fastener
    Publication number: 20040148888
    Abstract: A two-piece fastener plate and fastener assembly and method of securing a roof membrane to a roof deck wherein the fastener is reinforced with concentric dome-shaped ribs separated by concentric depressions or dimples. The concentric depressions or dimples are provided with pairs of barbs for gripping the roof membrane when the fastener secures the roof membrane to the roof deck.
    Type: Application
    Filed: February 3, 2003
    Publication date: August 5, 2004
    Inventors: William P. Kuhn, Richard C. Devine
  • Self-drilling, self-tapping screw for concrete blocks
    Patent number: 6250866
    Abstract: A self-drilling, self-tapping screw for concrete blocks which includes a shank having a proximal portion equipped with a double lead, self-tapping spiral thread and an unthreaded portion which connects the threaded shank portion to a carbide drill tip in an axially spaced relationship. The length of the unthreaded portion of the shank is selected to allow the drill tip to form a clearance hole extending through the concrete block prior to engagement of the threaded shank portion with the clearance hole.
    Type: Grant
    Filed: February 11, 2000
    Date of Patent: June 26, 2001
    Assignee: Olympic Manufacturing Group, Inc.
    Inventor: Richard C. Devine
  • Circular double barbed plate with fastener
    Patent number: D492896
    Type: Grant
    Filed: February 3, 2003
    Date of Patent: July 13, 2004
    Assignees: Building Materials Investment Corporation
    Inventors: William P. Kuhn, Richard C. Devine
  • Circular double barbed plate with fastener
    Patent number: D494459
    Type: Grant
    Filed: February 3, 2003
    Date of Patent: August 17, 2004
    Assignees: Building Materials Investment Corporation
    Inventors: William P. Kuhn, Richard C. Devine