Patents by Inventor David Philip Engvall

David Philip Engvall 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: 9789552
    Abstract: A saw blade includes a plate with teeth. A tip pocket is formed in each of the teeth where the tip pocket has a first end and a second end and a continuously curved surface between the first end and the second end. A tip has a back face shaped to match the continuously curved surface. A joint joins the tip to the plate where the joint extends for substantially the length of the surface of the tip pocket and the back face. The continuously curved surface may have a wave profile. A top face of the tip and a peripheral face of the tooth may be coplanar.
    Type: Grant
    Filed: June 20, 2014
    Date of Patent: October 17, 2017
    Assignee: IRWIN INDUSTRIAL TOOL COMPANY
    Inventors: David Philip Engvall, Craig Davidson
  • Publication number: 20170292821
    Abstract: A tape measure may include a housing including an interior space and a brake opening in communication with the interior space, a reel rotatably supported within the interior space, a tape blade at least partially wound on the reel, and a finger brake positioned adjacent the brake opening. The finger brake may include a support frame attached to the housing and including a frame opening, and a flexible member attached to the support frame and extending over the frame opening. The flexible member may be configured to deflect or elastically deform from a released position in which the flexible member is spaced apart from the tape blade to an engaged position in which at least a portion of the flexible member contacts a portion of the tape blade.
    Type: Application
    Filed: April 12, 2017
    Publication date: October 12, 2017
    Inventors: Anthony DeLeo, Gregory David Parker, Sean Edward Lukan, David Philip Engvall
  • Publication number: 20150000497
    Abstract: A saw blade includes a plate with teeth. A tip pocket is formed in each of the teeth where the tip pocket has a first end and a second end and a continuously curved surface between the first end and the second end. A tip has a back face shaped to match the continuously curved surface. A joint joins the tip to the plate where the joint extends for substantially the length of the surface of the tip pocket and the back face. The continuously curved surface may have a wave profile. A top face of the tip and a peripheral face of the tooth may be coplanar.
    Type: Application
    Filed: June 20, 2014
    Publication date: January 1, 2015
    Inventors: David Philip Engvall, Craig Davidson
  • Patent number: D543812
    Type: Grant
    Filed: November 5, 2004
    Date of Patent: June 5, 2007
    Assignee: Irwin Industrial Tool Company
    Inventors: James Michael Burry, David Philip Engvall