Patents by Inventor Donald L. Trigg

Donald L. Trigg 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: 4369685
    Abstract: An improved band saw blade for crafting the interior of a workpiece without defacing its periphery. A planar blade is provided having mating ends. Means located in the mating ends of the blade allow the blade to be threaded through the interior of the workpiece then joined to achieve a belt-like operational configuration.
    Type: Grant
    Filed: October 10, 1980
    Date of Patent: January 25, 1983
    Inventor: Donald L. Trigg
  • Patent number: 4273329
    Abstract: A housing containing a spring loaded retractable spool of line with a hooking member for attaching either the end of the line or the housing to a golf hole flag pole in order to play out the string from the spool to measure the distance between the flag stick and a golf ball on a putting green. In the embodiment where the housing is attached to the flag stick, the hooking member is formed from two pivotally connected clip members having arcuate first ends and pointed second ends. The arcuate first ends cooperate with each other to encircle the flag stick, for attaching the housing thereto, and the pointed second ends function as a tool for repairing ball marks in the turf. The line may have a marker slidably attached to the line for use when measuring the distance of a plurality of different golf balls from the flag stick.
    Type: Grant
    Filed: March 13, 1980
    Date of Patent: June 16, 1981
    Inventors: Donald L. Trigg, Richard V. Portolan