Patents by Inventor James E Welch

James E Welch 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).

  • Automatic guard lifting system
    Patent number: 5850697
    Abstract: A new Automatic Guard Lifting System for automatically elevating a lower guard on a conventional circular saw thereby preventing the lower guard from interfering during cutting of an object.The inventive device includes a motor having a shaft secured to the circular saw, a sleeve having a slot secured within an upper guard, a cable connected to the shaft and the lower guard, and a limiting switch electrically connected to the motor.
    Type: Grant
    Filed: March 20, 1997
    Date of Patent: December 22, 1998
    Inventor: James E Welch