Patents by Inventor Gregg R. Service

Gregg R. Service 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).

  • Unitary aligning and gapping apparatus for modular optical shaft encoder
    Patent number: 5057684
    Abstract: An apparatus and method is disclosed for centering a pattern wheel of a modular optical shaft encoder and setting a predetermined gap distance between the pattern wheel and a mask and photodetector. The apparatus is built in to the encoder and facilitates aligning and gapping of the pattern wheel with respect to the mask and photodetector during installation of the encoder about a rotatable shaft. The apparatus consists of a slidable linear cam which cooperatively engages a centering collar to urge the collar against a pattern wheel, the pattern wheel is in turn urged into a predetermined position. The collar is retractable from contact with the pattern wheel after the pattern wheel is mounted in position on the rotatable shaft to allow rotation of the wheel and the shaft.
    Type: Grant
    Filed: August 30, 1990
    Date of Patent: October 15, 1991
    Assignee: Robbins & Myers/Electro-Craft, a wholly owned sub. of Robbins & Myers, Inc.
    Inventor: Gregg R. Service