Patents by Inventor John A. Lock

John A. Lock 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).

  • Changeable divider and index for a vehicle speed and distance transducer including a hall effect sensor
    Patent number: 5451868
    Abstract: A speed and/or distance transducer is mounted in a bolt-shaped hollow housing and is threaded into a transmission and locked in place with its detector and adjacent a toothed wheel which rotates to produce an electrical output. An indicia is provided on the head of the bolt to allow proper spacing of the end of the transducer relative to the toothed wheel. A divider converts the output of the detector and a switch with a rotary member can be accessed through a bolt opening to allow the divider ratio to be changed. A plug covers the opening after the dividing ratio has been selected.
    Type: Grant
    Filed: May 28, 1993
    Date of Patent: September 19, 1995
    Assignee: Arthur Allen Manufacturing Company
    Inventor: John A. Lock