Patents by Inventor Peter B. Carlson

Peter B. Carlson 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).

  • Monitor for gas piping system
    Patent number: 4100537
    Abstract: Apparatus for monitoring the pressure in a gas line and providing a visual and audible indication of a high or low pressure condition, the gas line having a pressure sensor for generating high and low pressure signals, comprising a visual indicator responsive to the high pressure signal for providing a high pressure visual indication, a visual indicator responsive to the low pressure signal for providing a low pressure visual indication, a system normal visual indicator which is normally maintained in an "on" condition, an audible alarm, circuit means responsive to either of the high or low pressure signals for turning off the system normal visual indicator and for activating the audible alarm, and a manual switch for deactivating the audible alarm.
    Type: Grant
    Filed: August 8, 1977
    Date of Patent: July 11, 1978
    Assignee: Taylor Medical Oxygen Services, Inc.
    Inventor: Peter B. Carlson