Patents Assigned to Horstmann Gear Group Ltd.
  • Battery powered gas level indicator
    Patent number: 4250737
    Abstract: A gas level indicator incorporates two Taguchi-type sensing elements, one of which is to receive air to be sampled and the other of which is insulated therefrom. A comparator circuit receives the outputs of the two elements, and an indicator actuated by the output of the circuit announces the result of the comparison. Preferably, both sensing elements are mounted in a single housing, and an elongated pipe and a fan or aspirator provided to form a probe for drawing air to be sampled from a remote position to the one element.
    Type: Grant
    Filed: July 19, 1979
    Date of Patent: February 17, 1981
    Assignee: Horstmann Gear Group Ltd.
    Inventor: Timothy J. Biglin