Patents by Inventor Bernard Van Emden

Bernard Van Emden 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).

  • Soap film gas flow measuring device
    Patent number: 4860592
    Abstract: A soap film gas flow measuring device for computing the rate of gas flow through the device by detecting each moment in time when a soap film crosses two positions in a flow tube through which the soap film is propelled by the gas flow, computing the time difference and calculating the flow rate. A set of insulated wire conductors is inserted through the flow tube at each position at which the soap film is to be detected and circuit means is used to detect a predetermined drop in conductivity between each set of conductors corresponding to the crossover point.
    Type: Grant
    Filed: December 16, 1987
    Date of Patent: August 29, 1989
    Assignee: Gilian Instrument Corp.
    Inventors: Bernard Van Emden, Roman Stobnicki