Patents Assigned to Safe-Test, Inc.
  • Patent number: 4873654
    Abstract: A testing device and method for inflatable objects comprising an arrangement of transducer sensors; connectors between the transducers and the inflatable object desired to be tested; processors electrically connected to the transducer sensors; a controller electrically connected to and interactive with the processors; and a display of the electrical output. The transducer sensors comprise a pressure transducer, a temperature transducer, and a load cell transducer. The temperature transducer is positioned generally adjacent to the valve nozzle of the inflatable object. The processors of the present invention comprise a multiplexer electrically connected to the transducer sensors, a differential amplifier electrically connected to the multiplexer, and a sample/hold amplifier electronically connected between the analog-to-digital converter and the differential amplifier. The controller comprises an input/output keyboard connected to the processors through an RS-232 communication line.
    Type: Grant
    Filed: February 9, 1987
    Date of Patent: October 10, 1989
    Assignee: Safe-Test, Inc.
    Inventors: William B. Alexander, Paul Frenger
  • Patent number: 4642783
    Abstract: A life raft testing device comprising an arrangement of transducer sensors; connectors between the transducers and the life raft desired to be tested; processors electrically connected to the transducer sensors; a controller electrically connected to and interactive with the processors; and a display of the electrical output. The transducer sensors comprise a pressure transducer, a temperature transducer, and a load cell transducer. The temperature transducer is positioned generally adjacent to the nozzle of the life raft. The processors of the present invention comprise a multiplexer electrically connected to the transducer sensors, a differential amplifier electrically connected to the multiplexer, and a sample/hold amplifier electrically connected between the analog-to-digital converter and the differential amplifier. The controller comprises an input/output keyboard connected to the processors through an RS-232 communication line.
    Type: Grant
    Filed: June 11, 1984
    Date of Patent: February 10, 1987
    Assignee: Safe-Test, Inc.
    Inventors: William B. Alexander, Paul Frenger