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Testing device and method for inflatable objects

  • US 4,873,654 A
  • Filed: 02/09/1987
  • Issued: 10/10/1989
  • Est. Priority Date: 06/11/1984
  • Status: Expired due to Fees
First Claim
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1. A testing device for evaluating an inflatable object having expandible wall comprising:

  • transducer means for converting the physical inputs of temperature and pressure from said inflatable object into electrical impulses, said transducer means comprising;

    a pressure transducer for evaluating the pressure of a gas within said inflatable object, said pressure transducer having a chamber connected thereto; and

    a temperature transducer having a nozzle for connection to a valve of said inflatable object, said temperature transducer positioned adjacent said nozzle, said temperature transducer for measuring the temperature of said gas within said chamber of said pressure transducer;

    connection means fastened to said transducer means for enabling said transducer means to be interactive with said physical inputs from said inflatable object, said connection means comprising a pressure transducer nozzle for connecting a valve of said inflatable object to said pressure transducer, said chamber of said pressure transducer being adjacent to and in air-tight connection with said pressure transducer nozzle, said chamber for allowing differential pressures within said chamber and said inflatable object to equalize upon connection of said pressure transducer nozzle to a valve of said inflatable object;

    processing means electrically connected to said transducer means for selectively converting said electrical impulses of said transducer means into signals relative to said physical inputs of temperature and pressure, each of said pressure transducer and said temperature transducer having electrically conductive lines extending therefrom to said processing means, the signals from said transducer means being passed as separate inputs of temperature and pressure to said processing means, said processing means evaluating said inflatable object based on said signals; and

    output means electrically connected to said processing means for producing a perceivable display of said signals from said processing means.

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