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Device for detecting urine in diapers

  • US 4,796,014 A
  • Filed: 03/24/1987
  • Issued: 01/03/1989
  • Est. Priority Date: 03/24/1987
  • Status: Expired due to Fees
First Claim
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1. A compact releasably securable urine-detecting device for a baby'"'"'s diaper to detect and signal the presence of urine comprising:

  • (a) means for sensing urine in a diaper in combination with means for fastening to a diaper,(b) means for signalling inside of a container,(c) said means for sensing in combination with means for fastening comprising a safety pin with a pair of spaced apart electrical conductors insulatively installed on it and connected to electrodes inside said container, to which said safety pin is secured and with which said safety pin is used to engage a diaper,(d) said container containing at least one battery, a pair of electrodes, a conductivity change sensor, a signal-producing integrated circuit, an alerting means and means for coupling them,(e) said safety pin being secured to said container at such an angle that not only does it allow the safety pin to open and close freely but it also enables the container to lie flat on a diaper to which the safety pin is fastened, whereby, in use, as the safety pin with electrical conductors is inserted and threaded through the front lower center of a diaper and when the conductors are bridged by urine, an electrical circuit is completed which produces an alerting signal for diaper-change.

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