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Heating pad

  • US 4,396,011 A
  • Filed: 01/09/1981
  • Issued: 08/02/1983
  • Est. Priority Date: 01/09/1981
  • Status: Expired due to Fees
First Claim
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1. A vibrating electric heating pad comprising:

  • a vibrator;

    a control module; and

    a heating pad;

    wherein said vibrator comprises a housing having therein a rotary motor with an eccentric weight on its shaft;

    said motor being attached to a dish shaped vibration plate protruding through an opening in the base of said housing;

    said dish shaped vibration plate having a flat base and an outwardly extending flange around the periphery thereof;

    said flange being surrounded and supported by a foam cushion mounting in said housing so that said vibration plate does not come in contact with said housing;

    said vibrator being physically attached to said heating pad by detachable fasteners;

    and wherein said control module is electrically connected to said vibrator motor by a jack socket which receives a jack plug connected to said vibrator motor and said control module is permanently attached by an electric power cord to said heating pad;

    and wherein said control module comprises a housing having therein a main power cord for plugging into an electrical power source;

    said main power cord having one lead thereof electrically connected to a step down transformer rectifier through a multiposition slide switch and radio frequency filter and said main power cord having the other lead thereof directly connected to said step down transformer/rectifier;

    and wherein an output lead of said transformer/rectifier is electrically connected to said heating pad for energization thereof;

    and wherein another output lead of said transformer/rectifier is electrically connected to said jack socket which receives said jack plug connected to said vibrator motor whereby rectified direct current is supplied to said vibrating motor for energization thereof.

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