Patents Assigned to Jesse L. Sigelman
  • Self-contained refrigerator open door indicator
    Patent number: 4691195
    Abstract: A device for indicating that a refrigerator door is open, includes a housing which is mountable on a refrigerator in the vicinity of the refrigerator door during the use of the device. A transducer is mountable at the refrigerator door gasket for changing an electrical parameter in response to the movement of the refrigerator door from its closed position to an open position. Circuitry disposed in the housing senses the change in the electrical parameter of the transducer to produce an alarm after a preselected time delay.
    Type: Grant
    Filed: February 26, 1985
    Date of Patent: September 1, 1987
    Assignee: Jesse L. Sigelman
    Inventors: Jesse L. Sigelman, Saul Miodownik