Patents by Inventor Irwin D. Prager

Irwin D. Prager has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 8443823
    Abstract: A flood detection and valve shutoff device which comprises a water sensitive sensor. A mechanism is for retaining the water sensitive sensor on a floor near a water heater. Another mechanism is for biasing a valve in a water inlet pipe of the water heater to a closed position. A lanyard in a taut condition extends between the water sensitive sensor and the biasing mechanism, so as to keep the valve in an open position. When the water sensitive sensor detects water on the floor the lanyard will be released from the water sensitive sensor, causing the biasing means to move the valve from the open position to the closed position.
    Type: Grant
    Filed: October 24, 2011
    Date of Patent: May 21, 2013
    Inventor: Irwin D. Prager
  • Patent number: 4551106
    Abstract: Life preserving equipment in the form of an elongated housing having an open side and a cover for said housing hinged at one end thereto, an inflatable member having a compressed gas cartridge including a diaphragm within the member including a cartridge puncturing pin and cooperating lever and levers carried by the housing and cover and operable upon opening of the cover to actuate the cooperating lever and force the pin into the diaphragm to permit the discharge of gas into the member for inflation thereof and a cord tethering the member to the housing.
    Type: Grant
    Filed: March 21, 1984
    Date of Patent: November 5, 1985
    Inventor: Irwin D. Prager
  • Patent number: 4272922
    Abstract: A support for holding a guard in overlying relationship to a window which includes a pair of spaced bracket members carrying an elongated bar having guard engaging pins, window engaging locking arms adjoining said brackets and supported for movement along an axis parallel to the elongated bar, each locking arm having window frame engaging pins which when engaging the window frame will hold the support in position. At least two supports are used on each window and may be vertically or horizontally disposed to hold the guard.
    Type: Grant
    Filed: June 25, 1979
    Date of Patent: June 16, 1981
    Inventor: Irwin D. Prager