Patents Assigned to Central Sprinkler Corp.
  • Quick response glass bulb sprinkler
    Patent number: 4739835
    Abstract: A sprinkler head having a body portion with a fluid outlet port closed by a valve member retained in the closed position by a bulb of frangible material having three or more planar sides of uniform thickness and containing a heat-expansible fluid, the end of the bulb remote from the valve being supported by a deflector plate formed as part of a vertically adjustable three strut yoke depending from said body portion.
    Type: Grant
    Filed: June 23, 1986
    Date of Patent: April 26, 1988
    Assignee: Central Sprinkler Corp.
    Inventors: George S. Polan, Hermann R. Glinecke
  • Sprinkler head
    Patent number: 4619327
    Abstract: A sprinkler head has a valve member retained in a closed position by a latch. The latch is released by a temperature responsive controller in the form of a bulb of frangible material and containing a heat expansible fluid. Compressive loads on the bulb are reduced whereby the bulb may be smaller and thinner than prior bulbs.
    Type: Grant
    Filed: January 7, 1985
    Date of Patent: October 28, 1986
    Assignee: Central Sprinkler Corp.
    Inventor: George S. Pieczykolan