Patents Assigned to Grinnel Corporation
  • Fire protection sprinkler head
    Patent number: 4618002
    Abstract: A fire protection sprinkler head of the automatic type including a latch for retaining a valve closure in standby position until a thermally responsive element releases the latch at a preset temperature to thereby release the closure to allow flow of fire-retarding fluid, the latch including a catch, typically in the form of a lip extending radially inwardly from the sprinkler body, a radially inwardly biased spring detent, and relatively separable, detent restraining elements.
    Type: Grant
    Filed: January 16, 1986
    Date of Patent: October 21, 1986
    Assignee: Grinnel Corporation
    Inventor: James W. Mears