Fire extinguishers – Fluid systems – Distributing systems
Patent
1996-11-04
1998-04-28
Pike, Andrew C.
Fire extinguishers
Fluid systems
Distributing systems
169 37, 169 51, 2392885, A62C 3750
Patent
active
057433372
ABSTRACT:
A relocatable sprinkler assemblage includes a flexible conduit connecting to a source of fire-suppression fluid, a heat-sensitive sprinkler head, a rigid fitting connecting the conduit to the sprinkler head, and a removable cap that, together with the fitting, creates a watertight compartment around the sprinkler head so that the assemblage can be moved while the sprinkler system remains pressurized and operational. The cap includes alerts the user to the condition of the sprinkler head, whether or not the head has been activated during the relocation process. In one embodiment, the cap is transparent, so that the condition can be determined by looking for fluid inside the cap. In another embodiment, the cap has a valve that can be operated manually to determine if there is fluid in the cap. In a third embodiment, the cap has a flexible bag that appears rigid if there is pressurized fluid in it.
REFERENCES:
patent: 2017841 (1935-10-01), Coleman
patent: 2890758 (1959-06-01), Pfalzgraff et al.
patent: 3388747 (1968-06-01), Hodnett
patent: 3727695 (1973-04-01), Danton
patent: 4706759 (1987-11-01), Grasseschi
patent: 4964470 (1990-10-01), Gaulin
patent: 5327976 (1994-07-01), Hattori
patent: 5396959 (1995-03-01), MacDonald
patent: 5570745 (1996-11-01), MacDonald, III
Pike Andrew C.
PNM, Inc.
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