Quick release valve for sprinkler head

Details Quick release valve for sprinkler head Quick release valve for sprinkler head

1990-01-08

1991-02-19

Peters, Jr., Joseph F.

Fire extinguishers

Sprinkler heads

Collapsible strut

169 37, A62C 3714, A62C 3710, A62C 3711

Patent

active

049934961

ABSTRACT:
The invention relates to a formation of a release element, where the upper end and the lower end of a cylindrical or conical glass tube are closed by means of inwardly directed plugs.

REFERENCES:
patent: H121 (1986-09-01), Pieczykolan
patent: 4739835 (1988-04-01), Polan
patent: 4796710 (1989-01-01), Job
patent: 4898246 (1990-02-01), Riedle et al.

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