Abstract A nozzle construction including inlet and outlet ends is provided and the inlet end of the nozzle is adapted to be secured in the discharge port of a fire extinguisher. The outlet end of the nozzle is of a configuration designed to afford a stream-type discharge of any fire extinguishing material (dry chemical powder, liquid and/or pressurized gas) therefrom, whereby the fire extinguisher may be hand held and have the discharge from its nozzle directed toward the base of a fire to be extinguished. However, the nozzle is designed to be utilized on a heat sensing and automatic fire extinguisher of the wall type and the outlet end of the nozzle includes a discharge dispersion element removably supported therefrom and designed, when retained in position, to effect a wide dispersion of the stream of any fire extinguishing material being discharged through the nozzle. The purpose for widely dispersing the stream discharge of fire fighting material from the fire extinguisher as a result of its automatic operation when wall mounted is to enable the discharge of the fire extinguisher to completely saturate a room area into which the fire extinguisher is automatically discharged and the purpose of the removal dispersion element being to enable removal of the latter for the purpose of manually fighting a localized fire.
In combination with a fire extinguisher of the type including a discharge port for discharging a fire extinguishing material under pressure, a nozzle having a discharge passage extending therethrough having inlet and outlet ends, said nozzle being supported from said fire extinguisher with said inlet end communicating with said port, said passage being adapted to discharge a stream-type discharge from said outlet end, and a dispersion element removably supported from said nozzle in registry with said outlet end for dispersing said stream-type discharge, said fire extinguisher including automatic thermal responsive discharging means and manually operable discharging means, said manually operable discharging means including a manual operator shiftable between active and inactive positions, a first axially removable pin releasably retaining said manual operator in said inactive position, said dispersion element being removably secured to said nozzle against removal therefrom by means of a second axially removable pin, an elongated flexible tether member tethering said pins extending transversely through said nozzle passage together, said pins generally paralleling each other and being axially removable in the same direction whereby continued pulling on one pin in the direction effecting its removal will also result in removal of the other pin, said dispersion element, upon removal of the corresponding pin, being freely disengageable from said nozzle, and spring means operably connected between said nozzle and said element yieldingly biasing the latter outwardly from said nozzle in the direction in which said outlet end of said passage opens.
Claim 2
Dependent Claim
242 words
In combination with a fire extinguisher of the type including a discharge port for discharging a fire extinguishing material under pressure, a nozzle having a discharge passage extending therethrough having inlet and outlet ends, said nozzle being supported from said fire extinguisher with said inlet end communicating with said port, said passage being adapted to discharge a stream-type discharge from said outlet end, and a dispersion element removably supported from said nozzle in registry with said outlet end for dispersing said stream-type discharge, said fire extinguisher including automatic thermal responsive discharging means and manually operable discharging means, said manually operable discharging means including a manual operator shiftable between active and inactive positions, a first axially removable pin releasably retaining said manual operator in said inactive position, said dispersion element being removably secured to said nozzle against removal therefrom by means of a second axially removable pin, an elongated flexible tether member tethering said pins extending transversely through said nozzle passage together, said pins generally paralleling each other and being axially removable in the same direction whereby continued pulling on one pin in the direction effecting its removal will also result in removal of the other pin, said dispersion element, upon removal of the corresponding pin, being freely disengageable from said nozzle, and spring means operably connected between said nozzle and said element yieldingly biasing the latter outwardly from said nozzle in the direction in which said outlet end of said passage opens.
Claim 3
Dependent Claim
16 words
The combination of claim 1 wherein said fire extinguisher is of the dry chemical powder type.