초록 ▼

An initiator device for activating air crew escape systems comprising a housing of elongate cylindric configuration defining a central chamber having a propellant gas discharge bore at one end and being open at the other end for receiving and static pressure mounting in the central chamber a pyrotec

An initiator device for activating air crew escape systems comprising a housing of elongate cylindric configuration defining a central chamber having a propellant gas discharge bore at one end and being open at the other end for receiving and static pressure mounting in the central chamber a pyrotechnic cartridge that is held in mounted position by a separate screw threaded head screw threadedly mounted in the housing open end, with the cartridge including a metallic body defining a compression chamber having at the portion of same that is engaged by the housing head, and having a piston received in the compression chamber that is frangibly secured to the cartridge body; the cartridge body also defines a separate pyrotechnic material receiving chamber that is open to the body compression chamber with a column of suitable pyrotechnic materials, tailored in light of the job to be done by the initiator, being mounted in the pyrotechnic material receiving chamber having a head end and terminating with an initiator pressure propellant charge, the initiator device head being formed and mounted, for driving the cartridge piston across the cartridge compression chamber to ignite by adiabatic compression the head end of pyrotechnic column contained in the cartridge, whereby on ignition of the propellant charge, the initiator activates air crew escape systems.

대표청구항 ▼

A pyrotechnic material actuated initiator device for activating emergency equipment, said initiator device comprising: a housing defining a central chamber of cylindric configuration having a discharge bore at one end of same and being open at the other end of same, said housing defining an annular

A pyrotechnic material actuated initiator device for activating emergency equipment, said initiator device comprising: a housing defining a central chamber of cylindric configuration having a discharge bore at one end of same and being open at the other end of same, said housing defining an annular shoulder about said chamber adjacent said other end of said housing, a pyrotechnic cartridge mounted in said chamber, said cartridge including: a body having a head portion adjacent one end of same for seating against said annular shoulder and being chambered adjacent the other end of same for mounting pyrotechnic material means in a pyrotechnic column having a head facing said body one end, said body adjacent said one end of same defining a cylinder aligned with the pyrotechnic column head and having a piston mounted in said cylinder in close fitting relation thereto adjacent said one end of said body, said cylinder being proportioned lengthwise thereof to define a piston stroke toward and against the pyrotechnic column head end, means for spacing the pyrotechnic column head end from said piston at the end of the piston stroke when effected, and a head secured in said other end of said body and against said head portion of said cartridge body for biasing said cartridge body against said housing shoulder for centering said cartridge body in said housing and directing said cartridge other end toward said housing discharge bore, said head having a bore therethrough directed at said piston, and means for acting through said head bore for effecting thrust of said piston toward said pyrotechnic material head end to effect adiabatic compression ignition of same for initiating discharge from said housing discharge bore.