Abstract A gas lighter has a cartridge containing fuel under pressure, and containing a pressure reducing regulator comprising a disc of plastic material having a slit extending from the periphery to the center. The slit is formed by a sharp thin blade and no material is removed. The disc is accurately sized on diameter and is contained within an accurately sized bore provided in the cartridge. A separate metallic head assembly is provided with a screw having a tapered end. Turning movement of the head assembly relative to the cartridge drives the end of the screw into the cartridge to puncture a wall thereof. Fuel under pressure passes through the slit disc regulator and through the punctured opening and through passages to reach a flame port in the head assembly.
A pressure reducing device for regulating the flow of pressurized gas from a container, comprising a non-metallic resilient circular disc having a closed slit exteNding inward from its periphery through which the gas may seep, the disc having a thickness equal to about one-half its diameter, the slit being formed by a sharp instrument without removal of material from the disc so that the walls of the slit when closed form a labyrinth passage, and means confining said resilient member on its periphery to keep the slit walls in closed contact.
Claim 2
Dependent Claim
91 words
A pressure reducing device for regulating the flow of pressurized gas from a container, comprising a non-metallic resilient circular disc having a closed slit exteNding inward from its periphery through which the gas may seep, the disc having a thickness equal to about one-half its diameter, the slit being formed by a sharp instrument without removal of material from the disc so that the walls of the slit when closed form a labyrinth passage, and means confining said resilient member on its periphery to keep the slit walls in closed contact.
Claim 3
Dependent Claim
23 words
The device set forth in claim 1 in which the disc is formed of plastic material having a durometer hardness of about 70.
Claim 4
Dependent Claim
20 words
The device set forth in claim 1 in which the slit extends radially to the center of the circular disc.