F - Mech Eng,Light,Heat,Weapons – 16 – K
Patent
F - Mech Eng,Light,Heat,Weapons
16
K
137/41
F16K 17/26 (2006.01) F16K 17/196 (2006.01)
Patent
CA 1073318
SAFETY VENT VALVE ABSTRACT OF THE DISCLOSURE A safety valve for pressure-venting sealed, fluid-holding drums, or other containers, to prevent explosions, and providing for admission of ambient atmosphere to the container, to equalize internal and external pressures and thereby permit fluid to be with- drawn from the container. The valve shell comprises a capped tube, which has only a single thread formed thereon, and a plurality of shelf-like abutments which extend peripherally of interior wall portions of the tube and are shaped and disposed to provide support for interior, nested, valve parts, including a pair of flame-retardant screens, a pair of oppositely displaceable valving devices, valve seat structure, and spring means to establish the loading of each of said devices.
265955
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