F - Mech Eng,Light,Heat,Weapons – 16 – F
Patent
F - Mech Eng,Light,Heat,Weapons
16
F
267/68
F16F 9/16 (2006.01)
Patent
CA 1253526
GAS SPRING ABSTRACT A gas spring unit with an improved packing struc- ture for providing a lubricated guide and seal with the piston rod for containing a high-pressure gas while enabling the spring unit to function for a large number of operational cycles. The packing structure includes a pair of lubricating-type bushings disposed for slidable engagement with the piston rod, which bushings are axially spaced and confine a seal ring therebetween, the latter preferably being of polyurethane. The bushings are preferably impregnated with a lubricant such as graphite. The innermost bushing abuts against a shoul- der on the housing to avoid imposition of excessive compressive forces on the seal ring.
503302
Kirby Eades Gale Baker
Rantom Inc.
LandOfFree
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