Spring devices – Vehicle – Comprising compressible fluid
Patent
1999-06-29
2000-08-29
Schwartz, Christopher P.
Spring devices
Vehicle
Comprising compressible fluid
267 6427, 411171, F16F 904
Patent
active
061095982
ABSTRACT:
An air spring has a pair of spaced end members for mounting the spring at spaced locations on a structure. A flexible sleeve of elastomeric material is sealingly engaged with the end members and forms a pressurized fluid chamber therebetween. A post is mounted on one of the end members and extends into the fluid chamber. A shock absorbing bumper having an outer shell formed of a high strength first plastic material is mounted on the post. The shock absorbing bumper shell is formed with a plurality of internal compartments containing one or more blocks formed of a second plastic material. The second plastic material preferably is a thermoplastic and is stronger in compression than the first plastic material of the outer shell. The relatively stronger but stiffer blocks are surrounded by the relatively softer plastic material of the outer shell and provides a bumper having extremely high compressive strength and a high resistance to breakage or fracture.
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Henderson Terry J.
Hilburger Mark D.
Leonard Daniel J.
Peickert Andreas
Taghizadeh Mohamad
Bridgestone/Firestone Inc.
Lipka Pamela J.
Sand Michael
Schwartz Christopher P.
Vasuta John M.
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