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US 6,361,028 B1Granted
Solid girdle hoop for an air spring and method of assembly
AssigneeBridgestone/Firestone, Inc.
InventorRandall R. Hubbell
Life of this patent
Estimating the term…
Abstract
A fluid device such as an air spring includes a pair of parallel spaced end members and an elastomeric sleeve interposed therebetween to define a fluid pressure chamber therein. A girdle hoop is formed of cold rolled solid steel in a toroidal configuration and is molded into the elastomeric sleeve parallel and preferably spaced equidistant from the end plates.
Claims7
A fluid pressure device including a pair of end members and an intervening elastomeric sleeve forming a fluid pressure chamber therein;
- and
- a girdle hoop disposed within said sleeve between said end members, said girdle hoop being of a substantially toroidal shape and formed of a solid steel material having a cross sectional diameter (D1) which is between 4% and 5% of the outer diameter (D2) of said hoop.
Dependencies are inferred from the claim text.