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US 5,382,006 AGranted
Airspring piston and airspring assembly
AssigneeThe Goodyear Tire & Rubber Company
InventorJohn E. Arnold
Life of this patent
Estimating the term…
Abstract
An airspring piston which combines the features of being easily assembled, providing full air volume utilization which contributes to a low spring rate of an airspring assembly, a rounded outer peripheral edge to facilitate its assembly with a beaded flexible airsleeve and a bead retention lip to retain a beaded airsleeve on the piston in low or no pressure situations. An airspring assembly comprised of the aforementioned piston, a beaded flexible airsleeve and an upper retainer.
Claims6
An airspring piston comprising:
- (a) a top plate having an outer peripheral edge which is rounded perpendicular to the general plane of the plate and a plurality of vents;
- (b) a bottom plate axially spaced from the top plate;
- (c) an inner tubular support connected between the top and bottom plates;
- and
- (d) an intermediate outer wall connected between the top and bottom plates, the upper portion of which includes a rounded shoulder inwardly and downwardly sloping to a horizonal flange and a bead seat area generally perpendicular to the flange and connected to the peripheral edge of the top plate such that the outer surface of the bead seat is radially inwardly offset from the outer peripheral edge of the top plate to form a bead retention lip.
2 more elements
Dependencies are inferred from the claim text.