Anti-roll ribbed seal

Abstract

The present invention provides an anti-roll ribbed seal, particularly to a resilient, fluid-tight seal for shafts, pistons and the like having a plurality of radially oriented, spaced-apart ribs or webs extending between adjacent oblique circular flanges or features of a seal. The radially oriented ribs or webs provide added stiffness to the flanges or features to prevent them from rolling under during assembly procedures but do not increase the radial spring constant and thus do not appreciably increase the drag created by the seal on a shaft or piston.

Description

technical field [0001] The present invention relates to elastomeric fluidtight seals for rotating shafts, sliding pistons, etc., and more particularly to elastomeric fluidtight seals having ribs that resist rolling and deformation that typically occur during assembly, Rolling and deformation can compromise seal integrity and life. Background technique [0002] The statements in this section merely provide background information related to the present disclosure and may or may not constitute prior art. [0003] Many mechanical devices (such as motors, engines, transmissions, valves, actuators, and hydraulic components) require elastomeric seals to remove impurities or to retain fluids (such as lubricating oil and hydraulic fluid) in the device, usually two There are all kinds of situations. For obvious reasons, such seals are usually round to accommodate the shaft and piston, and are manufactured from an elastomer such as rubber or a synthetic material such as polytetrafluo...

AI Technical Summary

Problems solved by technology

Deformed seals are therefore very difficult to detect during installation

[0005] Seal failure can be easily detected after seal failure (which is manifested by fluid leakage), but at this point repairs are time consuming and expensive

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