Sealing boot for universal joint

Details Sealing boot for universal joint Sealing boot for universal joint

1981-02-26

1983-07-12

Petrakes, John

Rotary shafts, gudgeons, housings, and flexible couplings for ro

Housing

Flexible housing

F16D 384

Patent

active

043928382

ABSTRACT:
A sealing boot for a universal joint including a pair of terminal portions each engaged with different parts of the joint to provide a protective seal therefor. One of the terminal portions is structured as a non-return valve to permit fluid flow from the interior of the sealing boot to alleviate excess pressure. The non-return valve is formed by an annular collar having channels defined therein with a resilient sleeve extending exteriorly of the sealing boot to be lifted from engagement with a part of the universal joint when pressure within the channel exceeds a specified limit. A resilient sleeve extending interiorly of the sealing boot may also be provided so that atmospheric air may be permitted to enter the boot for pressure equalization.

REFERENCES:
patent: 3822570 (1974-07-01), Fisher
patent: 3858412 (1975-01-01), Fisher et al.
patent: 4202184 (1980-05-01), Krude et al.
patent: 4210002 (1980-07-01), Dore
patent: 4224808 (1980-09-01), Gehrke
patent: 4249395 (1981-02-01), Krude et al.

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