Double cardan universal joint

Details Double cardan universal joint Double cardan universal joint

1983-03-30

1985-04-02

Levy, Stuart S.

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

Having lubricating means

For coupling having torque transmitted via radially directed...

464118, F16D 326

Patent

active

045085226

ABSTRACT:
An improvement in a double Cardan universal joint having a pair of spiders connected by a ring-shaped coupling member, a pair of yoke members angularly movably connected with each other by the spiders, a centering assembly for aligning the yoke members with each other and defining a reservoir for grease within a bridge forming a part of one of the yoke members and a breather hole formed in the bridge for making the reservoir communicate with the atmosphere. The improvement comprises a valve of elastic material inserted in the breather hole and capable of elastically blockading the communication of the reservoir with the atmosphere when internal pressure of the reservoir is below a predetermined amount and being elastically deformed to make the reservoir communicate with the atmosphere when the internal pressure reaches or exceeds the predetermined amount.

REFERENCES:
patent: 1932400 (1933-10-01), Fageol
patent: 1968787 (1934-07-01), Slaght et al.
patent: 2025502 (1935-12-01), Fageol
patent: 2769457 (1956-11-01), Wittenberg
patent: 3120746 (1964-02-01), Kayser
patent: 3454182 (1969-07-01), Morton
patent: 3648728 (1972-03-01), Perry et al.
patent: 3835667 (1974-09-01), King et al.
patent: 3858412 (1975-01-01), Fisher et al.
patent: 4207757 (1980-06-01), Onuma

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