Universal joint

Rotary shafts – gudgeons – housings – and flexible couplings for ro – Having lubricating means – For coupling having torque transmitted via radially directed...

Reexamination Certificate

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Details

C464S136000

Reexamination Certificate

active

07033277

ABSTRACT:
The universal joint features caps that allow the insertion of grease without removal of the caps. Inside each cap is a bushing that replaces the bearings used in other universal joints. One embodiment of the universal joint features a device for protecting a rubber o-ring which fits inside the caps and around the pins. Another aspect of the universal joint features an arrangement for cleaning the grease under the cap. Another aspect of the universal joint is a stronger material that can withstand more extreme driving conditions.

REFERENCES:
patent: 1093822 (1914-04-01), Blum
patent: 1108567 (1914-08-01), Fox
patent: 1556467 (1925-10-01), Abell
patent: 1673399 (1928-06-01), Cutting
patent: 1926858 (1933-09-01), Peters
patent: 2040002 (1936-05-01), Jones
patent: 2153415 (1939-04-01), Frederick et al.
patent: 2903868 (1959-09-01), Stillwagon, Jr.
patent: 3818721 (1974-06-01), Wahlmark
patent: 4693698 (1987-09-01), Olson, II
patent: 4808144 (1989-02-01), Orain
patent: 2002/0077183 (2002-06-01), Sekine
patent: 691079 (1953-05-01), None

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