Pin joint for eccentric worm pumps

Details Pin joint for eccentric worm pumps Pin joint for eccentric worm pumps

1988-08-18

1990-03-13

Reese, Randolph A.

Joints and connections

Articulated members

Pivoted

403145, 418 48, F16D 112

Patent

active

049079069

ABSTRACT:
Two pin joints, each mounted at a respective end of a coupling rod, each comprise an outer joint head including a cavity which is open at least in one axial direction as well as a diametral bore and an inner joint head disposed in the cavity and likewise including a diametral bore. A pin extends through both bores and is locked at the outer joint head by a pin retaining device. To accomplish that, the pin has two ends projecting radially out of the outer joint head and each formed with a notch transversely of the longitudinal direction of the pin. The pin retaining device is embodied by a helical spring supported at its one end in the two notches of the pin and at its other end on a shoulder. The shoulder preferably is formed at a sliding ring seal which seals the outer joint head against a housing member.

REFERENCES:
patent: 2165619 (1939-07-01), Doeg
patent: 2422327 (1947-06-01), Winslow
patent: 2620505 (1952-12-01), Rappl
patent: 3307486 (1967-03-01), Lindberg
patent: 3324801 (1967-06-01), Fernholtz
patent: 4443165 (1984-04-01), Chanton

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