Joint seal on the rotor drive of an eccentric screw machine

Details Joint seal on the rotor drive of an eccentric screw machine Joint seal on the rotor drive of an eccentric screw machine

1979-08-17

1981-12-15

Smith, Robert I.

Seal for a joint or juncture

Seal between relatively movable parts

Relatively rotatable radially extending sealing face member

64 7, 67 9R, F16D 376

Patent

active

043055966

ABSTRACT:
Improved joint seal for the rotor drive of an eccentric screw machine comprises a sealing cuff of elastomeric or thermoplastic material with a radially exterior rim bead connected to the outer joint sleeve by means of an exterior supporting ring, and a radially interior rim bead with a generally axis-parallel ring apron radially outward thereof. An interior supporting ring with an axis-parallel annular limb connects the radially interior rim bead of the cuff to a coupling rod of the joint with the annular limb of the interior supporting ring clasped between the radially interior rim bead and the ring apron disposed outwardly thereof on the sealing cuff. The radially exterior rim bead may be connected to the joint sleeve by means of an exterior suporting ring similar to the interior supporting ring.

REFERENCES:
patent: 3427825 (1969-02-01), John et al.
patent: 3638453 (1972-02-01), Ehret
patent: 3901518 (1975-08-01), Uchida
patent: 4220418 (1980-09-01), Kondo et al.
patent: 4229952 (1980-10-01), Aucktor

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