Seal for frozen confection freezer

Details Seal for frozen confection freezer Seal for frozen confection freezer

1978-08-28

1979-10-23

Ward, Jr., Robert S.

Seal for a joint or juncture

Seal between relatively movable parts

Relatively rotatable radially extending sealing face member

277 92, 277 93R, 277170, 277212C, 62342, 366320, F16J 1536

Patent

active

041718194

ABSTRACT:
The freezing chamber of a frozen or semi-frozen confection freezer has a mixing rotor having a shaft which extends through an opening in a wall. The seal between the shaft and wall comprises an elastomeric cup having a rim engaged with the wall about said opening. The cup has a hub engaged with the shaft and a yieldable skirt between the hub and the rim. The hub has a socket which receives a metal ring with an oblique wear surface. An O-ring is engaged between a fillet on the shaft and the oblique wear surface on the ring whereby the cup is self-centering with respect to the shaft, notwithstanding any tendency of the shaft to nutate.

REFERENCES:
patent: 1931733 (1933-10-01), Leibing
patent: 2710206 (1955-06-01), Huber
patent: 2746730 (1956-05-01), Swenson et al.
patent: 2924952 (1960-02-01), Swenson et al.
patent: 3388914 (1968-06-01), Dahlgren et al.
patent: 3655205 (1972-04-01), Petersen
patent: 3905607 (1975-09-01), Maguire et al.

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