Shaft seal

Details Shaft seal Shaft seal

1983-02-28

1985-02-12

Smith, Robert I.

Seal for a joint or juncture

Seal between relatively movable parts

Relatively rotatable radially extending sealing face member

277 36, F16J 1540

Patent

active

044986785

ABSTRACT:
In a sterilizing oven filtered air is circulated by a circulator situated within the oven and driven by an electric motor through a shaft, said motor being situated outside the oven. Since the air within the sterilizing oven must have a very low content of particles compared to common atmospheric air, it must not be possible for air to penetrate from the outside through the extension of the shaft. The shaft is therefore received in two spring-loaded gaskets in a sealing chamber which is supplied with filtered air at a low overpressure through a connection to a pump.

REFERENCES:
patent: 1956366 (1934-04-01), Vedovell
patent: 3083974 (1963-04-01), De Moude
patent: 3180134 (1965-04-01), Wadlington
patent: 3181873 (1965-05-01), Reed
patent: 4087097 (1978-05-01), Bossens et al.

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