Receiving device for at least one shaft supported in sealing...

Details Receiving device for at least one shaft supported in sealing... Receiving device for at least one shaft supported in sealing...

2002-01-16

2003-02-25

Soohoo, Tony G. (Department: 1723)

Agitating

Stirrer within stationary mixing chamber

Rotatable stirrer

C277S370000

Reexamination Certificate

active

06523997

ABSTRACT:

BACKGROUND OF THE INVENTION
1. Field of the Invention
The invention relates to a receiving device for at least one shaft, supported sealingly in a housing.
2. Description of the Prior Art
In one known receiving device, the shaft, embodied as an extrusion worm, is surrounded directly by a seal, which seals off the shaft from the housing wall of an extruder. As a consequence, when the shaft is removed and installed, for example if the housing interior has to be cleaned, damage or harm to the seal can occur because of the direct contact with the shaft. The object of the invention is therefore to avert such damage or harm upon removal or installation of a shaft from or into a housing.
SUMMARY OF THE INVENTION
The receiving device of the invention for at least one shaft supported sealingly in a housing has the advantage over the prior art that the shaft is separated from the seal by a protective element, so that there is no direct contact between the shaft and the seal. As a result, damage or harm to the seal upon removal or installation of the shaft is effectively averted.


REFERENCES:
patent: 1861081 (1932-05-01), Foresman
patent: 3804423 (1974-04-01), Booy
patent: 4521026 (1985-06-01), Eide
patent: 4878677 (1989-11-01), Larkins et al.
patent: 6164811 (2000-12-01), Planeta et al.
patent: 6270247 (2001-08-01), Tschopp
patent: 6390666 (2002-05-01), Schafer et al.
patent: 1 035 585 (1958-08-01), None

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