Sealing construction

Details Sealing construction Sealing construction

2005-07-29

2009-06-09

Paschall, Mark H (Department: 3742)

Electric heating

Heating devices

With power supply and voltage or current regulation or...

C219S490000, C219S494000, C099S452000, C099S466000

Reexamination Certificate

active

07544917

ABSTRACT:
A curd preparation vat provided with a sealing construction for a shaft passing through a wall of the vat, which sealing construction has at least one receiving space and a sealing ring included therein in operation, surrounding the shaft, wherein the sealing ring has an annular body which is provided with a sealing lip which cooperates with a radially extending surface of the sealing construction, and wherein the annular body furthermore has an axially inner surface abutting against first positioning means of the sealing construction, wherein the sealing lip of the at least one sealing ring extends both radially and axially obliquely outwards from a both radially and axially outer edge area of the annular body, and wherein between the sealing lip and the inner surface of the annular body that abuts against the shaft, an axially outer surface of the annular body is situated, which cooperates directly with second positioning means, which leave the lip clear, for fixing the at least one sealing ring between the first and the second positioning means.

REFERENCES:
patent: 3038733 (1962-06-01), Hudson et al.
patent: 3599993 (1971-08-01), Eriksson
patent: 3934311 (1976-01-01), Thompson
patent: 4071255 (1978-01-01), Salter, Jr.
patent: 4136886 (1979-01-01), Sjoholm et al.
patent: 4974860 (1990-12-01), Anzue et al.
patent: 4989504 (1991-02-01), Jay
patent: 6539845 (2003-04-01), Sipma et al.
patent: 37 00 839 (1988-07-01), None
patent: 0 408 532 (1991-01-01), None
patent: 1 025 999 (1966-04-01), None
International Search Report dated Nov. 11, 2005.

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