Valve seating system

Details Valve seating system Valve seating system

2005-02-08

2005-02-08

Look, Edward K. (Department: 3754)

Valves and valve actuation

Valve

Seats

C137S015170, C137S315270

Reexamination Certificate

active

06851659

ABSTRACT:
The present invention relates to a closure device, in particular for closing ducts in a valve-accommodating member in which pressure medium is conveyed, comprising a rotationally symmetric closure member that is wedged in an accommodating bore of a housing. The calked joint is configured as a calking cone so that the accommodating bore forms a funnel-shaped contraction in the direction of the closure member, said contraction covering the periphery of the closure member in the area of a collar, and succeeding the calking cone is a second housing step that is expanded in relation to the first housing step, said step being formed by the housing material deforming plastically to the funnel-shaped contraction of the accommodating bore.

REFERENCES:
patent: 5333836 (1994-08-01), Fukuyo et al.
patent: 6084493 (2000-07-01), Siegel
patent: 6637724 (2003-10-01), Mayer
patent: 6644623 (2003-11-01), Voss et al.
patent: 4221988 (1994-01-01), None
patent: 4306220 (1994-09-01), None
patent: 19922334 (2000-09-01), None
patent: 19948425 (2000-11-01), None
patent: 19936711 (2001-01-01), None
patent: 19951665 (2001-05-01), None

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