Spool seat with a positioning structure

Details Spool seat with a positioning structure Spool seat with a positioning structure

2008-04-28

2011-12-20

Rivell, John (Department: 3753)

Fluid handling

Systems

Multi-way valve unit

C251S363000

Reexamination Certificate

active

08079384

ABSTRACT:
The present invention provides a spool seat with a positioning structure, which resolves the shortcomings of the assembly of a typical spool ceramic disc and spool seat. The spool seat of the present invention is provided with a chamber space for locating the fixed ceramic disc. The chamber space is provided with an internal locating portion which comprises an internal locating flange and external locating flange. An external locating portion is protruded from the chamber space. The chamber space is divided into inlet space and outlet space via the arrangement of internal locating portion. It is possible to eliminate the space restrictions for the fixed ceramic disc, and also prevent the rotation and slide or displacement when the fixed ceramic disc is assembled into the chamber space of the spool seat.

REFERENCES:
patent: 4793375 (1988-12-01), Marty
patent: 5402827 (1995-04-01), Gonzalez
patent: 5853023 (1998-12-01), Orlandi et al.
patent: 6202693 (2001-03-01), Bollo
patent: 6892761 (2005-05-01), Chen
patent: 7373950 (2008-05-01), Huang
patent: 7850088 (2010-12-01), Wei et al.

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