Annular port construction for valve applications

Fluid handling – Systems – Multi-way valve unit

Reexamination Certificate

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Details

C137S625480, C251S367000, C251S900000

Reexamination Certificate

active

11259440

ABSTRACT:
A body element for a spool valve is provided that includes a body having an inner surface that defines an internal valving chamber having a longitudinal axis, and at least one transverse surface to the longitudinal axis. The transverse surface has at least one port comprising an annular flow passage, an intermediate flow passage and an outer flow passage extending outward from and in fluid communication with the inner surface of the internal valving chamber.

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The Difference Between a “Gland” and a “Groove”, Internet Article from Rubber and Thermoplastic Products, Internet Design Guide: Sealing Factors Part 1, Minnesota Rubber and QMR Plastics, Copyright © Quadion Corporation (2 pp.).

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