Marvin D Dansie
Engineers in Auburn, WA
License number
Utah 170506-2202
Issued Date
Mar 20, 1986
Expiration Date
Dec 31, 2002
Category
Engineer/Land Surveyor
Type
Professional Engineer
Address
Address
Auburn, WA
Professional information
High-Pressure Ball Valve
US Patent:
4934656, Jun 19, 1990
Filed:
Jun 8, 1989
Appl. No.:
7/363093
Inventors:
Oliver J. Groves - Seattle WA
Marvin D. Dansie - Federal Way WA
Marvin D. Dansie - Federal Way WA
Assignee:
The Boeing Company - Seattle WA
International Classification:
F16K 506
US Classification:
251315
Abstract:
A ball valve capable of sealing fluids under high pressure is disclosed. The ball valve includes a valve body having a first internal shoulder and a second internal shoulder. A support ring abuts against the first internal shoulder. A sealing ring having an annular recess extending radially abuts against the support ring. A comb disk spring is positioned within the annular recess, the comb disk spring having an apex biased towards the ball. A fitting having a smooth annular support surface extends into the valve body. Sealing rings, such as a backup ring and an O-ring are placed over the smooth support surface and abut against the shoulder of the fitting. A compression ring is placed over the end of the fitting, abutting against the sealing rings. When the fitting is placed within the valve body, the compression ring abuts against the second shoulder of the valve body. Threading of the fitting 20 into the valve body causes the sealing rings to be compressed between the compression ring and the shoulder of the fitting.