Eugene D Berthiaume, 7114 Mayflower Dr, Valley Falls, RI 02864
Eugene Berthiaume Phones & Addresses
14 Mayflower Dr, Cumberland, RI 02864
Mentions for Eugene D Berthiaume
Publications & IP owners
Us Patents
Back Pressure Regulation
US Patent:
2015002, Jan 29, 2015
Filed:
Mar 4, 2013
Appl. No.:
14/382602
Inventors:
- Milford MA, US
John M. Auclair - Seekonk MA, US
Paul Keenan - Harrisville RI, US
Edwin Denecke - North Attleboro MA, US
Gerald Wisser - Gibsonia PA, US
Edward Bates - Natrona Heights PA, US
Eugene Berthiaume - Cumberland RI, US
Michael Bower - Hopkinton MA, US
John M. Auclair - Seekonk MA, US
Paul Keenan - Harrisville RI, US
Edwin Denecke - North Attleboro MA, US
Gerald Wisser - Gibsonia PA, US
Edward Bates - Natrona Heights PA, US
Eugene Berthiaume - Cumberland RI, US
Michael Bower - Hopkinton MA, US
Assignee:
Waters Technologies Corporation - Milford MA
International Classification:
F16K 1/52
F16K 15/06
F16K 25/04
F16K 15/06
F16K 25/04
US Classification:
137528
Abstract:
The invention generally provides a dynamic back pressure regulator. In exemplary embodiments, the back pressure regulator includes an inlet, an outlet, a seat disposed between the inlet and the outlet and defining at least part of a fluid pathway, and a needle displaceable relative to the seat to form a restriction region therebetween for restricting fluid flow between the inlet and the outlet. In some embodiments, the needle can be formed of a chemically resistant ceramic or have a metal plating to provide corrosion and/or erosion resistance.
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