ROBERT RAY KOOIMAN
Pilots at White Tail Xing, Edina, MN

License number
Minnesota A1045629
Category
Airmen
Type
Authorized Aircraft Instructor
Address
Address
10410 White Tail Xing, Edina, MN 55347

Professional information

Robert Kooiman Photo 1

Pressure Sensor With A Substantially Flat Overpressure Stop For The Measuring Diaphragm

US Patent:
4572000, Feb 25, 1986
Filed:
Dec 9, 1983
Appl. No.:
6/559894
Inventors:
Robert R. Kooiman - Eden Prairie MN
Assignee:
Rosemount Inc. - Eden Prairie MN
International Classification:
G01L 912
US Classification:
73718
Abstract:
A transducer for sensing pressure has a first and a second pressure chamber for sensing pressure and a center stop which has two substantially flat faces, each face cooperating with an associated sensor diaphragm which forms the first and the second pressure chamber. The two chambers are fluidically coupled together. Each of the diaphragms is responsive to a pressure P1 or P2 respectively and the transducer is easily configured to sense differential, gage or absolute pressure. When the pressure to be sensed exceeds a predetermined value the affected sensing diaphragm is supported by the respective substantial flat face of the center stop.