RICHARD ALAN ALLWES
Engineers in Pittsburgh, PA
License number
Pennsylvania PE061122
Category
Engineers
Type
Professional Engineer
Address
Address
Pittsburgh, PA 15241
Professional information
Structural Engineer At U.s. Army Corps Of Engineers
Position:
Structural Engineer at U.S. Army Corps of Engineers
Location:
Greater Pittsburgh Area
Industry:
Design
Work:
U.S. Army Corps of Engineers
-
Structural Engineer
Structural Engineer At Usace
Position:
Structural Engineer at USACE
Location:
Greater Pittsburgh Area
Industry:
Design
Work:
USACE
since Sep 1995
-
Structural Engineer
US Bureau of Mines
Jan 1980 - Sep 1995
-
Mining/Structural Engineer
Biaxial Pressure Sensor
US Patent:
4596151, Jun 24, 1986
Filed:
Jul 19, 1985
Appl. No.:
6/756535
Inventors:
Richard A. Allwes - Pittsburgh PA
Assignee:
The United States of America as represented by the Secretary of the
Interior - Washington DC
Interior - Washington DC
International Classification:
E21B 4900
US Classification:
73784
Abstract:
A pressure sensor (10) is useful for monitoring stress changes and stress fields in a medium (12) having a borehole (14) defined therein. The pressure sensor uses piston assemblies (22, 24, 26) to transmit pressure changes to gages (84) via a fluid in a fluid line (78). The piston assemblies can be spaced apart angularly and longitudinally of the borehole to monitor a plurality of locations (16, 18 and 20), and are angularly movable with respect to each other.