LYMAN J PETROSKY
Engineers in Latrobe, PA
License number
Pennsylvania PE031701E
Category
Engineers
Type
Professional Engineer
Address
Address
Latrobe, PA 15650
Professional information
Miniature Manipulator For Servicing The Interior Of Nuclear Steam Generator Tubes
US Patent:
7314343, Jan 1, 2008
Filed:
Jul 15, 2003
Appl. No.:
10/620013
Inventors:
Phillip J. Hawkins - Irwin PA, US
Lyman J. Petrosky - Latrobe PA, US
Lyman J. Petrosky - Latrobe PA, US
Assignee:
Westinghouse Electric Co. LLC - Pittsburgh PA
International Classification:
F22B 37/00
US Classification:
4147494, 165 112, 165DIG 3, 294 94, 180 85, 901 1
Abstract:
A manipulator for servicing tubes extending through a tube sheet having three major components: a base member, a block member, and a foot member. The base member has a holder for supporting tooling or inspection devices. The base member also has at least one gripper for releasably gripping a tube extending through the tube sheet. The block member is connected to the base member for linear movement and rotation relative to the base member. The foot member is connected to the block member for linear movement relative to the block member. The foot member has at least one, and preferably two grippers, for releasably gripping a tube extending through the tube sheet. The manipulator supports itself using the two sets of expandable and translatable grippers that anchor into the tube ends and can move from tube to tube by alternately engaging each set of grippers.
Eddy Current Inspection Probe
US Patent:
2013033, Dec 19, 2013
Filed:
Mar 12, 2013
Appl. No.:
13/795109
Inventors:
WESTINGHOUSE ELECTRIC COMPANY LLC - , US
Lyman J. Petrosky - Latrobe PA, US
Lyman J. Petrosky - Latrobe PA, US
Assignee:
WESTINGHOUSE ELECTRIC COMPANY LLC - Cranberry Township PA
International Classification:
G01R 1/067
US Classification:
32475501
Abstract:
A probe for transporting a nondestructive inspection sensor through a tube, that employs wheels to reduce friction. The radial travel of the wheels are mechanically linked through a cam and axially reciprocal plunger arrangement that centers the probe at tube diameter transitions. Internal wire bending is minimized and a dynamic seal is provided to facilitate an insertion force at the probe and reduce or eliminate compressive load buckling of the flexible cable carried by the probe. Like the wheel arrangement, radial travel of the seal segments are mechanically linked to provide probe centering.
Tubesheet Gripping Mechanism And Method
US Patent:
2013029, Nov 14, 2013
Filed:
Mar 5, 2013
Appl. No.:
13/785340
Inventors:
Westinghouse Electric Company LLC - , US
Lyman J. Petrosky - Latrobe PA, US
Lyman J. Petrosky - Latrobe PA, US
Assignee:
Westinghouse Electric Company LLC - Cranberry Township PA
International Classification:
F16M 13/02
US Classification:
248689
Abstract:
A tubesheet anchor for suspending a tool from the underside of a heat exchanger tubesheet that inserts one end of two fingers into corresponding openings in the tubesheet and leverages one finger off the other to apply a frictional force to the sides of the tubesheet openings in which the fingers are inserted to clamp the fingers to the tubesheet.
Tetherless Tube Inspection System
US Patent:
2011012, May 26, 2011
Filed:
May 14, 2010
Appl. No.:
12/779967
Inventors:
Lyman J. Petrosky - Latrobe PA, US
Jayne L. Boynton - New Stanton PA, US
Keith B. Lloyd - Ruffsdale PA, US
Jayne L. Boynton - New Stanton PA, US
Keith B. Lloyd - Ruffsdale PA, US
Assignee:
Westinghouse Electric Company LLC - Monroeville PA
International Classification:
G06F 15/00, G01D 21/00
US Classification:
702188, 738658, 702127, 901 46
Abstract:
Apparatus and a method to inspect tubing by means of a free flying, autonomous inspection head that is not attached by wires to external control and data acquisition equipment. The inspection head travels through the tube with an attached module that integrates all the necessary support for the electronic and mechanical control of a nondestructive sensor within the inspection head.
Eddy Current Inspection Probe For Inspecting The Interior Of A Tubular Member
US Patent:
8390278, Mar 5, 2013
Filed:
Oct 20, 2009
Appl. No.:
12/582196
Inventors:
Lyman J. Petrosky - Latrobe PA, US
Assignee:
Westinghouse Electric Company LLC - Cranberry Township PA
International Classification:
G01N 27/72
US Classification:
324220, 324221, 324228, 73638, 738658
Abstract:
An eddy current probe for inspecting steam generator tubing, that has radially outwardly biased rollers that function to center the probe within the tubing and reduce friction as the probe moves along the interior of the steam generator heat exchanger tube walls. The rollers may include a braking system which controls the drag on the rollers and thus the speed of the probe along the tubing. The direction of travel of the rollers is remotely adjustable to control the inspection pattern and the force of the rollers against the interior surface of the tubing can be remotely controlled.