Robert W Shaffer

US Patent:

20120291555, Nov 22, 2012

Filed:

May 16, 2011

Appl. No.:

13/108447

Inventors:

Dane Eugene Hackenberger - Mifflintown PA, US
Robert Charles Shaffer - Reedsville PA, US

Assignee:

GENERAL ELECTRIC COMPANY - Schenectady NY

International Classification:

G01N 29/26
G01R 3/00

US Classification:

73635, 29595

Abstract:

According to one aspect of the invention, a transducer apparatus is provided that includes a core section, a transducer disposed in the core section, the transducer configured to transmit or receive signals and a tubular member mounted to the core section for relative rotation, wherein a fluid is disposed in the tubular member. The apparatus further includes a weight reduction device disposed inside the tubular member to occupy a volume inside the tubular member, wherein the weight reduction device is configured to provide a transmission path from the transducer to the tubular member via the fluid.

US Patent:

20150068312, Mar 12, 2015

Filed:

Sep 11, 2013

Appl. No.:

14/024095

Inventors:

- Schenectady NY, US
Dane Eugene Hackenberger - Mifflintown PA, US
Robert Charles Shaffer - Reedsville PA, US

International Classification:

G01N 29/26

US Classification:

73638

Abstract:

A rolling ultrasonic scanner comprises a member having an inspection surface for rolling across the surface of an object under test. A plurality of ultrasonic transducers are disposed within the member in a formation such that they are each aimed at a common point that is coincident with the surface of the object.