Steven J Metz

US Patent:

7310436, Dec 18, 2007

Filed:

Jun 1, 2004

Appl. No.:

10/859423

Inventors:

Baojun Li - Waukesha WI, US
Steven W. Metz - Greenfield WI, US
John Michael Sabol - Sussex WI, US
Gopal B. Avinash - New Berlin WI, US
Jiang Hsieh - Brookfield WI, US

Assignee:

General Electric Co. - Schenectady NY

International Classification:

G06K 9/00

US Classification:

382131, 382285, 378 46

Abstract:

Systems, methods and apparatus are provided through which in one aspect, a three-dimensional (3D) image of an object is constructed from a plurality of two-dimensional (2D) images of the object using a specialized filter. The specialized filter implements a linear ramp function, a windowing function, and/or a polynomial function. The 3D image is back-projected from the filtered two-dimensional images, yielding a 3D image that has improved visual distinction of overlapping anatomic structures and reduced blurring.

US Patent:

20200217424, Jul 9, 2020

Filed:

Dec 23, 2019

Appl. No.:

16/725238

Inventors:

- Verona WI, US
Steven J. Metz - Oshkosh WI, US

International Classification:

F16K 1/42
F04B 7/00
F04B 7/02
E21B 43/26

Abstract:

A valve seat for hydraulic fracturing valves employs a through-hardening process, for example, with austempering, to provide greater wear resistance at the interface between the valve seat and the valve plug as well as resistance to abrasion and leakage in the interface between an alignment ring of the valve seat and a bore in the pump body.