Richard A Altman

US Patent:

20120037568, Feb 16, 2012

Filed:

Aug 8, 2011

Appl. No.:

13/204849

Inventors:

Stanley R. Karrs - Gibsonia PA, US
Richard A. Altman - Kingwood TX, US

Assignee:

SIEMENS INDUSTRY, INC. - Alpharetta GA

International Classification:

C02F 1/52
C02F 5/06
C02F 5/00
C02F 101/20

US Classification:

210709, 210 961

Abstract:

Disclosed herein is a controlled method of minimizing radioactive sludge generation in treatment of wastewater from an oil and/or gas well. The method comprises measuring a concentration of a radioactive material in wastewater to be treated and measuring a concentration of barium in the wastewater to be treated. The method further comprises adding a calculated quantity of sulfate to the wastewater to be treated sufficient to precipitate a quantity of barium sufficient to reduce the concentration of the radioactive material to a level such that sludge precipitated in a secondary precipitation has a radiation level below a defined radiation level.

US Patent:

48964069, Jan 30, 1990

Filed:

Mar 27, 1989

Appl. No.:

7/328782

Inventors:

Jon Weingarten - Weston CT
Richard M. Altman - Weston CT
Maura T. Buckley - Hoboken NJ
Kim L. Leipham - New York NY

Assignee:

Burlington Industries, Inc. - Greensboro NC

International Classification:

D02G 300
D01H 528

US Classification:

28166

Abstract:

A top bedsheet, bottom (fitted contour) bedsheet, or pillow case is produced by circularly knitting, in a jersey knit configuration, a sheath and core yarn into a fabric. The sheath fibers comprise short staple fibers such as cotton or comparable cellulosic fibers, and provide at least 50 percent of the yarn and preferably about 68-83 percent of the yarn. The core fibers are long staple synthetic fibers such as polyester, and are completely covered by the cotton so that the product has smoothness of hand. The fabric has a weight of approximately four ounces per square yard, and is finished so that it has a relaxed shrinkage of about five percent in both the length and width dimensions. The sheath and core yarn configuration is produced by passing a sliver of sheath fibers and a roving of core fibers through a trumpet, and then through the rear rolls, apron, and front rolls of a drafting apparatus to produce a drafted composite sliver, and then mechanically imparting a twist to the drafted composite sliver.