Robert A Haynes

US Patent:

6506340, Jan 14, 2003

Filed:

Jun 1, 1993

Appl. No.:

08/069867

Inventors:

Chi-Chun Tsai - Lawrenceville GA
Robert E Haynes - Lakewood CO

Assignee:

Cobe Cardiovascular, Inc. - Arvada CO

International Classification:

A61M 136

US Classification:

422 45, 422 44, 604 401, 604 614, 128DIG 3, 261DIG 28

Abstract:

A medical instrument and method is provided for defoaming or preventing formation of foam in blood during extracorporeal blood circulation. The method comprises durably coating hydrophobic blood-contact surfaces with a nontoxic, biocompatible surface-active defoaming agent.

US Patent:

20120305206, Dec 6, 2012

Filed:

Feb 11, 2011

Appl. No.:

13/578680

Inventors:

Robert Daniel Haynes - Tucker GA, US
Scott Barton Auger - Woodstock GA, US

Assignee:

AKZO NOBEL CHEMICALS INTERNATIONAL B.V. - Amersfoort

International Classification:

D21C 9/00
D21C 3/00

US Classification:

162 5

Abstract:

A method for removing ink from printed paper comprising: (a) pulping printed paper at least 25 wt % of which is old newsprint at a consistency of at least about 3% to obtain a pulp slurry; (b) treating the pulp slurry with an ink removing system, which system comprises: (i) a combination of lipase and at least one second enzyme chosen from amylase, xylanase or cellulase, and (ii) a non-ionic surfactant, in amounts effective to release ink from said pulp slurry, wherein the lipase is present in an amount of at least about 0.001 wt % based on the dry content of the pulp slurry and the ratio of the at least one second enzyme:lipase is at least about 1.2:1; and (c) separating the released ink from the pulp slurry, wherein the treating step is carried out prior to a deinking flotation stage.