Gerard J Demott

US Patent:

6453703, Sep 24, 2002

Filed:

Dec 20, 2000

Appl. No.:

09/745163

Inventors:

Walter A. Johnson - Aurora CO
Doug Ferreira - Artois CA
Gerard J. DeMott - Evergreen CO
Yifang Cal - Littleton CO

Assignee:

Johns Manville International, Inc. - Denver CO

International Classification:

C03B 3704

US Classification:

65459, 65460, 65461, 65516, 65522, 65523, 65521, 425 8

Abstract:

A spinner disc for a rotary fiberization process, includes a base plate and an annular peripheral sidewall extending upward from the base plate which has a plurality of rows of fiberizing holes therein for fiberizing molten thermoplastic fiberizable materials by centrifugal force. The base plate has: a central bore therein on a rotational axis of the spinner disc for mounting the spinner disc on a drive shaft; an outer annular portion for receiving molten thermoplastic fiberizable materials to be fiberized; and an inner annular portion intermediate the central bore and, the outer annular base plate portion. A plurality of slits in the inner annular portion of the base plate, passing completely through the base plate from an upper surface of the base plate to a lower surface of the base plate and radiating outward from a periphery of the central bore, relieve stresses in the base plate, especially during a start-up of a fiberizing process, and permit hot gases to pass out from within the spinner disc during a fiberizing operation to heat the underside of the spinner disc.

US Patent:

7607240, Oct 27, 2009

Filed:

May 23, 2007

Appl. No.:

11/805374

Inventors:

Daniel Pinkham, Jr. - Highlands Ranch CO, US
Gerard Joseph Demott - Evergreen CO, US
Gary Groner - Littleton CO, US

Assignee:

Johns Manville - Denver CO

International Classification:

F26B 11/00

US Classification:

34397, 34392, 34413, 432 58, 210771, 219400

Abstract:

A system and method of drying wet items including roving packages, cakes and bobbins of wound wet glass fibers and/or wet glass fiber strand(s) by first preheating the wet items using waste hot gases coming from any source including a glass furnace, a dryer or a heat engine operating to generate electrical power prior to removing much, most or all of the moisture in the wet roving packages, cakes and bobbins using a dielectric or microwave oven, to save energy, reduce drying costs and to increase the capacity of dielectric or microwave dryers.

US Patent:

7803248, Sep 28, 2010

Filed:

May 23, 2007

Appl. No.:

11/805375

Inventors:

Daniel Pinkham, Jr. - Highlands Ranch CO, US
Gerard Joseph Demott - Evergreen CO, US
Gary Groner - Littleton CO, US

Assignee:

Johns Manville - Denver CO

International Classification:

D21F 5/20
D21F 5/18
D21H 21/18
F26B 3/06
F26B 21/14

US Classification:

162156, 162201, 162207, 34 86, 34 90, 34452

Abstract:

The invention includes a method and system for generating electricity using a drive for the electrical generator that is powered by an engine that uses high pressure hot gases produced by combustion of a fuel and an oxygen bearing gas, using at least a portion of the electricity generated to power manufacturing plant equipment and using the waste hot exhaust gases from the heat engine, such as a gas turbine, with or without a heat exchanger, in an oven in which the mat is carried through continuously on a belt, drum or with other conventional means to dry the wet fibrous mats. Optionally the fibrous mats can contain a binder and the hot waste gases can be optionally used to cure a binder.

US Patent:

20080289364, Nov 27, 2008

Filed:

May 23, 2007

Appl. No.:

11/805373

Inventors:

Daniel Pinkham, JR. - Highlands Ranch CO, US
Gerard Joseph Demott - Evergreen CO, US
Gary Groner - Littleton CO, US

International Classification:

C03B 3/00

US Classification:

65 2916, 65181

Abstract:

The invention includes a method and system for heating one or more ingredients of a glass batch or the entire glass batch that is then used to make molten glass using waste hot gases from a system for generating electricity using a drive for an electrical generator that is powered by a heat engine that exhaust waste hot gases having a temperature of at least about 200 degrees C. At least a portion of the electricity generated can be used to power manufacturing plant equipment and the waste hot exhaust gases exhausted by the heat engine, such as a gas turbine, is used in a static or dynamic heat exchanger to heat the entire glass batch or one or more of the ingredients of the glass batch, prior to feeding the glass batch into a glass melting furnace.

US Patent:

6441122, Aug 27, 2002

Filed:

Jan 5, 1995

Appl. No.:

08/369202

Inventors:

Gerard J. DeMott - Evergreen CO
Thomas John Taylor - Englewood CO
Glenn S. Aspholm - Littleton CO

Assignee:

Johns Manville International, Inc. - Denver CO

International Classification:

C08G 1402

US Classification:

528137, 528129, 528230, 524596, 524598, 524818, 524841

Abstract:

Urea-extended phenol/formaldehyde alkaline resole binders suitable for fiberglass and having a high binding efficiency are disclosed. These binders are prepared by adding a minor quantity of melamine in an amount such that the binder solution contains no solid melamine particulates at room temperature. The resulting binders, when applied to fiberglass and cured, have a binding efficiency close to 100%, and further increase the recovery and physical properties of the binder-containing fiberglass product.