George Thagard

US Patent:

57860858, Jul 28, 1998

Filed:

Oct 20, 1994

Appl. No.:

8/325131

Inventors:

Casey G. Tzeng - Irvine CA
George F. Thagard - Coto De Caza CA

Assignee:

Fontana Paper Mills, Inc. - Fontana CA

International Classification:

B32B 530
B32B 522
E04B 700
E04D 130

US Classification:

4284179

Abstract:

An asphaltic polyurethane foam useful in roofing applications. The foam is made from asphalt having a penetration range of between approximately 5-25, a softening point of between approximately 120. degree. F. and 200. degree. F. , and an asphaltene content of no more than about 30%. This asphalt is liquified and mixed with a mixture of polyols such as Voranol 270, Multranol 9138, and castor oil. Other chemicals, such as a surfactant, a viscosity reducer, and a flame retardant can also be included in this mixture. The mixture is then brought to a temperature of between approximately 140. degree. F. and 220. degree. F. , mixed with a polyisocyanate and water, and reacted to form an asphaltic polyurethane foam.

US Patent:

D4133960, Aug 31, 1999

Filed:

May 22, 1998

Appl. No.:

D/088454

Inventors:

George F. Thagard - Coto De Caza CA
Casey G. Tzeng - Irivne CA

Assignee:

Fontana Paper Mills, Inc. - Fontana CA

International Classification:

2501

US Classification:

D25140

US Patent:

40285278, Jun 7, 1977

Filed:

Dec 2, 1974

Appl. No.:

5/528732

Inventors:

George F. Thagard - Newport Beach CA

International Classification:

F24H 118
H05B 100

US Classification:

219311

Abstract:

An apparatus is disclosed for melting asphalt and for maintaining it in a molten condition without producing by-products harmful to the atmosphere. The asphalt is heated and maintained in a liquid state in an enclosed vessel by transferring heat from a heating means through inner wall portions of the vessel. Air polluting by-products are minimized due to the increased surface area heating the asphalt and the resulting reduced thermal gradient which prevents decomposition of the asphalt. A control system for selectively controlling the heating of the asphalt in a manner which reduces the production of air polluting products is also disclosed.

US Patent:

58131760, Sep 29, 1998

Filed:

Jun 7, 1995

Appl. No.:

8/486390

Inventors:

Casey G. Tzeng - Irvine CA
George F. Thagard - Coto De Caza CA

Assignee:

Fontana Paper Mills, Inc. - Fontana CA

International Classification:

E04B 700

US Classification:

52198

Abstract:

A ridge cap has an upper surface and a lower surface which is adapted to be placed in contact with a roof of a building. The ridge cap also includes a longitudinal axis having a front end and a back end, as well as two sides located axially distal of the longitudinal axis. A central channel along the longitudinal axis is located in the lower surface. A protuding member extends from a surface of the central channel. Another surface of the central channel includes a notch adapted to receive the protuding member. The protuding member and the notch are adapted to cooperate so as to at least substantially block the central channel when the ridge cap is bent and a distal end of the protruding member is made to enter into the notch.

US Patent:

D4220951, Mar 28, 2000

Filed:

May 22, 1998

Appl. No.:

D/088427

Inventors:

George F. Thagard - Coto De Caza CA
Casey G. Tzeng - Irvine CA

Assignee:

Fontana Paper Mills, Inc. - Fontana CA

International Classification:

2501

US Classification:

D25139

US Patent:

58160140, Oct 6, 1998

Filed:

Mar 10, 1997

Appl. No.:

8/815405

Inventors:

Casey G. Tzeng - Irvine CA
George F. Thagard - Coto De Caza CA

Assignee:

Fontana Paper Mills, Inc. - Fontana CA

International Classification:

E04D 122

US Classification:

5274519

Abstract:

An asphaltic isocyanurate foam useful in roofing applications. The foam is made from asphalt having a penetration range of between approximately 5-25, a softening point of between approximately 120. degree. F. and 200. degree. F. , and an asphaltene content of no more than about 30%. This asphalt is liquified and mixed with a mixture of polyols such as Voranol 270, Multranol 9138, and castor oil. Other chemicals, such as a surfactant, a viscosity reducer, and a flame retardant can also be included in this mixture. The mixture is then brought to a temperature of between approximately 140. degree. F. and 220. degree. F. , mixed with water and a polyisocyanate in a molar ratio of polyisocyanate:polyol of between about 2. 0:1 and about 2. 5:1 and reacted to form an asphaltic isocyanurate foam.

US Patent:

59656263, Oct 12, 1999

Filed:

Mar 10, 1997

Appl. No.:

8/815406

Inventors:

Casey G. Tzeng - Irvine CA
George F. Thagard - Coto De Caza CA

Assignee:

Fontana Paper Mills, Inc. - Fontana CA

International Classification:

C08G 1800

US Classification:

521101

Abstract:

An asphaltic isocyanurate foam useful in roofing applications. The foam is made from asphalt having a penetration range of between approximately 5-25, a softening point of between approximately 120. degree. F. and 200. degree. F. , and an asphaltene content of no more than about 30%. This asphalt is liquified and mixed with a mixture of polyols such as Voranol 270, Multranol 9138, and castor oil. Other chemicals, such as a surfactant, a viscosity reducer, and a flame retardant can also be included in this mixture. The mixture is then brought to a temperature of between approximately 140. degree. F. and 220. degree. F. , mixed with water and a polyisocyanate in a molar ratio of polyisocyanate:polyol of between about 2. 0:1 and about 2. 5:1 and reacted to form an asphaltic isocyanurate foam.

US Patent:

20050171223, Aug 4, 2005

Filed:

Feb 4, 2004

Appl. No.:

10/772049

Inventors:

George Thagard - Coto de Caza CA, US
Nicolae Achim - Grand Terrace CA, US

International Classification:

C08G018/00

US Classification:

521155000

Abstract:

An asphaltic isocyanurate foam useful in roofing applications. Asphalt is liquified and mixed with a mixture of polyisocyanate. In a separate mixture, other chemicals, such as polyols, surfactant, catalyst, and blowing agent are combined. The mixtures are combined and reacted to form an asphaltic polyurethane foam.