Patrick J Thrash

US Patent:

6840750, Jan 11, 2005

Filed:

Jun 11, 2001

Appl. No.:

09/878825

Inventors:

Patrick J. Thrash - Huntington Beach CA, US
Roger Alan Burgess - Long Beach CA, US
Alan M. Markus - Lake Forest CA, US

Assignee:

The Boeing Company - Seattle WA

International Classification:

B29C 7044
B29C 7048

US Classification:

4251291, 425389, 425390, 4254051

Abstract:

A resin infusion mold tool system for use in a vacuum assisted resin transfer molding process with a subsequent pressure bleed step. The mold tool system includes a mold assembly having an outer mold line tool connected to resin supply lines and supplying resin to the preform. A plurality of inner mold line tools form a hard interface with the inner mold line of the fiber preform and are held to within tight tolerances by an external locating fixture. Excess resin is drawn out of the fiber preform using a vacuum bag connected to vacuum lines and disposed over the inner mold line tools but not between the tools and the fiber preform. The mold assembly is placed in an autoclave, the resin supply lines are detached and the autoclave pressurized to bleed additional resin out of the preform to raise the fiber volume of the composite structure.

US Patent:

6896841, May 24, 2005

Filed:

Mar 20, 2003

Appl. No.:

10/393195

Inventors:

Alexander Velicki - Garden Grove CA, US
Patrick Joseph Thrash - Corona CA, US
Roger Alan Burgess - Long Beach CA, US
Cole Standish - Long Beach CA, US

Assignee:

The Boeing Company - Chicago IL

International Classification:

B29C070/44

US Classification:

264510, 264102, 264257, 264258, 264314, 264324, 264511, 264571

Abstract:

A method of forming a unitary, composite structural member, and a member formed in accordance with the process. The process involves stitching a plurality of warp knit panel sections together to generally form a plurality of independent panel sections. The sections are placed within the dies of a molding tool such that a rib portion of each section aligns. Inflatable bladders are then slipped into voids formed in between the various panel sections of the assembly. The bladders are inflated to hold with one another. Resin is then infused into the panels that make up the assembly. The assembly is then cured. When the panels are removed from the molding tool a unitary, complexly shaped, composite structural member is formed.

US Patent:

7413695, Aug 19, 2008

Filed:

Jan 7, 2004

Appl. No.:

10/752831

Inventors:

Patrick J. Thrash - Huntington Beach CA, US
Roger Alan Burgess - Long Beach CA, US
Alan M. Markus - Lake Forest CA, US

Assignee:

The Boeing Company - Seattle WA

International Classification:

B29C 43/12
B29C 43/18
B29C 70/36
B29C 33/42

US Classification:

264257, 264316, 2643282, 264275, 4251291

Abstract:

A resin infusion mold tool system for use in a vacuum assisted resin transfer molding process with a subsequent pressure bleed step. The mold tool system includes a mold assembly having an outer mold line tool connected to resin supply lines and supplying resin to the preform. A plurality of inner mold line tools form a hard interface with the inner mold line of the fiber preform and are held to within tight tolerances by an external locating fixture. Excess resin is drawn out of the fiber preform using a vacuum bag connected to vacuum lines and disposed over the inner mold line tools but not between the tools and the fiber preform. The mold assembly is placed in an autoclave, the resin supply lines are detached and the autoclave pressurized to bleed additional resin out of the preform to raise the fiber volume of the composite structure.

US Patent:

8057721, Nov 15, 2011

Filed:

Feb 13, 2008

Appl. No.:

12/030580

Inventors:

Patrick J. Thrash - Huntington Beach CA, US
Roger Alan Burgess - Long Beach CA, US
Alan M. Markus - Lake Forest CA, US

Assignee:

The Boeing Company - Seattle WA

International Classification:

B29C 45/14

US Classification:

264257, 264101

Abstract:

A resin infusion mold tool system for use in a vacuum assisted resin transfer molding process with a subsequent pressure bleed step. The mold tool system includes a mold assembly having an outer mold line tool connected to resin supply lines and supplying resin to the preform. A plurality of inner mold line tools form a hard interface with the inner mold line of the fiber preform and are held to within tight tolerances by an external locating fixture. Excess resin is drawn out of the fiber preform using a vacuum bag connected to vacuum lines and disposed over the inner mold line tools but not between the tools and the fiber preform. The mold assembly is placed in an autoclave, the resin supply lines are detached and the autoclave pressurized to bleed additional resin out of the preform to raise the fiber volume of the composite structure.

US Patent:

8220588, Jul 17, 2012

Filed:

Mar 31, 2010

Appl. No.:

12/752079

Inventors:

Patrick J. Thrash - Corona CA, US
David Michael Miller - Chino Hills CA, US

Assignee:

The Boeing Company - Chicago IL

International Classification:

E04B 1/82

US Classification:

181292, 181290, 244 1 N, 415119

Abstract:

The different advantageous embodiments provide an inner barrel structure comprising an outer skin, an inner skin, a number of septa, and a truss core.

US Patent:

8361262, Jan 29, 2013

Filed:

Nov 8, 2007

Appl. No.:

11/937010

Inventors:

Thomas Karl Tsotsis - Orange CA, US
Patrick J. Thrash - Corona CA, US
Branko Sarh - Huntington Beach CA, US

Assignee:

The Boeing Company - Chicago IL

International Classification:

B29C 65/20
B29C 70/36

US Classification:

156179, 156181, 156182, 1563082

Abstract:

A method and apparatus for manufacturing. A fiber layer and a porous bonding layer are formed to form a unidirectional lay-up of fibers. The lay-up of fibers is heated under pressure to form a unidirectional composite tape of desired thickness to substantially maintain the fibers in a desired configuration. The unidirectional composite tape is slit to a desired width, and the slit unidirectional composite tape is loaded into a multiaxial fabric machine. A first layer is built from the composite tape in the multiaxial machine, and a second layer is built from the composite tape on the first layer at a predetermined angle from the first layer in the multiaxial machine. The first and second layers are consolidated to form a composite fabric in a continuous process.

US Patent:

8042767, Oct 25, 2011

Filed:

Sep 4, 2007

Appl. No.:

11/849794

Inventors:

Alexander Velicki - Garden Grove CA, US
Patrick J. Thrash - Corona CA, US

Assignee:

The Boeing Company - Chicago IL

International Classification:

B64C 1/06

US Classification:

244117R, 244131

Abstract:

A composite structure is provided including a first fabric and a second fabric. A substantially elongate and substantially rigid first member is spaced apart from and coupled with the first fabric via the second fabric. A resin substantially is infused into the first fabric and the second fabric, and substantially encapsulates the first member to form a unitary structure.

US Patent:

20050163965, Jul 28, 2005

Filed:

Mar 23, 2005

Appl. No.:

11/087884

Inventors:

Alexander Velicki - Garden Grove CA, US
Patrick Thrash - Corona CA, US
Roger Burgess - Long Beach CA, US
Cole Standish - Long Beach CA, US

International Classification:

B32B007/00

US Classification:

428119000

Abstract:

A method of forming a unitary, composite structural member, and a member formed in accordance with the process. The process involves stitching a plurality of warp knit panel sections together to generally form a plurality of independent panel sections. The sections are placed within the dies of a molding tool such that a rib portion of each section aligns. Inflatable bladders are then slipped into voids formed in between the various panel sections of the assembly. The bladders are inflated to hold the panel sections in the shape of the final product and to hold the rib portions in contact with one another. Resin is then infused into the panels that make up the assembly. The assembly is then cured. When the panels are removed from the molding tool a unitary, complexly shaped, composite structural member is formed.