Brian C Jensen

US Patent:

7186367, Mar 6, 2007

Filed:

Apr 19, 2005

Appl. No.:

11/110996

Inventors:

Tan-Hung Hou - Poquoson VA, US
Brian J. Jensen - Williamsburg VA, US

Assignee:

The United States of America as represented by the Administrator of the National Aeronautics and Space Administration - Washington DC

International Classification:

B29C 51/10
B29C 51/42

US Classification:

264571, 264511, 264553

Abstract:

A double vacuum bag molding assembly with improved void management and laminate net shape control which provides a double vacuum environment for use in fabricating composites from prepregs containing air and/or volatiles such as reactive resin matrix composites or composites from solvent containing prepregs with non-reactive resins matrices. By using two vacuum environments during the curing process, a vacuum can be drawn during a B-stage of a two-step cycle without placing the composite under significant relative pressure. During the final cure stage, a significant pressure can be applied by releasing the vacuum in one of the two environments. Inner and outer bags are useful for creating the two vacuum environments with a perforated tool intermediate the two. The composite is placed intermediate a tool plate and a caul plate in the first environment with the inner bag and tool plate defining the first environment. The second environment is characterized by the outer bag which is placed over the inner bag and the tool plate.

US Patent:

7851062, Dec 14, 2010

Filed:

May 21, 2008

Appl. No.:

12/124273

Inventors:

Stephen J. Hales - Newport News VA, US
Joel A. Alexa - Hampton VA, US
Brian J. Jensen - Williamsburg VA, US
Roberto J. Cano - Yorktown VA, US
Erik S. Weiser - Yorktown VA, US

Assignee:

The United States of America as represented by the Administrator of the National Aeronautics and Space Administration - Washington DC

International Classification:

B32B 15/00

US Classification:

428379, 428381, 4283011, 42831111

Abstract:

A metal/fiber laminate has a plurality of adjacent layers. Each layer is porous and includes an arrangement of fibers. At least one of the layers has its fibers coated with a metal. A polymer matrix permeates each such arrangement.

US Patent:

8017190, Sep 13, 2011

Filed:

Oct 18, 2010

Appl. No.:

12/906633

Inventors:

Stephen J. Hales - Newport News VA, US
Joel A. Alexa - Hampton VA, US
Brian J. Jensen - Williamsburg VA, US
Roberto J. Cano - Yorktown VA, US
Erik S. Weiser - Yorktown VA, US

Assignee:

United States of America as represented by the Administrator of the National Aeronautics and Space Administration - Washington DC

International Classification:

B05D 3/00

US Classification:

4273881, 427455, 427456, 4273898, 4273935, 427404, 4274071, 4274073, 427412, 4274121, 427427, 4274272

Abstract:

A metal/fiber laminate has a plurality of adjacent layers. Each layer is porous and includes an arrangement of fibers. At least one of the layers has its fibers coated with a metal. A polymer matrix permeates each such arrangement.

US Patent:

54262348, Jun 20, 1995

Filed:

May 16, 1994

Appl. No.:

8/245171

Inventors:

Robert G. Bryant - Poquoson VA
Brian J. Jensen - Williamsburg VA
Paul M. Hergenrother - Yorktown VA

Assignee:

The United States of America as represented by the Administrator of the
National Aeronautics and Space Administration - Washington DC

International Classification:

C07C 4976

US Classification:

568333

Abstract:

A composition of matter having the general structure: ##STR1## (wherein X is F, Cl, or NO. sub. 2, and Y is CO, SO. sub. 2 or C(CF. sub. 3). sub. 2) is employed to terminate a nucleophilic reagent, resulting in the exclusive production of phenylethynyl terminated reactive oligomers which display unique thermal characteristics. A reactive diluent having the general structure: ##STR2## (wherein R is any aliphatic or aromatic moiety) is employed to decrease the melt viscosity of a phenylethynyl terminated reactive oligomer and to subsequently react therewith to provide a thermosetting material of enhanced density. These materials have features which make them attractive candidates for use as composite matrices and adhesives.

US Patent:

41606507, Jul 10, 1979

Filed:

Apr 20, 1978

Appl. No.:

5/898201

Inventors:

Brian J. Jensen - Franksville WI

Assignee:

NFE International, Ltd. - Palatine IL

International Classification:

B24B 3100
B24C 310

US Classification:

51 16

Abstract:

A core cleaning material delivery unit for use in removing fins from foundry sand cores, including counter-rotating rollers rotatably engaging and defining a contact surface junction, means for feeding core cleaning material, such as metal shot or metal grit, above the junction, and means for rotating the rollers in opposite rotational directions away from the top of the contact surface junction to transport the shot or grit upwardly over each roller and deposit it as a double curtain of falling core cleaning material onto the sand cores. A core cleaning system utilizing the aforementioned core cleaning material delivery unit mounted to a frame and vertically adjustable with respect to a core conveyor to adjust the height of the falling curtains of core cleaning material onto the sand cores, and separator and loading means for separating the core cleaning material from loosened sand resulting from removal of the fins and for directing the core cleaning material to the contact surface junction at the top of the rollers.

US Patent:

53129946, May 17, 1994

Filed:

Apr 2, 1993

Appl. No.:

8/045343

Inventors:

Robert G. Bryant - Poquoson VA
Brian J. Jensen - Williamsburg VA
Paul M. Hergenrother - Yorktown VA

Assignee:

The United States of America as represented by the Administrator of the
National Aeronautics and Space Administration - Washington DC

International Classification:

C07C20506
C07C31714
C07C 49794
C07C 2208

US Classification:

568306

Abstract:

A composition of matter having the general structure: ##STR1## (wherein X is F, Cl, or NO. sub. 2, and Y is CO, SO. sub. 2 or C(CF. sub. 3). sub. 2) is employed to terminate a nucleophilic reagent, resulting in the exclusive production of phenylethynyl terminated reactive oligomers which display unique thermal characteristics. A reactive diluent having the general structure: ##STR2## (wherein R is any aliphatic or aromatic moiety) is employed to decrease the melt viscosity of a phenylethynyl terminated reactive oligomer and to subsequently react therewith to provide a thermosetting material of enhanced density. These materials have features which make them attractive candidates for use as composite matrices and adhesives.

US Patent:

54462045, Aug 29, 1995

Filed:

May 16, 1994

Appl. No.:

8/245776

Inventors:

Robert G. Bryant - Poquoson VA
Brian J. Jensen - Williamsburg VA
Paul M. Hergenrother - Yorktown VA

Assignee:

The United States of America as represented by the Administrator of the
National Aeronautics and Space Administration - Washington DC

International Classification:

C07C 49825

US Classification:

568333

Abstract:

A composition of matter having the general structure: ##STR1## (wherein X is F, Cl, or NO. sub. 2, and Y is CO, SO. sub. 2 or C(CF. sub. 3). sub. 2) is employed to terminate a nucleophilic reagent, resulting in the exclusive production of phenylethynyl terminated reactive oligomers which display unique thermal characteristics. A reactive diluent having the general structure: ##STR2## (wherein R is any aliphatic or aromatic moiety) is employed to decrease the melt viscosity of a phenylethynyl terminated reactive oligomer and to subsequently react therewith to provide a thermosetting material of enhanced density. These materials have features which make them attractive candidates for use as composite matrices and adhesives.

US Patent:

20220214171, Jul 7, 2022

Filed:

Apr 3, 2020

Appl. No.:

17/601041

Inventors:

- Meer, BE
- Wilsonville OR, US
Mark Rivers - Winchester, GB
Brian L. Jensen - Madison WI, US
Marcel Tremblay - Goleta CA, US
Christopher D. Gatland - Fareham, GB

International Classification:

G01C 21/20
B60L 50/60
B60L 58/12
B63B 79/40
B63B 49/00

Abstract:

Techniques are disclosed for systems and methods to provide passage planning for a mobile structure. A passage planning system includes a logic device configured to communicate with a user interface associated with the mobile structure and at least one operational state sensor mounted to or within the mobile structure. The logic device determines an operational range map based, at least in part, on an operational state of the mobile structure, potential navigational hazards, and/or environmental conditions associated with the mobile structure. Such operational range map and other control signals may be displayed to a user and/or used to generate a planned route and/or adjust a steering actuator, a propulsion system thrust, and/or other operational systems of the mobile structure.

Author:

Brian Jensen

ISBN #:

0696200015

Author:

Brian Jensen

ISBN #:

0878332650

Author:

Brian Moller Jensen

ISBN #:

0773458549

Author:

Brian Moller Jensen

ISBN #:

0773470735