Lawrence Livermore National Laboratory
Mechanical Engineer
Garret Turbine Engines Jun 1990 - Jan 1992
Aerospace Engineer
Education:
University of Washington 1993 - 1998
Doctorates, Doctor of Philosophy, Philosophy, Mechanical Engineering
Arizona State University 1988 - 1990
Master of Science, Masters, Mechanical Engineering
University of California, Berkeley 1982 - 1984
Bachelors, Bachelor of Science, Mechanical Engineering
Skills:
Rotordynamics Ms Office Suite Finite Element Analysis Thermal Structural Dynamics Ansys Heat Transfer Fluid Dynamics Thermodynamics Fluid Mechanics Modal Analysis Numerical Simulation
John W. Pastrnak - Livermore CA, US Rocky Hollaway - Modesto CA, US Carl D. Henning - Livermore CA, US Steve Deteresa - Livermore CA, US Walter Grundler - Hayward CA, US Lisle B. Hagler - Berkeley CA, US Edwin Kokko - Dublin CA, US Vernon A Switzer - Livermore CA, US
Assignee:
Lawrence Livermore National Security, LLC - Livermore CA
International Classification:
F41H 5/14
US Classification:
89 3609, 86 50
Abstract:
A rapidly deployable portable convertible blast effects shield/ballistic shield includes a set two or more telescoping cylindrical rings operably connected to each other to convert between a telescopically-collapsed configuration for storage and transport, and a telescopically-extended upright configuration forming an expanded inner volume. In a first embodiment, the upright configuration provides blast effects shielding, such as against blast pressures, shrapnel, and/or fire balls. And in a second embodiment, the upright configuration provides ballistic shielding, such as against incoming weapons fire, shrapnel, etc. Each ring has a high-strength material construction, such as a composite fiber and matrix material, capable of substantially inhibiting blast effects and impinging projectiles from passing through the shield. And the set of rings are releasably securable to each other in the telescopically-extended upright configuration, such as by click locks.
John W. Pastrnak - Livermore CA, US Rocky Hollaway - Modesto CA, US Carl D. Henning - Livermore CA, US Steve Deteresa - Livermore CA, US Walter Grundler - Hayward CA, US Lisle B. Hagler - Berkeley CA, US Edwin Kokko - Dublin CA, US Vernon A. Switzer - Livermore CA, US
Assignee:
Lawrence Livermore National Security, LLC - Livermore CA
International Classification:
F42B 33/00
US Classification:
86 50, 89 3602
Abstract:
A rapidly deployable portable convertible blast effects shield/ballistic shield includes a set two or more frusto-conically-tapered telescoping rings operably connected to each other to convert between a telescopically-collapsed configuration for storage and transport, and a telescopically-extended upright configuration forming an expanded inner volume. In a first embodiment, the upright configuration provides blast effects shielding, such as against blast pressures, shrapnel, and/or fire balls. And in a second embodiment, the upright configuration provides ballistic shielding, such as against incoming weapons fire, shrapnel, etc. Each ring has a high-strength material construction, such as a composite fiber and matrix material, capable of substantially inhibiting blast effects and impinging projectiles from passing through the shield. And the set of rings are releasably securable to each other in the telescopically-extended upright configuration by the friction fit of adjacent pairs of frusto-conically-tapered rings to each other.
John Pastrnak - Livermore CA, US Rocky Hollaway - Modesto CA, US Carl Henning - Livermore CA, US Steve Deteresa - Livermore CA, US Walter Grundler - Hayward CA, US Lisle Hagler - Berkeley CA, US Edwin Kokko - Dublin CA, US Vernon Switzer - Livermore CA, US
Assignee:
The Regents of the University of California
International Classification:
F41H005/00
US Classification:
089/036010
Abstract:
A rapidly deployable portable convertible blast effects shield/ballistic shield includes a set two or more telescoping cylindrical rings operably connected to each other to convert between a telescopically-collapsed configuration for storage and transport, and a telescopically-extended upright configuration forming an expanded inner volume. In a first embodiment, the upright configuration provides blast effects shielding, such as against blast pressures, shrapnel, and/or fire balls. And in a second embodiment, the upright configuration provides ballistic shielding, such as against incoming weapons fire, shrapnel, etc. Each ring has a high-strength material construction, such as a composite fiber and matrix material, capable of substantially inhibiting blast effects and impinging projectiles from passing through the shield. And the set of rings are releasably securable to each other in the telescopically-extended upright configuration, such as by click locks.
Method Using A Electrostatic Generator/Motor Rotor Electrode System Suitable For Installation On The Outer Surface Of An Emb Rotor
- Livermore CA, US Lisle B. Hagler - Livermore CA, US
Assignee:
Lawrence Livermore National Security, LLC - Livermore CA
International Classification:
H02N 1/08
Abstract:
Electrostatic generator electrodes mounted on the outer surface of a fiber-composite rotor. The conducting strips are mounted with a slight tilt in angle such that the electrodes will experience no tension or compression effects as the rotor spins up or slows down. The compression would come about from effects associated with the Poisson Ratio. This change can eliminate any metal fatigue or loss of bonding that might have arisen if the electrodes were to be aligned with the axis.