Vernon A Switzer

US Patent:

7219588, May 22, 2007

Filed:

Apr 2, 2004

Appl. No.:

10/817107

Inventors:

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:

The Regents of the University of California - Oakland CA

International Classification:

F41H 5/14

US Classification:

86 50, 89 3609

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.

US Patent:

7819049, Oct 26, 2010

Filed:

Mar 30, 2007

Appl. No.:

11/731420

Inventors:

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.

US Patent:

7905168, Mar 15, 2011

Filed:

Apr 3, 2007

Appl. No.:

11/732786

Inventors:

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.

US Patent:

54163811, May 16, 1995

Filed:

Aug 3, 1993

Appl. No.:

8/101161

Inventors:

Raymond D. Scarpetti - Livermore CA
Clarence D. Parkison - Livermore CA
Vernon A. Switzer - Livermore CA
Young J. Lee - Sunnyvale CA
William C. Sawyer - Manteca CA

Assignee:

The United States of America as represented by the United States
Department of Energy - Washington DC

International Classification:

H01J 2946

US Classification:

313446

Abstract:

A compact, high power electron gun having enhanced thermal and mechanical stability which incorporates a mechanically coupled, self aligning structure for the anode and cathode. The enhanced stability, and reduced need for realignment of the cathode to the anode and downstream optics during operation are achieved by use of a common support structure for the cathode and anode which requires no adjustment screws or spacers. The electron gun of the present invention also incorporates a modular design for the cathode, in which the electron emitter, its support structure, and the hardware required to attach the emitter assembly to the rest of the gun are a single element. This modular design makes replacement of the emitter simpler and requires no realignment after a new emitter has been installed. Compactness and a reduction in the possibility of high voltage breakdown are achieved by shielding the "triple point" where the electrode, insulator, and vacuum meet. The use of electric discharge machining (EDM) for fabricating the emitter allows for the accurate machining of the emitter into intricate shapes without encountering the normal stresses developed by standard emitter fabrication techniques.

US Patent:

20190003643, Jan 3, 2019

Filed:

Aug 27, 2018

Appl. No.:

16/113318

Inventors:

- Livermore CA, US
- Guanajuato, MX
Guillaume Petitpas - Livermore CA, US
Vernon A. Switzer - Livermore CA, US
Elias Rigoberto Ledesma-Orozco - Salamanca GTO., MX
Victor Alfonso Alcantar-Camarena - Salamanca GTO., MX

International Classification:

F17C 1/02
F17C 1/12
F17C 13/00

Abstract:

A cryogenic hydrogen storage vessel includes an outer vacuum vessel, a reinforcement ring on the outer vacuum vessel, an inner pressure vessel inside of the outer vacuum vessel, and a vacuum space between the outer vacuum vessel and the inner pressure vessel. One embodiment of the cryogenic hydrogen storage vessel includes an outer vacuum vessel; a hump-shaped reinforcement ring on the outer vacuum vessel, the hump-shaped reinforcement ring including an external hump portion that protrudes from the hump-shaped reinforcement ring and an internal recess in the hump-shaped reinforcement ring; an inner pressure vessel inside of the outer vacuum vessel, a vacuum space between the outer vacuum vessel and the inner pressure vessel, and a composite support ring in the vacuum space extending from the hump-shaped reinforcement ring on the outer vacuum vessel to the inner pressure vessel, the composite support ring nested in the recess in the hump-shaped reinforcement ring.

US Patent:

20180224064, Aug 9, 2018

Filed:

Feb 7, 2017

Appl. No.:

15/426507

Inventors:

- Livermore CA, US
- Guanajuato, MX
Guillaume Petitpas - Livermore CA, US
Vernon A. Switzer - Livermore CA, US
Elias Rigoberto Ledesma-Orozco - Salamanca GTO., MX
Victor Algonso Alcantar-Camarena - Salamanca GTO., MX

International Classification:

F17C 1/02
F17C 1/12
F17C 13/00

Abstract:

A cryogenic hydrogen storage vessel includes an outer vacuum vessel, a reinforcement ring on the outer vacuum vessel, an inner pressure vessel inside of the outer vacuum vessel, and a vacuum space between the outer vacuum vessel and the inner pressure vessel. One embodiment of the cryogenic hydrogen storage vessel includes an outer vacuum vessel; a hump-shaped reinforcement ring on the outer vacuum vessel, the hump-shaped reinforcement ring including an external hump portion that protrudes from the hump-shaped reinforcement ring and an internal recess in the hump-shaped reinforcement ring; an inner pressure vessel inside of the outer vacuum vessel, a vacuum space between the outer vacuum vessel and the inner pressure vessel, and a composite support ring in the vacuum space extending from the hump-shaped reinforcement ring on the outer vacuum vessel to the inner pressure vessel, the composite support ring nested in the recess in the hump-shaped reinforcement ring.

US Patent:

20170146193, May 25, 2017

Filed:

Nov 24, 2015

Appl. No.:

14/950527

Inventors:

- Salamanca, MX
- Livermore CA, US
Guillaume Petitpas - Livermore CA, US
Vernon A. Switzer - Livermore CA, US

International Classification:

F17C 13/00
F17C 1/12

Abstract:

A pressure vessel apparatus for cryogenic capable storage of hydrogen or other cryogenic gases at high pressure includes an insert with a parallel inlet duct, a perpendicular inlet duct connected to the parallel inlet. The perpendicular inlet duct and the parallel inlet duct connect the interior cavity with the external components. The insert also includes a parallel outlet duct and a perpendicular outlet duct connected to the parallel outlet duct. The perpendicular outlet duct and the parallel outlet duct connect the interior cavity with the external components.

US Patent:

20140263358, Sep 18, 2014

Filed:

Feb 12, 2014

Appl. No.:

14/179398

Inventors:

- Livermore CA, US
Timothy O. Ross - Patterson CA, US
Vernon A. Switzer - Livermore CA, US
Salvador M. Aceves - Livermore CA, US
Nicholas J. Killingsworth - Pleasanton CA, US

International Classification:

F17C 13/00

US Classification:

22056004

Abstract:

An insert for a cryogenic capable pressure vessel for storage of hydrogen or other cryogenic gases at high pressure. The insert provides the interface between a tank and internal and external components of the tank system. The insert can be used with tanks with any or all combinations of cryogenic, high pressure, and highly diffusive fluids. The insert can be threaded into the neck of a tank with an inner liner. The threads withstand the majority of the stress when the fluid inside the tank that is under pressure.