Julie E Perkins

US Patent:

20180057189, Mar 1, 2018

Filed:

Nov 3, 2017

Appl. No.:

15/803417

Inventors:

- Chicago IL, US
Julie M. Perkins - Hawthorne CA, US
Kurt B. Kreiner - Rancho Palos Verdes CA, US
Philip D. Nguyen - Seal Beach CA, US

International Classification:

B64G 1/00
F03H 1/00
B64G 1/40
B64G 1/42

Abstract:

Described herein is a thrust system for a vehicle that includes at least three electrical power controllers, at least four electrical switches each configured to receive electrical power from at least one of the at least three electrical power controllers, and at least three thrusters each configured to receive electrical power from at least one of the at least three electrical switches. The at least four electrical switches are operable to switch a supply of electrical power from any of the at least three electrical power controllers to any one of the at least three thrusters.

US Patent:

20160122040, May 5, 2016

Filed:

Nov 5, 2014

Appl. No.:

14/533934

Inventors:

- Chicago IL, US
Julie M. Perkins - Hawthorne CA, US
Kurt B. Kreiner - Rancho Palos Verdes CA, US
Philip D. Nguyen - Seal Beach CA, US

International Classification:

B64G 1/00

Abstract:

Described herein is a thrust system for a vehicle that includes at least three electrical power controllers, at least four electrical switches each configured to receive electrical power from at least one of the at least three electrical power controllers, and at least three thrusters each configured to receive electrical power from at least one of the at least three electrical switches. The at least four electrical switches are operable to switch a supply of electrical power from any of the at least three electrical power controllers to any one of the at least three thrusters.

US Patent:

20140137537, May 22, 2014

Filed:

Nov 21, 2012

Appl. No.:

13/683688

Inventors:

THE BOEING COMPANY - , US
John Ziavras - Hermosa Beach CA, US
Julie Marie Perkins - Hawthorne CA, US
Kurt B. Kreiner - Rancho Palos Verdes CA, US
Glenn N. Caplin - Manhattan Beach CA, US
Brian K. Smith - Redondo Beach CA, US
Peter S. Lauenstein - Hermosa Beach CA, US

Assignee:

THE BOEING COMPANY - Chicago IL

International Classification:

F03H 1/00

US Classification:

60202

Abstract:

A gridded ion propulsion system comprising two power controllers, four ion thrusters, and two switch assemblies. One switch assembly is connected to the two power controllers and to two of the four ion thrusters. The other switch assembly is connected to the two power controllers and to the other two ion thrusters. Each switch assembly has first and second switching states which can be selected to enable either power controller to supply power to any one of the four ion thrusters. Each switch assembly comprises a respective movable body and a respective multiplicity of switches which change state in unison when the movable body changes position. For example, the movable body may be a rotatable hollow shaft driven by a stepper motor.