Jeffrey H Olson

US Patent:

6813892, Nov 9, 2004

Filed:

May 30, 2003

Appl. No.:

10/449747

Inventors:

Jeffrey R. Olson - San Mateo CA
Patrick J. Champagne - Portola Valley CA

Assignee:

Lockheed Martin Corporation - Bethesda MD

International Classification:

F25B 900

US Classification:

62 6, 62335

Abstract:

A pulse tube cryocooler ( ) is disclosed having a second cryocooler section ( ) with a single pulse tube stage ( ), and having a first cryocooler section ( ) with a pair of pulse tube stages ( ). A first pressure oscillator ( ) is associated with the first cryocooler section ( ), while a second pressure oscillator ( ) is associated with the second cryocooler section ( ). The first cryocooler section ( ) and the second cryocooler section ( ) are fluidly isolated from each other. Therefore, the charge pressure, the pressure amplitude, oscillation frequency, and working gas in each of the first cryocooler section ( ) and the second cryocooler section ( ) may be independently selected/established.

US Patent:

6865894, Mar 15, 2005

Filed:

Mar 12, 2003

Appl. No.:

10/388187

Inventors:

Jeffrey R. Olson - San Mateo CA, US

Assignee:

Lockheed Martin Corporation - Bethesda MD

International Classification:

F25B009/00

US Classification:

62 6, 60520

Abstract:

The performance of a multi-stage inertance pulse tube cryocooler in accordance with an embodiment of the present invention may be enhanced by cooling the inertance tube of one stage placing it in thermal communication with the cool heat exchanger of a preceding stage. Cooling at least one inertance tube of a multi-stage cooler in this invention lowers the viscosity and sound speed of the gas in the inertance tube, thereby improving the cooling power for that subsequent cooling stage, and for the entire device.

US Patent:

6983610, Jan 10, 2006

Filed:

Feb 4, 2005

Appl. No.:

11/049675

Inventors:

Jeffrey R. Olson - San Mateo CA, US

Assignee:

Lockheed Martin Corporation - Bethesda MD

International Classification:

F25B 9/00
F25B 9/10

US Classification:

62 6, 62335, 62513

Abstract:

The performance of a multi-stage inertance pulse tube cryocooler in accordance with an embodiment of the present invention may be enhanced by cooling the inertance tube of one stage placing it in thermal communication with the cool heat exchanger of a preceding stage. Cooling at least one inertance tube of a multi-stage cooler in this invention lowers the viscosity and sound speed of the gas in the inertance tube, thereby improving the cooling power for that subsequent cooling stage, and for the entire device.

US Patent:

20090240735, Sep 24, 2009

Filed:

Mar 5, 2009

Appl. No.:

12/398957

Inventors:

Roopnath Grandhi - Sunnyvale CA, US
Raghav Gupta - Sunnyvale CA, US
Neelakantan Sundaresan - Mountain View CA, US
Denis Golovnya - Allston MA, US
Jeffrey Olson - Charlton MA, US

International Classification:

G06F 17/00

US Classification:

7071041, 707E17001

Abstract:

A system to provide image processing services responsive to requests including image data includes a system layer that forwards a request to an image application processing interface. Image processing provides an image comparison, barcode recognition, and optical character recognition. The image processing compares the image data to products in a database in order to identify a matching product. The system layer receives the matching information and forwards to a user.

US Patent:

20130306279, Nov 21, 2013

Filed:

May 15, 2013

Appl. No.:

13/894538

Inventors:

Jeffrey R. Olson - San Mateo CA, US

Assignee:

Lockheed Martin Corporation - Missiles and Fire Control - Bethesda MD

International Classification:

F28D 15/04

US Classification:

16510426

Abstract:

A heat exchanger for use with a refrigeration device having a FPA disposed therein being comprised of a polymeric composite mesh material having a hot end and a cold end and defining an array of weft capillaries interwoven with a perpendicular array of warp strands. The array of weft capillaries may include a plurality of high pressure inlet capillaries for channeling and distributing high pressure gas from an inlet at the hot end to a Joule-Thomson orifice at the cold end, a plurality of low pressure outlet capillaries for channeling and distributing high pressure gas from a Joule-Thomson orifice to an outlet of the heat exchanger, and a plurality of low thermal conductivity fibers interspersed between the high pressure inlet capillaries and the low pressure outlet capillaries. In example embodiments. the array of warp strands comprises at least one or more of carbon fibers, copper fibers or glass fibers.

US Patent:

20140013776, Jan 16, 2014

Filed:

Sep 13, 2013

Appl. No.:

14/026261

Inventors:

Jeffrey R. OLSON - San Mateo CA, US

Assignee:

Lockheed Martin Corporation - Bethesda MD

International Classification:

F25B 9/02

US Classification:

62 6, 13756501

Abstract:

A system, apparatus and method for a compressor hub assembly configured for use with a dual piston compressor is provided and includes a cylindrically shaped body having a centrally located inner wall and defining cylinder sealing surface for receiving and maintaining at least one compressor pump; a plurality of bores integrated within the body, the bores defining at least one fill port, a fluid inlet port, an output port, at least two compression bores, an off-center cross-bore interconnected with the one of the at least two compression bores, and at least one reservoir passages; at least one check-valve assembly disposed in the output port, the check valve assembly including a check valve, a valve seal and a valve retainer, wherein the use of the check valve assembly and the plurality of bores produces a continuous DC flow output when fluid is flowed through the compressor pump and into the hub assembly.

US Patent:

59539208, Sep 21, 1999

Filed:

Nov 21, 1997

Appl. No.:

8/975766

Inventors:

Gregory W. Swift - Sante Fe NM
Jeffrey R. Olson - San Mateo CA

Assignee:

Regent of the University of California - Los Alamos NM

International Classification:

F25B 900

US Classification:

62 6

Abstract:

Thermal insulation of the pulse tube in a pulse-tube refrigerator is maintained by optimally varying the radius of the pulse tube to suppress convective heat loss from mass flux streaming in the pulse tube. A simple cone with an optimum taper angle will often provide sufficient improvement. Alternatively, the pulse tube radius r as a function of axial position x can be shaped with r(x) such that streaming is optimally suppressed at each x.

US Patent:

20210271093, Sep 2, 2021

Filed:

May 17, 2021

Appl. No.:

17/321725

Inventors:

- Cupertino CA, US
Marinus Meursing - Sunnyvale CA, US
Jeffrey C. Olson - San Francisco CA, US
Fletcher R. Rothkopf - Los Altos CA, US
Jason C. Sauers - Sunnyvale CA, US

International Classification:

G02B 27/01
G06F 3/01
G02C 3/00

Abstract:

A head-mounted display to be worn by a user includes a housing, and an eye chamber to be positioned adjacent to eyes of the user. A support assembly includes a headband and an adjustment mechanism that is operable to change fit of the headband relative to the head of the user in response to a control signal, wherein the adjustment mechanism includes a feedback component, and the control signal is generated based on output from the feedback component.