John P Dain

US Patent:

7621148, Nov 24, 2009

Filed:

Aug 7, 2007

Appl. No.:

11/890451

Inventors:

John F. Dain - Hollister CA, US
Elizabeth L. Dain - Hollister CA, US
Nicholas J. Henneman - Hollister CA, US

International Classification:

F25D 11/00

US Classification:

62440, 62441, 22059201

Abstract:

An ultra low temperature freezer is optimized with a combination of vacuum and fiberglass insulation for long-term biological storage with accurate process cooling with critical temperature performance. A programmable cooling and cryogenic freezing system uses sealed liquid nitrogen for cooling and freezing. A hybrid completely non-mechanical system exhibits temperature uniformity and reliability, saves space, requires extremely low operating energy and minimizes need for air conditioning in the operating environment. Top-located components control the flow of liquid nitrogen even under flooding conditions. Sectioned inner doors mitigate thermal transfer to other samples and maintain ULT while accessing the freezer.

US Patent:

7823394, Nov 2, 2010

Filed:

Nov 2, 2007

Appl. No.:

11/934696

Inventors:

John Dain - Hollister CA, US
Boyd Bowdish - Los Gatos CA, US
Nick Henneman - Tres Pinos CA, US

Assignee:

Reflect Scientific, Inc. - Orem UT

International Classification:

F17C 3/08

US Classification:

62 451, 62100, 62268

Abstract:

Systems and methods are disclosed to insulate a vessel includes placing a plurality of shells on all sides of the vessel without providing a direct energy pathway from outer walls of the vessel to the inner walls of the vessel; placing the shells under a vacuum; cryogenically cooling the shells to a cryogenic temperature; and while under vacuum, allowing the shell temperature to rise from the cryogenic temperature to ambient temperature.

US Patent:

8424317, Apr 23, 2013

Filed:

Sep 30, 2010

Appl. No.:

12/894206

Inventors:

John Dain - Hollister CA, US
Boyd Bowdish - Los Gatos CA, US
Nick Henneman - Tres Pinos CA, US

Assignee:

Reflect Scientific Inc. - Orem UT

International Classification:

F17C 3/08

US Classification:

62 451, 62100

Abstract:

Systems and methods are disclosed to provide an ultra low temperature (ULT) cryogenic processor apparatus. The apparatus includes an external housing with flat sides; an inner housing coupled to the external housing to define a vacuum region there between; material disposed in the vacuum region to provide redundant insulation and structural support; and a cryogenic heat exchanger contained in the inner housing.

US Patent:

20090113899, May 7, 2009

Filed:

Nov 2, 2007

Appl. No.:

11/934693

Inventors:

John Dain - Hollister CA, US
Boyd Bowdish - Los Gatos CA, US
Nick Hanneman - Tres Pinos CA, US

International Classification:

F17C 9/00
F25D 11/04
F25B 39/02
F25D 19/00

US Classification:

62 481, 62440, 62524, 62449

Abstract:

Systems and methods are disclosed to provide an ultra low temperature (ULT) cryogenic processor apparatus. The apparatus includes an external housing with flat sides; an inner housing coupled to the external housing to define a vacuum region there between; material disposed in the vacuum region to provide redundant insulation and structural support; and a cryogenic heat exchanger contained in the inner housing.

US Patent:

20140013778, Jan 16, 2014

Filed:

Dec 30, 2012

Appl. No.:

13/731013

Inventors:

John Dain - Hollister CA, US
Boyd Bowdish - Los Gatos CA, US
Nick Henneman - Tres Pinos CA, US

Assignee:

Reflect Scientific, Inc. - Orem UT

International Classification:

F17C 13/00

US Classification:

62 511, 2205601

Abstract:

Systems and methods are disclosed to provide a cryogenic processor apparatus with an outer housing; an inner housing coupled to the external housing to define a vacuum region there between; and material disposed in the vacuum region to provide redundant insulation and structural support at a cryogenic temperature.

US Patent:

6804976, Oct 19, 2004

Filed:

Dec 12, 2003

Appl. No.:

10/734509

Inventors:

John F. Dain - Hollister CA 95024

International Classification:

F25B 3902

US Classification:

62525, 62524, 62504, 62515, 165174, 165171, 165172, 165173, 165148

Abstract:

For high reliability through redundancy, in a thermal chamber, heat exchange tubes are configured in multiple parallel runs. Typically three tubes are attached side-by-side in a strip which is formed into folded-back horizontal rows to be built into or attached to the walls of the chamber. In a freezer, each tube can serve independently as an evaporator when connected to a compressor/condenser source. Versatile source interfacing is provided by two valve-manifold routing units, one at each end of the multi-tube strip, enabling easy tube substitution in case of failure, as well as facilitating source-swapping, networking, defrosting and refrigerant operations such as purging, flushing, replenishing, changing or replacement, all without interrupting the required cooling process or affecting the chamber temperature. The multi-tube strip and valve-manifolds enhance the reliability of thermal systems such as ultra-low temperature biomedical freezers entrusted with critical at-risk payloads, and assist owner-operators in maintaining such systems fully operational with minimal need for outside repair expertise.