Larry R Larson

US Patent:

20100281884, Nov 11, 2010

Filed:

Jan 22, 2010

Appl. No.:

12/692489

Inventors:

John Myron Rawski - Plymouth MN, US
Larry Allen Larson - Rogers MN, US
Jason William Dickmann - Champlin MN, US
Pedro Ramon Guitart - Lakeville MN, US
Joseph David Ricke - Arden Hills MN, US
William James Hanson - Edina MN, US
Alan Frank Wells - Anoka MN, US

International Classification:

F25B 21/02

US Classification:

62 36

Abstract:

Embodiments of the invention provide a thermal management unit including a housing, at least one fan, a plurality of thermoelectric modules, at least one heat sink assembly coupled to the plurality of thermoelectric modules, and controller providing power to the plurality of thermoelectric modules. The thermal management unit also includes a printed circuit board incorporating the plurality of thermoelectric modules and electrically connecting the plurality of thermoelectric modules to the controller. The printed circuit board separates an ambient side of the thermal management unit and an enclosure side of the thermal management unit.

US Patent:

20150267828, Sep 24, 2015

Filed:

Oct 1, 2013

Appl. No.:

14/435087

Inventors:

- Sartell MN, US
Larry Larson - Rogers MN, US
Duane Plumski - St. Joseph MN, US
Adam L. Kalthoff - Albany MN, US

Assignee:

DeZURIK, Inc. - Sartell MN

International Classification:

F16K 24/04
F16K 31/18

Abstract:

The present disclosure is directed to a combination air valve that uses buoyancy to lift seals into place, preventing media from escaping from the valve. Once the seals are in place, pipeline pressure is used to open and close the valve. The combination air valve includes a piston assembly which includes a main disc, a piston head located above the main disc, a float below the main disc, and a float shaft joining the float to the piston. When no media is in the valve the float is at the bottom of the valve and the main disc is down, allowing gases to leave the valve. The float is lifted as media enters the valve, thus using buoyancy to lift the main disc into place, preventing media from escaping from the valve. Once the seals are in place, pipeline pressure is used to open and close the valve.