Nathan O Rasmussen

US Patent:

20050014582, Jan 20, 2005

Filed:

May 14, 2004

Appl. No.:

10/846937

Inventors:

Michael Whiting - Roseau MN, US
Larry Howell - Orem UT, US
Robert Todd - Provo UT, US
Spencer Magleby - Provo UT, US
Mark Anderson - Lafayette IN, US
Nathan Rasmussen - Provo UT, US

International Classification:

F16H055/56
F16H063/00

US Classification:

474014000, 474012000, 474008000

Abstract:

A continuously variable transmission or clutch device () includes at least one pulley () rotatable on a pivot () and having a pair of adjustable sheaves () including a movable sheave () movable along the pivot. An ortho-planar compliant mechanism () is capable of elastic deformation and operatively coupled to the movable sheave to bias the movable sheave towards or away from the other sheave. The ortho-planar compliant mechanism includes a substantially flat configuration and is deflectable therefrom as the movable sheave moves. The ortho-planar compliant mechanism can include a center platform () disposed on the pivot and a plurality of arms () extending from the platform to distal ends () coupled to the movable sheave.

US Patent:

20070095503, May 3, 2007

Filed:

Aug 18, 2006

Appl. No.:

11/507246

Inventors:

Rishabh Sinha - Peoria IL, US
Nathan Rasmussen - Peoria IL, US
Kyle Hummel - Holly Springs NC, US
Jiubo Ma - Dunlap IL, US

International Classification:

B60H 1/00

US Classification:

165041000

Abstract:

A gas to air heat exchanger includes corrosive resistant tubes made from or internally coated with one material, and high thermal conductivity air fins made from another material. This construction allows for meeting heat transfer requirements in a spatially constrained application, such as over the road trucks, where a mixture of recirculated exhaust gas and incoming air are compressed, then cooled, before being supplied to the engine intake. In one example, the heat exchanger includes tubes made from stainless steel brazed to relatively thin copper air fins in a low temperature brazing process, and the tubes are brazed on respective ends to heads of stainless steel via a high temperature brazing process. This core is then joined to an aluminum inlet tank and possible non-metallic outlet tank via a mechanical crimping process that positions a seal between the tanks and the respective heads. In another example embodiment, corrosive resistant brazing material connects certain components of the heat exchanger, and coats surfaces of the heat exchanger exposed to condensed corrosive gases from engine exhaust.