Brigham Young University

Nathan Brad Crane

Larry L Howell

Robert C Davis

Brian D Jensen

Richard Vanfleet

Tracy Wendell Nelson

Henry Davis

James Harkness

Isa Kohls

Embodiments disclosed are systems and methods for interfacing a metallic capillary in a microchannel of a metallic body. A method may include inserting a portion of the metallic capillary into a portion the microchannel of the metallic body, sintering the portion of the metallic capillary to the portion of the microchannel of the metallic body, disposing a sacrificial powder at least proximate to the metallic capillary and the metallic body after sintering the portion of the metallic capillary and the portion of the microchannel of the metallic body, and infiltrating at least the portion of the metallic capillary sintered to the portion of the microchannel of the metallic body with an infiltrant in the presence of the sacrificial powder disposed at least proximate to the metallic capillary and the metallic body.

Methods for interfacing a metallic microchannel and a metallic capillary

In a general aspect, a method for additive manufacturing can include depositing a liquid on a first portion of an article, the liquid containing a dopant, the article including a feedstock material. The method can also include heating, at a first temperature, the article to, at least one of, evaporate or decompose the liquid. The heating at the first temperature can leave the dopant on the first portion of the article. The method can further include heating, at a second temperature, the article. The heating at the second temperature can result in the feedstock material melting and the dopant mixing with the feedstock material in a second portion of the article. The second portion of the article can include the first portion of the article.

Spatial control of material properties in additive manufacturing

The present invention relates to clutches for selectively transmitting torque, and more particularly, to compliant centrifugal clutches. A compliant clutch ( ) may have a plurality of engagement members ( and ), preferably at least three, and more preferably at least six. Each engagement member has an outer edge that is movable toward an interior surface of a receiving member ( ), such as a drum. Flexible segments ( and ) may connect the engagement members to each other. In embodiment, the engagement members are arrayed around a hub, but detached from the hub to form an expandable engagement portion. Both aggressive and non-aggressive engagement members are provided. In another embodiment, the engagement members are affixed by flexible segments to the hub to form an extensible engagement portion. In yet another embodiment, a first and a second arm, each of which contains multiple engagement members connected by flexible segments, extend from the hub to provide non-aggressive torque transfer to the drum.

Compliant clutch

Growing community of inventors

Springville, UT, United States of America

Nathan Brad Crane