David J Kent

US Patent:

62871846, Sep 11, 2001

Filed:

Oct 1, 1999

Appl. No.:

9/410591

Inventors:

Louis R. Carpentier - Eagan MN
Thomas J. Daul - New Richmond WI
Alan P. Dimberg - Alexandria MN
Steven J. Dobrzynski - Osceola WI
David A. Kent - Rice Lake WI
Jeffrey D. Vangsness - Cumberland WI
William J. Whealon - Somerset WI

Assignee:

3M Innovative Properties Company - St. Paul MN

International Classification:

B24D 1100

US Classification:

451526

Abstract:

This invention encompasses abrasive articles that have a coating, typically made of at least a binder and abrasive particles, selectively removed from a portion of an exposed abrading surface of the article in order to inscribe a detectable marking on the abrasive article. Suitable coated abrasive articles include both articles that have the binder and abrasive particles sequentially coated on a backing as a make coat and deposited abrasive particles as well as articles that have the binder and abrasive particles simultaneously coated on the backing as a slurry coat. Coated abrasive articles that are particularly preferred include articles that have an exposed abrading or abrasive surface that is a textured, three-dimensional surface.

US Patent:

20210086362, Mar 25, 2021

Filed:

Dec 7, 2020

Appl. No.:

17/114490

Inventors:

- San Jose CA, US
Sarah Elliott - Mountain View CA, US
David Kent - Atlanta GA, US

Assignee:

Fetch Robotics, Inc. - San Jose CA

International Classification:

B25J 9/16

Abstract:

A method for selecting a preferred robotic grasp of an object-of-interest using pairwise ranking includes: identifying a robotic candidate grasp usable to grasp the object-of-interest, the object-of-interest situated in an environment; receiving a grasp preference for a preferred candidate grasp of the object-of-interest; calculating a heuristic to describe a relationship of the candidate grasp to one or more of the object-of-interest and the environment; and using the heuristic and using the grasp preference, computing a pairwise ranking of two candidate grasps to determine an ordering of the at least two candidate grasps.