Illinois Tool Works Inc.

Focus Surgery, Inc.

Roy F Carlson

Narendra T Sanghvi

Peter L Gross

Wo-Hsing Chen

Kris A Dines

Richard Pfile

Michael A Penna

A rotary element dynamic imbalance determining apparatus includes a spindle having a first end for removably supporting a rotary element the imbalance of which is to be determined, and a housing for rotatably mounting the spindle. An output signal related to imbalance in the supported rotary element is generated as the spindle rotates. A rotary fluid coupling comprises a chamber between the spindle and housing, a port in the housing for coupling the chamber to a source of compressed air and a one-way fluid seal for dividing the chamber into a first portion and a second portion. A passageway extends along the spindle from the second portion to the first end of the spindle to supply inflating air thereto.

Modular rotary element processor

Growing community of inventors

New Palestine, IN, United States of America

Roy F Carlson