Textron Innovations Inc.

Bell Helicopter Textron Inc.

Scott Hemmen

Mark Adam Wiinikka

Nathan Patrick Green

James Blake

Frank B Stamps

Michael Reaugh Smith

Maurice D Griffin

Taeoh Lee

Chad Lewis Jarrett

John Frakes

Matt Ledbetter

A strut assembly for a vibration isolation device is disclosed, comprising a piston spindle; a first elastomeric member and a second elastomeric member bonded to the piston spindle and in contact with an upper housing and a lower housing, respectively; a first strut support and a second strut support attached to or integral with the upper housing and the lower housing, respectively; a first strut spindle and the second strut support configured to be placed in the first strut support and the second strut support, respectively; and one or more removable struts configured to be engaged to the first strut spindle and to the second strut spindle, wherein at least one of the first or second strut spindles is removable such that the one or more struts can be replaced without breaking a bonding of the first elastomeric member, the second elastomeric member, or both.

Removable struts for vibration isolation device mounting system

A piston for use in a liquid inertia vibration elimination ('LIVE') system. The piston includes a port that extends from a first end of the piston to an opposite second end of the piston, wherein a length of the port is longer than a length between the first and second ends of the piston.

Compact design of a liquid inertia vibration elimination system

According to one embodiment, a rotor system comprises a yoke, a grip, an elastomeric bearing, and a bearing restraint. The grip is positioned around a portion of the yoke and has both a closed end and an open end. The elastomeric bearing is coupled to the closed end of the grip and located between the closed end and the yoke. The bearing restraint is coupled to the grip between the yoke and the open end at a distance from the closed end such that the yoke contacts the bearing restraint when the rotor system is subject to a first centrifugal force but does not contact the bearing restraint when the rotor system is subject to a second centrifugal force greater than the first centrifugal force.

Bearing restraint for rotor systems

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Hurst, TX, United States of America

Scott Hemmen