US 11,898,385 B2
Device and process to dampen vibration in multi-rod configurations
Benjamin Dyer, Waco, TX (US); and Garrett Wise, Waco, TX (US)
Assigned to MARATHONNORCO AEROSPACE, INC., Waco, TX (US)
Filed by MarathonNorco Aerospace, Inc., Waco, TX (US)
Filed on Feb. 11, 2020, as Appl. No. 16/787,444.
Claims priority of provisional application 62/803,760, filed on Feb. 11, 2019.
Prior Publication US 2020/0256098 A1, Aug. 13, 2020
Int. Cl. E05C 17/30 (2006.01); E05C 17/12 (2006.01); F16F 7/09 (2006.01)
CPC E05C 17/30 (2013.01) [E05C 17/12 (2013.01); F16F 7/09 (2013.01); E05Y 2900/502 (2013.01); E05Y 2900/531 (2013.01)] 19 Claims
OG exemplary drawing
 
1. A hold open rod comprising:
an inner member;
an outer member configured to have the inner member slide in and out of the outer member; and
a noncircular dampening member arranged on the inner member, the non-circular dampening member comprising an inner surface that forms a cylindrical aperture that extends through the noncircular dampening member, the noncircular dampening member being configured to dampen movement and vibration of at least one of the following: the inner member and the outer member,
wherein the inner surface that forms the cylindrical aperture is configured and sized such that the noncircular dampening member is configured to rotate about the inner member; wherein the noncircular dampening member comprises a three-lobed shaped member having an outer surface with three flat portions and three lobe portions;
wherein the noncircular dampening member is configured to rotate about the inner member and change an orientation of the noncircular dampening member with respect to the inner member to change an axis of vibration of the noncircular dampening member; and
wherein the noncircular dampening member is configured to provide additional intentional dynamic instability to dampen movement and vibration of at least one of the following: the inner member and the outer member.