US 12,344,382 B2
Mechanical shaft locking mechanism with back-drive prevention
Douglas E. Hoover, Colorado Springs, CO (US); and Keith M. Ferguson, Colorado Springs, CO (US)
Assigned to AMI Industries, Inc., Colorado Springs, CO (US)
Filed by AMI Industries, Inc., Colorado Springs, CO (US)
Filed on Feb. 24, 2021, as Appl. No. 17/184,075.
Claims priority of provisional application 62/982,338, filed on Feb. 27, 2020.
Prior Publication US 2021/0269160 A1, Sep. 2, 2021
Int. Cl. B64D 11/06 (2006.01); F16D 63/00 (2006.01); G05G 1/02 (2006.01); G05G 5/05 (2006.01)
CPC B64D 11/0644 (2014.12) [F16D 63/006 (2013.01); F16D 63/008 (2013.01); G05G 1/02 (2013.01); G05G 5/05 (2013.01); G05G 2505/00 (2013.01)] 15 Claims
OG exemplary drawing
 
1. A mechanical shaft locking apparatus comprising:
a locking shaft having a threaded surface;
a nut having a threaded surface corresponding to the threaded surface of the locking shaft;
a housing defining a locking shaft channel and an opening to receive the nut; and
at least two biasing elements configured to bias the threaded surface of the nut toward the threaded surface of the locking shaft, at least two of the at least two biasing elements disposed on opposing sides of the locking shaft,
wherein the nut is configured to translate linearly along an axis perpendicular to the locking shaft when a corresponding button is depressed.