Roland M Morley, O Dell M Keil, Curtis B Keepers, Roy K Fischer: Flip-up helmet mount for night vision goggle. Litton Systems, Poms Smith Lande & Rose, April 9, 1996: US05506730 (80 worldwide citation)

A flip-up helmet mount for a night vision goggle includes a plurality of nested relatively movable brackets, the first of which is secured to a user's helmet. A second bracket pivots relative to the first to provide flip-up motion for the night vision goggle, and a third of the nested brackets is pi ...

Darrel L Doliber, O Dell M Keil: Adjustment mechanism. Litton Systems, February 15, 1983: US04373269 (28 worldwide citation)

An adjustment mechanism particularly for a weapon sight system that has one or more adjustment knobs which are readily accessible to an operator for a selected adjustment yet which are fully protected from accidental adjustment.