US 12,467,302 B2
Systems and devices for motion control
Timothy John Boundy, Deer Park, IL (US); and Richard Michael Lang, Howey In The Hills, FL (US)
Assigned to Moshun, LLC
Filed by Moshun, LLC, Oak Brook, IL (US)
Filed on Mar. 23, 2023, as Appl. No. 18/188,859.
Claims priority of provisional application 63/322,919, filed on Mar. 23, 2022.
Prior Publication US 2023/0304347 A1, Sep. 28, 2023
This patent is subject to a terminal disclaimer.
Int. Cl. E05F 3/20 (2006.01); E05D 3/02 (2006.01); E05F 1/12 (2006.01); E05F 3/04 (2006.01); E05F 3/10 (2006.01); E05F 3/12 (2006.01); E05F 3/18 (2006.01); E05F 5/02 (2006.01); E05F 5/08 (2006.01)
CPC E05F 3/20 (2013.01) [E05D 3/02 (2013.01); E05F 1/1223 (2013.01); E05F 3/04 (2013.01); E05F 3/10 (2013.01); E05F 3/104 (2013.01); E05F 3/12 (2013.01); E05F 3/18 (2013.01); E05F 5/02 (2013.01); E05F 5/08 (2013.01); E05Y 2201/21 (2013.01); E05Y 2201/212 (2013.01); E05Y 2201/256 (2013.01); E05Y 2201/264 (2013.01); E05Y 2201/474 (2013.01); E05Y 2201/638 (2013.01); E05Y 2800/21 (2013.01); E05Y 2800/41 (2013.01); E05Y 2900/132 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A device for controlling the motion of a door, comprising:
a first hinge knuckle that includes a chamber filled at least in part with a shear thickening fluid that is configured to have a decreasing viscosity in response to a first range of shear rates and an increasing viscosity in response to a second range of shear rates, wherein the second range of shear rates are greater than the first range of shear rates, the chamber further retaining a plunger, wherein the plunger is connected to a screw;
a second hinge knuckle that includes a nut and a portion of the screw;
an upper hinge pin having a tapped hole to receive a cap screw connected to a cap; and
a piston assembly with an angled portion configured to channel shear thickening fluid into one or more slots of the piston assembly,
wherein when the first hinge knuckle is rotated, the screw rotates relative to the nut such that the piston assembly moves vertically causing the piston assembly to exert pressure against the shear thickening fluid such that motion of the door transitions from a first velocity to a second velocity when the shear thickening fluid correspondingly responds to transitioning from the first range of shear rates to the second range of shear rates, wherein the second velocity is less than the first velocity, and
wherein rotation of the cap causes the cap screw to move vertically within a space between the upper hinge pin and the nut.