US 12,486,705 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. 18/188,861.
Claims priority of provisional application 63/322,919, filed on Mar. 23, 2022.
Prior Publication US 2023/0304342 A1, Sep. 28, 2023
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)] 21 Claims
OG exemplary drawing
 
1. A device for controlling the motion of a door, comprising:
a housing that includes a nut and 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;
a screw at least partially within the nut, the screw connected to a pin;
a first hinge leaf to receive the pin such that the pin and the screw are configured to rotate with the first hinge leaf; and
a second hinge leaf in a fixed position relative to the housing,
wherein when the first hinge leaf is rotated, the screw rotates relative to the housing and the nut such that the nut moves vertically, forcing a 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.