Patent ID: 11867252
Assignee: MOSHUN, LLC
Field: Mechanical elements (Mechanical engineering)
Classification: CPC E  F | IPC E  F

Claim 0:
1. A device for controlling the motion of a door, comprising:
a body that includes a chamber filled at least in part with a shear thickening fluid, the body including at least one protrusion extending therefrom and that is configured to engage a first hinge leaf of a door hinge, wherein the body includes a piston and a cam in the chamber and at least one dowel extends from the cam and is configured to engage a second hinge leaf of the door hinge, and
a pin that is configured to be inserted into a knuckle of the first hinge leaf and a knuckle of the second hinge leaf and that is connected to the cam, and
wherein when one of the first and second hinge leaves is rotated with respect to the other, one of the cam and the body rotates such that the cam pushes the piston to move axially in a direction parallel to a rotational axis of the cam and exert pressure against the shear thickening fluid.