Patent ID: 11866977
Assignee: MOSHUN, LLC
Field: Machine tools (Mechanical engineering)
Classification: CPC B  E  F | IPC B  E  F

Claim 14:
15. A device for controlling the motion of an object, comprising:
a head unit that includes a chamber filled at least in part with a dilatant shear thickening fluid;
a piston head that is positioned in the chamber of the head unit and that moves within the head unit, wherein the piston head is connected to a rotatable cap via a plunger, wherein the piston head has at least one slot;
a shim that includes at least one slot and that is connected to the piston head via the plunger, and is rotated by turning the cap and plunger relative to the piston head and wherein the piston head and shim are configured to move with respect to the dilatant shear thickening fluid in response to a force applied to the cap by an object;
a plunger bushing having a cavity; and
a spring arranged in the cavity, wherein the spring is configured to provide mechanical resistance between the cap and the plunger bushing in response to the force applied to the cap, and wherein the plunger bushing has one or more grooves to receive one or more O-rings to seal the chamber from the cavity or to seal an interface between the plunger rod and the plunger bushing; and
a guide plug connecting the shim to the plunger, wherein the piston head receives the plunger, a first portion of the guide plug is received in the shim and in the piston head, and a second portion of the guide plug is received in the plunger.