Systems and devices for adjustable door closure control
AssigneeMoshun, LLC
InventorTimothy John Boundy
Life of this patent
Estimating the term…
Abstract
Disclosed are systems and devices for controlling the closing of a door. A head unit is to be installed in a doorjamb, comprising a chamber filled at least in part with a shear thickening fluid. A piston is connected to a cap and configured to exert pressure against the shear thickening fluid in response to a force applied to the cap. The systems and devices provide an adjustable design that resists door slamming and aggressive closure, serving as a safety device as well as noise, damage and pet control around doors (preventing closure if desired). An install kit provides exact location, depth control and guide to place over the head unit to tap it into place with a hammer.
Claims24
A device for controlling the closing of a door, comprising:
- a head unit that is configured to be installed in a doorjamb or door edge, the head unit comprising:
- a chamber filled at least in part with a shear thickening fluid;
- a piston head connected to a cap, the piston head connected to a rebound shim that rotates relative to the piston head and is configured to exert pressure against the dilatant shear thickening fluid in response to movement of the cap from a force applied to the cap, wherein rotation of the rebound shim to a first position substantially aligns one or more slots of the rebound shim with one or more slots of the piston head, and rotation of the rebound shim to a second position substantially misaligns the one or more slots of the rebound shims with the one or more slots of the piston head;
- a plunger bushing inserted into the head unit, the plunger bushing having a cavity fluidly isolated from the chamber, the plunger bushing serving as a guide for the cap which is configured to move into the cavity in response to the force;
- a plunger between the cap and the piston head, the plunger bushing serving as a guide for the plunger that is configured to move the piston head into the chamber in response to the door striking the cap;
- a rebound guide plug connecting the rebound shim to the plunger, wherein the rebound shim is configured to rotate from the first position allowing the piston head to move into the chamber and rotate to the second position to lock the piston head from moving into the chamber, and
- wherein the piston head receives the plunger, a first portion of the guide plug is received in the rebound shim and in the piston head, and a second portion of the guide plug is received in the plunger.
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.
Dependencies are inferred from the claim text.