US Patent 11629535 Surface mounted door check device

A surface-mounted device for controlling the swing/rotational motion of a hinged door/panel system. Said device controls the velocity of the door/panel's and provides check point(s) in the pathway of its motion. The device includes a non-pivoting carrier component to be fixed upon a hinged door/panel, a non-pivoting receiver component fastened to the adjacent and separate area which shares a common hinge(s)/axis with the movable door/panel and a flexible control arm component firmly attached at one end to the carrier. The flexible control arm is aligned with the receiver's through-body aperture by means of the carrier's fixed position on a movable hinged door/panel and provides control of the door/panel by means of passing into and through the aperture provisioned in the receiver in a linear manner to provide both speed and positional check control (motion detents) of the door's potential swing arc path. The speed control aspect of the device is accomplished by means of controlled frictional contact between the flexible control arm's component material(s) and the receiver's aperture and this effect is enhanced by means of the temporary physical deformation exhibited by the flexible control arm whilst it is undergoing loading stresses as it passes within the constriction of the receiver's aperture geometry, its component materials and the energized spherical element acting upon the wide surface of the flexible control arm by limiting frictional contact between the flexible control arm and the receiver's aperture when the energized spherical element is not engaged with the flexible control arm's provisioned negative areas(s) and the attached door/panel is in motion. Maximum frictional force is delivered by the device when the spherical element engages a provisioned negative area on the flexible control arm, thus creating a check in the door/panel swing path. The device may be added/retrofitted to the surfaces of a pre-existing or new hinged door/panel system without significant design or structural modifications of said hinged door/panel systems and their associated components.