US 2022/0049791 A1 · CHILD-RESISTANT DRAIN VALVE

Abstract

A safety device allows selective opening or closing of a drain opening of a tank, to render such action more difficult for a child. The device has a body, a plug, a means for restricting axial movement of the plug in a conduit that runs through the body, and, optionally, a tether. The conduit is adapted for engagement in the drain opening. The plug is frictionally engaged in the conduit. The means for restricting axial movement has complementary elements disposed on the plug and on the body, such that, in a first rotational position, the plug is axially retained relative to the conduit and, in a second rotational position, the plug is not restricted from axial movement out of the conduit. The tether attaches to the plug and the body to keep the plug proximate to the body.

Claims11

Dependent claims

A device for selectively opening or closing a drain opening of a tank for containing a liquid, the device comprising:

a body, adapted for engagement into the drain opening, the body having a conduit running therethrough;
a plug, sized and shaped for frictional engagement in the conduit;
means for restricting axial movement of the plug in the conduit, complementary elements of the means disposed on the plug and on the body, such that, in a first rotational position, the plug is axially retained relative to the conduit and, in a second rotational position, the plug is not restricted from axial movement out of the conduit;
and
a tether, adapted at a first end to be retained on the plug and adapted at a second end to be retained by the body;
and
a rectangular flange that extends radially from the body, with an opening in the rectangular flange that provides an anchor point for the second end of the tether.

4 more elements

Dependencies are inferred from the claim text.

Child-resistant drain valve

Life of this patent

Child-resistant drain valve

Life of this patent

Abstract

Claims11