Self draining door threshold
First Claim
1. A self draining door threshold comprising,a threshold having a sill, said sill having an exterior section adapted to be positioned on the exterior side of a door and an interior section adapted to be positioned on the interior side of a door,a check valve positioned in said sill and having an inlet side for receiving water from the interior section and an outlet side adapted to open to operatively drain water to the exterior side of a door, andsaid check valve including a passageway converging from a substantially open end at said inlet side to a substantially normally closed end at said outlet side, said passageway including a flexible side wall in said exterior section which is adapted to be exposed to the exterior air pressure whereby water will flow through said check valve when pressure generated by said water in said passageway exceeds the opposing exterior air pressure combined with pressure required to flex said flexible side wall to open said closed end.
2 Assignments
0 Petitions
Accused Products
Abstract
A self draining door threshold includes a wedge-shaped silicone check valve in communication with a water reservoir on the interior side. The check valve is normally closed but will yieldably open in response to water pressure which overcomes the resilience of the silicone material and the air pressure on the top wall of the wege-shaped passageway. The check valve functions as a seal against incoming air but will open to allow escape of water as needed. The silicone material seals around foreign material in the valve making it air tight. The bottom edge of the door includes moisture resistant material having an upwardly extending portion received in a groove. The exterior side of the door is also covered with moisture resistant material which has inwardly extending portions received in a vertical groove between abutting panels. A moisture resistant plate extends along the bottom edge of the door and has downwardly extending portions engaging the weather seal on the threshold on the exterior side and a wood portion of the threshold on the interior side. The plate directs water from the vertical groove outwardly of the door.
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Citations
26 Claims
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1. A self draining door threshold comprising,
a threshold having a sill, said sill having an exterior section adapted to be positioned on the exterior side of a door and an interior section adapted to be positioned on the interior side of a door, a check valve positioned in said sill and having an inlet side for receiving water from the interior section and an outlet side adapted to open to operatively drain water to the exterior side of a door, and said check valve including a passageway converging from a substantially open end at said inlet side to a substantially normally closed end at said outlet side, said passageway including a flexible side wall in said exterior section which is adapted to be exposed to the exterior air pressure whereby water will flow through said check valve when pressure generated by said water in said passageway exceeds the opposing exterior air pressure combined with pressure required to flex said flexible side wall to open said closed end.
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9. A self draining door threshold comprising,
a door having a door way frame, said door having interior and exterior sides, a threshold having a sill, said sill having an exterior section positioned on the exterior side of the door and an interior section positioned on the interior side of the door, a check valve positioned in said sill and having an inlet side for receiving water from the interior section and an outlet side adapted to open to operatively drain water to the exterior side of said door, and said check valve including a passageway converging from a substantially open end at said inlet side to a substantially normally closed end at said outlet side, said passageway including a flexible sidewall in said exterior section exposed to the exterior air pressure whereby water flows through said check valve when pressure generated by said water in said passageway exceeds the opposing exterior air pressure combined with the pressure required to flex said flexible sidewall to open said closed end.
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25. A self draining door comprising,
a door having oppositely disposed sides and a bottom edge, and including vertically arranged panels in substantial abutting relationship forming a vertical groove therebetween on one of said sides, a plate extending over the bottom edge, and moisture resistant material on said one side of said door having inwardly turned flanges received in said vertical groove between said panels, said groove extending to the bottom edge whereby moisture received in said vertical groove is directed outwardly by said plate on the bottom edge of said door.
Specification