Liquid containment door with continuous gasket

Abstract

A pedestrian door system includes a door frame comprising a frame strike side, a frame hinge side, and a frame sealing surface that extends up each of the frame strike and frame hinge sides. A threshold extends between the frame strike and frame hinge sides and includes a base secured to a floor surface and a threshold sealing surface. A door panel includes a panel bottom side, a panel strike side, a panel hinge side, and a continuous gasket extending continuously along the panel bottom side and up each of the panel strike and panel hinge sides. A door hinge couples the panel hinge side to the frame hinge side and facilitates hinged movement of the door panel between an open position and a closed position in which the gasket seals against the frame sealing surface and the threshold sealing surface in a liquid-tight manner.

1 . A pedestrian door system comprising:
 a door frame comprising a frame strike side, a frame hinge side, and a frame sealing surface that extends at least partially up each of the frame strike side and the frame hinge side;   a threshold configured to extend between the frame strike side and the frame hinge side, the threshold including a base configured to be secured to a floor surface and a threshold sealing surface, wherein the threshold has an overall height of no greater than ½ inch;   a door panel comprising a panel bottom side, a panel strike side, a panel hinge side, and a continuous gasket extending continuously along the panel bottom side and at least partially up each of the panel strike side and the panel hinge side; and   a door hinge configured to hingedly couple the panel hinge side of the door panel to the frame hinge side of the door frame and to facilitate hinged movement of the door panel relative to the door frame between an open position and a closed position in which the continuous gasket of the door panel seals against the frame sealing surface of the door frame and against the threshold sealing surface of the threshold in a liquid-tight manner.   
     
     
         2 . The pedestrian door system of  claim 1 ,
 wherein the door frame further comprises a frame top side, and the frame sealing surface extends along an entirety of the frame strike side, the frame top side, and the frame hinge side, and   wherein the door panel further comprises a panel top side, and the continuous gasket extends continuously along the entirety of the panel strike side, the panel top side, the panel hinge side, and the panel bottom side.   
     
     
         3 . The pedestrian door system of  claim 1 , wherein the continuous gasket extends between 3 feet and 8 feet up each of the panel strike side and the panel hinge side. 
     
     
         4 . The pedestrian door system of  claim 1 , wherein all portions of the threshold configured to extend at least ¼ inch above the floor surface have a rise:run ratio of no greater than 1:2. 
     
     
         5 . The pedestrian door system of  claim 1 , wherein the threshold sealing surface extends upwardly from the base by a vertical distance of no greater than ¼ inch. 
     
     
         6 . The pedestrian door system of  claim 5 , wherein the threshold sealing surface extends vertically from the base. 
     
     
         7 . The pedestrian door system of  claim 1 , wherein the overall height of the threshold is vertically adjustable. 
     
     
         8 . The pedestrian door system of  claim 1 , wherein the door panel further comprises a main panel and a door edge flange, the door edge flange extending outwardly from the main panel, wherein the continuous gasket is located adjacent to the door edge flange. 
     
     
         9 . The pedestrian door system of  claim 8 , wherein the main panel includes a dry side and a wet side, the door edge flange extending outwardly from the wet side of the main panel, and the continuous gasket extending from the door edge flange toward the dry side of the main panel. 
     
     
         10 . The pedestrian door system of  claim 9 , wherein the door edge flange includes a wet side, and wherein the wet side of the door edge flange and the wet side of the main panel form a continuous, uninterrupted planar surface. 
     
     
         11 . The pedestrian door system of  claim 10 , wherein the wet side of the main panel comprises a sheet of metal that is hemmed to create the door edge flange. 
     
     
         12 . The pedestrian door system of  claim 9 , wherein the wet side of the door edge flange and the wet side of the main panel are within 1/16 inch of flush with a wet side of the door frame when the door panel is in the closed position. 
     
     
         13 . The pedestrian door system of  claim 8 , wherein the door frame comprises a stop surface that is separate from the frame sealing surface, and wherein a dry side of the door panel is adjacent to the stop surface when the door panel is in the closed position. 
     
     
         14 . The pedestrian door system of  claim 8 , wherein the door hinge comprises a hinge leaf that extends beyond the door edge flange and attaches to the main panel. 
     
     
         15 . The pedestrian door system of  claim 1 , wherein the door hinge comprises a flexible hinge leaf. 
     
     
         16 . The pedestrian door system of  claim 1 , wherein the continuous gasket comprises a one-piece gasket. 
     
     
         17 . The pedestrian door system of  claim 1 , wherein the continuous gasket comprises multiple gasket segments contacting one another. 
     
     
         18 . The pedestrian door system of  claim 1 , wherein no gasket is attached to the threshold sealing surface. 
     
     
         19 . The pedestrian door system of  claim 1 , wherein the continuous gasket comprises a bulb-type gasket with holes defined in a wet side wall of the continuous gasket, the holes being configured to receive liquid and/or air into an interior space within the bulb-type gasket. 
     
     
         20 . The pedestrian door system of  claim 1 , wherein the door hinge is configured to facilitate hinged movement of the door panel relative to the door frame about a hinge axis that is located outwardly from an outermost extent of the door panel by at least ⅝ inch. 
     
     
         21 .- 33 . (canceled)