Cap for sealing a bathtub overflow port for testing purposes

Abstract

A temporary closure for a bathtub overflow port, comprising placing on the outer end of a drain pipe extending through the overflow port a solid cap threaded on the outer end, with or without a sealing element on its inner surface; a cap with an outer face with an aperture thereon covered by a sealing diaphragm, or a solid plug screwed into a threaded interior of the outer end of the drain pipe.

What is claimed is:  
     
         1 . An overflow system for a bathtub which has a bottom, and adjacent side and endwalls, a drain port in the bottom, and overflow port in an endwall, with said overflow port being in communication with a vent pipe, comprising, 
 a drain pipe adapted to be in communication with said drain port and said overflow port,    said drain pipe having an inverted L-shape, including a horizontal leg extending into and through the overflow part of the bathtub, and a vertical leg extending downwardly for connection to a fluid drain system,    threads on the horizontal leg extending through the overflow port, and    a cap threadably mounted on an end of the horizontal leg extending through the overflow port,    the cap being of a material capable of sealing and closing the end of the horizontal leg when threaded against the end thereof.    
     
     
         2 . The device of  claim 1  wherein the cap has a circular planar end with a perimeter terminating in a threaded annular flange for interconnection with the threads on the horizontal leg.  
     
     
         3 . An overflow system for a bathtub which has a bottom, and adjacent side and endwalls, a drain port in the bottom, and overflow port in an endwall, with said overflow port being in communication with a vent pipe, comprising, 
 a drain pipe adapted to be in communication with said drain port and said overflow port,    said drain pipe having an inverted L-shape, including a horizontal leg extending into and through the overflow part of the bathtub, and a vertical leg extending downwardly for connection to a fluid drain system,    threads on the horizontal leg extending through the overflow port, and    a cap threadably mounted on an end of the horizontal leg extending through the overflow port,    the cap has a circular planar end with a perimeter terminating in a threaded annular flange for interconnection with the threads on the horizontal leg;    a circular sealing element on a face of the circular planar end of the cap being adjacent the end of the horizontal leg to seal the cap to the end of the horizontal leg.    
     
     
         4 . An overflow system for a bathtub which has a bottom, and adjacent side and endwalls, a drain port in the bottom, and overflow port in an endwall, with said overflow port being in communication with a vent pipe, comprising, 
 a drain pipe adapted to be in communication with said drain port and said overflow port,    said drain pipe having an inverted L-shape, including a horizontal leg extending into and through the overflow part of the bathtub, and a vertical leg extending downwardly for connection to a fluid drain system,    and a solid plug threaded into interior threads of the horizontal leg extending through the overflow port to close the end of the horizontal leg.    
     
     
         5 . An overflow system for a bathtub which has a bottom, and adjacent side and endwalls, a drain port in the bottom, and overflow port in an endwall, with said overflow port being in communication with a vent pipe, comprising, 
 a drain pipe adapted to be in communication with said drain port and said overflow port,    said drain pipe having an inverted L-shape, including a horizontal leg extending into and through the overflow part of the bathtub, and a vertical leg extending downwardly for connection to a fluid drain system,    threads on the horizontal leg extending through the overflow port, and    a cap threadably mounted on an end of the horizontal leg extending through the overflow port,    the cap having an opening in its circular planar end, with a thin sealing membrane secured to the cap and extending over the opening in the circular planar end.