Overflow assembly for bathtubs

Abstract

An overflow assembly for a bathtub includes an overflow drain pipe which has a head, and the head has a flange extending radially therefrom which contacts the inside of the wall of the bathtub. A sleeve extends from the end face of the head and extends through an install hole of the wall of the bathtub. The head has an opening which communicates with the overflow drain pipe. An adapter is connected to the sleeve and secured to the head by bolts. A ring is engaged with the stepped outer surface of the adapter. A cap is mounted to the adapter, and the ring snugly contacts the inner surface of the cap.

What is claimed is: 
     
         1 . An overflow assembly connected to a bathtub which includes an overflow drain pipe, the overflow assembly comprising:
 a head adapted to be connected to the overflow drain pipe, the head having a flange extending radially therefrom and a sleeve extending from an end face of the head, an opening defined in the head and adapted to communicate with the overflow drain pipe;   an adapter being a circular part with a stepped outer surface, an inner surface of the adapter being matched with an outer surface of the sleeve, a ring engaged with the stepped outer surface of the adapter, the adapter connected to the head by bolts, and   a cap mounted to the adapter, the ring snugly contacting an inner surface of the cap.   
     
     
         2 . The overflow assembly as claimed in  claim 1 , wherein the adapter has a groove defined in the stepped outer surface thereof, the ring is engaged with the groove. 
     
     
         3 . The overflow assembly as claimed in  claim 1 , wherein the adapter has two lugs extending inward from an inner periphery thereof, each lug has a hole, the bolts extend through the holes and connected to the head. 
     
     
         4 . The overflow assembly as claimed in  claim 1 , wherein a plate is connected to an inner periphery of the adapter, the plate has a central hole and two slots between which the central hole is located so as to be adapted to be connected to the head of different sizes. 
     
     
         5 . The overflow assembly as claimed in  claim 1 , wherein the ring is a resilient ring. 
     
     
         6 . An overflow assembly connected to a bathtub which includes an overflow drain pipe, the overflow assembly comprising:
 a head adapted to be connected to the overflow drain pipe, the head having a flange extending radially therefrom and a sleeve extending from an end face of the head, an opening defined in the head and adapted to communicate with the overflow drain pipe;   an adapter being a circular part with an outer surface, an engaging section formed at the outer surface of the adapter, the engaging section having a tapered outer surface, an inner surface of the adapter being matched with an outer surface of the sleeve, the adapter connected to the head by bolts, and   a cap mounted to the outer surface of the adapter, the cap having a tapered inner surface which is matched with the tapered outer surface of the engaging section of the adapter.   
     
     
         7 . The overflow assembly as claimed in  claim 6 , wherein the adapter has two lugs extending inward from an inner periphery thereof, each lug has a hole, the bolts extend through the holes and connected to the head.