Bunghole cover

Abstract

Embodiments of a bunghole cover are disclosed. The bunghole cover may have a main body with a lower portion, and the lower portion may be configured to engage a bunghole of a storage drum. The bunghole cover may also have a sealing portion configured to substantially conform around one or more tubes inserted within the bunghole The bunghole cover may also have at least one connection mechanism configured to connect a first portion of the main body to a second portion of the main body.

1 . A bunghole cover comprising
 a main body with a lower portion, wherein the lower portion is configured to engage a bunghole of a storage drum;   a sealing portion configured to substantially conform around one or more tubes inserted within the bunghole; and   a first connection mechanism configured to connect a first portion of the main body to a second portion of the main body.   
     
     
         2 . The bunghole cover of  claim 1 , wherein the main body is a piece of flexible sheet material, the lower portion comprises an elastic cinch, and the first connection mechanism is a hook and loop material. 
     
     
         3 . The bunghole cover of  claim 2 , wherein the flexible sheet material is rubber-based. 
     
     
         4 . The bunghole cover of  claim 2 , wherein the flexible sheet material is vinyl. 
     
     
         5 . The bunghole cover of  claim 2 , further comprising a hook and loop closure strap attached to the sealing portion. 
     
     
         6 . The bunghole cover of  claim 1 , wherein
 the main body is a clamp;   the lower portion comprises an annular flange extending downward from the lower portion and is configured to engage a lip of the bunghole; and   the first connection mechanism is a pin that connects at least a first side flange of the first portion of the main body to a second side flange of the second portion of the main body.   
     
     
         7 . The bunghole cover of  claim 6 , wherein the clamp is injection molded plastic. 
     
     
         8 . The bunghole cover of  claim 6  wherein the sealing portion further comprises a first foam insert and a second foam insert. 
     
     
         9 . The bunghole cover of  claim 8 , wherein the first and second foam inserts comprise a chemically-resistant coating. 
     
     
         10 . The bunghole cover of  claim 8 , wherein the first and second foam inserts are formed by injection molding. 
     
     
         11 . The bunghole cover of  claim 6 , wherein the annular flange further comprises a lip extending radially inward. 
     
     
         12 . The bunghole cover of  claim 1 , wherein
 the main body is a sheet of nitrile;   the sealing portion is an upper portion of the main body; and   the first connection mechanism is an adhesive.   
     
     
         13 . The bunghole cover of  claim 12 , wherein the adhesive is a synthetic polymer. 
     
     
         14 . The bunghole cover of  claim 12  further comprising a pull-tab extending from an edge of the sheet. 
     
     
         15 . A bunghole cover, comprising
 a first and second foam insert, each with a top and a bottom;   wherein the first foam insert is a half-circle frustum that tapers from the top to the bottom on a first side of the first foam insert;   wherein the second foam insert is a half-circle frustum that tapers from the top to the bottom on a first side of the second foam insert; and   wherein the first and second inserts are configured to jointly engage a bunghole of a storage drum near the tops of the first and second inserts and surround one or more tubes inserted through the bunghole.   
     
     
         16 . The bunghole cover of  claim 15 , wherein the first and second foam inserts comprise a chemically-resistant coating. 
     
     
         17 . The bunghole cover of  claim 15 , wherein the first and second foam inserts are injection-molded. 
     
     
         18 . A method of covering a bunghole, comprising
 engaging a sidewall of the bunghole with a lower portion of a bunghole cover;   substantially sealing one or more tubes inserted within the bunghole with the bunghole cover;   connecting a first portion of the bunghole cover to a second portion of the bunghole cover.   
     
     
         19 . The method of  claim 18 , wherein the bunghole cover comprises a flexible sheet material. 
     
     
         20 . The method of  claim 18 , wherein the bunghole cover comprises an injection molded plastic clamp.