Stainless steel container and plastic cap with finger loop and stainless steel plug

Abstract

A plastic cap with inside threads removably attaches to a stainless steel container with mating rolled steel external threads. A center stainless steel plug inside the cap fits down into the container. A silicone O-ring on the cap creates a watertight seal with the top of the container. The contents of the stainless steel container only contact the stainless steel plug and never reach the plastic portion of the cap. A finger loop is built into the outer periphery of the plastic cap for ease in carrying or suspending the container.

1 . A cap device for a stainless steel container having external threads, the device comprising:
 a substantially plastic cap comprising a top surface having and a downwardly extending peripheral annular rim around the top surface, the annular rim having internal threads inside the annular rim for engaging mating external threads around a mouth of a stainless steel container to secure them together and cover the stainless steel container with the cap;   a stainless steel plug secured to an underside of the cap centered under the cap top surface and spaced apart from the annular rim so that with the cap screwed onto the stainless steel container the stainless steel plug extends down into the stainless steel container thereby preventing contact of liquid in the stainless steel container with the plastic of the cap;   a silicone O-ring on the cap sealing the top of the rim of the container so that the contents of the stainless steel container only contact the stainless steel plug and never contact any plastic surfaces of the cap.   
   
   
       2 . The device of  claim 1  wherein the cap further comprises a rigid finger grip loop extending upwardly and outwardly from the top surface of the cap for holding and hanging the cap with the cap attached to and covering a stainless steel container for carrying and storing the covered stainless steel container by the loop. 
   
   
       3 . The device of  claim 1  further comprising means for securing the cap to the container with the cap removed from covering the container. 
   
   
       4 . The device of  claim 3  wherein the means for securing the cap to the container with the cap removed from covering the container comprises a flexible cord looped around an outer surface of a neck of the container and looped around a capped pin extending from the cap. 
   
   
       5 . The device of  claim 1  wherein the stainless steel plug is recessed inside a bottom edge of the rim of the cap so that when the cap is placed on a flat surface with the bottom edge of the rim contacting the flat surface the stainless steel plug does not contact the flat surface thereby preventing contamination of the stainless steel plug. 
   
   
       6 . The device of  claim 1  wherein the stainless steel container comprises a bottle. 
   
   
       7 . The device of  claim 1  wherein the stainless steel container comprises a bowl. 
   
   
       8 . The device of  claim 7  wherein the cap of the stainless steel bowl is flat on top so that a number of covered stainless steel bowls of diminishing sizes can fit inside one another in a nested array for storage and transportation of empty stainless steel bowls. 
   
   
       9 . A stainless steel externally threaded container and a mating internally threaded plastic cap having an internal stainless steel plug, comprising in combination:
 a wide mouth stainless steel container having roll formed stainless steel outside threading around an outside perimeter of the mouth;   a substantially plastic cap comprising a top surface having and a downwardly extending peripheral annular rim around the top surface, the annular rim having internal threads inside the annular rim for engaging the mating external threads around the mouth of the stainless steel container to secure them together and cover the stainless steel container with the cap;   a stainless steel plug secured to an underside of the cap centered under the cap and spaced apart from the annular rim so that with the cap screwed onto the stainless steel container the stainless steel plug extends down into the stainless steel container thereby preventing contact of liquid in the stainless steel container with the plastic of the lid;   a silicone O-ring on the cap sealing the top of the rim of the threaded portions of the container so that the contents of the stainless steel container only contact the stainless steel plug and never reach the plastic threaded ring.   
   
   
       10 . The combination of  claim 9  wherein the cap further comprises a rigid finger grip loop extending upwardly and outwardly from the top surface of the cap for holding and hanging the cap with the cap attached to and covering a stainless steel container for carrying and storing the covered stainless steel container by the loop. 
   
   
       11 . The combination of  claim 9  further comprising means for securing the cap to the container with the cap removed from covering the container. 
   
   
       12 . The combination of  claim 11  wherein the means for securing the cap to the container with the cap removed from covering the container comprises a flexible cord looped around an outer surface of a neck of the container and looped around a capped pin extending from the cap. 
   
   
       13 . The combination of  claim 9  wherein the stainless steel plug is recessed inside a bottom edge of the rim of the cap so that when the cap is placed on a flat surface with the bottom edge of the rim contacting the flat surface the stainless steel plug does not contact the flat surface thereby preventing contamination of the stainless steel plug. 
   
   
       14 . The combination of  claim 9  wherein the stainless steel container comprises a bottle. 
   
   
       15 . The combination of  claim 9  wherein the stainless steel container comprises a bowl. 
   
   
       16 . The combination of  claim 15  wherein the cap of the stainless steel bowl is flat on top so that a number of covered stainless steel bowls of diminishing sizes can fit inside one another in a nested array for storage and transportation of empty stainless steel bowls.