Method and Apparatus for Filtrate Storage Handling

Abstract

A method of removing a filtrate storage bottle from a water bath includes inserting at least two finger underneath a radially protruding lip of a filtrate storage bottle sealing cap and raising the at least two fingers to lift the bottle from the water bath. A side wall portion of the filtrate storage bottle sealing cap is smaller in perimeter than a circle surrounding the radially protruding lip. The cap creates a liquid tight seal with the filtrate storage bottle.

1 . A storage bottle sealing cap comprising:
 an upper portion having a top surface and a radially protruding lip;   a side wall portion connected to the upper portion, the side wall portion having an outer surface with a smaller perimeter than the radially protruding lip and an inner surface including a thread forming a helical ridge; and   a plurality of ribs having a concave profile, the plurality of ribs connected to the sidewall portion and the radially protruding lip.   
     
     
         2 . A sealing cap according to  claim 1 , wherein the outer edge includes surface ridges thereon. 
     
     
         3 . A sealing cap according to  claim 1 , further comprising a sealing ring extending from a bottom surface of the upper portion. 
     
     
         4 . A sealing cap according to  claim 1 , wherein the outer surface of the side wall portion decreases in perimeter away from the upper portion. 
     
     
         5 . A sealing cap according to  claim 1 , wherein the outer surface of the side wall portion concaves radially inward. 
     
     
         6 . A sealing cap according to  claim 5 , wherein a section of the side wall outer surface has a constant perimeter. 
     
     
         7 . A sealing cap according to  claim 1 , wherein the top surface of the upper portion is flat. 
     
     
         8 . A sealing cap according to  claim 1 , wherein the top surface of the upper portion is specially adapted to receive labeling information. 
     
     
         9 . A sealing cap according to  claim 1 , wherein the plurality of ribs has a concave profile. 
     
     
         10 . A liquid filtration kit comprising:
 a reservoir,   a filtrate storage bottle;   a filter for use in between the reservoir and the filtrate storage bottle; and   a filtrate storage bottle sealing cap including:
 an upper portion having a top surface and a radially protruding lip comprising an outer edge; and 
 a side wall portion connected to the upper portion, the side wall portion having an outer surface with a smaller perimeter than the radially protruding lip. 
   
     
     
         11 . A liquid filtration kit according to  claim 10 , wherein the outer edge includes surfaces ridges thereon. 
     
     
         12 . A liquid filtration kit according to  claim 10 , further comprising:
 a vacuum collar, for coupling a vacuum source such that a pressure differential is created that draws a sample from the reservoir through the filter and into the filtrate storage bottle.   
     
     
         13 . A filtrate storage system comprising:
 a filtrate storage bottle; and   a filtrate storage bottle sealing cap characterized by:
 an upper portion having a top surface and a radially protruding lip comprising an outer edge; and 
 a side wall portion connected to the upper portion, the side wall portion having an outer surface with a smaller perimeter than the radially protruding lip. 
   
     
     
         14 . A filtrate storage system according to  claim 13 , wherein the outer edge includes surface ridges thereon. 
     
     
         15 . A filtrate storage system according to  claim 13 , wherein the outer surface of the side wall portion decreases in perimeter away from the upper portion. 
     
     
         16 . A filtrate storage system according to  claim 13 , wherein the outer surface of the side wall portion concaves radially inward. 
     
     
         17 . A filtrate storage system according to  claim 16 , wherein a section of the side wall outer surface has a constant perimeter. 
     
     
         18 . A filtrate storage system according to  claim 13 , wherein the top surface of the upper portion is specially adapted to receive labeling information. 
     
     
         19 . A filtrate storage system according to  claim 13 , further comprising a plurality of ribs connected to the sidewall portion and the radially protruding lip. 
     
     
         20 . A filtrate storage system according to  claim 13 , further comprising a sealing ring extending from a bottom surface of the upper portion.