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| Filler for inaccessible batteries |
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| Resealable vent valve for containers such as batteries |
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| Gas phase free liquid chlorine electrochemical systems |
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Method of lining container closures
| Details |
Inventors: Debenham, Michael;
Assignee: The Broken Hill Proprietary Company, Limited (Melbourne, AU)
Primary Examiner: Kaplan; Morris
Assistant Examiner:
Attorney, Agent or Firm: Murray and Whisenhunt
This specification disclosed a method of and apparatus for the application of sealant gasketing or protective material to a can end or to other container members in which a transfer head having a transfer face in the shape of the container member area to be covered by the sealant is covered with sealant and the container member brought into contact with at least the sealant on the transfer face to achieve transfer of the sealant to the container member. In one form the transfer head has a passage opening to the transfer face through which sealant is pumped to cover the transfer face. In another form the transfer head is arranged to be immersed in a tank of sealant to cover the transfer face with sealant. |
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DETAILED DESCRIPTION I claim: 1.
A method of applying a substantially uniform amount of sealant to a container member comprising continuously supplying an amount of sealant in excess of that required to cover an area of the container member to an upward facing sealant transfer face having at least two sides and a configuration corresponding to said area, removing said excess sealant from at least two sides of said transfer face to provide a substantially uniform amount of sealant available to be applied to said container member, and causing contact between said container member and said sealant on said transfer face to cover said area of said container member with the substantially uniform amount of sealant.
2.
Method according to claim 1, wherein said sealant is pumped to said sealant transfer face to form an enlarged meniscus of sealant on said face.
3.
Method according to claim 1, wherein said container member is brought into close proximity with said sealant transfer face but not in contact therewith to transfer a major proportion of the sealant on said face to said container member while leaving said face wet with sealant.
4.
Method of claim 1, wherein said excess sealant is removed by permitting same to flow away from said transfer face.
5.
Method according to claim 4, wherein said sealant covers an annular area of said sealant transfer face, and said excess sealant is removed from outside of and inside of the annular area covered by said sealant.
6.
Method of claim 5, wherein said container member is located above said sealant transfer head and in alignment therewith, and said contact is caused by moving said container member downward into contact with said sealant.
7.
A method of applying a substantially uniform amount of sealant to the edges of push-in easy-opening closures in can ends, comprising continuously supplying an amount of sealant in excess of that required to cover said edges to an upward facing sealant transfer face having at least two sides and a configuration generally corresponding to the area, including said edges, of a can end to be covered, periodically contacting the sealant on the transfer face with a can end to cover said area of the can end with a substantially uniform amount of sealant, and removing excess sealant from at least the two sides of the transfer face at least during periods between contact of said sealant with successive can ends in order to make a substantially uniform amount of sealant available for each can end
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