Tube cap

  • US 5,722,562 A
  • Filed: 03/28/1996
  • Issued: 03/03/1998
  • Est. Priority Date: 03/28/1996
  • Status: Expired due to Term
First Claim
Patent Images

1. A closure cap for a tube, said tube having a tube wall and a tube end, said tube end being of a single thickness of said tube wall, said cap comprising a skirt which, when installed on said tube, extends from the end of said tube along the outside of said tube wall and is substantially in face-to-face engagement with the outer surface of said tube wall, said cap further having an end closure which extends across the end of the tube and closes off the tube, an inner flange integral with said skirt and with said end closure, said inner flange being concentric with said skirt and being substantially parallel to said skirt so as to receive said single thickness of said tube wall therebetween, a wall integral with the inner end of said inner flange and integral with said end closure for connecting the inner end of said inner flange and said end closure, and a flexible connection between said skirt and said inner flange which permits flexing of said inner flange relative to said skirt upon installation of said cap on said tube thereby to enable installation of said cap on said tube substantially without deformation of said tube, said wall applying a radially outward biasing force on said inner flange thereby to grip said tube between said inner flange and said skirt so as to hold said cap on said tube.

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