Patent ID: 6722517
Filing Date: 2004-04-20
Classification: B65D,Y10T

Abstract:
A container closure device comprising:A) a base comprising: i) an annular upper portion; and ii) a lower portion defining a gap between said annular upper portion and said lower portion; said gap being divided into a recess extending into said annular upper portion and a lower gap portion; B) a pressure plate contained in said gap and having: i) an upper surface; and ii) a lower surface bearing a pliant sealing surface; C) a cam proximate the upper surface and comprising: i) an eccentric cam body; ii) a longitudinal cam shaft having opposing ends; and iii) a cam lever having an associated eccentric cam body and capable of rotating the eccentric cam body to cause different portions of the eccentric cam body to contact the pressure plate; D) a mechanism for engaging said opposing ends and allowing rotational movement of the cam lever and can body; and E) a radially compressible spacer having opposed spacer ends in said gap between said pliant sealing surface and said lower portion to retain said pressure plate and said pliant sealing surface in said gap but at a distance from said lower portion; said lower gap portion being; a) of a thickness smaller than the sum of the thicknesses of said pressure plate, said pliant sealing surface and said spacer; and b) of a thickness greater than the sum of the thicknesses of said pressure plate and said resilient surface; and said radially compressible spacer being capable of removal from said gap by radial compression thereof by the application of pressure to said spacer opposed ends.