Rupturable packages
AssigneeJohn P. Glass
InventorEdward F. Hollander, Jr.
Life of this patent
Estimating the term…
Abstract
A package comprising a cylindrical plastic tube closed at each end by an ultrasonic band seal. The seal at one end has a sealed region which is narrower than any portion of the other seal whereby squeezing of the package produces an immediate one-shot dispensing of liquid contained therein by causing rupture of the narrow region of the seal. Various package forms include perpendicularly arranged bands to provide a tetrahedral shape, a tab extending beyond one seal to provide identification of the contents of the package, notched seals providing a tear open package, and a multiple package construction in which one fluid containing tube is contained within another.
Claims4
A package comprising a cylindrical tube of flexible material, a first end of said tube being closed by a first ultrasonic seal extending transversely across the tube, a second end of said tube being closed by a second ultrasonic seal extending transversely across the tube, said tube providing an internal chamber between said seals for containing a product and said second seal having a portion narrower than any portion of the first seal for rupturing under pressure for the dispensing of the product only through said second end of the tube, and a tab extending beyond one of said seals, said tab consisting of an open extension of said tube, and a plurality of notches formed in the open edge of said extension providing a code to identify the contents of the package.
A package comprising a cylindrical tube of flexible material, a first end of said tube being closed by a first ultrasonic seal extending transversely across the tube, a second end of said tube being closed by a second ultrasonic seal extending transversely across the tube, said tube providing an internal chamber between said seals for containing a product and said second seal having a portion narrower than any portion of the first seal for rupturing under pressure for the dispensing of the product only through said second end of the tube, and a second cylindrical tube extending from said second seal, the extended end of said second tube being closed by a third ultrasonic seal extending transversely across said second tube and having a portion of its width intermediate the width of the first and second seals for rupturing under pressure substantially greater than the pressure under which the second seal ruptures.
Dependencies are inferred from the claim text.