Freezer bags with integral closure means
OwnerJan Folkmarinventor
Life of this patent
Estimating the term…
Abstract
A bag useful for forming ice cubes or the like has a pouch-like fill chamber which may extend across the whole of the width of the bag. The fill chamber has an outlet opening connecting to the interior of the bags which comprises at least two passageways in parallel relationship. An internal seal is provided to isolate the fill chamber from the interior of the bag. The seal may comprise a zip type fastener, or a simple flap valve disposed in each of the passageways. The arrangement facilitates the handling of the bags to permit larger bags that may be filled more rapidly and with little or no air trapped within the bag, in comparison to other known bags.
Claims18
A bag for freezing liquids comprising a pair of similar flexible walls each having a rectangular shape with an upper margin extending in a transverse direction, a lower margin, and side margins extending therebetween, arranged in mutually confronting relationship and sealed together about said lower margin and said side margins;
- upper portions of said bag walls together defining a fill chamber having an entrance thereto in communication with the exterior of said bag and an outlet opening thereto disposed beneath said entrance in communication with the interior of said bag, characterized wherein said outlet opening comprises at least two passageways disposed in parallel relationship, and formed by interconnecting opposed wall portions of said bag;
- said passageways serving to constrain the outward movement of said walls of said bag;
- and
- means disposed within the chamber for isolating said outlet opening from said entrance.
A bag for freezing liquids as defined in 13 wherein said walls are joined together in the interior of said bag by an open grid of welds to form ice cube compartments.
Dependencies are inferred from the claim text.