Bag and bag making apparatus
AssigneeJohnsen & Jorgensen Jaypak Limited
InventorJohn Maloney
Life of this patent
Estimating the term…
Abstract
A mixing bag (4) comprising a mixing chamber in the form of a compartment (45), a pocket (42) in the bag having a mouth opening (44) so that it can be filled with liquid (72) to a predetermined volume. The pocket is easily ruptured when the mouth is closed to discharge the volume of liquid into the compartment for mixing with a material (70) in the compartment. During mixing the walls (46, 47) of the pocket about to serve as a nonreturn valve in the bag.
Claims23
A composite bag having an outer periphery including a top, bottom and two sides and being formed from flexible waterproof material, said bag comprising:
- (a) opposed outer walls forming an outer compartment and opposed inner walls forming an inner pocket which is disposed within the outer compartment,
- (b) the opposed inner walls being joined along the entire length thereof to the opposed outer walls forming a hermetically tight joint therealong to seal the inner pocket from the outer compartment,
- (c) the opposed outer walls being bonded together along the outer periphery thereof to form the outer compartment except for a shortened bonded section effective to form an open mouth leading to the inside of the inner pocket for receiving liquid (matter) therein,
- (d) the bonded outer periphery further including a material insertion opening along a portion of the outer periphery other than the top of the bag,
- (e) the material insertion opening being effective to be sealed after material has been inserted into the outer compartment through said insertion opening,
- (f) a portion of the inner pocket being frangible to allow the pocket to be ruptured by manual pressure to discharge the liquid from the inner pocket into the outer compartment after the material insertion opening has been sealed to mix the contents therein with the liquid,
- (g) the combination of said pocket, outer compartment and open mouth being effective to allow the pocket to remain empty and open to receive a measured amount of liquid fed through the open mouth by the user just before the time of rupture for effecting mixing between the liquid and material in the outer compartment,
- (h) the opposed inner walls forming the pocket are adapted to assume a face-to-face abutting relationship when the liquid has been discharged from the pocket into the outer compartment after rupture of the pocket so that the abutting faces are in a self-sealing position whereby the abutting faces serve as a non-return valve obstructing the passage of liquid and material to the open mouth, thereby retaining the contents during the mixing thereof by manipulation of the bag.
A composite bag having an outer periphery including a top, bottom and two sides and being formed from flexible waterproof film material, said bag comprising:
- (a) opposed outer walls forming an outer compartment and opposed inner walls forming an inner pocket which is disposed within the outer compartment,
- (b) the opposed inner walls being interposed between the outer walls of the compartment and being joined along their entire length thereof to respective said opposed outer walls to prevent material from entering the inner pocket from the outer compartment,
- (c) the opposed outer walls being bonded together along the outer periphery thereof to form the outer compartment except for a shortened bonded section effective to form an open mouth leading to the inside of the inner pocket for receiving liquid therein,
- (d) mixing material disposed in the compartment with the outer periphery being sealed to form a completed package ready for transportation and storage before any liquid is placed in the inner pocket,
- (e) a portion of the inner pocket being frangible so that when the ultimate user puts liquid matter into the inner pocket, the pocket may be ruptured by manual pressure to discharge said liquid matter into the mixing material of the outer compartment to form a mixture therewith,
- (f) the combination of said pocket, outer compartment and open mouth being effective to allow the pocket to remain empty and open to receive a measured amount of liquid fed through the open mouth by the user just before the time of rupture for effecting mixing between the liquid and material in the outer compartment.
Dependencies are inferred from the claim text.