Pouch with frangible seal formed by ultrasonic sealing and methods of forming thereof
AssigneePouch Pac Innovations, LLC
InventorR. Charles Murray
Life of this patent
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Abstract
A method and apparatus for ultrasonic welding a flexible pouch are disclosed. The apparatus includes a base having a top surface mounted extending at an angle from horizontal. An anvil is mounted to the base. A horn is mounted to move to and away from the anvil. A guide is provided for positioning the pouch on the base. A finger is movable to and away from the pouch and engages a lower portion of the pouch during welding.
Claims20
An apparatus for ultrasonic welding a flexible pouch, the apparatus comprising:
- a base having a top surface mounted extending at an angle from horizontal;
- an anvil mounted to the base;
- a horn mounted to move to and away from the anvil;
- a guide for positioning the pouch on the base;
- and
- a finger movable to and away from the pouch;
- wherein the finger engages a lower portion of the pouch during welding.
A method of sealing a flexible pouch having a fitment, the pouch containing a liquid, the method comprising the steps of:
- mounting an anvil at an angle;
- placing a filled pouch on the anvil;
- pressing a lower portion of the filled pouch;
- pressing a horn onto the pouch on a side opposite the anvil;
- and
- forming a seal ultrasonically.
A method of forming a frangible seal for a flexible pouch formed of flexible panels, the method comprising:
- overlaying two portions of the pouch;
- placing the overlaid portions between an anvil and a horn;
- and
- vibrating the overlaid portions to ultrasound frequency in a predefined range from the horn for a predetermined period of time in the range of 0.06 seconds to 0.1 seconds to form the frangible seal.
Dependencies are inferred from the claim text.