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US 11,752,703 B2Granted
Method and apparatus for making bag using ultrasonic sealing
AssigneeCMD Corporation
InventorsChristopher L. White, Gregory J. Prellwitz, Timothy J. Rymer, Curt A. Frievalt
Life of this patent
Estimating the term…
Abstract
A method and apparatus for making bags or pouches is disclosed. An ultrasonic sealer may be used to form the seals. Sealing patterns may be used to provide a desired strength profile.
Claims23
A machine for creating bags from a web, the machine comprising:
- an input section configured to receive the web;
- and
- a sealing section configured to impart a seal to the web, wherein the sealing section includes a rotary ultrasonic sealer having a rotating anvil and a rotating horn;
- wherein the rotary ultrasonic sealer is configured to seal at least a portion of the web to itself to thereby create the seal that at least partially forms a bag;
- and
- wherein the anvil has an anvil surface and a sealing pattern, the sealing pattern having a shape with a sealing surface, a side surface, and a rounded edge between the sealing surface and the side surface defining a smooth transition from the sealing surface to the side surface.
3 more elements
A machine for creating bags from a web, the machine comprising:
- an input section configured to receive the web;
- and
- a sealing section configured to impart a seal to the web, wherein the sealing section includes a rotary ultrasonic sealer having a rotating anvil and a rotating horn;
- wherein the rotary ultrasonic sealer is configured to seal at least a portion of the web to itself to thereby create the seal that at least partially forms a bag;
- wherein the anvil has an anvil surface and a sealing pattern, the sealing pattern having a dot with a sealing surface, a side surface, and a rounded edge between the sealing surface and the side surface defining a smooth transition from the sealing surface to the side surface;
- and
- wherein the sealing pattern further having a shape with a sealing surface, a side surface, and a rounded edge between the sealing surface and the side surface defining a smooth transition from the sealing surface to the side surface.
4 more elements
A method for creating bags from a web, the method comprising:
- feeding the web to a sealing section;
- and
- sealing the web by applying ultrasonic energy using a sealing pattern, the sealing pattern is on an anvil having an anvil surface and the sealing pattern has a shape with a sealing surface, a side surface, and rounded edge between the sealing surface and the side surface defining a smooth transition from the sealing surface to the side surface.
A machine for creating bags from a web, the machine comprising:
- an input section configured to receive the web;
- and
- a sealing section configured to impart a seal to the web, wherein the sealing section includes a rotary ultrasonic sealer having a rotating anvil with an anvil surface, a rotating horn, and a sealing pattern having a shape with a sealing surface, a side surface, and a rounded edge between the sealing surface and the side surface defining a smooth transition from the sealing surface to the side surface, wherein the rotary ultrasonic sealer is configured to seal at least a portion of the web to itself to thereby create a seal that at least partially forms a bag.
Dependencies are inferred from the claim text.