Air packaging device product and method for forming the product
OwnerJiaying Zhang, Yaopeng Zhanginventors
Life of this patent
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Abstract
An air packaging device includes two layers of thermoplastic films, which form a sealable space where air is filled after first and second steps of heat-sealing process. The sealable space includes a number of independent sealed air chambers and a main air passage channel. The main channel has an air inlet. Each sealed air chamber is connected with the main channel by at least one one-way valve each including at least two layers of plastic films. At least two one-way valves are installed inside of the air chambers. This air packaging device increases the cushioning protection where the protection is most needed, but can reduce air chamber dimension at less important locations in order to reduce the volumetric size and, hence, reduce the shipping cost.
Claims25
A method of producing an air packaging device, comprising the steps of:
- (a) providing at least two layers of films;
- (b) heat sealing said films to form a semi-finished product having a space defined between said two films for storing air, said space having a plurality of air chambers with a plurality of one-way valves;
- (c) heat sealing said semi-finished product to further divide at least one of said air chambers, which has two or more one-way valves thereat, into two or more independent and small-diameter air chambers to form a finished products, wherein at least one of said air chambers has a diameter larger than said other air chambers to form a larger air chamber which has at least two said one-way valves which make said larger air chamber easy to fill with air, wherein each of said independent small-diameter air chambers has at least one said one-way valve communicating said independent small-diameter air chamber;
- wherein the step (c) further comprises a step of folding said semi-finished product and heat sealing along at least a heat sealing line to form a bag having a receiving cavity and an opening, wherein said receiving cavity defines two side air chambers and two middle air chambers between said two side air chambers, wherein two or more of said independent small-diameter air chambers form each of said side air chambers of said receiving cavity, wherein two or more of said independent large-diameter air chambers form each of said middle air chambers between said two side air chambers.
A method of producing an air packaging device, comprising the steps of:
- (a) providing at least two layers of films;
- (b) heat sealing said films to form a semi-finished product having a space defined between said two films for storing air, said space having a plurality of air chambers with a plurality of one-way valves;
- and
- (c) heat sealing said semi-finished product to further divide at least one of said air chambers, which has two or more one-way valves thereat, into two or more independent and small-diameter air chambers to form a finished products, wherein at least one of said air chambers has a diameter larger than said other air chambers to form a larger air chamber which has at least two said one-way valves which make said larger air chamber easy to fill with air, wherein each of said independent small-diameter air chambers has at least one said one-way valve communicating said independent small-diameter air chamber, wherein the step (c) further comprises a step of folding said semi-finished product and heat sealing along at least a heat sealing line to form a bag having a receiving cavity and an opening, wherein said receiving cavity defines two side air chambers and two middle air chambers between said two side air chambers, wherein two or more of said independent large-diameter air chambers form each of said side air chambers of said receiving cavity, wherein two or more of said independent small-diameter air chambers form each of said middle air chambers between said two side air chambers.
Dependencies are inferred from the claim text.