Air bag and method for making the air bag
Patent 5514431 Issued on May 7, 1996. Estimated Expiration Date: 
December 30, 2013. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.
December 30, 2013. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.Patent References 1625582 3051605 3491791 Heat transfer printing Medical bag and method for manufacturing the same Balloon with flat film valve and method of manufacture Patent #: 5248275 InventorAssigneeApplicationNo. 176124 filed on 12/30/1993US Classes:428/35.3, Elemental metal containing156/244.11, By extrusion156/277, With printing156/289, Utilizing parting or release material to prevent adhesion156/290, Bonding of facing continuously contacting laminae at spaced points only383/107, Specified seam structure427/250, Metal coating427/294, VACUUM UTILIZED PRIOR TO OR DURING COATING428/35.2, Nonself-supporting tubular film or bag (e.g., pouch, envelope, packet, etc.)428/35.8, Elemental metal containing (e.g., substrate, foil, film, coating, etc.)446/224Having check valveExaminersPrimary: Ball, Michael W.Assistant: Lorin, Francis J. Attorney, Agent or FirmForeign Patent References
International ClassesB32B 007/06B32B 031/12 B32B 031/30 AbstractAn air bag is made by bonding a pair of sheets to each other by heat-sealing with a releasing layer corresponding to a pattern of a number of cellular air chambers sandwiched therebetween. A check valve for air infusion, which is used for filling air in the air bag, is mounted in one of the air chambers. When air is infused into a space between either of a pair of sheets and the releasing layer through an air infusion port of the check valve, the releasing layer and the corresponding sheet are peeled from each other by the air pressure. As a result, the air chambers are formed between the two layers.Field of SearchWith printingUtilizing parting or release material to prevent adhesion Bonding of facing continuously contacting laminae at spaced points only By extrusion With printing Flexible food casing (e.g., sausage type, etc.) Elemental metal containing (e.g., substrate, foil, film, coating, etc.) Elemental metal containing Polymer or resin containing (i.e., natural or synthetic) Forming, or cooperating to form cells With heat sealable or heat releasable adhesive layer Ornamental design or indicia Single layer (continuous layer) INFLATABLE WALL DETAILS Specified seam structure Coating or lamination Having check valve Metal coating VACUUM UTILIZED PRIOR TO OR DURING COATING | |
