WAFER CHECK VALVES AS PARTS

Brand	Owner	Address	Description
PRINCE	KEYSTONE INTERNATIONAL HOLDINGS CORP.	9600 W. GULF BANK DRIVE HOUSTON TX 77240	wafer check valves as parts of machines;wafer check valves of metal;
	Where the owner name is not linked, that owner no longer owns the brand

Technical Examples

A check valve for use in an air-packing device has a simple structure and promotes to easily inflate all of the air cells of the air-packing device with a relatively lower pressure. The check valves can be easily attached to any locations of the air-packing device. The check valves are formed when a check valve film is attached to one of the first and second thermoplastic films. Peeling agents of predetermined pattern are applied on the check valve film which prevents heat-sealing between the first and second thermoplastic films for air tightly separating two adjacent air containers. The check valve is configured by an air flow maze portion having a zig-zag air passage and a common air duct portion which provides the air to the air flow maze portion of a current air container as well as to the air flow maze portion of a next air container.