GENERAL UTILITY HEAVY DUTY POLYPROPYLENE BAGS

Brand	Owner	Address	Description
BIG D WHERE "D" MEANS DURABLE!	DALLCO INDUSTRIES, INC.	P.O. Box 2727 York PA 174022727	General utility heavy-duty polypropylene bags sold empty, for commercial use;
	Where the owner name is not linked, that owner no longer owns the brand

Technical Examples

An inflate/deflate valve of a heavy duty design for use during inflation of inflatable devices such as dunnage bags. Such dunnage bags are used in hostile or rough environments where when deflated the dunnage bags are stacked and compressed into storage drums where the inflate/deflate valves may be crushed or forced against the cuttable or ripable dunnage bag material. As a result, a novel and unique design is provided including a valve body, a spring, an optional washer, a spring retainer, a poppet, poppet seal and an o-ring.