METAL JOINT RESTRAINTS

Brand	Owner	Address	Description
BUILT STRONGER. LASTS LONGER.	EBAA Iron, Inc.	702-30 County Road Eastland TX 76448	Metal joint restraints in the nature of metal pipe fittings, metal pipe couplings, and metal pipe gaskets used for joining and restraining ends of pipelines; metal joint restraint harnesses for pipelines; flexible metal expansion joints for pipelines; ball joints for pipelines; metal retainer glands in the nature of pipe connectors used in mechanical pipe restraining joints for connecting ends of liquid conduit pipe together; Metal flange adapter assemblies comprising metal gasket rings, restraint ring gaskets, and screw driven wedges in the nature of restraint rings incorporating wedges that grip pipes, for use on plain end pipe; metal assemblies for protection from over-insertion of PVC pipe joints, comprised of springs and metal stop rings;
	Where the owner name is not linked, that owner no longer owns the brand

Technical Examples

In a first embodiment a spark plug satisfying the relations: t?0.3 mm and St/Sw?7 in which t is the axial-direction shortest distance between a leading end surface 41a of a precious metal tip 41 and a joint portion 43, St is the surface area of the precious metal tip 41 and a joint portion 43 between the precious metal tip 41 and the ground electrode body 4a, and Sw is the area of the joint portion 43 between the ground electrode body 4a and the precious metal tip 41. In a second embodiment, the spark plug satisfies the relations t?0.3 mm and La>Lb; and in a third embodiment the spark plug satisfies the relations t>T and La>Lb, where T, La and Lb are as defined in the specification. The relation t?0.3 mm is specific to the first and second embodiments, and the relation St/Sw?7 is specific to the first embodiment only.