Abstract: The present invention is directed to a safety release break-away buckle designed for but not limited to pet collars and large animal halters, to separate at a predetermined magnitude of tension based upon a fraction of the animal's weight or strength, should the animal's collar or halter become entangled on a protrusion as to endanger the animal's health of life, as by strangulation, injury or entrapment. The release is obtained by pulling a lug through a restrictive pair of jaws. The safety release break-away buckle can also be the primary coupling device in a collar or halter.

Abstract: Disclosed is a threaded pipe connection. The connection includes tubular externally threaded male members and a tubular internally threaded female coupling threadedly engaged with the male members. The male members include a continuous thread having a first preferably straight portion and a second tapered portion. The thread includes a form having stabbing and load flanks and an axially extending crest and root. Throughout the thread, lead as measured along the load flanks is constant and the length of the crest and depth of the load flanks are constant.

Abstract: Disclosed is a threaded pipe connection. The connection includes tubular externally threaded male members and a tubular internally threaded female coupling threadedly engaged with the male members. The male members include a continuous thread having a first preferably straight portion and a second tapered portion. The thread includes a form having stabbing and load blanks and an axially extending crest and root. Throughout the thread, lead as measured along the load flanks is constant and the length of the crest and depth of the load flanks are constant.