The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Mar. 11, 1986
Filed:
Apr. 15, 1982
Eugene B Pemberton, Fairfield, OH (US);
Richard L Fahl, Cincinnati, OH (US);
Dover Corporation, Cincinnati, OH (US);
Abstract
A coupling apparatus specifically designed for an elbow of a fluid distribution system has a pair of rollers which are rotatable about first rotary axes which are movable with respect to the elbow and second rotary axes which move the first rotary axes in an arcuate path. The rollers selectively engage a locking groove of a second pipe section. The locking groove has arcuate portions with a radius equal to that of the rollers. The rollers are generally moved in unison but are permitted a small range of independent movement to insure locking of both rollers in the locking groove in the event of slight misalignments due to manufacturing tolerances.