Tube joints
OwnerGregory F. Duerinventor
Life of this patent
Estimating the term…
Abstract
Tubes are joined using a stud which supports locking elements inside the tube; a cleaner joint and a stronger one are achieved by a unique form of stud.
Claims4
Fastener means for joining two tubes in end-to-end butted relationship comprising a stud having an intermediate body portion and respective tapered end surfaces which enable the concave sides of a set of toothed locking elements of concave-convex cross section to be respectively nested against each end surface, said locking elements being so nested, and the body portion of said stud having a keying surface centered mid-way of the length to enable a complemental key surface of a jig to be separably keyed to the mid-section of the stud for supporting the inside diameter of respective tubes having their ends pressed against the opposed sides of said jig, and including an additional set of locking elements, means affording shanks outward of said tapered ends, and spacer sleeves adapted to be mounted on said shanks to space the sets of locking elements.
Tooling for joining two tubes in end-to-end butted relationship comprising a stud having a jig keying surface positioned mid-way of its length thereby defining supporting surfaces of equal length on opposite sides of said keying surface, shanks of reduced diameter extended outwardly at respective ends of the stud supporting toothed locking washers respectively engaged with the ends of the stud, and a jig having a bifurcation in which the keying surface is disposed for supporting the stud by the jig, and said bifurcation serving as an abutment for the adjacent ends of a pair of tubes fitted over said washers and said supporting surfaces.
Dependencies are inferred from the claim text.