Thread making fitting for unthreaded conduit
AssigneeI-T-E Imperial Corporation EFCOR Division
InventorsPadej Gajajiva, John Stokes
Life of this patent
Estimating the term…
Abstract
An elongated fitting, which forms a thread as it is screwed onto the end of a conduit, has an internally threaded tubular portion at one end which receives the conduit. A stem portion on the opposite end permits coupling of the fitting to external parts. An intermediate portion is provided for rotating the fitting relative to the conduit. A longitudinal slot axially extends along the wall of the tubular portion to permit visual inspection of the amount of conduit inserted in the fitting and for lowering the tightening torque required for forming the threads on the conduit.
Claims5
An elongated fitting for forming threads onto an end of a conduit, comprising:
- a tubular portion at one end of the fitting having an internal thread and adapted to receive the end of the conduit;
- said tubular portion being provided with slot means to allow outward transverse expansion of said tubular portion for reducing tightening torque between said tubular portion and the conduit, and for permitting visible inspection of the conduit when inserted in said tubular portion;
- a stem portion on an opposite end of the fitting adapted to couple said fitting to external parts;
- an intermediate portion providing means for rotating said fitting relative to the conduit, to thereby provide the threads on the end of the conduit which is inserted into the tubular portion;
- said slot means including a longitudinal slot axially extending in a path from an outer end of said tubular portion to a spaced distance from said intermediate portion along a wall of said tubular portion, said slot extending transversely through said wall for entire length of said path to permit said expansion;
- a transverse wall section being provided within said tubular portion at one end of said internal thread adjacent to said intermediate portion for providing a stop to the inserted conduit;
- and
- said slot being axially spaced from said stop.
Dependencies are inferred from the claim text.