Patent ID: 7896404
Filing Date: 2011-03-01
Classification: F16L

Abstract:
1. Apparatus for transitioning from an existing electrical nonmetallic tubing socket of one size to an electrical nonmetallic tubing socket of a smaller size, the existing socket having latch fingers for reception in an external circumferential groove of a first electrical nonmetallic tube that is closely receivable in the existing socket for locking reception therein, said apparatus comprising: a reducer fitting having generally cylindrical male and female opposite end portions; said male end portion having a cylindrical outer surface and a terminal end; a shoulder extending outwardly from said outer surface between said male and female end portions; a pair of axially-spaced first and second circumferential projections extending outwardly from said outer surface intermediate said terminal end and said shoulder; said second projection being located between said first projection and said shoulder; at least said second projection having a sloping cam surface that slopes outwardly from said outer surface in a direction away from said terminal end; said female end portion having a generally cylindrical electrical nonmetallic tubing socket therein that is smaller than the existing socket for receiving an end portion of a second electrical nonmetallic tube that is smaller than the first electrical nonmetallic tube; said male end portion being configured for locking reception in the existing electrical nonmetallic tubing socket by way of cooperation between at least one of said projections and the latch fingers on the existing socket; and said electrical nonmetallic tubing socket on said fitting being one size smaller than the existing electrical nonmetallic tubing socket.