초록 ▼

The invention comprises a metal push-in tube fitting and a release tool. The metal tube fitting includes a body with a tube-receiving cavity in one end. A tube support forms the inside of the cavity and supports the tube against inward movement. A gripper ring having a radially inner gripping edge i

The invention comprises a metal push-in tube fitting and a release tool. The metal tube fitting includes a body with a tube-receiving cavity in one end. A tube support forms the inside of the cavity and supports the tube against inward movement. A gripper ring having a radially inner gripping edge is disposed in the cavity and grips a tube inserted in the cavity through the ring. A retainer holds the gripper ring in the body of the tube fitting. A release tool is provided for releasing a tube which is held by the gripper ring of the fitting. The release tool has a thin, cylindrical section portion which can be received about a tube held in the fitting and then inserted in the fitting to raise the gripper and release the tube.

대표청구항 ▼

An improved push-in tube fitting and release tool for releasably receiving and retaining a tube, comprising: a metal body having: a first end for connection to a fluid conduit; a second end for connection to a tube; a cavity disposed in second end of said body for receiving a tube therein; a cylindr

An improved push-in tube fitting and release tool for releasably receiving and retaining a tube, comprising: a metal body having: a first end for connection to a fluid conduit; a second end for connection to a tube; a cavity disposed in second end of said body for receiving a tube therein; a cylindrical tube support disposed within said tube receiving cavity for extending within and supporting a tube received in said cavity; and a fluid conduit extending through said body from said first end of said body through said tube support; a split gripper ring disposed in said cavity of said body radially outside of said tube support, said ring having a sharp, radially inner edge which bites into a tube once it is inserted in said cavity and through said ring; said split gripper ring provided with a cylindrical inner surface axially spaced from and having a larger inner diameter than said inner edge and oriented toward said first end and being connected to said inner edge by an inclined surface; means for retaining said gripper ring in said cavity; and a release tool free of attachment to said body having a thin, cylindrical-section portion for being inserted between said gripper ring inner cylindrical surface and a tube gripped by said gripper ring to engage said inner cylindrical surface and to expand said gripper ring so that a tube can be thereby released from said gripper ring and removed from said tube fitting, said release tool having a length such that, when fully inserted, said cylindrical section portion does not extend between said sharp, radially inner edge of said ring and a tube retained in said body.