Fitting subassembly with retained ferrule
AssigneeSwagelok Company
InventorsDale C. Arstein, Cal R. Brown, Mark A. Clason, Peter C. Williams
Life of this patent
Estimating the term…
Abstract
A fitting subassembly includes a threaded fitting nut, a ferrule, and a retaining member. The fitting nut includes a radial drive surface and an interior wall defining a socket, with the ferrule at least partially disposed in the socket. The retaining member is separate from and retained in a recess in the fitting nut. The retaining member retains the ferrule with the fitting nut when the retaining member is in a first position prior to the fitting nut being assembled with the fitting body. The retaining member is radially movable from the first position to a second position within the fitting nut to release the ferrule from the fitting nut.
Claims17
A fitting subassembly comprising:
- a threaded fitting nut that can be joined with a threaded fitting body to form a fitting assembly, the fitting nut including a radial drive surface and an interior wall defining a socket;
- and
- a ferrule at least partially disposed in the socket;
- and
- a retaining member separate from and retained in a recess in the fitting nut;
- wherein the retaining member retains said ferrule with said fitting nut when the retaining member is in a first position prior to said fitting nut being assembled with said fitting body, the retaining member being movable to a second position within the fitting nut to release the ferrule from the fitting nut;
- and
- wherein the retaining member is radially expandable from the first position to the second position.
A fitting subassembly comprising:
- a threaded fitting nut that can be joined with a threaded fitting body to form a fitting assembly, the fitting nut including a radial drive surface and an interior wall defining a socket;
- and
- a ferrule at least partially disposed in the socket;
- and
- a retaining member separate from and retained in a recess in the fitting nut;
- wherein the retaining member retains said ferrule with said fitting nut when the retaining member is in a first position prior to said fitting nut being assembled with said fitting body, the retaining member being movable to a second position within the fitting nut to release the ferrule from the fitting nut;
- wherein the retaining member is radially movable from the first position to the second position;
- and
- wherein the retaining member comprises a split ring.
A fitting subassembly comprising:
- a threaded fitting nut that can be joined with a threaded fitting body to form a fitting assembly, the fitting nut including a radial drive surface and an interior wall defining a socket;
- and
- a ferrule at least partially disposed in the socket;
- and
- a retaining member separate from and retained in a recess in the fitting nut;
- wherein the retaining member retains said ferrule with said fitting nut when the retaining member is in a first position prior to said fitting nut being assembled with said fitting body, the retaining member being movable to a second position within the fitting nut to release the ferrule from the fitting nut;
- wherein the retaining member is radially movable from the first position to the second position;
- and
- wherein the ferrule comprises a front ferrule, the fitting subassembly further comprising a back ferrule disposed entirely in the socket between the front ferrule and the drive surface.
Dependencies are inferred from the claim text.