Multi-sealing compression fitting for plumbing connections
OwnerDonald S. Gloverinventor
Life of this patent
Estimating the term…
Abstract
A compression fitting for sealingly connecting a fluid line to a valve, connector or other fixture. The fitting includes a seat for receiving the end of the fluid tubing. A compression nut coaxially mounted to the tubing threadably engages the fitting to create a compression engagement with the tubing and sealingly connect the fluid line to the fitting for directing fluid flow therethrough. The compression nut includes an inner annular groove for receiving a seal member. The seal member extends into the throughbore of the compression nut to form a secondary seal against the fitting.
Claims16
A fluid line coupling comprising:
- a fluid device having a body with an internal fluid passageway and a pocket in communication with said fluid passageway, said pocket sized to receive the fluid line;
- a fastener member threadably engaging said fluid device, said fastener member having a throughbore forming an inner surface sized to receive the fluid line;
- a primary sealing member made from a deformable material, said primary sealing member sized to receive the fluid line and said primary sealing member disposed within said body of said fluid device wherein upon tightening of said fastener member said primary sealing member engages said body of said fluid device and is deformed radially inwardly to engage the fluid line;
- and
- a secondary sealing member carried by said fastener member, said secondary sealing member extending into said throughbore to sealingly engage the fluid line extending through said fastener member.
A fluid line coupling comprising:
- a fluid device having a body with an internal fluid passageway and a pocket in communication with said fluid passageway, said pocket sized to receive the fluid line;
- a fastener member threadably engaging said fluid device, said fastener member having a throughbore forming an inner surface sized to receive the fluid line, said fastener having an annular groove formed within said inner surface and open to said throughbore;
- a primary seating member made of a deformable material, said primary sealing member seated within said fastener member and sized to receive the fluid line wherein upon tightening of said fastener member on said fluid device said primary sealing member engages said body of said fluid device and is deformed radially inwardly to engage the fluid line;
- a secondary sealing member disposed within said annular groove of said fastener member, said secondary sealing member extending into said throughbore to sealingly engage the fluid line extending through said fastener member.
Dependencies are inferred from the claim text.