LandOfFree - US Patents - Listing for Pipe joints or couplings

Pipe joints or couplings – Elbow

Oilfield coil tubing

Pipe joints or couplings – Particular interface – Tapered

Oilfield tubular connection

Pipe joints or couplings – Particular interface – Tapered

Oilwell tubing connection

Pipe joints or couplings – Particular interface – Tapered

Oilwell tubing connection

Pipe joints or couplings – With leakage or drip disposal – Weep holes

Oilwell tubular connection

Pipe joints or couplings – Side to pipe side

Omni-directional fastener

Pipe joints or couplings – Connector for conduit housing electromagnetic line: – Having box and connector

One piece electrical connector

Pipe joints or couplings – Essential catch – With manipulator

One piece quick connector

Pipe joints or couplings – Essential catch – Leaf spring

One piece quick connector and integral retainer

Pipe joints or couplings – Elbow

One piece tubular elbow and process of manufacture

Pipe joints or couplings – With assembly means or feature

One stroke soft-land flowline connector

Pipe joints or couplings – Having plural independent paths – Parallel paths

One-operation piping-installation fluid pressure apparatus

Pipe joints or couplings – With assembly means or feature – Quick release

One-piece coupler for connecting hoses

Pipe joints or couplings – With fluid pressure seal – With expansible chamber means

One-piece coupler for connecting hoses

Pipe joints or couplings – Sleeve – Dependent

One-piece coupling connector for tubing

Pipe joints or couplings – Frangible element – Score line or groove

One-piece nut and sleeve for improved tube fitting

Pipe joints or couplings – Nonmetal to metal – Internal member

One-touch joint for flexible tube

Pipe joints or couplings – With casing – lining or protector – Insulated

Optical fiber connector

Pipe joints or couplings – With casing – lining or protector – Insulated

Optical fiber coupling means having spiral air vent passage