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| Number | Title | Issue Date |
| 7954857 | Assembly of multi-use torque fitting and length of tubing having compressible seal An assembly comprises a multi-use torque fitting and a length of tubing. The torque fitting generally comprises a threaded body portion and a torque-limiting body portion, wherein the threaded body portion and the torque-limiting body portion are arranged substantia... | 06/07/2011 |
| 7360800 | Compression clamp A one-piece unitary compression clamp for securing a pipe or tube on a fitting. The clamp may include at least one inward deformation that provides an interference fit between the clamp and the pipe or tube. Consequently, the clamp cannot fall off the pipe or tube b... | 04/22/2008 |
| 7198101 | Downhole release joint A downhole apparatus permitting separation of one part of downhole equipment from another part thereof includes a first part connected to a second part by a connecting member which limits axial and rotational movement of the first and second parts and has first and ... | 04/03/2007 |
| 7013927 | Sleeve for toilet flanges and drains A protective sleeve system for use by plumbers during installation of riser pipes in buildings, surrounds a pipe and maintains a space around the pipe. A sleeve surrounds the pipe such that a space is defined between the pipe and the sleeve and a plurality of spacer... | 03/21/2006 |
| 4865364 | Conical thread form A connector for connecting two pipes has threads configured to improve making up in severe motion conditions. The connector includes a pin and a box, each having frusto-conical surfaces with helical threads formed on them. The threads have multiple starts... | 09/12/1989 |
| 4697830 | Stabbing guide A guide for protecting threads and seals when joining lengths of production tubing has a guiding portion made of two semicyclindrical polypropylene elements, which when placed together have an annular cross section and form a funnel-like upper end. A stra... | 10/06/1987 |
