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| Number | Title | Issue Date |
| 7650905 | Emergency isolation valve apparatus An emergency isolation valve has a valve plug in a valve body connected to a pipeline. The valve plug is connected to a valve shaft around which a sector gear is provided and engaged with a rack of a piston rod in a cylinder. The piston rod has a piston at one end a... | 01/26/2010 |
| 7647940 | Device and method for pneumatic valve control An apparatus for controlling a valve including an enclosure that defines first and second chambers, an indicator proximate the first and second chambers, an operating media distribution system that is disposed in the first chamber, and an electronic control unit dis... | 01/19/2010 |
| 7641241 | Method of corrosion protection at a welded pipe joint and resulting joint A pipe joint, and a method of forming a pipe joint between two metallic pipes which have been internally and/or externally coated with a material to prevent corrosion includes a spigot and a socket. The socket has, or is formed with, an internal circumferential groo... | 01/05/2010 |
| 7434789 | Picket fence assembly A picket fence assembly is provided which includes uniquely configured pickets which facilitate fast and easy construction of a picket fence without the need for additional mechanical fasteners. In one embodiment, the picket fence includes non-circular pickets, a fi... | 10/14/2008 |
| 7420120 | Flexible conduit and cable A flexible conduit or cable for electrical wiring having at least one break location along the length of the conduit or cable that is visible on an outer surface of the conduit or cable. The break location enables the conduit or cable to be broken. Also provided is ... | 09/02/2008 |
| 7404582 | Conduit coupling assembly A coupling system for conduit and pipe for carrying insulated electrical cable, more particularly, a conduit coupling assembly for connecting multiple lengths of conduit in coaxial relationship. ... | 07/29/2008 |
| 7322415 | Subterranean electro-thermal heating system and method A subterranean electro-thermal heating system including one or more heater cable sections extending through one or more heat target regions of a subterranean environment and one or more cold lead sections coupled to the heater cable section(s) and extending through ... | 01/29/2008 |
| 7260320 | Electric heat tracing Heat tracing of an elongate, thermally-insulated substrate is effected by means of one or more elongate, constant wattage electric heaters mounted in thermal contact therewith beneath the thermal insulation. A metal conduit is mounted on the substrate and extends aw... | 08/21/2007 |
| 5721013 | Custom glue chipped glass processor and method An apparatus and method for the safe and controlled production of glue chipped glass. This custom glue chipped glass processor and method facilitate the production of glue chipped glass for either artisans creating highly specialized works of art, or begi... | 02/24/1998 |
