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| Number | Title | Issue Date |
| 7156124 | Segment for rehabilitating an existing pipe and a rehabilitating pipe assembled using segments A segment for rehabilitating an existing pipe has an integral structure comprised of an inner plate having an inner circumferential surface that is planar or curved with a prescribed curvature, two side plates provided upright on each side edge of the inner plate, a... | 01/02/2007 |
| 5895378 | Flow-directed catheter having multiple tapers and radio-opaque markers This is a bloodflow-directable infusion catheter which may be used in cardiovascular and endovascular procedures to deliver diagnostic, therapeutic, or vaso-occlusive agents to a target site accessible through the vasculature. The device is a flow-directe... | 04/20/1999 |
| 5662145 | Dual bias weld for continuous coiled tubing A dual bias weld is an improved weld for joining strips to be formed into coiled tubing. Tubing is formed from a first strip and a second strip, the first and second strips being of the same width. A planar end surface is formed on an end of the first str... | 09/02/1997 |
| 5191911 | Continuous length of coilable tubing A system for making a long length of seam-welded tubing from shorter lengths of flat metal strip which are spliced end-to-end and formed into tubular form and seam-welded. Adjoining ends of two successive lengths of the strip are trimmed at supplementary ... | 03/09/1993 |
| 5165453 | Conduit containment system A secondary containment system for conduits, pipes and electric cables includes a plurality of separate duct sections connected in end-to-end relation to provide an electrically insulating fluid tight system. Each duct section includes a pair of generally... | 11/24/1992 |
| 4951326 | Return fitting with releasable cap A retaining ring of an eyeball return fitting of the type used in swimming pools and spas is provided with a releaseable or breakaway cover cap. The cap closes the end of the return fitting during construction. This permits the finish work for the cement ... | 08/28/1990 |
| 4735234 | Buried large cross-section conduit A buried conduit consisting, in transverse cross-section, of a lower component (2) and a covering upper component (1) which bears on the upper part of the side walls (22) of the lower component (2) by means of lengthwise bearing members (3). According to ... | 04/05/1988 |
| 4304451 | Interconnection technique for downhole instrumentation Multiple electrical connections between circuits in axially displaced housings are made by mounting the connectors so that they are at right angles to the axis of the housings.... | 12/08/1981 |
| 4260181 | Pipe coupling A pipe coupling useful in plumbing systems formed of unthreaded pipes for repairing damaged portions of said systems, particularly those portions occurring immediately adjacent emplaced couplings, such as an L or T coupling. A coupling in accordance with ... | 04/07/1981 |
| 4105051 | Prefabricated composable duct element A prefabricated composable duct element for piping aeriform fluids in general and for use in erecting concrete casting boxes is provided. The duct element may be connected to further duct elements to constitute conventional ducts such as straights of vari... | 08/08/1978 |
