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| Number | Title | Issue Date |
| 7093860 | System for joining sections of composite reinforced line pipe A composite reinforced line pipe is manufactured by aligning first and second pipe segments each having a composite reinforcement wrapped circumferentially about a core, attaching the line pipes at a cut-back portion of their exposed core, wrapping a joint tape circ... | 08/22/2006 |
| 6905141 | Glass elements with a conductive coating, the use thereof, as well as devices, installations and pipe conducts produced therefrom Glass modules for use in the assembly of equipment, installations and for pipe works, the surfaces of which are entirely or partially coated with a conductive coating, in particular from transparent conductive polymers for the purpose of reducing surface resistance,... | 06/14/2005 |
| 6099975 | Molded nipple connection system A molded nipple connection system for permanently molding a metal nipple within a plastic container that is not susceptible to expansion/contraction forces incurred by the plastic container. The inventive device includes a metal nipple having a threaded e... | 08/08/2000 |
| 5975589 | Hydraulic coupling A hydraulic coupling employing a polymeric elastomeric sealing member to provide an excellent seal under pressure. The polymeric elastomeric seal additionally has high resistance to acids, alkalis, hydrocarbons, ketones, ethers, esters, alcohols and salt ... | 11/02/1999 |
| 5556139 | Hydraulic coupling A hydraulic coupling employing a polymeric elastomeric sealing member to provide an excellent seal under pressure. The polymeric elastomeric seal additionally has high resistance to acids, alkalis, hydrocarbons, ketones, ethers, esters, alcohols and salt ... | 09/17/1996 |
| 5215341 | Structural member molded of resin having a metal ring insert and method of producing the same A structural member comprising a main body molded of synthetic resin, an insert portion molded from a engineering plastic having better functional properties at least in respect of strength than those of an ordinary synthetic resin and a metallic reinforc... | 06/01/1993 |
| 5150922 | Electrofusion joint and hot water supply header using the same The improved electrofusion joint and header for supplying hot water that perform satisfactorily at elevated temperatures as evidenced by high heat resistance, that exhibit good sealing property and that can be handled efficiently in mounting and various o... | 09/29/1992 |
| 5129688 | Torque reducing coupling for face seal fittings In a face seal fitting between two conduits, one conduit is provided with an annular groove in which a two-piece ring makes a sliding fit. The ring is coated with a diamond low friction coating which facilitates sliding of the ring in the groove. The ring... | 07/14/1992 |
| 4911482 | Ball joint The flexible ball joint is provided with a continuous ring mounted inside a casing and supported by an inner spherical surface of one of the segments of the casing and by a cylindrical portion of an end piece element. The respective contacting sides of th... | 03/27/1990 |
| 4817994 | Aseptic pipe joint An aseptic pipe joint for food processing pipe fittings of the type including a pair of frustoconical ferrules having radially extending surfaces, a "C" shaped metallic ring positioned between the surfaces in abutting relation therewith, a resilient O-rin... | 04/04/1989 |
| 4641864 | Wear resistant pipe bend for slurry transport An abrasion resistant pipe bend or elbow for slurry pipelines is disclosed. The bend or elbow has a wall of enlarged thickness disposed in the exterior of the turn of the fluid flow, in the area where impingement of the interior wall of the elbow by solid... | 02/10/1987 |
| 4641860 | Coupling for flexible tubing A coupling for fluidly connecting flexible tubing includes a rigid connector and an elastic retaining sleeve. The rigid connector has a main portion and a first and preferably second male end portions projecting therefrom with a fluid passage disposed wit... | 02/10/1987 |
| 4630851 | Pipe couplings The pipe coupling is of compression type and comprises a main body having externally threaded portions, a nut and at least one sleeve. The sleeve is formed with a ceramic coating layer on its entire surface.... | 12/23/1986 |
| 4557510 | Corrugated tube coupling A sheet is disclosed for forming a plurality of coupling bands for connecting the ends of corrugated drain tubes having external grooves. The sheet includes a plurality of parallel lines of hollow lugs. The lugs are separated from each other by an integra... | 12/10/1985 |
| 4557507 | Vertical spigot joint A vertical spigot joint for sealing the space between the socket and the end of a pipe inserted in the socket has an aluminium cord sealing the space and a filler mixture. The filler mixture comprises aluminium cement, vermiculite grains and a plastics ma... | 12/10/1985 |
| 4418918 | Static seal device with plastically deformable metal for cryogenic refrigerators A face seal positioned between a first threaded member 12 and a second threaded member 10. The face seal provides effective sealing between rotatably secured members of a cryogenic refrigerator. The face seal comprises a seal space 32 formed by dual reces... | 12/06/1983 |
| 4248460 | Plastic pipe fitting This invention relates to a plastic pipe fitting having a connecting portion for attachment to another fitting and a joining portion to be fuse bonded to a length of pipe, whereby successive lengths of plastic pipe may be releasably connected. The connect... | 02/03/1981 |
