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| Number | Title | Issue Date |
| 7419192 | Braze-free connector utilizing a sealant coated ferrule A braze-free connector suitable for use in a refrigeration system that includes a connector body having a circular opening passing therethrough. The opening has a converging section that tapers downwardly from the entrance to the opening toward the back of the openi... | 09/02/2008 |
| 7325840 | Arrangement for connecting a fiber-reinforced plastic pipe to a stainless steel flange Arrangement for connecting a fiber-reinforced plastic pipe (18) to a stainless steel flange (12, 16), in which the end of the fiber-reinforced plastic pipe (18) is accommodated in a ring-shaped groove (12a, 16a) in th... | 02/05/2008 |
| 7322615 | Adjustable plumbing fitting An adjustable plumbing fitting is adapted to adjust a length of connection between supply and inlet pipes, and includes a sleeve member, a collar member, and a sealing member. The sleeve member includes an annular section sleeved on and threadedly engaged with the i... | 01/29/2008 |
| 7144048 | Composite marine riser A composite marine riser may be formed, in one embodiment, of a pair of threaded metallic sections having threaded external surfaces. The threaded external surfaces may taper from a larger to a smaller diameter. The composite material may be formed over the threaded... | 12/05/2006 |
| 6916248 | Flexible coupling Flexible couplings are provided comprising a male member disposed within a female member in a spaced apart configuration, with the space being filled, at least partially, with an elastically deformable material. The male and female members comprise features that pre... | 07/12/2005 |
| 5478123 | Corrugated spiral pipe joint, corrugated spiral pipe provided with the joint, producing method therefor, and method of connecting a corrugated spiral pipe to the corrugated spiral pipe A pipe joint for connecting a corrugated spiral pipe includes an annular projection formed on the axially central portion, a spiral projection bonded on a portion on one side of this projection so as to engage with the spiral pipe, compressible and transf... | 12/26/1995 |
| 5449207 | Pipe coupling A coupling apparatus and method is disclosed for coupling a first hose having groove means formed in the outer hose surface of the first hose to a first coupling member. The apparatus and method comprises an internal bore extending through the first coupl... | 09/12/1995 |
| 5362114 | Pipe joint and method for forming same for threaded connection of profile pipe A pipe joint for first and second profile wall pipes of the type having generally concentric, spaced apart inner and outer walls, and a helical rib connecting the inner wall to the outer wall. The convolutions of the helical rib extend in multiple turns a... | 11/08/1994 |
| 5341843 | Plumbing and heating pipe system for water supply purposes, made either completely or mainly of plastic material, especially of polypropylene A plumbing and heating pipe system for water supply purposes, made either completely or mainly of plastic material, especially of polypropylene, said system being provided with metallic connecting sleeves as well as reducers for connecting the plastic pip... | 08/30/1994 |
| 5033904 | Tubular dowel system A dowel system for securing in a generally abutting relationship two parts or pieces of material having facing surfaces and preformed, aligned annular recesses. The dowel system includes a tubular body having sidewalls which are thinner near the middle of... | 07/23/1991 |
