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| Number | Title | Issue Date |
| 4681353 | V-coupling for installation in narrow annular spaces A V-coupling device for coupling coaxial annular flanges comprising at least two arcuate coupling members, a pivoting mechanism for pivotally and releasably coupling the coupling members at their first ends, and a tightening mechanism which includes an ax... | 07/21/1987 |
| 4643463 | Gimbal joint for piping systems A flexible gimbal joint for pipes including an internal flexible seal interconnecting the pipes and an external gimbal ring which also provides secondary sealing. The joint includes spherical portions with mating sinusoidal free edges, the external ring a... | 02/17/1987 |
| 4589666 | Slip joint assembly for a split ring seal A split ring seal assembly with a slip joint including a split ring having first and second free ends and a connecting member in the shape of a ring segment having first and second ends. The split ring seal has a multiple convoluted cross section with two... | 05/20/1986 |
| 4553775 | Resilient annular seal with supporting liner A fluid-tight sealing apparatus with a protective liner for sealing a pair of tubes having high temperature and pressure fluid flowing therethrough. The apparatus comprises an inner tubular surface coupled to the first tube and a sealing assembly coupled ... | 11/19/1985 |
| 4457523 | Torsionally flexible metallic annular seal A torsionally flexible annular seal in the form of a metallic, resilient sealing ring for a pair of concentric, hollow annular bodies having high pressure and temperature fluid flowing therethrough and having different thermal expansion rates and/or tempe... | 07/03/1984 |
| 4218067 | Multi-ply sealing rings There is disclosed a resiliently deformable metallic annular sealing ring comprising an inner element and at least one adjacent concentric element. Each of the elements has a radial cross sectional shape comprising a curvilinear member which encompasses a... | 08/19/1980 |
| 4071269 | Flexible piping joint A flexible piping joint in the form of a fluid-tight coupling and sealing apparatus for two tubes having high pressure fluid flowing therethrough, the joint having angular, axial and rotational flexibility and comprising a metallic, resilient annular seal... | 01/31/1978 |
| 4071268 | Pressure compensated slide joint A pressure compensated slide joint for sealing first and second tubes having high pressure fluid flowing therethrough comprising a metallic, resilient sealing element extending from the first tube into an interference fit with the interior surface of the ... | 01/31/1978 |
| 4054306 | Tube and cylindrical surface sealing apparatus A fluid-tight sealing apparatus for sealing a tube to a cylindrical surface while subjected to axial, rotational and angular misalignments comprising a metallic, resilient sealing member on the tube having a ring portion with a curved surface for contacti... | 10/18/1977 |
