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| Number | Title | Issue Date |
| 7007711 | Dispersion nozzle with variable throughput The invention relates to a dispersing device wherein the dispersed material has a variable throughput comprising a jet disperser which comprises at least one inlet for the materials to be dispersed, a chamber with a multiciplicity of openings arranged in rows along ... | 03/07/2006 |
| 6488265 | Ball valve assembly An improved ball valve assembly is provided for use on firefighting equipment and other applications. The ball valve assembly includes an improved seal assembly which includes both a load bearing seal element and a soft elastomeric seal element. Both seal... | 12/03/2002 |
| 4575101 | Device for safe on-stream addition of valve packing A fitting for safe on-stream addition of valve packing which comprises a housing enclosing a first and second chamber each chamber associated with a means for ejecting valve packing, the first chamber being accessible from the valve when the fitting is mo... | 03/11/1986 |
| 4318422 | Butterfly valve A butterfly valve is adapted to pivot a valve stem to a valve body through openings formed in a ring-shaped elastic valve seat attached inside the valve body, to slidably contact the valve member and the inner face of the valve seat each other in the vici... | 03/09/1982 |
