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| Number | Title | Issue Date |
| 7246637 | Balanced valve A balanced valve for controlling the flow of fluids in conduits, the valve comprising: (a) a casing formed of sidewalls and a casing top and bottom, defining an interior; (b) a fluid inlet in a sidewall of the casing and a fluid outlet in an opposite sidewall of sai... | 07/24/2007 |
| 5392813 | Integral bleed system for valve A unified block integral bleed system for use with valves such as plug-type valves wherein pressure release flow occurs through a manifold port mounting arrangement which accesses upstream, downstream and body cavity portions of the valve and provides atm... | 02/28/1995 |
| 4410428 | Duplex cam-operated pressure-balanced sleeve valve A duplex cam-operated pressure-balanced sleeve valve is provided for controlling fluid flow into either one or both of two fluid lines, such as to either one or both of two filter elements, comprising, in combination; (1) a valve housing; (2) first and second ... | 10/18/1983 |
| 4274445 | Pressure balanced three-way transfer valve A pressure-balanced three-way transfer valve for controlling fluid flow into one of two fluid lines includes a pair of cam actuated valves actuated by a single actuator to move a respective valve to an open and closed position. Pressure balancing of the v... | 06/23/1981 |
| 4197874 | Pressure regulator and flow control valve with pre-exhaust vent means A combination pressure regulating and flow control valve having a first fluid passage interconnecting an upstream port and a downstream port. An adjustable pressure regulating valve is mounted in the first fluid passage to provide a reduced pressure at th... | 04/15/1980 |
| 3965929 | Conduit valve Three elongated tubular members are disposed within one another, the second member being spaced inwardly of the first member to form a fluid channel therewith and sealed and extending through a transverse wall dividing the first member into two chambers, ... | 06/29/1976 |
