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| Number | Title | Issue Date |
| 7350535 | Valve A valve apparatus (100) for use in sterile fluid transfer or isolator systems has open entry (10) and exit (11) sides and a passageway (9) for fluid between the entry (10) and the exit (11) sides. The entry side (10) ... | 04/01/2008 |
| 7104518 | Automatic valve manual lock out A ready method to disconnect the motive power of an actuator from the input of a valve. A handle is inserted onto the coupling held in the housing, disconnecting the motive power of the actuator and engaging the driven piece connected to the input shaft of the valve... | 09/12/2006 |
| 6361017 | Locking valve with joint allowing packing service A valve for a tank containing anhydrous ammonia has a valve mechanism joined to a flow chamber from the tank. The valve mechanism has a bonnet with a hole through a sidewall of the bonnet. A stem valve portion and a stem handle portion are mounted in the ... | 03/26/2002 |
| 5479956 | Release apparatus for pneumatic valve operator and method A release mechanism for permitting the operation of a pneumatic valve includes a ring (A) extending about a cylindrical hand held housing for manual manipulation to move a blocking member (B) from beneath a depressible valve operator (D) and is provided w... | 01/02/1996 |
| 5145151 | Internal tank valve with valve lock An internal valve for a mobile tank car having an opening with a valve seat positioned in the opening. A sealing valve element is positioned in the tank for coacting with the valve seat for opening and closing the valve. A disc valve is releasably connect... | 09/08/1992 |
| 4911198 | Securing system for automatically operated valve systems The securing system includes a device and a method for securing a valve assembly in either an open or closed operational position. The automatically operated valve assembly opens and closes a transmission line to flow upon rotation of a rotatable shaft me... | 03/27/1990 |
