|7527237||Valve actuation velocity control device|
The present invention is directed for use in a valve assembly including a housing having an axis and defining an interior, with fluid provided in the housing and substantially filling the housing interior, a valve stem disposed in the housing interior and a piston a...
|5080423||Segmented cover system|
The present invention provides a segmented cover system utilizing a series of cover sections, which can be of any size and shape, and a series of curved or straight supporting bows to form a cover assembly which allows for the easy replacement of a cover ...
|4460009||Valve stem actuator|
A valve stem actuator for a slurry valve or the like includes a support frame extending from the valve body to a linear operator having a cylinder and piston. Means are provided for connecting the piston rod to the valve stem and means reciprocally mounte...