Valves and valve actuation – With means to increase head and seat contact pressure – With positive reduction
Reexamination Certificate
2006-09-12
2008-03-11
Bastianelli, John (Department: 3753)
Valves and valve actuation
With means to increase head and seat contact pressure
With positive reduction
C251S204000, C251S279000
Reexamination Certificate
active
07341237
ABSTRACT:
A valve mechanism having at least one movable valve member for sealing of a valve opening in a housing. Movements of the individual movable valve members are accomplished essentially parallelly to, and perpendicularly to, the seat surface of the valve during the opening and closing of the valve. In order to achieve high forces and low wear in the movement carried out with aid of a slot guide which guide serves to transmit forces during, and in the direction of, the opening and closing, the slot guide comprises slots which are formed in a drive plate, which slots cooperate with and overlap complementary slots in the movable valve members.
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Bastianelli John
The Maxham Firm
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