Metal working – Method of mechanical manufacture – Valve or choke making
Reexamination Certificate
2008-05-06
2008-05-06
Cozart, Jermie E. (Department: 3726)
Metal working
Method of mechanical manufacture
Valve or choke making
C029S890124, C029S890127, C029S527500, C251S367000, C123S337000
Reexamination Certificate
active
07367124
ABSTRACT:
This invention relates of the problem, to create a butterfly valve neck without an emergence of a gap between the butterfly valve neck and the butterfly valve. This invention disposes the problem trough a parted butterfly valve neck, with between attached sealing, where the butterfly valve rest on in the closed location. This invention causes, to reduce considerable the leakage air quantity, by the absent of a gap, between the butterfly valve neck and the butterfly valve in the closed location. An inhibition of the butterfly valve in the parted butterfly valve is no more possible. By the inventive sealing of this invention, the motor can operate with a lower idling speed and a smaller emission. Further, an advantage of this invention is the regulation (adjustment) of the dimension of the parted butterfly valve and the sealing, where-by each of the rule curves by starting will achieved from the closed location.
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Cozart Jermie E.
Siemens AG
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