Plastic article or earthenware shaping or treating: apparatus – Shaping surface including means to release or remove product... – By movable ejector means entering mold cavity
Reexamination Certificate
2007-05-29
2007-05-29
Gupta, Yogendra N. (Department: 1722)
Plastic article or earthenware shaping or treating: apparatus
Shaping surface including means to release or remove product...
By movable ejector means entering mold cavity
C425S139000, C425S150000, C425S576000
Reexamination Certificate
active
10603059
ABSTRACT:
An all plastic metering pump having a bellows-type spring with a tubular valve which is integrally formed on it in a single piece in a discharge region toward a metering head, the tubular valve being designed as a discharge valve of the metering pump. In the method, the pump components, which have been manufactured in each case in a plurality of injection cycles, are assembled from the injection mold in a defined assembly sequence in time with the injection cycles, the number of assembly steps corresponding to the number of injection cycles for producing the various pump components.
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Flynn ,Thiel, Boutell & Tanis, P.C.
Gupta Yogendra N.
Ing. Erich Pfeiffer GmbH
Luk Emmanuel S.
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