Pressure piston for a die-casting machine

Details Pressure piston for a die-casting machine Pressure piston for a die-casting machine

1975-09-26

1977-07-19

Maslousky, Paul E.

Expansible chamber devices

Piston with rigid axially extending hollow stem

Hollow stem forms axially extending fluid passage

92128, 92258, F01B 2900, F01B 3100, F16J 110

Patent

active

040361136

ABSTRACT:
The pressure piston for a die-casting machine comprises a carrier formed with a crown having a central blind bore closed at its driving end and with an abutment ring. Surrounding the carrier and abutting the abutment ring is a piston skirt forming with the carrier an annular space through which passes a cooling medium. The skirt is held in position by a threaded clamping sleeve engaging a thread on the carrier on the side of the annular space remote from the abutment ring. By providing a thread of suitable length the carrier can accommodate skirts of various sizes. For this reason the axial extent of the carrier part between the abutment ring and the securing region for the clamping sleeve is less than the maximum but greater than the minimum length of the piston skirts.

REFERENCES:
patent: 2806450 (1957-09-01), Geyer
patent: 2955574 (1960-10-01), Geyer
patent: 3046621 (1962-07-01), Morton
patent: 3203056 (1965-08-01), Thompson et al.

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