Venting valve device for die casting

Details Venting valve device for die casting Venting valve device for die casting

1998-12-28

2000-12-12

Batten, Jr., J. Reed

Metal founding

Control means responsive to or actuated by means sensing or...

Control of feed material enroute to shaping area

1641553, 1641554, 1641556, 164305, 164410, B22D 1722, B22D 1732

Patent

active

061584959

ABSTRACT:
In the venting valve device for die-casting, the evacuation valve which is intended to be closed comprises an evacuation piston and is actuatable by a pneumatic control piston which is in the form of a double-acting differential piston, whereby one of its pressure surfaces is supplied with compressed air by a high response valve in order to open while its other pressure surface is supplied with compressed air by a second control valve in order to close. The high response valve is provided with a vent in order to reduce the pressure maintaining the control piston in the open position within a very short time and thus to ensure a very short closing time of the evacuation piston. While being simple in construction, such a venting valve allows a very short closing time and is therefore particularly suitable also for high-speed die-casting.

REFERENCES:
patent: 4239080 (1980-12-01), Hodler
patent: 4463793 (1984-08-01), Thurner
patent: 5683730 (1997-11-01), Katsumata et al.

Affiliated with

Also associated with

Rating

Venting valve device for die casting does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Venting valve device for die casting, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Venting valve device for die casting will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-207493