The Minster Machine Company

Daniel L Keller

Edward A Daniel

William C Brewer

Norman J Couchot

Jill M Bornhorst

A detection system is installed into a press piston guiding area for detecting if the piston guiding system has lost its requisite clearance. The detector is installed in a typical press in such a way that when the negatively grounded press piston touches the detector, it discharges the electrical potential between the detector and the piston. Upon contact, a signaling device stops the press, and a fault is indicated. In an alternative embodiment, the detector senses an eddy current when in close proximity to the piston.

Detection system for a press piston guiding system

A dynamic oil control mechanism for a press including a vacuum inducing ejector or jet-pump to vacuum oil leaking from about an oil seal. The oil seal is located around the drive piston on the press slide to prevent oil migration from the press crown to the die area or slide of the press. A drain port is located about the housing in which the drive piston reciprocates. The ejector maintains a low pressure area within the drain port to pull oil leaking from the seal into the drain port and away from the drive piston. The vacuumed oil is then transferred to an oil reservoir.

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Minster, OH, United States of America

Daniel L Keller