Patents Represented by Attorney James Trygg
  • Patent number: 5718145
    Abstract: A high speed stamping and forming machine (10) is provided having a ram (34) capable of sustained high speed operation. The ram (34) is pivotally attached to a connecting rod (36) which is eccentrically coupled to a drive shaft by means of an eccentric (40) and hydrostatic bearing (50). The drive shaft (30) is journaled in hydrostatic bearings (84, 86) in the frame (12) of the machine. The ram reciprocates toward and away from a bolster plate (20) within a ram bearing (138) having hydrostatic bearings therein.
    Type: Grant
    Filed: June 29, 1995
    Date of Patent: February 17, 1998
    Assignee: The Whitaker Corporation
    Inventor: Dimitry Grabbe