Patent application number | Description | Published |
20090266211 | LINEAR SAW WITH STAB-CUT BEVEL CAPABILITY - A method for automatically cutting a workpiece comprising the steps of moving a workpiece along its longitudinal axis, positioning a cutting blade by rotating the blade about a vertical axis, positioning the cutting blade by rotating about a bevel axis, and vertically moving the blade into cutting contact with the workpiece, thereby stab cutting the workpiece and creating a bevel cut. The method may also comprises moving the blade along a transverse axis. Further steps may include moving the cutting blade along a transverse axis simultaneous to moving the workpiece along it longitudinal axis, thereby creating a scarf cut. | 10-29-2009 |
20100308240 | ELECTRIC FAIL SAFE VALVE ACTUATOR - A method and assembly are disclosed having a motor assembly, gear box assembly, clutch assembly, drive assembly and shaft operable to move between an extended and retracted positions. The shaft may be connected to operate a separate valve assembly. The gear box assembly is operably connected to and driven by the motor assembly. The gear box assembly drives the electromagnetically operated clutch assembly. The clutch assembly contains a fail-safe mechanism, thus providing a fail-safe mechanism downstream of the motor and gear box assemblies. Electric power is supplied to the clutch assembly to maintain the fail-safe mechanism in an engaged position. When electric power fails to be supplied to the clutch assembly, the fail-safe mechanism moves to the disengaged position. A compressible mechanism drives the shaft to its other position when the fail-safe mechanism disengages. The shaft is moved to its other position without driving the motor and gear box assemblies and irrespective of whether those assemblies are operable. The drive assembly may be reversible, powering the shaft to both positions. The drive assembly is a ball screw assembly in an exemplary embodiment. | 12-09-2010 |
20120198976 | LINEAR SAW WITH STAB-CUT BEVEL CAPABILITY - A method for automatically cutting a workpiece comprising the steps of moving a workpiece along its longitudinal axis, positioning a cutting blade by rotating the blade about a vertical axis, positioning the cutting blade by rotating about a bevel axis, and vertically moving the blade into cutting contact with the workpiece, thereby stab cutting the workpiece and creating a bevel cut. The method may also comprise moving the blade along a transverse axis. Further steps may include moving the cutting blade along a transverse axis simultaneous to moving the workpiece along it longitudinal axis, thereby creating a scarf cut. | 08-09-2012 |