Richard A Habarth, 84222 W Calle Nogal, Green Valley, AZ 85614

5759000, Jun 2, 1998

Apr 16, 1997

8/838232

Walter W. Wawrzyniak - Humacao, PR
Thomas E. Wawrzyniak - Fraser MI
Richard A. Habarth - Allen Park MI

B23B 4722

409231

A generating head assembly for cutting or machining a surface on a workpiece and including a generating head mounted for relative rotation with the workpiece and with cutting or machining members having a radially advanced cutting or machining position for cutting or machining the surface of the workpiece and a radially retracted non-cutting on non-machining position; the generating head assembly includes an actuating structure for providing relative rotation between the generating head and the workpiece and a rotary motor mounted with the generating head; the rotary motor is selectively operable to rotate an actuating shaft relative to the generating head to actuate the cutting or machining members to their radially advanced and retracted positions without axial thrust loads being applied to the generating head.

5651645, Jul 29, 1997

Oct 12, 1994

8/323702

Walter W. Wawrzyniak - Humacao, PR
Thomas E. Wawrzyniak - Fraser MI
Richard A. Habarth - Allen Park MI

B23B 4722

408 13

A generating head assembly for cutting or machining a surface on a workpiece and including a generating head mounted for relative rotation with the workpiece and with cutting or machining members having a radially advanced cutting or machining position for cutting or machining the surface of the workpiece and a radially retracted non-cutting on non-machining position; the generating head assembly includes an actuating structure for providing relative rotation between the generating head and the workpiece and a rotary motor mounted with the generating head; the rotary motor is selectively operable to rotate an actuating shaft relative to the generating head to actuate the cutting or machining members to their radially advanced and retracted positions without axial thrust loads being applied to the generating head.

5170678, Dec 15, 1992

May 29, 1992

7/892406

Walter W. Wawrzyniak - Mt. Clemens MI
Richard Habarth - Allen Park MI

B23B 2924
B23Q 104

74813L

An index table structure and method of indexing where the index table structure includes a table top which is angularly rotatable and has a plurality of cam members around the periphery thereof with each including radially outwardly opening cam recess having a bust locating surface for defining a precisely located indexed position of the table top, a dual motor brake structure for driving the table top between angularly separated indexed positions, a shot pin positioned adjacent the periphery of the table top and having a second locating surface adapted to mate with the first locating surface of the cam recess to locate the indexed table top in a precisely indexed position, a fluid cushion structure for providing a fluid cushion for the table top during rotation; in indexing the table top it is rotated in one direction whereby the shot pin is cam actuated into one of the cam recesses to approximately locate the table top in an indexed position and subsequently the table top is rotated in the opposite direction to engage the first and second locating surfaces on the cam recess and shot pin to precisely locate the table top in one of its indexed positions with the shot pin being wedge locked to prevent the table top from rotating out of position.

5167589, Dec 1, 1992

Dec 4, 1991

7/803715

Walter W. Wawrzyniak - Mt. Clemens MI
Richard Habarth - Allen Park MI
Giovanni Pieri - Troy MI

Practical Engineering, Inc. - Roseville MI

F16H 128
F16H 3712

475169

A mechanism for providing a cycloidal output motion for an output member in a linear direction using a constant velocity rotary input motion driving an off-center input shaft and drive gear and utilizing a secondary motion to influence the position of the drive gear in relation to the output member and the acceleration and deceleration of the output member. A compact embodiment utilizes a ring gear and planetary and a reaction motion to provide the secondary input.

5054975, Oct 8, 1991

Nov 9, 1990

7/612074

Walter W. Wawrzyniak - Mt. Clemens MI
Richard A. Habarth - Allen Park MI

Practical Engineering, Inc. - Roseville MI

B23C 100
B23Q 520

409131

A milling machine for cutting a surface on a workpiece and including a milling head assembly having a cutting stroke for cutting the surface of the workpiece and a return stroke to prepare for the next cutting stroke, the milling head assembly including a rotatable spindle structure with a cutter structure mounted to the spindle structure for rotation therewith and being actuable to provide a desired cut on the workpiece surface and a piston and cylinder construction operatively connected with the cutter structure to axially position the cutter structure separately from the spindle structure between an advanced position to provide a desired cut on the workpiece surface and a retracted position relative to the workpiece surface to preclude cutting engagement with the workpiece surface as the cutter structure is moved in opposite directions traversing the workpiece surface and a unique method providing a rough cut on the workpiece surface when the cutter structure is in the retracted position and a finish cut when the cutter structure is in the advanced position and actuating the cutter structure to the retracted position for the return stroke after the finish cut.