Thomas J Bubula

52381773, Aug 24, 1993

Aug 10, 1992

7/927803

William L. Nakulski - Roselle IL
Thomas J. Bubula - Beecher IL
Richard J. Behrends - Wauconda IL

Flexible Steel Lacing Company - Downers Grove IL

B23K 1301

228265

Disclosed is a flexible hinge pin, and a method and apparatus for forming the hinge pin, wherein a cable is twisted and heated with sufficient torque and heat to sever the cable into shorter hinge pins. The heating and twisting causes the portions of the cable in proximity with the severed ends to have a tight spiral and to be reduced in diameter, and the strands which comprise the cable to be bonded to one another both internally and at external portions of the cable. The reduced diameters of the formed ends facilitates easier threading of the hinge pins through belt fastener hoops. The bonding of the cable strands in the region of the ends serves to both maintain the tight spiral and the reduced diameter, and to prevent the ends of the hinge pin from separating.

40808505, Mar 28, 1978

Sep 2, 1975

5/609637

Thomas J. Bubula - Joliet IL
Maurice F. Franz - East Peoria IL
Gordon W. Johnson - Peoria IL
James D. Rinaldo - Joliet IL

Caterpillar Tractor Co. - Peoria IL

B60K 4100
F16D 3102
F16H 4702

74861

A drive train includes a hydrostatic transmission unit and a multiple speed range transmission unit arranged in series between a prime mover and a primary output shaft, variable displacement and torque transmitting capacity of the hydrostatic transmission unit being adjusted by hydraulic controls including a speed control valve for developing a differential pressure signal proportional to a desired rate of operation, a modulating valve for regulating the differential pressure signal corresponding to accelerating and decelerating operation of the transmission, a directional control valve for determining the direction of operation of the hydrostatic transmission unit, and a range selector valve for shifting the operating speed range of the multiple speed range transmission as the hydrostatic transmission approaches a limit of displacement, the displacement of the hydrostatic transmission being automatically reset in response to shifting of the multiple speed range transmission. Operating speed limits are automatically established for the drive train by an override speed control valve which manually adjusts the differential pressure signal for reduced torque transmission through the drive train when the prime mover is operating below a minimum speed. A speed limiting control valve responds to operation of the prime mover above a maximum selected speed for automatically applying a brake within the drive train in order to supplement dynamic braking capacity of the transmission unit, the speed limiting control valve including means producing a feedback signal for resisting manual operation of the override speed control valve in proportion to engagement of the brake within the drive train.

42032938, May 20, 1980

Oct 25, 1977

5/844662

Thomas J. Bubula - Joliet IL
Maurice F. Franz - East Peoria IL
Gordon W. Johnson - Peoria IL
James D. Rinaldo - Joliet IL

Caterpillar Tractor Co. - Peoria IL

F16H 3910

60490

A drive train includes a hydrostatic transmission unit and a multiple speed range transmission unit arranged in series between a prime mover and a primary output shaft, variable displacement and torque transmitting capacity of the hydrostatic transmission unit being adjusted by hydraulic controls including a speed control valve for developing a differential pressure signal proportional to a desired rate of operation, a modulating valve for regulating the differential pressure signal corresponding to accelerating and decelerating operation of the transmission, a directional control valve for determining the direction of operation of the hydrostatic transmission unit, and a range selector valve for shifting the operating speed range of the multiple speed range transmission as the hydrostatic transmission approaches a limit of displacement, the displacement of the hydrostatic transmission being automatically reset in response to shifting of the multiple speed range transmission. Operating speed limits are automatically established for the drive train by an override speed control valve which manually adjusts the differential pressure signal for reduced torque transmission through the drive train when the prime mover is operating below a minimum speed. A speed limiting control valve responds to operation of the prime mover above a maximum selected speed for automatically applying a brake within the drive train in order to supplement dynamic braking capacity of the transmission unit, the speed limiting control valve including means producing a feedback signal for resisting manual operation of the override speed control valve in proportion to engagement of the brake within the drive train.

41933230, Mar 18, 1980

Oct 25, 1977

5/844663

Thomas J. Bubula - Joliet IL
Maurice F. Franz - East Peoria IL
Gordon W. Johnson - Peoria IL
James D. Rinaldo - Joliet IL

Caterpillar Tractor Co. - Peoria IL

F16H 4700

74733

A drive train includes a hydrostatic transmission unit and a multiple speed range transmission unit arranged in series between a prime mover and a primary output shaft, variable displacement and torque transmitting capacity of the hydrostatic transmission unit being adjusted by hydraulic controls including a speed control valve for developing a differential pressure signal proportional to a desired rate of operation, a modulating valve for regulating the differential pressure signal corresponding to accelerating and decelerating operation of the transmission, a directional control valve for determining the direction of operation of the hydrostatic transmission unit, and a range selector valve for shifting the operating speed range of the multiple speed range transmission as the hydrostatic transmission approaches a limit of displacement, the displacement of the hydrostatic transmission being automatically reset in response to shifting of the multiple speed range transmission. Operating speed limits are automatically established for the drive train by an override speed control valve which manually adjusts the differential pressure signal for reduced torque transmission through the drive train when the prime mover is operating below a minimum speed. A speed limiting control valve responds to operation of the prime mover above a maximum selected speed for automatically applying a brake within the drive train in order to supplement dynamic braking capacity of the transmission unit, the speed limiting control valve including means producing a feedback signal for resisting manual operation of the override speed control valve in proportion to engagement of the brake within the drive train.

50202090, Jun 4, 1991

Nov 6, 1989

7/432196

Brian W. Fullard - Naperville IL
Thomas J. Bubula - Beecher IL

Flexible Steel Lacing Company - Downers Grove IL

B23P 1100

295648

An apparatus is disclosed for cutting an end of a belt and for clinching belt fasteners to the cut belt end. The apparatus includes a clamp for clamping the belt and a knife carriage driven across the belt to cut the belt end wtih a knife on the carriage. A line of belt fasteners mounted in a comb are then pressed against the belt by a roller which is mounted on a roller carriage for travel across the line of belt fasteners. Preferably, a single, detachable, manual driver or handle is used to drive the knife carriage and the roller carriage.