Joseph E. Dezelan

Person

Joliet, IL, US

People

Patents Grantslast 30 patents

Information Patent Grant
Electro-hydraulic quick drop circuit
- Patent number 5,226,348
- Issue date Jul 13, 1993
- Caterpillar Inc.
- Joseph E. Dezelan
- F15 - FLUID-PRESSURE ACTUATORS HYDRAULICS OR PNEUMATICS IN GENERAL
Information Patent Grant
Flow control valve assembly wth quick response
- Patent number 4,515,181
- Issue date May 7, 1985
- Caterpillar Tractor Co.
- Joseph E. Dezelan
- F15 - FLUID-PRESSURE ACTUATORS HYDRAULICS OR PNEUMATICS IN GENERAL
Information Patent Grant
Load sensing steering
- Patent number 4,354,351
- Issue date Oct 19, 1982
- Caterpillar Tractor Co.
- Joseph E. Dezelan
- F15 - FLUID-PRESSURE ACTUATORS HYDRAULICS OR PNEUMATICS IN GENERAL
Information Patent Grant
Selectively actuatable fluid control system for a work element
- Patent number 4,341,149
- Issue date Jul 27, 1982
- Caterpillar Tractor Co.
- Joseph E. Dezelan
- E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING
Information Patent Grant
Variable displacement front wheel drive system
- Patent number 4,341,280
- Issue date Jul 27, 1982
- Caterpillar Tractor Co.
- Joseph E. Dezelan
- B60 - VEHICLES IN GENERAL
Information Patent Grant
Closed center emergency steering with accumulator source
- Patent number 4,217,968
- Issue date Aug 19, 1980
- Caterpillar Tractor Co.
- Joseph E. Dezelan
- B62 - LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
Information Patent Grant
Torque control of hydraulic motors
- Patent number 4,195,479
- Issue date Apr 1, 1980
- Caterpillar Tractor Co.
- Joseph E. Dezelan
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information Patent Grant
Motor displacement control system
- Patent number 4,191,017
- Issue date Mar 4, 1980
- Caterpillar Tractor Co.
- Joseph E. Dezelan
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information Patent Grant
Load signal control of hydraulic motor displacement
- Patent number 4,189,920
- Issue date Feb 26, 1980
- Caterpillar Tractor Co.
- Joseph E. Dezelan
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information Patent Grant
Torque limiting control for front wheel drive
- Patent number 4,174,614
- Issue date Nov 20, 1979
- Caterpillar Tractor Co.
- Joseph E. Dezelan
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information Patent Grant
Locking mechanism for movable vehicle members
- Patent number 4,132,290
- Issue date Jan 2, 1979
- Caterpillar Tractor Co.
- Joseph E. Dezelan
- E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING
Information Patent Grant
Pump upgrading system
- Patent number 4,107,924
- Issue date Aug 22, 1978
- Caterpillar Tractor Co.
- Joseph E. Dezelan
- F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
Information Patent Grant
Responsive pilot-operated control valve for front wheel drive
- Patent number 4,099,588
- Issue date Jul 11, 1978
- Caterpillar Tractor Co.
- Joseph Edward Dezelan
- B60 - VEHICLES IN GENERAL
Information Patent Grant
Motor grader or the like with hydraulic control system for circle gear
- Patent number 4,084,644
- Issue date Apr 18, 1978
- Caterpillar Tractor Co.
- Carroll R. Cole
- E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING
Information Patent Grant
Hydro-electrical priority valve and speed control circuit
- Patent number 4,077,484
- Issue date Mar 7, 1978
- Caterpillar Tractor Co.
- Joseph E. Dezelan
- B60 - VEHICLES IN GENERAL
Information Patent Grant
Auxiliary hydrostatic front wheel drive system
- Patent number 4,069,886
- Issue date Jan 24, 1978
- Caterpillar Tractor Co.
- John J. Campbell
- B60 - VEHICLES IN GENERAL
Information Patent Grant
Blade lift float circuit for motor graders
- Patent number 4,034,815
- Issue date Jul 12, 1977
- Caterpillar Tractor Co.
- Joseph E. Dezelan
- E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING
Information Patent Grant
Combined automatic and manual hydraulic control for motor grader blade
- Patent number 4,019,585
- Issue date Apr 26, 1977
- Caterpillar Tractor Co.
- Joseph Edward Dezelan
- E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING
Information Patent Grant
Combined unloading and relief valve for pump unloading circuit
- Patent number 4,017,221
- Issue date Apr 12, 1977
- Caterpillar Tractor Co.
- Joseph E. Dezelan
- F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
Information Patent Grant
Auxiliary hydrostatic front wheel drive system
- Patent number 3,997,017
- Issue date Dec 14, 1976
- Caterpillar Tractor Co.
- John A. Campbell
- B60 - VEHICLES IN GENERAL
Information Patent Grant
Combination hydraulic and mechanical suspension system
- Patent number 3,992,035
- Issue date Nov 16, 1976
- Caterpillar Tractor Co.
- Joseph E. Dezelan
- B60 - VEHICLES IN GENERAL
Information Patent Grant
Suspension and load leveling for an urban hauler
- Patent number 3,970,327
- Issue date Jul 20, 1976
- Caterpillar Tractor Co.
- Joseph E. Dezelan
- B60 - VEHICLES IN GENERAL
Information Patent Grant
Pilot pump bleed control for earthmoving scrapers
- Patent number 3,935,792
- Issue date Feb 3, 1976
- Caterpillar Tractor Co.
- Joseph E. Dezelan
- E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING

Joseph E. Dezelan

Person

Patents Grantslast 30 patents

Electro-hydraulic quick drop circuit

Flow control valve assembly wth quick response

Load sensing steering

Selectively actuatable fluid control system for a work element

Variable displacement front wheel drive system

Closed center emergency steering with accumulator source

Torque control of hydraulic motors

Motor displacement control system

Load signal control of hydraulic motor displacement

Torque limiting control for front wheel drive

Locking mechanism for movable vehicle members

Pump upgrading system

Responsive pilot-operated control valve for front wheel drive

Motor grader or the like with hydraulic control system for circle gear

Hydro-electrical priority valve and speed control circuit

Auxiliary hydrostatic front wheel drive system

Blade lift float circuit for motor graders

Combined automatic and manual hydraulic control for motor grader blade

Combined unloading and relief valve for pump unloading circuit

Auxiliary hydrostatic front wheel drive system

Combination hydraulic and mechanical suspension system

Suspension and load leveling for an urban hauler

Pilot pump bleed control for earthmoving scrapers