Srikrishnan T. Tolappa

Person

Aurora, IL, US

People

Patents Grantslast 30 patents

Information Patent Grant
Hydraulic circuit having pressure equalization during regeneration
- Patent number 6,955,115
- Issue date Oct 18, 2005
- Caterpillar Inc.
- Michael A. A'Hearn
- F15 - FLUID-PRESSURE ACTUATORS HYDRAULICS OR PNEUMATICS IN GENERAL
Information Patent Grant
Pressure-compensated hydraulic circuit with regeneration
- Patent number 6,761,027
- Issue date Jul 13, 2004
- Caterpillar Inc.
- Michael Anthony A'Hearn
- F15 - FLUID-PRESSURE ACTUATORS HYDRAULICS OR PNEUMATICS IN GENERAL
Information Patent Grant
Independent and regenerative mode fluid control system
- Patent number 6,715,403
- Issue date Apr 6, 2004
- Caterpillar Inc.
- Thomas J. Hajek
- F15 - FLUID-PRESSURE ACTUATORS HYDRAULICS OR PNEUMATICS IN GENERAL
Information Patent Grant
Independent and regenerative mode fluid control system
- Patent number 6,701,822
- Issue date Mar 9, 2004
- Caterpillar Inc.
- Thomas J. Hajek
- F15 - FLUID-PRESSURE ACTUATORS HYDRAULICS OR PNEUMATICS IN GENERAL
Information Patent Grant
Hydraulic ride control system
- Patent number 6,357,230
- Issue date Mar 19, 2002
- Caterpillar Inc.
- Michael A. A'Hearn
- E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING
Information Patent Grant
Ride control
- Patent number 6,321,534
- Issue date Nov 27, 2001
- Caterpillar Inc.
- Michael A. A'Hearn
- B60 - VEHICLES IN GENERAL
Information Patent Grant
Control system providing a float condition for a hydraulic cylinder
- Patent number 6,293,181
- Issue date Sep 25, 2001
- Caterpillar Inc.
- Thomas J. Hajek
- F15 - FLUID-PRESSURE ACTUATORS HYDRAULICS OR PNEUMATICS IN GENERAL
Information Patent Grant
Fluid control system with float capability
- Patent number 6,186,044
- Issue date Feb 13, 2001
- Caterpillar Inc.
- Thomas J. Hajek
- F15 - FLUID-PRESSURE ACTUATORS HYDRAULICS OR PNEUMATICS IN GENERAL
Information Patent Grant
Fluid control system having float control
- Patent number 6,173,639
- Issue date Jan 16, 2001
- Caterpillar Inc.
- Michael A. A'Hearn
- F15 - FLUID-PRESSURE ACTUATORS HYDRAULICS OR PNEUMATICS IN GENERAL
Information Patent Grant
Fluid control system with regeneration
- Patent number 6,161,467
- Issue date Dec 19, 2000
- Caterpillar Inc.
- Michael A. A'Hearn
- F15 - FLUID-PRESSURE ACTUATORS HYDRAULICS OR PNEUMATICS IN GENERAL
Information Patent Grant
Poppet valve control with sealing element providing improved load d...
- Patent number 6,089,528
- Issue date Jul 18, 2000
- Caterpillar Inc.
- Thomas J. Hajek
- F15 - FLUID-PRESSURE ACTUATORS HYDRAULICS OR PNEUMATICS IN GENERAL
Information Patent Grant
Valve interface having mismatched radii
- Patent number 5,950,989
- Issue date Sep 14, 1999
- Caterpillar Inc.
- Thomas J. Hajek
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information Patent Grant
Integrated electrohydraulic actuator
- Patent number 5,906,351
- Issue date May 25, 1999
- Caterpillar Inc.
- James A. Aardema
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...

Patents Applicationslast 30 patents

Information Patent Application
Pressure-Compensated hydraulic circuit with regeneration
- Publication number 20040000228
- Publication date Jan 1, 2004
- Caterpillar Inc.
- Michael Anthony A'Hearn
- E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING
Information Patent Application
Independent and regenerative mode fluid control system
- Publication number 20030106423
- Publication date Jun 12, 2003
- Shin Caterpillar Mitsubishi Ltd.
- Thomas J. Hajek
- E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING
Information Patent Application
Independent and regenerative mode fluid control system
- Publication number 20030106422
- Publication date Jun 12, 2003
- Caterpillar Inc.
- Thomas J. Hajek
- E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING

Srikrishnan T. Tolappa

Person

Patents Grantslast 30 patents

Hydraulic circuit having pressure equalization during regeneration

Pressure-compensated hydraulic circuit with regeneration

Independent and regenerative mode fluid control system

Independent and regenerative mode fluid control system

Hydraulic ride control system

Ride control

Control system providing a float condition for a hydraulic cylinder

Fluid control system with float capability

Fluid control system having float control

Fluid control system with regeneration

Poppet valve control with sealing element providing improved load d...

Valve interface having mismatched radii

Integrated electrohydraulic actuator

Patents Applicationslast 30 patents

Pressure-Compensated hydraulic circuit with regeneration

Independent and regenerative mode fluid control system

Independent and regenerative mode fluid control system