Louis C. Harms

Person

Evanston, IL, US

People

Patents Grantslast 30 patents

Information Patent Grant
Hydraulic drive system for sand and salt spreaders
- Patent number 8,398,004
- Issue date Mar 19, 2013
- Parker-Hannifin Corporation
- Louis C. Harms
- F15 - FLUID-PRESSURE ACTUATORS HYDRAULICS OR PNEUMATICS IN GENERAL
Information Patent Grant
Proportional pressure control valve
- Patent number 6,926,033
- Issue date Aug 9, 2005
- Parker-Hannifin Corp.
- Louis C. Harms
- F15 - FLUID-PRESSURE ACTUATORS HYDRAULICS OR PNEUMATICS IN GENERAL
Information Patent Grant
Proportional pressure control valve
- Patent number 6,571,828
- Issue date Jun 3, 2003
- Parker-Hannifin Corporation
- Louis C. Harms
- F15 - FLUID-PRESSURE ACTUATORS HYDRAULICS OR PNEUMATICS IN GENERAL
Information Patent Grant
Control valve with mechanical feedback and method for controlling f...
- Patent number 6,481,463
- Issue date Nov 19, 2002
- Parker-Hannifin Corporation
- Louis C. Harms
- F15 - FLUID-PRESSURE ACTUATORS HYDRAULICS OR PNEUMATICS IN GENERAL
Information Patent Grant
High force solenoid valve and method of improved solenoid valve per...
- Patent number 6,422,533
- Issue date Jul 23, 2002
- Parker-Hannifin Corporation
- Louis C. Harms
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information Patent Grant
Proportional pressure control valve
- Patent number 6,405,746
- Issue date Jun 18, 2002
- Parker-Hannifin Corporation
- Louis C. Harms
- G05 - CONTROLLING REGULATING
Information Patent Grant
Proportional pressure control valve
- Patent number 6,286,535
- Issue date Sep 11, 2001
- Parker-Hannifin Corporation
- Louis C. Harms
- G05 - CONTROLLING REGULATING
Information Patent Grant
Proportional pressure control valve
- Patent number 5,836,335
- Issue date Nov 17, 1998
- Fluid Power Industries, Inc.
- Louis C. Harms
- G05 - CONTROLLING REGULATING
Information Patent Grant
High accuracy automatically controlled variable linear seed spacing...
- Patent number 5,598,794
- Issue date Feb 4, 1997
- Fluid Power Industries, Inc.
- Louis C. Harms
- A01 - AGRICULTURE FORESTRY ANIMAL HUSBANDRY HUNTING TRAPPING FISHING
Information Patent Grant
Apparatus and method for detecting leak in hydraulic system
- Patent number 5,461,903
- Issue date Oct 31, 1995
- Fluid Power Industries, Inc.
- Louis C. Harms
- F15 - FLUID-PRESSURE ACTUATORS HYDRAULICS OR PNEUMATICS IN GENERAL
Information Patent Grant
Electrically controlled pressure relief valve system and method
- Patent number 4,873,817
- Issue date Oct 17, 1989
- United Technologies Automotive, Inc.
- Louis C. Harms
- A01 - AGRICULTURE FORESTRY ANIMAL HUSBANDRY HUNTING TRAPPING FISHING
Information Patent Grant
Electrically operated proportional flow control hydraulic valve and...
- Patent number 4,121,610
- Issue date Oct 24, 1978
- AMBAC Industries Incorporated
- Louis C. Harms
- F15 - FLUID-PRESSURE ACTUATORS HYDRAULICS OR PNEUMATICS IN GENERAL

Patents Applicationslast 30 patents

Information Patent Application
HYDRAULIC DRIVE SYSTEM FOR SAND AND SALT SPREADERS
- Publication number 20110067391
- Publication date Mar 24, 2011
- Louis C. Harms
- E01 - CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
Information Patent Application
Proportional pressure control valve
- Publication number 20080017261
- Publication date Jan 24, 2008
- Parker-Hannifin Corporation, an Ohio Corporation
- Louis C. Harms
- G05 - CONTROLLING REGULATING
Information Patent Application
Proportional pressure control valve
- Publication number 20050173008
- Publication date Aug 11, 2005
- Parker-Hannifin Corporation, an Ohio Corporation
- Louis C. Harms
- G05 - CONTROLLING REGULATING
Information Patent Application
PROPORTIONAL PRESSURE CONTROL VALVE
- Publication number 20050087242
- Publication date Apr 28, 2005
- Parker-Hannifin Corporation an Ohio Corporation
- Louis C. Harms
- G05 - CONTROLLING REGULATING
Information Patent Application
Proportional pressure control valve
- Publication number 20030188788
- Publication date Oct 9, 2003
- Louis C. Harms
- G05 - CONTROLLING REGULATING
Information Patent Application
Proportional pressure control valve
- Publication number 20020092573
- Publication date Jul 18, 2002
- Louis C. Harms
- G05 - CONTROLLING REGULATING
Information Patent Application
Proportional pressure control valve
- Publication number 20010052368
- Publication date Dec 20, 2001
- Louis C. Harms
- G05 - CONTROLLING REGULATING

Louis C. Harms

Person

Patents Grantslast 30 patents

Hydraulic drive system for sand and salt spreaders

Proportional pressure control valve

Proportional pressure control valve

Control valve with mechanical feedback and method for controlling f...

High force solenoid valve and method of improved solenoid valve per...

Proportional pressure control valve

Proportional pressure control valve

Proportional pressure control valve

High accuracy automatically controlled variable linear seed spacing...

Apparatus and method for detecting leak in hydraulic system

Electrically controlled pressure relief valve system and method

Electrically operated proportional flow control hydraulic valve and...

Patents Applicationslast 30 patents

HYDRAULIC DRIVE SYSTEM FOR SAND AND SALT SPREADERS

Proportional pressure control valve

Proportional pressure control valve

PROPORTIONAL PRESSURE CONTROL VALVE

Proportional pressure control valve

Proportional pressure control valve

Proportional pressure control valve