Peter Spring

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Montgomery, IL, US

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Patents Grantslast 30 patents

Information Patent Grant
Hydraulic control system having swing motor energy recovery
- Patent number 9,068,575
- Issue date Jun 30, 2015
- Caterpillar Inc.
- Jiao Zhang
- F15 - FLUID-PRESSURE ACTUATORS HYDRAULICS OR PNEUMATICS IN GENERAL
Information Patent Grant
Hydraulic control system having energy recovery kit
- Patent number 8,919,113
- Issue date Dec 30, 2014
- Caterpillar Inc.
- Pengfei Ma
- F15 - FLUID-PRESSURE ACTUATORS HYDRAULICS OR PNEUMATICS IN GENERAL
Information Patent Grant
Hydraulic control system having swing motor energy recovery
- Patent number 8,850,806
- Issue date Oct 7, 2014
- Caterpillar Inc.
- Jiao Zhang
- F15 - FLUID-PRESSURE ACTUATORS HYDRAULICS OR PNEUMATICS IN GENERAL
Information Patent Grant
Hydraulic system having implement and steering flow sharing
- Patent number 8,756,930
- Issue date Jun 24, 2014
- Caterpillar Inc.
- Bryan A. Johnson
- F15 - FLUID-PRESSURE ACTUATORS HYDRAULICS OR PNEUMATICS IN GENERAL

Patents Applicationslast 30 patents

Information Patent Application
HYDRAULIC CONTROL SYSTEM HAVING ENERGY RECOVERY KIT
- Publication number 20130000094
- Publication date Jan 3, 2013
- Pengfei MA
- E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING
Information Patent Application
HYDRAULIC CONTROL SYSTEM HAVING SWING MOTOR ENERGY RECOVERY
- Publication number 20130004280
- Publication date Jan 3, 2013
- Jiao ZHANG
- E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING
Information Patent Application
HYDRAULIC CONTROL SYSTEM HAVING SWING MOTOR ENERGY RECOVERY
- Publication number 20130000289
- Publication date Jan 3, 2013
- Jiao ZHANG
- E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING
Information Patent Application
HYDRAULIC SYSTEM HAVING IMPLEMENT AND STEERING FLOW SHARING
- Publication number 20110289908
- Publication date Dec 1, 2011
- Bryan A. JOHNSON
- E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING