Invention Grant
- Patent Title: Hydraulic drive system for sand and salt spreaders
- Patent Title (中): 砂和盐撒肥机液压驱动系统
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Application No.: US12885094Application Date: 2010-09-17
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Publication No.: US08398004B2Publication Date: 2013-03-19
- Inventor: Louis C. Harms
- Applicant: Louis C. Harms
- Applicant Address: US OH Cleveland
- Assignee: Parker-Hannifin Corporation
- Current Assignee: Parker-Hannifin Corporation
- Current Assignee Address: US OH Cleveland
- Agency: Renner, Otto, Boisselle & Sklar, LLP
- Main IPC: A01C15/04
- IPC: A01C15/04
Abstract:
A hydraulic drive system for a spreader used to distribute a road surface treatment material, such as sand or salt, across a road surface. The hydraulic drive system enables the use of pressure-compensated proportional control valves in series relationship with the auger and spinner motors, by the provision of small restricted flow passages across the outlets of the valves.
Public/Granted literature
- US20110067391A1 HYDRAULIC DRIVE SYSTEM FOR SAND AND SALT SPREADERS Public/Granted day:2011-03-24
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