System and method for mixing stone-plastic floor base material

US11179685B2 · kind B2 · utility

Assignee

• CENTRAL SOUTH UNIVERSITY OF FORESTRY AND TECHNOLOGY · CN

Inventors

• Xingong Li · Cranbury, US
• Yixu Yang · Hunan, CN
• Yiqiang Wu · Changsha, CN
• Xia Zheng · Hunan, CN
• Yan QING · Changsha, CN
• Yingfeng Zuo · Changsha, CN
• Ming-Chang Liu · San Jose, US

Key dates

• Filing date: Oct 4, 2019
• Grant date: Nov 23, 2021
• Expiry date: Aug 6, 2040

Classification

• Technology area (CPC B): Performing Operations; Transporting
• CPC primary: B01F2035/99
• WIPO field: Chemical engineering
• WIPO sector: Chemistry

Abstract

A solenoid valve includes a main valve, a first auxiliary valve, a second auxiliary valve, a main valve body, and an auxiliary valve body. The main and auxiliary valve bodies are axially parallel and detachably connected. The main valve is mounted on the main valve body, the first and second auxiliary valves are mounted on the auxiliary valve body, which is provided with an air inlet, a cylinder port and an air discharging port. The air inlet communicates with the main valve through a first air passage. The cylinder port is sequentially in communication with the first and second auxiliary valves and the main valve through a second air passage. The air discharging port sequentially communicates with the first and second auxiliary valves and the main valve through a third air passage. The main and second auxiliary valves are solenoid valves. The first auxiliary valve is a hand-operated valve.