Securities code: 002671 securities abbreviation: Shandong Longquan Pipeline Engineering Co.Ltd(002671) Announcement No.: 2022-007
Shandong Longquan Pipeline Engineering Co.Ltd(002671)
Announcement on obtaining patent certificate
The company and all members of the board of directors guarantee that the information disclosed is true, accurate and complete without false records, misleading statements or major omissions.
Shandong Longquan Pipeline Engineering Co.Ltd(002671) (hereinafter referred to as “the company”) and its wholly-owned subsidiary Longquan Trenchless Pipeline Technology (Jiangsu) Co., Ltd. recently obtained the patent certificate issued by the State Intellectual Property Office. The details are as follows:
Serial patent No. patent name patent application date validity Certificate No
Number type
Practical with HDPE lining
1 zl202121631699.3 and the new reinforced concrete pipeline patent No. 15567854 in 10 years of 2021.7.19 with double sealing interface
Practical for strengthening small diameter
2 zl202121875232.3 centrifugal spraying of pipeline new equipment patent No. 15654341 in August 11, 2021
The patentee of the above first patent is Shandong Longquan Pipeline Engineering Co.Ltd(002671) ; The patentee of the second patent is Shandong Longquan Pipeline Engineering Co.Ltd(002671) , Longquan Trenchless Pipeline Technology (Jiangsu) Co., Ltd.
“Reinforced concrete pipeline with HDPE lining and double sealing interface”, the utility model discloses a reinforced concrete pipeline with HDPE lining and double sealing interface. The HDPE lining can isolate the contact between sewage and pipeline concrete, reduce the sludge accumulation in the pipeline and reduce the corrosion of microorganisms on the inner wall. During pipeline installation, the inner wall of the socket is sealed with a waterproof ring with sealing rubber ring, and the lining of the pipe socket does not need welding treatment. The double sealing structure can not only ensure the installation quality of the interface, improve the installation efficiency and interface sealing performance, but also improve the long-term performance of the interface and pipe;
“Centrifugal spraying equipment for strengthening small diameter pipeline”, the rotary nozzle of the utility model can cooperate with the camera after being controlled by the control module, so as to realize the spraying and reinforcement of local defects in the pipeline, and further improve the applicability of the repair of the inner wall of the Trenchless Pipeline.
The acquisition of the above patent certificates will not have a significant impact on the production and operation of the company and its subsidiaries, but it is conducive to give full play to the advantages of the company’s independent intellectual property rights, promote technological innovation and enhance the company’s competitiveness to a certain extent.
It is hereby announced.
Shandong Longquan Pipeline Engineering Co.Ltd(002671) board of directors
February 10, 2022
