Patent · US Active

Energy-gathered bundle type nesting plugging and wall reinforcing device and application thereof in karst cave plugging

US10822913B2 · kind B2 · utility

0Cited by

2References

14Claims

0Family size

Assignee

China University of Petroleum—Beijing · CN

Inventors

Yiqun Zhang · Xi'an, CN
Ya LIU · Jiangyin, CN
Gensheng Li · Beijing, CN
Zhongwei Huang · Beijing, CN
Huaizhong Shi · Beijing, CN
Xianzhi Song · Beijing, CN
Mao Sheng · Beijing, CN
Lu Ji · Beijing, CN

Key dates

Filing date	Jan 8, 2019
Grant date	Nov 3, 2020
Priority date	—
Expiry date	Mar 24, 2039

Classification

Technology area (CPC F)Mechanical Engineering; Lighting; Heating
CPC primaryF42D3/00
WIPO fieldCivil engineering
WIPO sectorOther fields

Abstract

A plugging and wall reinforcing device and a method of using thereof. The nesting plugging and wall reinforcing device comprises an external slotted metal pipe and an internal nested blasting tool, wherein the slotted metal pipe has spiral slits or straight slits cut on a pipe wall thereof; the nested blasting tool is a mandrel having a surface provided with a plurality of explosive grooves in which explosives are placed; the slotted metal pipe is disposed around the mandrel, with a movable fit therebetween. The present invention can effectively improve the plugging success rate.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.