The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Aug. 29, 2017
Filed:
Aug. 17, 2012
Jian Qiang, Xi'an, CN;
Yanbin Yang, Xi'an, CN;
Zhengjun Lei, Xi'an, CN;
XI'AN J&R FIRE FIGHTING EQUIPMENT CO., LTD., Shaanxi, CN;
Abstract
A portable fire extinguishing apparatus, which comprises a casing () and a cartridge () arranged inside the casing (). The top end of the cartridge () is fixedly connected with the casing () through a snap ring (); the bottom of the cartridge () is fixedly connected with the casing () through some nuts and bolts; and an explosion venting unit () is arranged at the jet end of the cartridge (). Kinetic energy generated from explosion is consumed through shifting and limiting processes of the explosion venting units (), therefore recoil force or forward impact force generated after explosion of explosives can be consumed or released, so that safe and effective explosion venting is achieved and hurt to human bodies or articles after explosion of grains is avoided.