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Class Information
Number: 102/304
Name: Ammunition and explosives > Blasting > Blasting plug including an opening for a fuse, fuse ignitor, or explosive
Description: Subject matter which includes means to seal the opening of a blast hole having a passageway for (a) a fuse cord or fuse ignitor, or (b) supplying or holding an explosive in the plug or blast hole.










Patents under this class:

Patent Number Title Of Patent Date Issued
8413583 Hole covering and locator Apr. 9, 2013
8365665 Fireworks igniter system and method Feb. 5, 2013
8342095 Self-stemming cartridge Jan. 1, 2013
8136449 Explosive powder plug and method of using the same Mar. 20, 2012
8091478 System and method for electronically discriminating a target Jan. 10, 2012
7640857 Protective electrically conductive layer covering a reactive layer to protect the reactive layer from electrical discharge Jan. 5, 2010
7363860 Non-explosive two component initiator Apr. 29, 2008
6502631 Reinforced borehole plugs Jan. 7, 2003
6363828 Shock driven projectile device Apr. 2, 2002
6213212 Spherical stemming plug and method of use Apr. 10, 2001
4947751 Multi-directional initiator for explosives Aug. 14, 1990
4587904 Debris free plug assembly for heat exchange tubes May. 13, 1986
4449754 Device for breaking monolithic structures by pulsewise liquid pressure May. 22, 1984
4432268 Detonation cut-off device Feb. 21, 1984
4347790 Explosive plug for blocking tubes Sep. 7, 1982
4133247 Carrier for explosive primer and method of using same Jan. 9, 1979
4040330 Method of charging drill holes and means for carrying out the method Aug. 9, 1977
4036100 Apparatus and method for loading fluent explosives in upwardly extending boreholes Jul. 19, 1977
3974656 Method and apparatus for excluding water or other material from a blast hole in rock Aug. 17, 1976
3952656 Device and process Apr. 27, 1976











 
 
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