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:
Jun. 04, 2019
Filed:
May. 26, 2015
Applicant:
Austin Star Detonator Company, Cleveland, OH (US);
Inventors:
Bryan E. Papillon, Phoenixville, PA (US);
Larry S. Howe, Norwalk, OH (US);
Gimtong Teowee, Westlake Village, CA (US);
Assignee:
Austin Star Detonator Company, Cleveland, OH (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01V 1/00 (2006.01); G01V 1/06 (2006.01); G01V 1/104 (2006.01); F42D 3/06 (2006.01);
U.S. Cl.
CPC ...
G01V 1/06 (2013.01); F42D 3/06 (2013.01); G01V 1/104 (2013.01); G01V 2210/1299 (2013.01);
Abstract
Seismic blasting methods and apparatus are presented in which detonator confirmation time break (CTB) is accurately determined by maintaining an applied voltage across detonator leg wires following initiation of a firing command or signal and sensing one or more electrical parameters such as voltage and/or current, and selectively identifying a CTB representing a time at which the monitored electrical parameter indicates a successful detonation.