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:
Jan. 23, 2024
Filed:
Jan. 27, 2020
Applicant:
Detnet South Africa (Pty) Ltd, Johannesburg, ZA;
Inventors:
Michiel Jacobus Kruger, Johannesburg, ZA;
Christopher Malcolm Birkin, Centurion, ZA;
Richard Joseph Michna, Barkhamsted, CT (US);
Daniel Auguste Maurissens, Orbe, CH;
Andre Louis Koekemoer, Boksburg, ZA;
Assignee:
DETNET SOUTH AFRICA (PTY) LTD, Johannesburg, ZA;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F42C 7/00 (2006.01); F42C 13/02 (2006.01); F42D 1/04 (2006.01);
U.S. Cl.
CPC ...
F42C 7/00 (2013.01); F42C 13/02 (2013.01); F42D 1/043 (2013.01);
Abstract
A detonator which is responsive to a shock tube event which is validated if a link is fused at a predetermined time interval after a light signal produced by the event is detected and if, at the end of a subsequent time interval, the link is still fused and the light signal is absent.