Delay blasting cap

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 4369708
SERIAL NO

06077718

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Abstract

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A delay blasting cap having improved uniformity and predictability of delay time, and less susceptible to timing change as a result of a change in the medium or temperature surrounding the cap, has a polyolefin or polyfluorocarbon carrier capsule or tube for the delay charge, and preferably a rigid metal capsule holding the delay charge in place. Preferably, the delay carrier is a polyethylene capsule, which inhibits the priming charge from penetrating into the delay charge during the assembling of the cap.

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Patent Owner(s)

  • ETI CANADA INC.;ETI EXPLOSIVES TECHNOLOGIES INTERNATIONAL (CANADA), LTD., CARRYING ON BUSINESS IN PARTNERSHIP AS ETI EXPLOSIVES;ETI EXPLOSIVES TECHNOLOGIES INTE;ETI EXPLOSIVES TECHNOLOGIES INTERNATIONAL LTD;ETI EXPLOSIVES TECHNOLOGIES INTERNATIONAL LTD. AND ETI EXPLOSIVES TECHNOLOGIES INTERNATIONAL (CANADA), LTD. CARRYING ON BUSINESS IN PARTNERSHIP AS ETI EXPLOSIVES

International Classification(s)

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  • 1979 Application Filing Year
  • F42B Class
  • 132 Applications Filed
  • 6 Patents Issued To-Date
  • 4.55 % Issued To-Date
Click to zoom InYear of Issuance% of Matters IssuedCumulative IssuancesYearly Issuances197919801981198219831984198519861987198819891990199119921993199419951996199719980255075100

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Bryan, Paul J Hewitt, NJ 7 70
Morse, Daniel R Bloomingdale, NJ 1 8

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  • 8 Citation Count
  • F42B Class
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