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.

Date of Patent:
Feb. 19, 2002

Filed:

Apr. 09, 1999
Applicant:
Inventors:

John D. Watson, Evergreen, CO (US);

Paul Krogh, Fremont, CA (US);

David B. Carnegie-Smith, Lesmurdie, AU;

Mihailo Gavrilovic, Denver, CO (US);

Ockert R. Fourie, Lesmurdie, AU;

Assignee:

BeckTek Limited, Pinjarra, AU;

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
E21C 4/116 ; E21C 4/506 ; F24D 3/04 ;
U.S. Cl.
CPC ...
E21C 4/116 ; E21C 4/506 ; F24D 3/04 ;
Abstract

The present invention is directed to a boom supporting a slide assembly. The slide assembly includes a guide track, a drill, and a stemming member for use in small charge blasting. The drill is initially moved along the guide track to form the drill hole. After the hole is completed, the drill is retracted along the guide track, and the stemming member is moved along the guide track and placed in the drill hole. After the stemming member fractures the rock, the stemming member is retracted along the guide track and the steps repeated to break new material. The stemming member has a breech and barrel that are located in the hole. The breech is either side- or front-discharging.


Find Patent Forward Citations

Watson, John. (2002). Slide assembly having retractable gas-generator apparatus (U.S. Patent No. 6347837). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/6347837

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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