Paul Scott Keeling

US Patent:

6564686, May 20, 2003

Filed:

Aug 11, 2000

Appl. No.:

09/638131

Inventors:

Paul S. Keeling - Edmond OK
Brian F. Loader - Salem UT

Assignee:

UTeC Corporation, L.L.C. - Oklahoma City OK

International Classification:

F42B 3087

US Classification:

86 2015, 102313, 102319, 166 63, 175 452

Abstract:

A method and apparatus for placement of continuous pre-split, gel explosive in an elongated borehole or cavity. An anchor is attached to one end of a selected length of continuous gel explosive. A suitable anchor is a flexible, plastic âpilgrims hatâ with a hole in the narrow, closed end. The size of the anchor depends on the width of the borehole; the flared skirt should be narrow enough to permit insertion of the anchor into the hole but wide enough to resist removal. One end of the explosive charge is pressed through the hole in the anchor. The remainder of the length of explosive is placed inside a tubular member, such as PVC pipe. The loaded pipe then is inserted into the borehole or cavity with the anchor leading. The pipe is used to push the anchor back into the hole to the desired depth. Then, the pipe is withdrawn.

US Patent:

6722251, Apr 20, 2004

Filed:

Oct 31, 2002

Appl. No.:

10/286322

Inventors:

Paul S. Keeling - Edmond OK
Brian F. Loader - Salem UT

Assignee:

UTeC Corporation, L.L.C. - Riverton KS

International Classification:

F42B 3087

US Classification:

86 2015, 102313, 102319, 102322, 166 63, 175 452

Abstract:

A method and apparatus for placement of continuous pre-split, gel explosive in an elongated borehole or cavity. An anchor is attached to one end of a selected length of continuous gel explosive. A suitable anchor is a flexible, plastic âpilgrims hatâ with a hole in the narrow, closed end. The size of the anchor depends on the width of the borehole; the flared skirt should be narrow enough to permit insertion of the anchor into the hole but wide enough to resist removal. One end of the explosive charge is pressed through the hole in the anchor. The remainder of the length of explosive is placed inside a tubular member, such as PVC pipe. The loaded pipe then is inserted into the borehole or cavity with the anchor leading. The pipe is used to push the anchor back into the hole to the desired depth. Then, the pipe is withdrawn.

US Patent:

7258054, Aug 21, 2007

Filed:

Mar 4, 2004

Appl. No.:

10/793294

Inventors:

Paul S. Keeling - Edmond OK, US
Brian F. Loader - Salem UT, US

Assignee:

UTeC Corporation, LLC - Riverton KS

International Classification:

F42B 3/087

US Classification:

86 2015, 102313, 102319, 166 63, 175 452

Abstract:

A method and apparatus for placement of continuous pre-split, gel explosive in an elongated borehole or cavity. An anchor is attached to one end of a selected length of continuous gel explosive. A suitable anchor is a flexible, plastic “pilgrim's hat” with a hole in the narrow, closed end. The size of the anchor depends on the width of the borehole; the flared skirt should be narrow enough to permit insertion of the anchor into the hole but wide enough to resist removal. One end of the explosive charge is pressed through the hole in the anchor. The remainder of the length of explosive is placed inside a tubular member, such as PVC pipe. The loaded pipe then is inserted into the borehole or cavity with the anchor leading. The pipe is used to push the anchor back into the hole to the desired depth. Then, the pipe is withdrawn.

US Patent:

57638160, Jun 9, 1998

Filed:

Jul 26, 1996

Appl. No.:

8/687861

Inventors:

Paul Scott Keeling - Edmond OK

Assignee:

Slurry Explosive Corporation - Oklahoma City OK

International Classification:

F42B 300
F42B 700
C06C 506

US Classification:

102322

Abstract:

An explosive primer designed for use with a fuse cord and an initiating device. The primer consists of a container, which holds the explosive, and a cap received on the open end of the container. The container has two lateral opposing cord tunnels which run the length of the container. The cord tunnels protect the fuse cord on the inside of the primer. The cap has two apertures which align with cord tunnels in the container. The cap has capwell for receiving the detonator. The capwell is pierceable so that a detonator can be inserted through the capwell and embedded directly in the explosive composition inside the container. In addition, the primer contains grooves in the bottom of the container and in the cap. The grooves communicate with the apertures and the recess in the cap and the cord tunnels to create a continuous conduit so that a fuse cord can be threaded therethrough to secure the cord to the primer and selectively position the primer in a borehole at the blast site.