Roger M Skaggs

US Patent:

7052092, May 30, 2006

Filed:

Nov 19, 2001

Appl. No.:

10/432405

Inventors:

Stephen Mitchell Collinsworth - Stanton KY, US
Nils Alberto Heinke - Elkins WV, US
Roger Dean Skaggs - Bonne Terre MO, US

International Classification:

F24D 1/08
E21C 37/16

US Classification:

299 13, 102333

Abstract:

A blasting arrangement () includes drillholes () in a rock mass (). Blind ends () are drilled to a desired level and, if necessary, are adjusted as shown at () to said level. Each hole () is plugged by means of a plug (), which is protected by non flammable buffer material (), at a level () spaced from the end (). Explosive () is charged above the level () and the hole is tamped, shown at (). The holes are detonated desirably by detonators (), forcing the plugs () downwardly and compressing air in chambers () above the ends (). The weakest part of each hole, around the end (), is split causing a three dimensional zone of weakness at the level of the ends (). Air forced into the zone of weakness causes a fracture zone () at that level, inhibiting propagation of blasting shock waves and protecting the material underneath the level of the ends ().

US Patent:

7387071, Jun 17, 2008

Filed:

Sep 30, 2004

Appl. No.:

10/574324

Inventors:

Nils Alberto Heinke - Elkins WV, US
Roger Dean Skaggs - Bonne Terre MO, US
Stephen Mitchell Collinsworth - Stanton KY, US

Assignee:

International Technologies, LLC - Elkins WV

International Classification:

F42D 3/00

US Classification:

102313, 102333, 299 13

Abstract:

A drill hole () extends into rock to be blasted. A blasting accessory () includes a container portion () for holding a predetermined volume of stemming material, and a spacer () for spacing the stemming material a predetermined distance from a surface, e. g. a blind bottom of the drill hole. The container portion has a top () surrounded by a dilatable, inverted skirt forming a seal (), and forms a support for a blasting substance like an explosive.

US Patent:

20070272109, Nov 29, 2007

Filed:

Sep 30, 2004

Appl. No.:

10/574377

Inventors:

Nils Heinke - Elkins WV, US
Roger Skaggs - Bonne Terre MO, US
Stephen Collinsworth - Stanton KY, US

International Classification:

F42D 1/08

US Classification:

102312000

Abstract:

In blasting rock, a drill hole () is charged with spaced, composite layers (), () at different levels between an open mouth () and a blind bottom (). Each composite layer is supported on a plug (). Flowable plunger material (), e.g. drill cuttings, is supported on the respective plug followed by blast material (), topped by a further layer of plunger material (). The plunger material () at the top, is in the form of tamping. The composite layers are spaced respectively from one another and optionally, from the bottom (). Initiators () can be actuated by means of a controller to initiate the blasting material to displace the layers of plunger material at speed to collide, e.g. with the bottom and with one another to concentrate enemy at the collision sites.

US Patent:

20130075162, Mar 28, 2013

Filed:

Sep 22, 2011

Appl. No.:

13/239660

Inventors:

Roger D. Skaggs - Farmington MO, US

International Classification:

E21B 7/00
E21B 10/08

US Classification:

175 57, 175340

Abstract:

A roller cone bit is described. The roller cone bit includes a body having concave sides. Legs are attached or integral to the body. Roller cones are rotatably engaged to the legs. The concave sides are positioned adjacent the legs. A nozzle is positioned in an approximately central portion of the body.

US Patent:

20140069722, Mar 13, 2014

Filed:

Sep 12, 2012

Appl. No.:

13/611760

Inventors:

Roger D. Skaggs - Farmington MO, US

International Classification:

E21B 10/38
E21B 10/36
E21B 7/00

US Classification:

175 57, 175415

Abstract:

A hammer bit is herein described with tapered lateral sides and a modified face section. The tapered lateral sides taper inward towards a rear portion of the hammer bit. The modified face section includes a gauge portion and a larger angled or heel portion. The hammer bit provides improved penetration and directional control for drilling into the earth.

US Patent:

56474482, Jul 15, 1997

Filed:

Jan 11, 1996

Appl. No.:

8/585025

Inventors:

Roger Dean Skaggs - Bonne Terre MO

International Classification:

E21B 1042
E02F 300

US Classification:

175421

Abstract:

A drill bit for placement on a trenchless drill, the drill bit having a substantially rectangular construction, opposed side edges, a front end edge angularly related to the side edges, and a back end edge opposite the front end edge, opposed faces, with the edges having holes located therein and a cutting tooth press punched into each of the holes to form interference fits between the cutting teeth and the drill bit, the drill bit further having mechanism for attachment of the drill bit to the trenchless drill.

US Patent:

49536427, Sep 4, 1990

Filed:

Mar 20, 1989

Appl. No.:

7/326079

Inventors:

Roger D. Skaggs - Bonne Terre MO

International Classification:

E21B 1044
E21B 1060

US Classification:

175393

Abstract:

A rock drill bit having an elongated tubular body with a drilling head portion at one end and a trailing opposite end portion, the head end portion having attached hardened portions for engaging and drilling a work surface, at least one opening through the head end portion for drilling fluid to pass therethrough to the region of the drill face, at least one side of the bit having an axially extending cutout therealong forming an elongated passage with the surface of a bore being drilled through which the drilling fluid and drilling residue carried thereby can pass as it moves rearwardly along the drill bit away from the drill face, and transversely extending grooves formed in the portions of the body between the cutouts dividing the portions into a plurality of spaced outwardly extending body portions.