Roger D Skaggs

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.