E - Fixed Constructions – 21 – B
Patent
E - Fixed Constructions
21
B
E21B 7/00 (2006.01) B09C 1/00 (2006.01) E21B 21/01 (2006.01) E21B 21/07 (2006.01)
Patent
CA 2093062
DRILL STRING ENCLOSURE ABSTRACT The drill string enclosure consists of six component parts, including; a top bracket, an upper acrylic cylinder, an acrylic drill casing guide, a lower acrylic cylinder, a bottom bracket, and three flexible ducts. The upper acrylic cylinder is optional based upon the drill string length. The drill string enclosure allows for an efficient drill and sight operation at a hazardous waste site.
Jorgensen Douglas Kay
Kuhns Douglass Jack
Miller Timothy Allen
Wiersholm Otto
Finlayson & Singlehurst
Government Of The United States Of America As Represented By The
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