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.
Patent No.:
Date of Patent:
Jul. 16, 1985
Filed:
Mar. 28, 1984
Applicant:
Inventors:
Bruno H Schmidt, 4000 Dusseldorf 11, DE;
Helmut Becker, 4300 Essen, DE;
Assignee:
Other;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
E21B / ;
U.S. Cl.
CPC ...
175107 ; 175 67 ;
Abstract
Apparatus for drilling geological formations includes a hydraulic motor through which a high pressure fluid is delivered to plural nozzles which define material cutting jets. A portion of the fluid supplied to the motor is diverted and employed to generate a torque which causes the rotation of the rotor of the motor, which is mechanically connected to the drill head which includes the cutting jet defining nozzles, about the motor stator. The apparatus is connected to a source of pressurized fluid and thrust nozzles may be employed to position of the motor and associated drill during the boring operation.