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:
Jun. 27, 1978
Filed:
Feb. 18, 1977
Applicant:
Inventor:
Pierre Mailliet, Howald, LU;
Assignee:
S. A. des Anciens Etablissements Paul Worth, Luxembourg, LU;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C21B / ;
U.S. Cl.
CPC ...
266271 ;
Abstract
A blast furnace taphole drilling apparatus is mounted so as to be movable, between the taphole drilling and retracted positions, in an inclined plane. The mounting means for the drilling apparatus permits the vertical and/or angular adjustment of the drill bit and the drill is held in the operative position solely under the influence of hydraulic pressure. Motive fluid for the drill of the taphole drilling apparatus is delivered to the drill, which is mounted for movement along a support beam, either by a rigid conduit system or via flexible conduits which are played out from and rewound on a reel.