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:
Apr. 20, 1993
Filed:
Jun. 17, 1991
Nicolas Bonani, Schifflange, LU;
Edmond Mainz, Bettembourg, LU;
Edouard Sand, Esch/Alzette, LU;
Ernest Sand, Dudelange, LU;
Nicolas Wintersdorf, Esch/Alzette, LU;
Michel Lux, Leudelange, LU;
Francis Gross, Esch/Alzette, LU;
Victor Hutmacher, Niedercorn, LU;
Patrick Peiffer, Rumelange, LU;
Pierre Mailliet, Howald, LU;
Paul Wurth S.A., , LU;
Abstract
The device comprises a gripper with retractable claws which can engage through the tymp and control means which pass through the gripper and can be controlled from outside in order to spread or retract the claws radially with respect to the axis of the tymp. The gripper and its control means are carried by a yoke designed to be fitted onto the outer edge of the tuyere arch and to be associated with a conventional pneumatic explosive-actuated tool which can be fitted to the outside of the yoke, either onto extensions of the claws or onto the control means, in order to exert by its rotation and its bearing on the yoke a tractive force on the claws of the gripper.