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:
Sep. 10, 1991
Filed:
Sep. 27, 1989
Alain Frizot, Montcenis, FR;
Framatome, Courbevoie, FR;
Abstract
Apparatus for screwing on and off a clamp nut (5) and an extension piece (13) facing the clamp nut. The extension piece (13) of each of plurality of connection members (2) cooperates with a ring (1) for simultaneously tensioning the connection members. The apparatus includes a carriage (20) for guiding and displacing the apparatus around the ring (1) tensioning the connection member (2), a disengageable system (30) for displacing and rotationally driving the extension piece (13) which is to be screwed on or off, and a disengageable system (40) for rotationally driving the clamp nut (5) which is to be screwed on or off. These systems are supported by the carriage (20) and are displaceable along an axis parallel to the axis of the connection member (2) and at a speed identical to that of the nut (5) or of the extension piece (13) in the course of its screwing or unscrewing.