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:
Feb. 22, 1983
Filed:
May. 05, 1981
Jean-Paul Nguyen, Rueil Malmaison, FR;
Emmanuel Laval, Paris, FR;
Andre Cendre, Cosne sur Loire, FR;
Institut Francais du Petrole, Rueil-Malmaison, FR;
Abstract
An auxiliary locking device for a crank connector of the type including two tubular members interconnected by a shaft having an axis of rotation different from the axes of rotation of the two tubular members. The shaft being rotatably secured to one of the two tubular members, and capable of moving between a first rotatably secured position and a second rotatably disengaged position with respect to the other of said two tubular members for causing the other of the two tubular members to rotate about the axis of rotation of the shaft. The rotation about the axis of the shaft defines acute angles between the axes of rotation of the tubular members and the axis of rotation of the shaft at a point where all three axes intersect. An auxiliary locking means includes at least one retractable finger located in a housing in either one of the shaft and the tubular member disengageable from the shaft, and corresponding grooves located in the other of the shaft and tubular member disengageable from the shaft. The at least one retractable finger extending from its housing when the shaft and corresponding tubular member are disengaged so as to engage the grooves to prevent undesired rotation of the disengaged tubular member after having been rotated about a desired angle, until the shaft and disengaged tubular member reengage thereby forcing the retractable finger to disengage the grooves and retract into its housing.