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:
Aug. 15, 1989
Filed:
Jan. 12, 1988
Antonio Romano, Padua, IT;
Campagnolo S.p.A., Vincenza, IT;
Abstract
A rear derailing device for bicycle gears comprises a first body intended to be fixed to the frame, a second body, a lower body for driving the bicycle chain, and an articulated parallelogram joint connecting the first body to the second body. The joint has end heads which are connected to the first body and the second body respectively by swivelling hinge connections. The two elements of each hinge connection have facing surfaces with frontal teeth which cooperate with each other to hold the two elements of the hinge connection in a preselected relative position. The elements can be locked in this position by a locking screw arranged to press the facing surfaces against each other.