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. 02, 1987
Filed:
Feb. 05, 1986
Serge Percebois, Chaumont-en-Vexin, FR;
Christian Romanek, Noailles, FR;
Paul Journee S.A., Courbevoie, FR;
Abstract
A lock assembly comprises a stator, a rotor pivoting in a bore in the stator and a plurality of stator piston/rotor piston pairings which are resiliently urged towards a key channel provided axially in the said rotor for receiving a coded key slidable in said channel and having flats each of which cooperates with one of the said pairings in order to displace the latter against the action of the said resilient means so that the generatrix of separation between each rotor piston and each stator piston of one pairing is at a tangent to the said rotor. The pairs of stator pistons and rotor pistons and their resilient restoring means are preassembled each in a radial bore in the stator. The radial bores are distributed angularly about the axis of the lock in at least one diametrical plane and are closed at their inner end by an abutment which is moved aside during insertion of the rotor. The rotor comprises resilient displaceable abutment means for engagement with said stator to prevent axial movement of the rotor in relation to the stator after entry of said rotor into the stator bore.