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. 07, 1989
Filed:
Apr. 25, 1988
Pierre Periou, Cergy Pontoise, FR;
Rockwell-CIM, , FR;
Abstract
The latch comprises a keeper (2), a fork member (3) provided with two branches (7, 8) for retaining the keeper (2), a catch (9) movable to a position for locking the fork member (3) on the keeper (2), and a control lever (12) for the catch (9) for unlocking the fork member (3). The lever (12) is connected to an outer or inner opening control (13, 14) and is associated with an electric deactivating circuit comprising switches (25, 26) and an electromechanism so arranged that an attempt to open in an unauthorized manner after the deactivation of the door causes the closure of one of the switches (25, 26) and the supply of current to the electromechanism which automatically releases the lever (12) from the catch (9) and prevents the unlocking of the latch by the catch. In the event of a breakdown of the supply battery, the lever (12) remains coupled to the catch (9) and permits the opening of the door. FIG. 1.