Window and door lock

A lock for interior use for locking sliding windows and doors to prevent greater security and safety. The lock is provided with a pivotal blocker-arm that blocks movement of the sliding member of the window or door. A locking lever locks the blocker-arm in its locking state until released by a sprin...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	CATER, SR., LEAVIE
Format:	Patent
Sprache:	eng
Schlagworte:	ACCESSORIES THEREFOR FIXED CONSTRUCTIONS GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS HANDCUFFS KEYS LOCKS SAFES TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION TECHNICAL SUBJECTS COVERED BY FORMER USPC TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ARTCOLLECTIONS [XRACs] AND DIGESTS WINDOW OR DOOR FITTINGS
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Beschreibung
Zusammenfassung:	A lock for interior use for locking sliding windows and doors to prevent greater security and safety. The lock is provided with a pivotal blocker-arm that blocks movement of the sliding member of the window or door. A locking lever locks the blocker-arm in its locking state until released by a spring-biassed latching lever. A protective pivotal shield is provided that prevents access to the locking lever to prevent the unlocking thereof regardless of the position of the latching lever, and which allows access to the locking lever in a second state to allow unlocking of the locking lever but denying unlatching of the latching lever. The locking lever can only be unlocked if the latching lever is first unlatched followed by the positioning of the shield in its second state adjacent the latching lever.