FIRE DOOR LOCK ASSEMBLY

A fire door lock assembly having a slidable latching bolt which is retained in longitudinal and transverse disposition with minimum surface contacts so as to reduce harmful affects of corrosion which may result from humid or other mildly corrosive environments. The structure employs a guide channel...

Ausführliche Beschreibung

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Bibliographische Detailangaben
1. Verfasser:	NYSTROM J,US
Format:	Patent
Sprache:	eng
Schlagworte:	BOLTS OR FASTENING DEVICES FOR WINGS, SPECIALLY FOR DOORS ORWINDOWS FIXED CONSTRUCTIONS GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS 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 WINDOW OR DOOR FITTINGS
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Beschreibung
Zusammenfassung:	A fire door lock assembly having a slidable latching bolt which is retained in longitudinal and transverse disposition with minimum surface contacts so as to reduce harmful affects of corrosion which may result from humid or other mildly corrosive environments. The structure employs a guide channel for the latching bolt together with a spherical guide ball which is utilized to control the transverse disposition of the bolt within the guide channel. Means are provided for controllably moving the latch from locking disposition to open disposition.