Closure fasteners – Bolts – Multiple
Reexamination Certificate
2006-05-09
2006-05-09
Glessner, Brian E. (Department: 3676)
Closure fasteners
Bolts
Multiple
C292S002000, C292S005000, C292S041000, C292S146000, C292SDIG051, C292SDIG055, C292SDIG068
Reexamination Certificate
active
07040672
ABSTRACT:
A bolt lock, especially for control-cabinet doors or similar doors or flaps. The lock comprises a flat-bar bolt that is mounted to move parallel to the edge of the door, preferably within the arc of swing of the door. Disposed on the flat-bar bolt is at least one locking section. A bolt holder is mounted on the frame of the door to receive and hold the locking section. An actuator is provided for longitudinal displacement of the flat-bar bolt between an unlocked and a locked position. To provide a more secure lock that cannot become stuck, there is provided that to form the locking section, at least a portion of a length of the flat-bar bolt is twisted about a longitudinal axis of the bolt such that the twisted portion is disposed at an angle to an orientation of the bolt and provides a locking surface. The bolt holder is provided with a catch that is disposed at the same angle relative to the bolt as is the locking surface, with the catch being adapted to engage over the locking surface.
REFERENCES:
patent: 978963 (1910-12-01), Vance
patent: 1438547 (1922-12-01), O'Connor
patent: 1531321 (1925-03-01), Vance
patent: 2527933 (1950-10-01), Jakeway
patent: 2715746 (1955-08-01), Travis
patent: 2784992 (1957-03-01), Karjala et al.
patent: 5039143 (1991-08-01), Ramsauer
patent: 5201557 (1993-04-01), Schlack
patent: 5219191 (1993-06-01), Wolter
patent: 5887915 (1999-03-01), Ramsauer
patent: 1559707 (1969-10-01), None
patent: 0261268 (1988-03-01), None
patent: 981011 (1949-02-01), None
patent: 1198173 (1958-06-01), None
patent: 2259940 (1993-03-01), None
Beckmannshagen Dirk
Runge Friedhelm
Sauerland Manfred
Becker Robert W.
EMKA Beschlagteile GmbH & Co. KG
Glessner Brian E.
Lugo Carlos
Robert W. Becker & Associates
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