Closure fasteners – Clamps – Screw and nut
Patent
1994-09-30
1996-02-06
Lindsey, Rodney M.
Closure fasteners
Clamps
Screw and nut
292DIG65, B65D 4530
Patent
active
054891329
ABSTRACT:
A safety latch for securing a cover on a machine integrating a safety swi with a latching swing bolt. The swing bolt for securing the cover pivots between a latched position and an unlatched position. The switch for energizing and de-energizing the machine is switchable between a closed position and an open position. An interlock flag must be moved to a predetermined position before the latch can be released. Moving the flag to the predetermined position causes the safety switch to open, de-energizing the machine. A portion of the swing bolt obstructs the interlock flag from closing the switch, thus preventing the machine from being energized when the cover is unlatched. The swing bolt is preferably threaded and a nut is provided to clamp the threaded swing bolt in the latched position and secure the cover. A shoulder of the interlock flag prevents the nut from being loosened unless the interlock flag is moved to the predetermined position in which the machine is de-energized.
REFERENCES:
patent: 922508 (1909-05-01), Puffer
patent: 1234133 (1917-07-01), Cole
patent: 3655926 (1972-04-01), Meermans
patent: 3907157 (1975-09-01), Beattie
patent: 4825027 (1989-04-01), Yoon
Lindsey Rodney M.
Miller Charles D.
The United States of America as represented by the Secretary of
LandOfFree
Safety latch does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Safety latch, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Safety latch will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2171964