Locking system for an enclosure containing electrical equipment

Locks – Special application – For control and machine elements

Patent

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

70 57, 70 77, 70158, 70416, 292251, F16B 4100

Patent

active

047778121

ABSTRACT:
The two-step locking system includes a dual locking unit comprised of a flat plate to which a recessed cover is hinged. The plate has a keeper projecting therefrom and said recessed cover has a slot through which the free end of the keeper extends so that a padlock can be attached to the keeper via a hole therein to prevent the cover from being opened. A sleeve is secured to said plate, the sleeve projecting a lesser distance from the plate than the keeper, so that the sleeve is completely concealed when the cover is closed. A penta-head bolt extends through the plate of the unit into threaded engagement with a tapped hole in a bracket. The plate of the dual locking unit is riveted to one component of a two-component enclosure, and the bracket is riveted to the other component. The tapped hole in the bracket is in registry with the bolt when the two components are mated so as to allow the bolt to be threadedly engaged with the bracket. The bolt can only be removed when the recessed cover is open, and the cover cannot be opened until the padlock has been first removed.

REFERENCES:
patent: 1285093 (1918-11-01), Fishel
patent: 1577292 (1926-03-01), Obreiter
patent: 2046078 (1936-06-01), Marshall
patent: 2285541 (1942-06-01), Swift
patent: 2367127 (1945-01-01), Johansson
patent: 3018127 (1962-01-01), Dobrosielski et al.
patent: 3181523 (1965-05-01), Casey
patent: 3264850 (1966-08-01), Bower
patent: 3343581 (1967-09-01), Martin et al.
patent: 3672190 (1972-06-01), Palazzolo
patent: 3782146 (1974-01-01), Franke
patent: 3784727 (1974-01-01), Haubein
patent: 3888096 (1975-06-01), Huss
patent: 3889993 (1975-06-01), Bright
patent: 3927544 (1975-12-01), Klein
patent: 3996774 (1976-12-01), Best
patent: 4005253 (1977-01-01), Walter
patent: 4107959 (1978-08-01), Skarzynski et al.
patent: 4113291 (1978-09-01), Cameron
patent: 4186843 (1980-02-01), Omori
patent: 4190272 (1980-02-01), Beard
patent: 4286813 (1981-09-01), Wylie
patent: 4313321 (1982-02-01), Wasser
patent: 4326395 (1982-04-01), De Rosa
patent: 4345448 (1982-08-01), Solomon
patent: 4616967 (1986-10-01), Molina

LandOfFree

Say what you really think

Search LandOfFree.com for the USA inventors and patents. Rate them and share your experience with other people.

Rating

Locking system for an enclosure containing electrical equipment does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Locking system for an enclosure containing electrical equipment , we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Locking system for an enclosure containing electrical equipment will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFUS-PAI-O-1187753

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.