Locks – Special application – For control and machine elements
Patent
1981-12-07
1984-07-03
Wolfe, Robert L.
Locks
Special application
For control and machine elements
70288, 70299, 70311, 70319, E05B 3716
Patent
active
044571470
ABSTRACT:
A combination lock has an array of combination elements that are each movable between first and second positions. Each element 25 has to be in a preselected one of the two positions for the lock to open, and the combination is entered by either moving or not moving each element from an intial or reset position. Then a reader 30 adjacent the elements 25 is simultaneously moved against all the elements to test their positions. Any element not in the proper position blocks the reader from movement; but if all the elements are in their preselected positions, they allow the reader to move and the lock to open. Combination elements 25 are preferably arranged concentrically around a spindle 15 having an external knob 16 that can rotate and move the spindle axially. Each of the elements 25 is preferably a slidable plate with an eccentric notch 26 that confronts and overlaps with a radial notch in reader 30. As applied to a door lock 10, the working parts of the lock are mounted inside the door with only operating knob 16 located on the outside. Such an arrangement includes a sliding bolt 20 operated by spindle 15 after correctly completing the combination.
REFERENCES:
patent: 2083782 (1937-02-01), Grubb
patent: 3196643 (1965-07-01), Moss
patent: 3670539 (1972-06-01), Marotte
patent: 3789637 (1974-02-01), Schipper
LandOfFree
Combination lock does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Combination lock, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Combination lock will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1624589