Locks – Operating mechanism – Key
Patent
1988-02-04
1989-05-02
Wolfe, Robert L.
Locks
Operating mechanism
Key
70406, 70409, E05B 1514, E05B 1906
Patent
active
048256722
ABSTRACT:
A double bitted key is provided for locks of the type using flat tumblers. There is a double bit for each tumbler. Each double bit corrrectly sets its complementary tumbler. Each bit includes a flat surface extending along a surface of the key. The key has one or more peaks and valleys. When a valley is between two peaks it is a full valley and its flat surface is about three times as long as the thickness of a tumbler. When a valley is between a peak and another valley it is called a hybrid peak-valley and its flat surface has a length along the key which is approximately double the thickness of a tumbler. A peak has a flat surface extending along the key for a distance about equal to the thickness of a tumbler.
REFERENCES:
patent: 799666 (1905-09-01), Oleschak
patent: 1204545 (1916-11-01), Christoph
patent: 1287882 (1918-12-01), Christoph
patent: 1384179 (1921-07-01), Christoph
patent: 1406574 (1922-02-01), Mantanfel
patent: 1725557 (1929-08-01), Baird
patent: 2035181 (1936-03-01), Molinare
patent: 2039126 (1936-04-01), Svoboda
patent: 2696727 (1954-12-01), Schlabach
patent: 3035433 (1962-05-01), Testa
patent: 3499304 (1970-03-01), Naujoks
Dino Suzanne L.
Wolfe Robert L.
LandOfFree
Key for flat tumblers does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Key for flat tumblers, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Key for flat tumblers will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-577011