Key for flat tumblers

A double bitted key (4) is provided for locks of the type using flat tumblers (32). There is a double bit for each tumbler (32). Each double bit correctly sets its complementary tumbler (32). Each bit includes a flat surface extending along a surface of the key (4). The key (4) has one or more peaks...

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1. Verfasser: RABINOW, JACOB
Format: Patent
Sprache:eng ; fre ; ger
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Zusammenfassung:A double bitted key (4) is provided for locks of the type using flat tumblers (32). There is a double bit for each tumbler (32). Each double bit correctly sets its complementary tumbler (32). Each bit includes a flat surface extending along a surface of the key (4). The key (4) 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 (W) of a tumbler (32). 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 (W) of a tumbler (32). A peak has a flat surface extending along the key (4) for a distance about equal to the thickness (W) of a tumbler (32).