Abstract: A user of a self-powered electronic combination lock rotates an outer dial to cause generators to generate energy for storage in a capacitor bank. The user then rotates an inner dial to cause a microcontroller to sequentially display a combination of numbers, and presses the inner dial to select a displayed number. The microcontroller determines direction and extent of motion of the inner dial by receiving signals derived from Wiegand sensors placed in proximity to a magnetized disc which rotates integrally with the inner dial, and controls the display of numerals on an LCD display accordingly. When the microcontroller determines that a correct combination has been entered, it activates a motor to move a motor cam to act directly on a locking lever so that the locking lever can engage a drive cam integrally linked with the inner dial, to allow the inner dial to withdraw the lock's bolt.

Abstract: A two movement time lock for bank vault doors and the like including a lock case for enclosing the timer units and a cover having transparent portions through which the dials of the timer units can be viewed. A pivoted integral locking lever of generally inverted distorted "T" shaped configuration has a pair of oppositely extending foot formations to be engaged and moved by trip formations of the timer units and a spring biased lever is interlinked with the locking lever above the pivot for normally positioning the locking lever at a cocked position when timer unit dials are displaced from the zero position.

Abstract: A selectively illuminated digit display combination lock dial assembly to be coupled to the spindle of a combination lock for dialing a lock opening combination of numbers, including a rotatable dial member to dial the numbers of the combination, a dial backup case to be mounted on a security container having a coupling member journaled therein connected with the spindle and with the dial member. The backup case having a sight passage and digit numeric generating and display device located outwardly of the dial member periphery to generate and visually display numbers signifying the dial member angular positions.

Abstract: A key operated rotary core cylinder lock having rotary disc tumblers arranged in a pack with intervening spacer members within a rotary core sleeve normally held against rotation within the lock casing by a locking bar which spans the shear line between the disc tumbler peripheries and the confronting wall of the rotary core sleeve or shell. Gates are provided in the disc tumblers to be aligned by an appropriate key with the locking bar for releasing the plug for rotation, and the spacer members are of a truncated triangular cross-sectional configuration having rounded corners bearing against and positioned by the cylindrical bore in the core sleeve and have flat side portions between the rounded corners and larger radius center openings than the radii of the key openings in the disc tumblers to provide spaces for accommodating foreign matter contaminants. Exposed shackle padlocks incorporating such rotary core cylinder lock components are also disclosed.