Abstract: An electro-mechanical lock is provided for a door. The lock includes inner and outer lock components mounted on opposite sides of the door and a tube extending between the inner and outer lock components, the tube being configured to receive a spindle extending through the door. The tube includes an electrical conductor integrated with the tube as a one-piece construction for transmitting electrical power and/or control signals between first and second electrical connectors at the inner and outer lock components. The tube is less fragile than conventional double tube arrangements in locks and thus can be more easily cut to length and installed at the door, improving reliability and cost effectiveness of methods of installation.

Abstract: An error-proofing combination padlock has a casing assembly, multiple dials, multiple sleeves, a shackle, a locking bolt and a spring. The dials are mounted rotatably inside the casing assembly. The sleeves are mounted rotatably and respectively inside the dials. The shackle is mounted retractably and pivotally on the casing assembly. A locking bolt is mounted slidably through the sleeves. The error-proofing combination padlock prevents dials from rotating except when the shackle is located in the locking (first) position or the combination-resetting (third) position and avoids a new and unintended unlocking combination arising during a resetting operation of the combination.

Abstract: A door bushing system includes bushings formed as part of a molded resin door jamb in an insulated steel shell safe door. The mold for the door jamb is designed to form as many bushings as are required and can also form stubs or sleeves for mounting other safe components. The bushings can support parts of such components as combination locks, key locks, and door handles. The combination lock and the handle have spindles whose opposite ends have identical configurations to facilitate assembly. The spindles are also made from resinous material to reduce heat transmission and to allow attachment by insert molding. Because the bushings are installed automatically with the door jamb, this door bushing system eliminates the need for separate installation of bushings after assembly of the door, ensuring proper alignment and reducing costs.

Abstract: A combination padlock comprises a housing, a shackle, and a numbered wheel set. The housing is made up of a front housing and a rear housing. The shackle has a hooked portion and a rod-shaped body. The numbered wheel set comprises a seat on which a locking mechanism is disposed for actuating a movable grid plate to move up and down. The front housing is provided with a receiving cell having a position restricting block, whereas the rear housing is provided with a receiving cell having a position restricting block and a retaining block. The position restricting block is intended to confine the rod-shaped body of the shackle while the retaining block is engageable with the retaining recess of the rod-shaped body of the shackle at such time when the shackle is pulled upwards.

Abstract: A combination lock/deadbolt assembly connection technique is disclosed for connecting the bolt of the combination lock to the deadbolt of the deadbolt assembly to provide a lost motion connection while at the same time to retain the ability to position a magnetic anti-attack interlock within the bolt of the combination lock. A connecting shaft is disposed between the bolt and the deadbolt and a spring bias force introduced between the two bolts. The shaft may be attached rigidly at one end to either the lock bolt or deadbolt. The opposite end is loosely attached by retaining rings or retaining rings to accommodate the movement of the loosely attached bolt with respect to the shaft thereby providing a lost motion connection. A compression spring is disposed intermediate to the lock bolt and the deadbolt to provide a separating or extending force.

Abstract: A dead bolt assembly for use with a combination dial lock assembly includes a housing structure adapted to receive a combination dial lock assembly. The housing structure includes a bolt hold back assembly which prevents extension of a dead bolt into a door strike. The bolt hold back assembly is operable from the inside of the door preventing manipulation of the combination dial on the outside of the door. Arranging the bolt hold back assembly in the housing permits ease of replacement and/or repair of standard or off the shelf type combination locks with the dead bolt assembly. The dead bolt assembly also includes a spring loaded pin arrangement which avoids a lockout situation. The housing structure includes a slot in the back plate which facilitates installation and/or removal of a combination dial lock assembly by permitting the lock shaft to slide into the housing structure without requiring removal of the combination dial or lock casing.

Abstract: A combination lock includes a housing, amount upon which is mounted first and second slide members, and a spring plate. The first slide member carries a stop stud that engages a closing lug as the first member shifts under spring bias in a plane from an open to a closed position. The second slide member is coupled with the first member and shifts in a plane substantially parallel with that of the first member. Additionally, the second member contains recesses capable of accommodating a tumbler disc that enables shiftable motion of the second member only when a cam on the tumbler is aligned with grooves in the mount. The tumbler disc connects with toothed structure on a combination setting wheel, and the spring plate contains respective fingers for biasing the setting wheel against the tumbler and for engaging catch recesses on the setting wheel. The spring plate further contains a finger for biasing the locking lug for ejection from the housing.

Abstract: A combination lock of strap buckle includes a female lock body secured on a first end portion of a strap or belt; a male buckle secured on a second end portion of the strap engageable with the female lock body for fastening the two end portions of the strap; and a plurality of sleeves coupled with a plurality of dials, having a plurality of numerals annularly formed on each dial, rotatably mounted in the female lock body for operatively locking the male buckle in the female lock body, whereby upon a rotation of the dials from a locking combination to an unlocking combination, the male buckle will be unbuckled from the female lock body for an unlocking operation, thereby providing a combination lock for the strap buckle by omitting a key and a key-actuated safety lock for increasing locking or unlocking convenience of the strap buckle.

Abstract: A combination lock assembly for safes in which the combination can be easily reset without dismantling the assembly or changing its original adjustment for smoothness and consistency of tumbler wheel motion. The tumbler wheel and spacing washer components of the assembly are all mounted on a bushing that also includes an end cap. The tumblers and spacers are spring biased by a wave washer so that the drive tumbler, which includes a plurality of angularly spaced holes, presses against the end cap. One of the holes is aligned with a drive stud on the drive cam that is used to position the tumblers. In the event the drive tumbler should receive uneven pressure from the drive studs (e.g., due to improper alignment of the safe's drive spindle), the tumbler wheels and washers are all held together by the bias of the wave washer and are maintained with their engagement surfaces parallel with each other, permitting proper operation without undesirable wear.

Abstract: A universal lock mount for use with a variety of different types of safe locks. It includes an integral resin structure having a bushing portion and a mounting plate portion. The bushing portion supports lock components, and the mount also includes a retaining cap which is fused to the outer end of the bushing portion to hold the components as an independent assembly. Resin spacing washers minimize wear and provide for smoothness and consistency in the movement of the lock assembly components. Use of the mount permits the lock components to be preassembled, tested and adjusted prior to installation so that the resulting assembly functions as an independent lock element. The universal mount also facilitates security of the safe. Because the assembly is independent of the spindle/driver mechanism used to position its components, removal or destruction of the spindle/driver mechanism does not affect the components supported on the universal mount, and the safe remains locked.

Abstract: A bushing 10 for a safe door combination lock supports a spindle 20 extending through inner and outer door walls 13 and 12 separated by a space filled with insulation. A stub 15 secured in a hole 17 in the inner wall 13 by a rotational rivet 16 has an axial bore hole and a machined periphery for receiving components of the combination lock. A thin walled tube 11 extends through the bore hole in stub 15 and through the space between the inner and outer walls. An outer end of tube 11 is flared against an outer surface of outer wall 12 and an inner end of tube 11 is flared against an inner end of stub 15. Tube 11 then receives spindle 20 for the combination lock without providing a large heat conductor through the interior of the safe. Also, if tube 11 and spindle 20 are driven into the interior of the safe with a punch, stub 15 retains the tumbler wheels of the combination lock to keep the lock secure.

Abstract: The combination can be set by discs which are toothed on one of their faces. This toothing causes movement of internal bushes or rings which are at least partly contained in seats in a manually controllable slider, which can be moved against a spring when, having set the exact combination, a radial passage in said bushes or rings becomes disposed in a position such as to allow radial movement of the bushes and thus movement of the slider and opening of the lock. The combination can be changed by setting the existing combination and moving the slider and thus the rings, so that these latter disengage from the toothed discs which can thus be rotated into another position without dragging the bushes with them.

Abstract: A tubular wheel type key lock operable by a key, comprising a lock case, a plurality of peripherally gated tumbler wheels supported for rotation about a common axis. Each tumbler wheel include center hub portions and rim portions encircling the hub portions. Supporting formations are interposed between successive adjacent pairs of tumbler wheels defining spacers to rotatably support the tumbler wheels about a common center axis. A control cam mechanism is rotatable by a key and has means to link with a fence lever for retracting a bolt at a predetermined position of the tumbler wheels.