Abstract: A bar lock assembly including more than one protective hasp member, and a bar lock that locks together the protective hasp members, wherein the bar lock includes a code-operated locking device mounted in a housing that fits into an internal chamber defined by the protective hasp members, the housing including protrusions that are received in inner grooves of the protective hasp members so as to block movement of the protective hasp members away from each other when the housing of the bar lock is inserted into the internal chamber of the protective hasp members.

Abstract: A combination locking tube comprising a base end cap connected to a base tube having a longitudinal channel and at least one notch contiguous with the channel, at least one locking ring having a longitudinal ring channel, a notch contiguous with the ring channel and an interlocking pin, each locking ring rotatably mounted on the base tube such that the locking ring's notch is positioned over a base tube notch, at least one indicia ring rotatably mounted on a locking ring having a plurality of characters and a plurality of teeth on its outer and inner surfaces, respectively, at least one static ring statically mounted to the base tube having an interlocking pin receptacle and an annular recess, an inner tube having an end cap and at least one pin received within the base tube.

Abstract: A discriminator apparatus and method that discriminates between a unique signal and any other (incorrect) signal. The unique signal is a sequence of events; each event can assume one of two possible event states. Given the unique signal, a maze wheel is allowed to rotate fully in one direction. Given an incorrect signal, both the maze wheel and a pin wheel lock in position.

Abstract: A locking device has an elongated cylindrical member with a central bore, a shaft disposed in the bore including a transversely radial arm, the shaft being movable in the bore and manually grasped for combined rotational and axially slidable movement through a continuous but winding passageway in communication with the bore along its length. Preferably, the cylindrical member is defined by a plurality of annular disks in which individual circumferential slots are formed in each disk and are aligned to be in communication with one another throughout the length of the member to form the passageway and a locking member is disposed in the path of the arm so that engagement by the arm will cause the locking member to be advanced to an unlocked position with respect to another fixed member, such as, the wall of a safe.

Abstract: A manipulation puzzle consisting of rigid or semi-rigid components is disclosed. The puzzle is solved by manipulating the components through a specific sequence of movements, in predetermined order, in accordance with a code employed in the construction of the puzzle. Various interacting components are interchangeable, thereby providing for the construction of "families" of puzzles. The puzzle comprises a plurality of ring members disposed to form a cylinder about a plurality of longitudinal slide members forming an interior cylinder on a common axis with the ring members. The solution is programmed into the elements by a series of pegs on one set of members, and a cooperative set of grooves on the other set of members.

Abstract: A system and method of interlocking objects by the use of locking and blocking pins that longitudinally move through channels when an external directional force field is longitudinally aligned with and applied to the channels inside of which the pins are located. The channels are self-contained within the objects, with at least a portion of one channel extending from one object to the other. The two objects become interlocked, at least with respect to lateral movement, when a locking pin is positioned in these channels so as to simultaneously extend from one object into the other. Removal of this locking pin, and hence the unlocking of the objects, may be preconditioned on the prior movement of other blocking pins in other intersecting channels selectively positioned so as to block the movement of the locking pin or of each other. Hence, a unique sequence of directional forces selectively applied to the locked objects may be required to unlock the objects.

Abstract: Blood identification means. A holder bag is adapted to hold a bag of blood. A coded lock is mounted in the holder bag, the lock being coded for a particular patient. A wrist band attached to the patient provides the code for the lock.

Abstract: There is disclosed a lock mechanism requiring movement through an enabling combination of preselected, sequential positions for operation. The lock mechanism is preferably embodied in a locking box and includes a latch formed with a pair of opposed hooks that capture a retainer of the box cover. The opposed hooks are carried on separate members yieldably interconnected. Release of the lock requires positioning a ball in an actuation cavity to block movement of one of the members, thereby permitting the hooks to be separated, releasing the retainer pin carried by the box cover. The ball is positioned in the actuation cavity by advance through a torturous passageway of a three-dimensional labyrinth within the box. Passageway defining partitions of the labyrinth have apertures at preselected locations to provide the desired, preselected sequential combination of positions.

Abstract: A locking device including a labyrinthic passageway through which a ball may be moved until arriving at a position adjacent an associated locking mechanism that is operable solely in response to the presence of the ball. In an exemplary embodiment, the labyrinthic passageway is concealed in the bottom of an open-topped walled container and the locking mechanism is in communication with a sliding plate member employed to close the container. With the plate member in its closed position and the ball placed at a starting location within the passageway, yet away from the locking mechanism, the container cannot be opened until the ball has been encouraged, by spatial manipulation of the container, to negotiate the labyrinth, arrive at a position adjacent the locking mechanism, and operate same solely by the impression of its weight thereupon.

Abstract: A mechanism for converting predetermined alternating rotational movements to rectilinear movements is embodied in a combination lock having a casing with an elongated recess, a bolt slidably mounted in the casing for axial movement between a retracted unlocked position and a projected locking position, the bolt being non-rotatable in the casing and having an axial cylindrical recess, a cylindrical cam rotatably mounted in the bolt recess and held against axial movement relative to the casing; the cam is formed with grooves in its cylindrical surface inclined in opposite directions lengthwise of the cam and intersecting each other at predetermined positions angularly disposed about the axis of the cam; the bolt mounts an inwardly projecting follower slidably fitting into the cam grooves and means are provided for manually rotating the cam alternately in opposite directions in accordance with the intersections of the grooves to cause the follower to move the bolt axially in the casing.