Abstract: A dispenser for controlling the dispensing of a liquid from a container, such as a bottle having an opening through which liquid may be poured, is provided in combination with a bladder insertable within the container and expansible incident to dispensing of liquid for occupying a volume corresponding to that of the dispensed liquid in order to prevent air contamination of any liquid remaining in the container. An improved bladder construction and method of forming same is disclosed.

Abstract: A lock unit for a coin operated locker cabinet or the like incorporates an improved arrangement for permitting a custodian to selectively, releasably retain the lock unit within a cabinet mounting post and to control a patron lock for cabinet door unlocking/locking purposes, while a patron key is removed from the patron lock. The lock unit additionally incorporates an improved coin gauging and counting mechanism adapted to selectively accommodate the lock unit for operation by one or more coins of a given denomination and improved construction for adapting a coin chute to coins of different diameters.

Abstract: A coin counting and release mechanism is disclosed for use in adapting coin operated lock units for multiple coin operation, wherein only a last deposited coin of a preselected number of coins of a given size or denomination is actually retained within the lock unit for sensing purposes and all previously deposited coins of such size or of a smaller size being permitted to pass freely downwardly through the lock unit in order to avoid the possibility of an improper coin sensing operation or jamming of the lock unit as a result of insertion of improperly sized coins. In an alternative construction the mechanism is adjustable to selectively vary the preselected number of coins required for operation of a lock unit.

Abstract: An improved coin operated lock unit and arrangement for mounting same is characterized in that the lock unit is removably mounted within a lock unit mounting post through a rear surface thereof, which is exposed for lock unit insertion/removal purposes only when the door of an adjacent storage compartment is in an unlocked condition; the mounting post having apertures in its front and side surfaces disposed for alignment with at least the key operated custodian and patron locks, the coin chute and the lock bolt of the lock unit, when disposed within the mounting post. Structure under the control of the custodian lock is employed to selectively, releasably retain the lock unit within the mounting post and to control the patron lock for door unlocking/locking purposes, while the patron key is removed from the patron lock.

Abstract: A lock, such as a padlock, is provided with a single, spring biased end journaled bolt for operably interconnecting a shackle with a magnetic key controlled, locking-unlocking mechanism.

Abstract: A lock includes pivotally supported tumbler pins having magnetically attractable ends normally disposed in one of several locked positions arranged along prescribed paths of travel, but movable under the influence of a key to assume combination setting or unlocked positions arranged along their paths of travel; and a tumbler pin end engaging plate rotatable between locked and unlocked positions when the tumbler pins are disposed in their combination setting positions.

Abstract: A key for a magnetic lock is provided with a plurality of dials, which are manually rotatable to position magnet devices carried thereby in desired combination setting positions determined by visual observation of dial carried indicia.

Abstract: In a magnetic lock of the type having at least one tumbler pin pivotally supported on a mounting plate and a locking plate having an opening arranged to receive one end of the tumbler pin when an opposite end of such pin is attracted by a permanent magnet device carried by a key, the improvement wherein the opposite end of the tumbler pin is formed with a transversely enlarged head portion and the mounting plate is formed with abutment devices arranged to engage with the head portion to insure that the one end of the tumbler pin accurately "points" towards the opening of the locking plate.

Abstract: In a coin operated lock unit having a coin operated patron key lock adapted to effect locking of a cabinet door, the improvement featuring adjustment of the patron lock to accommodate different coin denominations, as well as varying numbers of coins of each denomination.