Abstract: A system for exercising with a skip-rope including a tread mat having a sensor embedded therein that is responsive to the proximate passage of the skip-rope and read-out instrumentation connected to the sensor for counting the number of skips.

Abstract: Portable safe for securing small items, having a storage case with bottom and spaced side walls that define a storage space, and a front portion hingedly mounted to the forward part of the case and which retains a padlock internally with the padlock shackle protruding through a front wall of the front portion for securing the safe to a fixed external member, and a lid slidably mounted in grooves in the upper part of the case and mounting a lock which, when the lid is slid to cover the storage space, makes locking engagement with a latch on the hinged front portion and holds the front portion against pivotal movement.

Abstract: A portable apparatus for in-place jogging including a housing to which is pivotally mounted a structure that supports a jogging surface, the support structure having an in-use position in which it is locked at 90 degrees to the housing, and a fold-away position in which it is rotated and folded into a cavity within the housing.

Abstract: An exercise apparatus for in-place jogging including a support structure mounting a taut tramping mat, and including a wall-mounted housing, the support structure being rotatably mounted to the housing such that it is rotatable from an in-use position on the floor through about ninety degrees to be engaged and held by the housing in a storage position.

Abstract: A normally closed cartridge container for storing various vended articles and adapted for insertion into a vending machine. The container includes a hinged transverse door, proximate the bottom thereof, for allowing withdrawal of the articles from the interior thereof following insertion of the container into the vending machine. Prior to insertion, the transverse door is maintained closed by a first leaf spring engaging a first detent on the periphery of a cam attached to the door. After insertion, a second leaf spring is urged against the cam to engage a second detent when the door is rotated to an open position by a rack and pinion driven by a first solenoid. In a first embodiment, the first and second solenoids are concurrently energized across a micro-switch closed by a door in the vending machine at insertion of the container, the second solenoid urging the first leaf spring out of the first detent.