Abstract: An improved plastic container is composed of a base, a cover for mating with the base, and a concealed pivotal hinge pin unit having a body portion and end portions which are connected to the cover and base respectively for providing pivotal movement thereof.

Abstract: A revolving skipping device has a crank with end portions connected to flexible loops over which a skipper may jump. The device includes a counter having a ratchet face with numerals indexed by one end of a pivoted pawl having a weighted mass on the other end cooperatively associated with the crank for recording the number of cycles jumped by the skipper.

Abstract: In an appliance having first and second surfaces which are joined to form an enclosure or housing therefor, a strain relief for a power cord is integrally formed therewith. The strain relief includes a pair of posts extending from the first surface for receiving the power cord thereon and a post extending from the second surface. When the surfaces are joined, the second surface post engages, deforms and holds the power cord in a path formed by the first and second surface posts.

Abstract: A compact chord organ which includes a unitary molded lower chamber portion and an upper chamber portion provided with integrally molded reed housings are pressed together to form a chamber. A volume control together with a treble keyboard and chord keyboards are cooperatively associated with the upper chamber portion and the keys of said keyboards are connected thereto by unitary resilient holding means. A unitary molded cabinet top is pressed together with the upper chamber portion so as to provide a housing for the volume control and pallet ends of the keys.

Abstract: A fluid dispenser which includes a container having a collapsible, recoverable portion and a valve assembly connected thereto which includes a flexing flap for closing and opening an air opening extending into the container for permitting air to enter the container, the air being compressed and used to dispense fluid from the container through a valve nozzle in response to the actuation of the collapsible, recoverable portion.