Proll Molding Co., Inc.

Polymer Technologies Limited

J Melvyn Goldenberg

A non-openable container such as for disposal of medical waste or containment of hazardous materials. The container is adapted for optional engagement with a removable cap prior to insertion of medical waste or hazardous materials and with a non-openable and non-breachable, one-way engaging cap which renders the container non-openable except with destruction of the container. To ensure secure non-openable closure of the container, the peripheral edge of the skirt of the one-way cap has a plurality of circumferentially arranged ramped teeth extending longitudinally on the interior wall of the cap to the lower edge of the skirt. These teeth cooperatively engage oppositely extending teeth on a shoulder of the container or other peripherally extending fixed-in place element. The opposing teeth mesh longitudinally and are held in a non-back-off position by the engaged threads, bayonet mount or other engaging means between the cap and container. The teeth are not externally accessible and attempted deformation of the cap and container causes them to move, if at all, as a unit without disengagement of the intermeshed teeth. The container and cap are constructed of break resistent low-deformable material to resist breakage and manipulative disengagement of the cap from the container.

Non-openable container

The keys for toy musical instruments comprises a plurality of keys that are friction-fitted on a pair of supports. Each key is an integrally formed, molded member comprised of several components with interrelated functions, such as (1) a key lever for manual depression, (2) a hammer at the end remote from the key lever, (3) a flexible segment for propelling the hammer against a tone bar in response to depression of a key lever, and (4) unique cooperating members on the flexible segment and key lever for damping out reverberations of the hammer that might cause repeated strikings of the tone bar and/or chattering of the hammer.

Keyboard assembly for toy musical instruments

A keyboard assembly for toy musical instruments, such assembly being executed in plastic and including a base with an upper section for receiving a plurality of tone bars and a lower section for receiving a like plurality of keys. Each key is removably mounted upon a discrete upstanding column on the base by a friction fit defined between the column and a pair of supports on the underside of the key; each column is formed of two resilient halves separated by a gap. Each key is an integrally formed, molded member comprised of several components with interrelated functions, such as (1) a key lever for manual depression, (2) a hammer at the end remote from the key lever, (3) a flexible segment for propelling the hammer against a tone bar in response to depression of a key lever, and (4) cooperating abutments for damping out reverberations of the hammer that might cause repeated strikings of the tone bar and/or chattering of the hammer.

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Upper Saddle River, NJ, United States of America

J Melvyn Goldenberg