Abstract: The invention provides a dispenser configured to house one or more freely moveable treats in a hollow interior cavity and to randomly release treats through a limited number of dispensing holes only if a treat is in a limited orientation relative to a dispensing hole. The dispenser is made of a flexible, resilient material into a shape that promotes an irregular bounce when the dispenser contacts a generally flat surface. The dispenser can be used to promote prolonged engagement by challenging a pet to cognitively manipulate the dispenser so that treats inside the dispenser are randomly released.

Abstract: The present invention is a real sound-producing toy engine. It includes a main housing having a simulated automobile engine exterior and a plurality of activation sites located at the main housing for activating a plurality of different real sounding motor-related sounds. It also includes a plurality of switches, there being at least one for each of the activation sites which is connected thereto. Each of the switches has an off-position and an on-position, each of the switches being also connected to at least one sound-producing mechanism. There is an engine start-up activation site at the main housing and a switch connected to the engine start-up activation site, with sound-producing device capable of producing an engine start-up sound, including a running engine sound which simulates an idling engine, and at least one power source connected to the foregoing. In some embodiments there is an oil fill port activation site having a pressure switch and simulated oil container.

Abstract: A heating device for heating corrosive vapours includes a casing defining a vapour flow path having an inlet and an outlet. A tubular metallic electric resistance heating element is disposed in the flow path and arranged such that the vapours being heated successively pass in opposite directions along the interior and exterior of the element in flowing from the inlet to the outlet of the casing. To accomodate thermal expansion and contraction, one end of the element is connected to the casing by means of a flexible coupling there being provision to maintain at least a part of the flexible coupling immersed in a body of an electrically non-conductive liquid capable of shielding the coupling from the corrosive vapours during operation of the device. The non-conductive liquid may be maintained in the liquid state by circulation through a heat exchanger.