Abstract: A consumption meter, e.g. a water or heat meter, for measuring a flow rate of a fluid supplied in a flow tube. First and second ultrasonic transducers are arranged at the flow tube for transmitting and receiving ultrasonic signals transmitted through the fluid and operated by a flow measurement sub-circuit for generating a signal indicative of the flow rate of the fluid. A noise measurement sub-circuit operates a sensor arranged at the flow tube for detection of acoustic signals of the flow tube, and being arranged to generate a signal indicative of a noise level of the flow tube accordingly. This sensor may comprise a separate transducer, or the sensor may be constituted by one or both of the first and second ultrasonic transducers. The consumption meter may communicate data representative of the noise level via a communication module along with data consumed amount of water, heat etc.

Abstract: An assembly-toy chassis building element for a toy vehicle is configured for being non-rotatably connected to another chassis element of the toy vehicle. The chassis element has a top side, two side walls, two end walls and compatible coupling components disposed at opposite ends of the chassis element for enabling the chassis element to be rotatably coupled to another such chassis element. The top side and/or at least one end wall of each chassis element is disposed and configured for connection to an intermediate building element that is adapted, either alone or in combination with at least one other intermediate building element, to effect a non-rotatable end-to-end connection with another such chassis element.

Abstract: An assembly-toy chassis building element for a toy vehicle is configured for being non-rotatably connected to another chassis element of the toy vehicle. The chassis element has a top side, two side walls, two end walls and compatible coupling components disposed at opposite ends of the chassis element for enabling the chassis element to be rotatably coupled to another such chassis element. The top side and/or at least one end wall of each chassis element is disposed and configured for connection to an intermediate building element that is adapted, either alone or in combination with at least one other intermediate building element, to effect a non-rotatable end-to-end connection with another such chassis element.

Abstract: A wall section of a coherent product, such as a container, includes at least two opposing plastic components. At least a first one of the opposing plastic components is injection molded and includes a wall of non-uniform thickness that defines some ribs and a web located between two of the ribs in a portion of the wall where the wall is less thick than in the ribs. At a cross section of the first plastic component, over the height of the ribs the predominant thickness across each of the two ribs is significantly thicker than the thickness of the web. At least the crest of a portion of the ribs of one of the plastic components directly or indirectly contacts another plastic component, and at least a portion of the web of the one plastic component is apart from the web of the other plastic component.

Abstract: A toy building element has sidewalls that include grooves and tongues by which the toy building element can be interconnected with a like building element. Each groove is formed between a pair of outwardly extending flexible ridges. The tongue does not extend outward beyond the virtual plane of the sidewall that includes the tongue. The virtual plane is defined as a plane that passes through a midpoint of a line that connects a central point on an outer surface of the sidewall that includes the at least one tongue to a central point on an outer surface of the sidewall of the other building element that includes the at least one pair of ridges and is perpendicular to a line that passes through the central points of said interconnected building elements when said building elements are interconnected in a centered configuration.

Abstract: A toy building element includes side walls, a top having an upper surface that extends from the side walls, and a plurality of projections extending upward from the extensive upper surface, an open bottom and an interior. The interior is accessible through the open bottom for receiving a plurality of projections of another building element of a set of toy building elements. The interior includes a plurality of hollow members that extend downward from a respective portion of the extensive upper surface that is disposed between two of the projections; and the hollow members are open to the extensive upper surface. The hollow members partition the interior into regions in which a plurality of projections of another building element is received; and the regions of the building element are disposed directly below the projections of the same building element for receiving the projections of the other building element.

Abstract: A toy building element has sidewalls that include grooves and tongues by which the toy building element can be interconnected with a like building element. Each groove is formed between a pair of outwardly extending flexible ridges. In some embodiments, the tongue does not extend outward beyond the virtual plane of the sidewall that includes the tongue. In other embodiments in which the tongue extends outward beyond the tongue-sidewall virtual plane, the distance by which the tongue extends beyond the tongue-sidewall virtual plane is less than (a) the distance by which each ridge of the pair of ridges extends beyond the ridge-sidewall virtual plane, (b) the distance by each ridge of the pair of ridges extends outward to the ridge-sidewall virtual plane and/or (c) the distance by which each side of the tongue extends outward to the tongue-sidewall virtual plane.

Abstract: Toy-building elements including various combinations of the following features: a top having a broad surface and at least one projection or ball-shaped coupler extending above the broad surface; an interior having contact surfaces that are accessible through an open bottom and are adapted for effecting a releasable restraining engagement with an interconnectable projection or ball-shaped coupler on a second toy-building element; at least one sidewall including at least one groove for effecting a releasable restraining engagement with a tongue in a sidewall of another toy-building element; at least one sidewall including at least one tongue for effecting a releasable restraining engagement within a groove in a sidewall of still another toy-building element; and at least one sidewall including an axel-shaped or ball-shaped coupler for effecting a variably positional engagement with an interconnectable coupler in yet another toy-building element.