An indicating apparatus for indicating a vacuum, particularly for indicating the vacuum on the filtered-air side of an air filter for an internal-combustion engine, including a housing and a piston which is movably disposed in the housing and which separates a vacuum area from an anbient-pressure area. A snap element is provided which is activated by the piston and, at a predetermined vacuum, triggers an electric contact.

In an indicating instrument, especially in a motor vehicle, having a cover glass (4) that appears dark and, under incident light, prevents any view of a dial (3) arranged at a distance behind it, and having at least one light source (8) arranged behind the dial (3) to transilluminate said dial (3) and therefore render the dial (3) visible through the cover glass (4). In order to prevent the dial (3) becoming visible when there is only incident light, the transmission of the dial (3) is matched t...

In an indicating instrument (1) intended for a motor vehicle, a plurality of display levels (2, 3, 4) partially superposed on one another permit a display at staggered depths. As a result, not only three-dimensional forms of display but also a preferred arrangement of the essential information according to the operating conditions can be provided on the first display level (2). For unproblematical exchange or later retrofitting, the display levels (2, 3, 4) fixed in a housing of the display inst...

The invention relates to an indicating instrument, in particular for a motor vehicle, having a housing with a front frame holding a cover pane, and an elastic spacing element arranged between the cover pane and front frame, and to a method for connecting the cover pane to the front frame. In order to ensure a reliable connection between the cover pane and front frame which is without play, the invention proposes the spacing element be placed in an axial cutout which is arranged in the region of ...

A display device includes having a display unit which comprises a scale with graphic information and an indicator element which can be aligned as a function of at least one input parameter with a position of the scale. In order to ensure a better readability particularly in the case of small display devices, the display of the graphic information is changed in an area around the momentary position of the indicator element in comparison to a normal display.

A device for dispensing metered dosages of a substance from a container includes a dispenser housing having a longitudinally extending cavity defined at least in part by a wall and a support block spaced from the wall. The container is disposed in the cavity of the dispenser housing and is container reciprocally moveable within the dispenser housing along a longitudinal axis. An indicating device is disposed in the dispenser housing and includes an annular member disposed around a first end of t...

Indicating light for optical display, comprising a housing including electrically conducting components, a light-emitting diode, a light rod and a round cap.

Indicating light for an optical display, with a housing exhibiting electrically conductive parts, a light-emitting diode, and a push element, capable of axial displacement in a hollow rod, for a switch mounted in the hollow rod.

An output port open control device (65) allows a port (P3) which outputs PWM signals of a Cos+ side to be in a high impedance state in a period in which respective PWM signals of Cos+ and Cos- supplied to a S-phase coil (22) of a stepping motor (2) are in a ground level, induced voltage corresponding to a magnetic flux variation caused in accordance with rotation of a magnet rotor (23) is generated in the S-phase coil (22), a voltage comparator (72) compares the induced voltage with a previously...

An indicating device for use with a dispensing device that dispenses metered dosages of a medicament from a container having a valve moveable between an open and closed position. In a preferred embodiment, the container is reciprocally moveable within the housing along a longitudinal axis. The housing preferably has a well adapted to receive a valve stem and an exhaust port. The well communicates with the port such that the metered dosage of medicament is dispensed through the port when the valv...