Abstract: There are provided methods for separating iron ions from aluminum ions contained in an acidic composition. The methods comprise reacting the acidic composition with a basic aqueous composition having a pH of at least 10.5 so as to obtain a precipitation composition, maintaining the precipitation composition at a pH above 10.5 so as to cause precipitation of the iron ions, at least substantially preventing precipitation of the aluminum ions, and to obtain a mixture comprising a liquid portion and a solid portion; and separating the liquid portion from the solid portion. There are also provided methods for treating an acidic composition comprising iron ions and aluminum ions. Such methods can be useful for preparing products such as alumina, aluminum, hematite etc.

Abstract: There is provided a method for extracting aluminum ions from argillite. The process comprises leaching the argillite with an acid such as HCl so as to obtain a composition comprising the aluminum ions and iron ions; at least partially removing the iron ions from the composition by substantially selectively precipitating the iron ions by adding a base and at least partially removing the precipitated iron ions so as to obtain an Al-rich composition; and optionally purifying the Al-rich composition by adding a base for substantially selectively precipitating the aluminum ions, by means of a hollow fiber membrane, or by a liquid-liquid extraction.

Abstract: An instrument panel having at least one needle indicator comprising a dial of indicating characters supported by a first faceplate, an indicating needle and a motor for rotating the needle along the dial. The instrument panel includes a second faceplate for supporting other indicating characters, such that the indicating needle is configured to lie between the two faceplates. The faceplates are screen-printed flat before being shaped in relief.

Abstract: An indicator for a vehicle instrument cluster includes a number of pointers concentrically mounted with respect to the instrument cluster. The pointers are illuminated via a common light source. The pointers may be configured to indicate a reference value and an actual measured value (e.g., vehicle speed).

Abstract: An exemplary embodiment of a pointer for a gauge includes a body of transparent material, the body including a hub and an indicator portion extending from the hub. The pointer further includes a fitted cover of transparent material to cover the body, the fitted cover including a visible pattern.

Abstract: A display device includes a first portion of a flexible ribbon, the first portion secured along the pointer and a bend portion of the flexible ribbon disposed between the first portion of the flexible ribbon and a first loop branch, the bend portion folded over one end of the pointer so that the bend portion and the first loop branch connected to the pointer both extend along a common plane.

Abstract: An exemplary embodiment of a pointer for a gauge includes a body of transparent material, the body including a hub and an indicator portion extending from the hub. The pointer further includes a fitted cover of transparent material to cover the body, the fitted cover including a visible pattern.

Abstract: An indicator assembly for a vehicle instrument cluster is provided. The indicator assembly includes a (“floating”) needle configured to rotate with respect to an indicator housing. The needle is selectively illuminable by a light source which may be mounted in various placements with respect the indicator assembly.

Abstract: According to an exemplary embodiment, a pointer includes an indicator portion including an arm of transparent material and a margin that projects laterally from the arm, the indicator portion also including a rear face that defines thereon a central zone corresponding to the arm and a peripheral zone corresponding to the margin. The rear face includes a first coating of a first color to cover the central zone only and a second coating of a second color to cover at least the peripheral zone.

Abstract: The display and/or lighting for the interior of a vehicle comprising at least two stacked layers each comprising at least one OLED.

Abstract: An indicator for a vehicle instrument cluster is provided. The indicator includes a dial configured to guide light from a light source to a pointer which further guides the light so that it is visible by a user.

Abstract: An exemplary embodiment of a pointer for a gauge includes a body of transparent material, the body including a hub and an indicator portion extending from the hub. The pointer further includes a fitted cover of transparent material to cover the body, the fitted cover including a visible pattern.

Abstract: According to an exemplary embodiment, a pointer includes an indicator portion including an arm of transparent material and a margin that projects laterally from the arm, the indicator portion also including a rear face that defines thereon a central zone corresponding to the arm and a peripheral zone corresponding to the margin. The rear face includes a first coating of a first color to cover the central zone only and a second coating of a second color to cover at least the peripheral zone.

Abstract: An instrument panel having at least one needle indicator comprising a dial of indicating characters supported by a first faceplate, an indicating needle and a motor for rotating the needle along the dial. The instrument panel includes a second faceplate for supporting other indicating characters, such that the indicating needle is configured to lie between the two faceplates. The faceplates are screen-printed flat before being shaped in relief.

Abstract: The screen (3) is in a light box (6). Lighting means (5, 11) are arranged to light the screen (3) with a subdued light and a warning light. The subdued lighting means (5) are placed in the light box (6) and the warning lighting means (11) are remotely located outside the light box (6), to light the screen (3) via a light duct (8). The invention applies to motor vehicle dashboards.

Abstract: The invention pertains to an onboard indicator (1) with luminous needle (10) , which indicator is mounted on a dashboard electronic card (21), the needle comprising an arm movable in rotation with a light source (13) and the card a source (22) for energizing the light source. It is characterized in that the light source comprises a support of flexible material (30) with a first part (30?) covered with a photophore substance (13) subjected to an electric voltage from the energizing source to which it is linked electrically by a flexible electrical link (30, 31, 32) formed by a second part (30?) of the insulating flexible support (30) serving as substrate for at least two conducting tracks (31, 32). The solution of the invention makes it possible to produce a very flat indicator with a minimum of components.

Abstract: The present invention relates to an indicator device comprising a dial (7) having a pointer (14) movable thereover, the pointer being provided with an inlet portion (20) and an outlet portion (22.2) for a light beam produced by at least one lighting member (19), the lighting member being positioned to emit the light beam towards the dial which is arranged to form a member for guiding the light beam towards the inlet portion of the pointer.

Abstract: A motor vehicle instrument cluster includes an instrument panel in two parts at least arranged on either side of a semi-reflecting window and respectively generally at right-angles and generally parallel to the axis of vision.

Abstract: A display device includes a first portion of a flexible ribbon, the first portion secured along the pointer and a bend portion of the flexible ribbon disposed between the first portion of the flexible ribbon and a first loop branch, the bend portion folded over one end of the pointer so that the bend portion and the first loop branch connected to the pointer both extend along a common plane.

Abstract: An indicator for a vehicle instrument cluster includes a number of pointers concentrically mounted with respect to the instrument cluster. The pointers are illuminated via a common light source. The pointers may be configured to indicate a reference value and an actual measured value (e.g., vehicle speed).