Abstract:
A building unit intended for a domestic cooking range (28; 66) having a ceramic glass hob (30). The building element includes an insulating slab (10) having provided in its upwardly facing main side a measurement-adapted open recess (20, 22) for accommodating a corresponding heating unit (12, 16) forming part of the building element. The heating unit is comprised of a heating filament and rests on projections (50) upstanding from the bottom of the recess with a small abutment surface. The slab (10) includes at least one passage (58) for accommodating electric wires (54, 56) intended for connection to and the remote control of the heating unit (12, 16), these wires extending from each recess (24) to one of the other sides of the slab (10; 70).
Abstract:
An arrangement in an apparatus or a machine operated from the mains for the transfer of control commands to at least one working means (24) in the apparatus or machine, e.g. a motor or the like, via a wire (13) also used for the power supply to said working means. The arrangement comprises a control unit (10) provided for creating a control command by suppressing, in a predetermined order, at least part of one or several consecutive half-periods of a predetermined polarity of the supply voltage. Moreover, the arrangement comprises a slave unit (11) operating in response to the control command transmitted to activate the working means (24). The control unit (10) has such a design that before a control command is transmitted the control unit operates to shortly disconnect the supply voltage on the wire (13) for a period of time required for the current in the working means (24) to decline essentially to zero.
Abstract:
A vacuum cleaner system having a hand-held unit (10), a vacuum cleaner nozzle (14) connected to the hand-held unit (10), a suction hose (16) extending from the hand-held unit (10), and a vacuum source (18) provided at the end of the suction hose (16) which is remote from the hand-held unit. The end of the suction hose is connected to an air cleaner (20). The air cleaner (20) is provided with means (23, 24) for alternatively or commonly cleaning the ambient air and/or the air from the suction hose (16).
Abstract:
The present invention relates to a method of producing an impregnated wooden product from a wooden article. The article is pressed isostatically with a pressure exceeding 1,000 bars in a first method step. The wooden article is then placed in a bath containing a liquid-impregnating agent in a second method step and allowed to swell so that at least a part of the impregnating agent is absorbed by the article. The method may optionally be supplemented with a third method step in which the article is pressed isostatically with a pressure exceeding 1,000 bars, so as to form a hard element. The third method step may alternatively be applied to a conventionally pressure-impregnated article.
Abstract:
A method of producing a through-coloured wooden element in which the element is pressed isostatically in a first step, at a pressure greater than 800 bar, preferably greater than 1000 bar, whereafter the pressure is removed and the element is then placed in a liquid bath that contains a dissolved colorant in a second step. The invention also relates to a through-coloured wooden element.
Abstract:
A vacuum cleaner includes a suction fan driven by an electric motor, a suction nozzle connected to the intake side of the fan via a dust container, and a flex means provided for the electric power supply of motor. The motor is electronically controlled and adapted to be driven at a speed such that the suction fan operates at a speed of at least 50.000 rpm. The suction fan comprises a fan impeller of the turbo fan type.
Abstract:
According to a method of balancing a container (10) which is rotating about an essentially horizontal axis, preferably a washing machine drum, the container is provided with cavities (15) evenly distributed along the periphery thereof and having openings (20) via which selectively liquid can be introduced in the respective cavity. A sensor (24) is provided for sensing vibrations caused by the rotation of the container and for emitting an electrical signal the magnitude of which is a measure of the magnitude of the vibrations. The container (10) is brought to rotate at a first rotational speed and the sensor signal is read. A predetermined amount of liquid is introduced in a randomly selected cavity (15) along the periphery of the drum. The sensor signal is again read and the value is compared with the preceding sensed value, wherein if the value is lower than the preceding one a new dose of the predetermined amount is introduced in the selected cavity while if the value is equal to or greater than the preceding one the predetermined amount is introduced in the immediate following cavity along the periphery. The described sequence is repeated until the sensor signal is lower than a predetermined, permissible value at which the container is brought to rotate at a second rotational speed, higher than the first one. The sequence described is repeated for different rotational speeds until the desired rotational speed has been reached and the sensor signal is lower than the predetermined value.
Abstract:
There is described an individual-temperature control device for use with a cooking range (10) or like utility which includes one or more electrically heated zones (12, 14, 16, 18). A cooking vessel (42) can be placed on these zones. The temperature control device includes a sensor module (36) which is intended to be mounted on an associated attachment element (32) above the zones and cooking vessel respectively. The sensor module includes means (46) for aligning the module with a desired point (39) on the surface of foodstuff in the cooking vessel or with a desired point on the surface of liquid contained therein. The sensor module (36) functions to sense heat radiated from this point and is connected electrically to an electronic control unit (44). The control unit controls the temperature in the proximity of the point (39) in accordance with the sensed radiation, with the aid of a temperature control value stored in the control unit.
Abstract:
Vacuum cleaner including a unit, comprising an electric motor and an associated suction fan, and a suction nozzle (36) connected to the inlet side of the unit via a dust separating device (15), either directly or via a connectable rigid conduit (13). The vacuum cleaner comprises a handheld unit (10) which when not in use is arranged to be positioned on a stationary storage unit (11), said handheld unit (10) incorporating the said unit and the dust separating device (15) and being provided with a coupling means (12) for connecting of the rigid conduit (13). For power supply purposes, by means of an extensible flex (26), the handheld unit (10) is connected to the storage unit (11) which via an additional flex (39) is connectable to a mains outlet.
Abstract:
Method of manufacturing a hollow plastics article by means of injection moulding and by using a core which is inserted in a mould. The core (15) is formed by a container (12) which is filled with non-compressible material, such as liquid or liquid frozen to solid form. The article (10) is moulded around the core. After the injection moulding the material is removed through an opening in the article and the container, respectively, whereas the container remains in the article in order to form a part which is integrated with the article.