Abstract: Various embodiments regarding a lightweight wall body frame used for a clean room are described. According to an embodiment, a lightweight wall body frame may comprise: a frame body; a coupling portion comprising a coupling opening formed at the center portion of the frame body; first and second attachment surfaces formed on the outer surface of the frame body so as to attach a steel plate of the lightweight wall body; and first and second support portions formed inside the frame body and inclined so as to connect between the coupling portion and the first and second attachment surfaces and to support the same. Besides, various other embodiments are possible.

Abstract: A chemical mixing device. The device includes a flow generator operative to provide at least two streams of chemicals and a mixing chamber, including at least two inlets adapted to receive the at least two streams of chemicals and an outlet through which a mixture of the streams of chemicals is ejected from the mixing device. The mixing chamber has an open state in which the chemicals are mixed and a closed state in which the volume of the mixing chamber is less than a fifth of the open state volume.

Abstract: A chemical mixing device. The device includes a flow generator operative to provide at least two streams of chemicals and a mixing chamber, including at least two inlets adapted to receive the at least two streams of chemicals and an outlet through which a mixture of the streams of chemicals is ejected from the mixing device. The mixing chamber has an open state in which the chemicals are mixed and a closed state in which the volume of the mixing chamber is less than a fifth of the open state volume.

Abstract: A control system for controlling a motor arrangement for differentially driving left and right wheels of a motorized vehicle, the control system comprising: a comparator for receiving yaw rate sensor signals from a yaw rate sensor attached to the vehicle, the yaw rate sensor signals being indicative of actual yaw rates of the vehicle and for receiving yaw rate reference signals generated by a user input device, the yaw rate reference signals being indicative of user demanded yaw rates for the vehicle, the comparator arranged to output yaw rate error signals based on the difference between the yaw rate sensor signals and the yaw rate reference signals; a control loop for processing the yaw rate error signals to generate yaw rate correction signals for controlling the motor arrangement to reduce the yaw rate error signals, wherein the control loop comprises a variable limiter for limiting the yaw rate correction signals to values within a variable limit, the variable limit varying in dependence upon the yaw rat

Abstract: An electronic system has a controller device, at least one controller responsive device operating in response to the controller device, and at least one status indicating device arranged to provide a control status output. The response mode of operation of the controller responsive device is predetermined dependent upon the control status output of a predetermined one or more of the status indicating devices, the control status output being one of a predetermined plurality of different output modes.

Abstract: Electrical switch circuitry including a relay with contacts and a transistor. A control circuit switches the transistor ON in response to a voltage difference across the relay contacts reaching a predetermined value, such that in use, electrical current is caused to flow through the transistor while the electrical contacts of the relay are closing or opening. This reduces electrical arcing across the contacts of the relay.

Abstract: A switching circuit for connecting a power source to a load is described. The circuit comprises a first relay and at least one second relay in parallel arrangement with the first relay. The switching circuit is arranged such that in the event of a fault condition occurring that requires the disconnection of the power source from the load, the at least one second relay opens while the first relay remains closed. In this manner, a reliable disconnection of the load from the switching circuit is achieved.

Abstract: A switching circuit for connecting a power source to a load is described. The circuit comprises a first relay and at least one second relay in parallel arrangement with the first relay. The switching circuit is arranged such that in the event of a fault condition occurring that requires the disconnection of the power source from the load, the at least one second relay opens while the first relay remains closed. In this manner, a reliable disconnection of the load from the switching circuit is achieved.

Abstract: A method and system for detecting whether an antenna is property connected to a distributed antenna network. The current drawn by the antenna is measured and compared against an expected current draw or reference level. The measured level of current drawn by the antenna is indicative of whether the antenna is properly connected or is disconnected. The comparison results may be used as the basis for creating a status message, which is then communicated to a central monitoring unit for each antenna. The central monitoring unit may generate appropriate alarms in response to a status message indicating a fault condition at a particular antenna.

Abstract: The present invention provides a material handling system and method for a product to be manually processed by an operator (O) at a work-station (10). The material handling system (100) includes: batch delivery means (20) for automatically delivering batches of the product to the work-station (10) on an “as required” or “on demand” basis for manual processing by the operator; and packing container delivery means (60) for automatically delivering individual packing containers (61) to the work-station on an “as required” or “on demand” basis for filling with the product after manual processing by the operator. Each batch of product is typically supplied in a batch container (21) and the system may further include batch container dispatch means (40) for automatically dispatching the batch containers (21) from the work-station (10) on an “as required” or “on demand” basis after the operator has finished manually processing the product it contained.

Abstract: The present invention provides a material handling system and method for a product to be manually processed by an operator (O) at a work-station (10). The material handling system (100) includes: batch delivery means (20) for automatically delivering batches of the product to the work-station (10) on an “as required” or “on demand” basis for manual processing by the operator; and packing container delivery means (60) for automatically delivering individual packing containers (61) to the work-station on an “as required” or “on demand” basis for filling with the product after manual processing by the operator.

Abstract: A cylindrical column of light is formed by the reflection of a laser light plane radially emitted by a main laser light plane source at the inner, mirrored surface of a 45° projector cone. A conical column can be generated and projected by intercepting and reflecting the cylindrical column of light using a diverting cone inside the 45° projector cone. The cylindrical or conical laser light column is set to have the same geometric characteristics of an intended attachment. When the column is properly projected on a surface, it will form an outline representing the desired pattern of intersection of a cylindrical or conical attachment with the surface. The column of light is provided by an illuminator assembly that carries the main laser light plane source, the projector cone, and the diverting cone. The illuminator assembly is carried on a portable support stand.

Abstract: A layer 30 is shaped into the position shown in FIG. 1 and is attached to a plastic or steel plate 22 to fit the plate snugly. Pressure is applied to move the plate 20 and the plate 28 relative to each other towards each other to cause the water to be squeezed from a wet concrete mix 10 and to cause water to flow along the fabric sheet 26 and out through the fabric sheets 18 and 26.

Abstract: A cylindrical column of light is formed by the reflection of a laser light plane radially emitted by a main laser light plane source at the inner, mirrored surface of a 45° projector cone. A conical column can be generated and projected by intercepting and reflecting the cylindrical column of light using a diverting cone inside the 45° projector cone. The cylindrical or conical laser light column is set to have the same geometric characteristics of an intended attachment. When the column is properly projected on a surface, it will form an outline representing the desired pattern of intersection of a cylindrical or conical attachment with the surface. The column of light is provided by an illuminator assembly that carries the main laser light plane source, the projector cone, and the diverting cone. The illuminator assembly is carried on a portable support stand.

Abstract: An absorbent article for absorbing bodily fluid, incorporating a buffer having a pH of from 7 to 10 acting as an efficient odor control material for preventing or combating malodorous compounds present in such articles in use.

Abstract: An absorbent article including an odour control material and in particular to an article for absorbing fluids, for example, bodily fluids, the said article having incorporated therein a buffer as odour control material, which buffer has a pH in the range of from pH 7 to 10.

Abstract: Vegetables or macerated vegetables were washed with water passed through ion-exchange resins capable of removing NO.sub.3 - and NO.sub.2 -ions to remove nitrate nitrogen harmful to human body, then pulverized by freeze-drying. Then, powdered vegetable juice is obtained by adding components effective for healthy life thereto.

Abstract: Boltless shelving apparatus is described which comprises a number of upright support members (10), and a number of transverse shelf members (12). The shelves are mounted to the supports by insertion of downwardly extending engagement members (32) at the shelf corners into corresponding slots (20) in the uprights. The engagement members and slots preferably both have a generally "L" shaped cross-section, and the shelves may be mounted to the supports simply by downward movement of the engagement members into the slots.

Abstract: The present invention relates to novel compounds having nitrogen-containing, saturated bicyclic cylopentane-fused rings which are geminally disubstituted with phosphonate groups. Most preferred compounds of the present invention have the general structure: ##STR1## The present invention further relates to pharmaceutical compositions containing these novel compounds. Finally, this invention relates to methods for treating or preventing diseases characterized by abnormal calcium and phosphate metabolism by utilizing a compound or pharmaceutical composition of the present invention.