Abstract: A water filter comprises a cap (70) having an inlet (84) and an outlet (74), a valve (88) being provided in the inlet (84). A housing (10) has a filter cartridge (26) removably contained in the housing. Valve opening means in the form of a ramp like projection (56) is provided on an upper end cap (40) of the filter cartridge (26). The housing is connected to the cap by a bayonet fitting. When the housing (10) is rotated to connect to the cap (70), the cartridge (26) is also rotated, and the projection (56) contacts the valve member (96) to open the valve.

Abstract: A powder spray apparatus is described including a powder booth with a scraper bar which reciprocates across the floor thereof to collect deposited overspray powder and supply it to intakes located at each end wall. The intakes are connected by a feed channel to one or more cyclone separators. An exhaust duct may also be provided for air-borne overspray powder which preferably forms part of the feed channel. Powder recovered from the cyclone separators may be passed to a common collection hopper by use of a venturi pump which transfers the powder from each separator to the hopper via a sieve located in a ventilated enclosure above the hopper.

Abstract: A powder coating material spray booth, one or more powder spray devices position to spray articles passing through the booth with powder coating material, a powder recovery module comprising a separator for separating powder coating material from air, a source of suction for drawing over sprayed powder coating material from inside the booth, an exhaust duct connected to the powder recovery module and communicating with the suction source, said suction source being operable to draw airborne over sprayed powder coating material out of the booth through the exhaust duct and into the powder recovery module, at least a portion of the exhaust duct being [contained] accessible from within the booth, said portion including a cover section which forms a part of said exhaust duct, said cover section being [removable] movable to allow over sprayed powder coating material to be removed from inside said exhaust duct during a color change operation.

Abstract: A powder spray apparatus is described including a powder booth with a scraper bar which reciprocates across the floor thereof to collect deposited overspray powder and supply it to intakes located at each end wall. The intakes are connected by a feed channel to one or more cyclone separators. An exhaust duct may also be provided for air-borne overspray powder which preferably forms part of the feed channel. Powder recovered from the cyclone separators may be passed to a common collection hopper by use of a venturi pump which transfers the powder from each separator to the hopper via a sieve located in a ventilated enclosure above the hopper.

Abstract: A communication system for communicating with a network which includes a computer associated by means of a bus with a communication processor which is itself linked to a specific link of the network, the computer including a first operating system, and the processor including a second operating system, which handles the transmission of data from the bus to the network and vice versa. The communication system includes a telecommunication server associated with the first operating system, and a communication code which belongs to at least one open systems interconnection model associated with the second operating system, wherein the server provides the first operating system with access means to the various layers of the code, this code implementing the specific protocols of each layer, in order to enable transmission to the host or to the network.

Abstract: This invention relates to a process for the selective preparation of ortho-hydroxybenzyl alcohols and, in particular, ortho-hydroxybenzyl alcohol. According to the invention, the reaction of a phenol with an aldehyde in an initially anhydrous medium and in the presence of a catalytic amount of a metal phenate, results in the selective production of ortho-hydroxybenzyl alcohols.