A transparent LCD back-lit display has a transparent indium-tin oxide heater layer extending across the display and a resistive metal strip heater, supported in a frame of low thermal conductivity, extending around its edge. One temperature sensor is mounted at the center of the display and another is mounted at the edge. The sensors are connected to a heater control unit, which controls power supplied to the heater layer and the edge strip heater to maintain the temperatures at the center and e...

This invention relates to coil assemblies and in particular, but not exclusively, to such assemblies for acoustic transducers. Thus a transducer 10 includes a case 11 in which is located a coil 16 mounted on a flexi-circuit, which locates the coil 16 for its assembly handling and which allows various configurations within the case 11. A method of winding the coil 16 and mounting it on the carrier 17 is also described.

A valve assembly for a pressurized aerosol container which has a neutral bias. The valve may be of the metered dose type and is preferably springless. Containers equipped with such valves may be employed in breath actuated dispensing devices with simplified mechanisms since it is not necessary to overcome any biasing force within the valve.

A shelving assembly for stands, wall-mounted shelves, and the like, includes a plurality of posts each having at least two longitudinally-extending sections joined together at an angle to each other along a juncture section. Each post is formed with at least one transverse slot extending through the juncture section and partly through the two longitudinally-extending sections, and is further formed on the inner face of the juncture section with a pair of coaxial eyelets on opposite sides of the ...

A hitch assembly for coupling an implement to a prime mover is disclosed, which includes a first connector assembly, having a mount for mounting the first connector assembly onto the prime mover, and a second connector assembly having a mount for mounting the second connector assembly onto the implement. One or, preferably, a plurality of complementary plug and socket members is provided for the first connector assembly and the second connector assembly with the plug member(s) and the socket mem...

A filter module (11) comprises a housing divided internally by a partition (14) into two compartments (15, 16). At least one hollow cylindrical filter element (12) is housed in one of the compartments, the or each filter element fitting about an opening (19) in the partition (14). A filter assembly (10) comprises a plurality of filter modules (11) mounted in a fluid flow line (13) such that incoming fluid enters one of the compartments, flows through the walls of the filter elements and filtered...

A gaseous fuel burner has a gas supply (21) feeding a burner head (10) mounted in a refractory block or tile (12) via a venturi (16). Primary combustion air is inspirated to mix with the fuel gas before passing through the venturi and is controlled by a controller (20). A further pipe branch (24) takes fuel gas directly to a further discharge means such as a series of poker nozzles (25) which inject pure gas directly into the combustion zone.

A package assembly has a rigid base member with at least one pair of parallel lines of weakening defining a tear strip. At least one row of packages is positioned on the base member and removably secured to a tear strip by frangible adhesive. A film of plastic material passes over the packages and is secured to the base member to retain the packages in assembly therewith. The packages are removable from the assembly by removing the plastic film, tearing the tear strip from the remainder of the b...

A quick release valve comprising a main casting (1) and a closure member (5, 27, 45) crimped on after insertion of a rubber valve member (9, 30, 48) and an `O` ring seal (13, 39, 49).

The invention or inventions involve various sanitary toilet systems, assemblies, subassemblies, embodiments or structures comprising components, the majority of which are relatively light in weight, readily constructed or formed into the shapes and dimensions desired to provide structures which are portable, very durable, economical to manufacture and assemble, and service when required. Although the components may be constructed of any material suitable for the purpose, the majority are prefera...