Abstract: Described are certain tetramethylcyclopentadienyl titanium compounds, catalyst systems comprising such compounds and an activator, and to a process using such catalyst systems for the production of polyolefins, particularly ethylene-&agr;-olefin copolymers having a high molecular weight and high level of &agr;-olefin incorporation.

Abstract: A fuel injection system is provided for use in an internal combustion engine, where the engine includes at least one cylinder head cover. The fuel injection system includes at least one fuel injector assembly that is inserted into an inlet in the cylinder head cover. The fuel injector assembly includes an upper body portion and a lower body portion that extends through the inlet of the cylinder head cover, where at least part of the lower body portion is comprised of a low radiant heat absorbent material having a high radiant heat reflectance color for reflecting radiant heat away from the fuel injector assembly during engine operating conditions.

Abstract: A television system includes a display screen (2) and a broadcast data receiver (4) for receiving digital data via terrestrial, cable or digital means from a broadcaster (6) and generating visual/audio and/or auxiliary data therefrom. The broadcaster (6) and/or broadcast data receiver (4) is provided with memory for storing program information, which can include subtitle and/or closed caption data. The television system is provided with a search tool/facility to allow a user to search the memory by generating a user request for program information. The television system is capable of matching the user request with any corresponding program information in the memory for display on the display screen (2).

Abstract: A catalyst system comprising a Group 4 transition metal cation having bonded thereto (1) a single cyclopentadienyl ligand or polycyclic derivative thereof, (2) a Group 15 or 16 heteroatom ligand, said single cyclopentadienyl ligand or polycyclic derivative and said heteroatom ligand being covalently bound and bridged to each other, and (3) at least one other ligand selected from the group consisting of hydride, hydrocarbyl, substituted hydrocarbyl, and hydrocarbyl substituted organonometalloid radicals; (b) a compatible non-coordinating anion; (c) a Group 13 element, hydrolyzable Lewis acid compound. The catalyst system is useful for polymerizing olefins, diolefins, cyclic olefins or acetylenically unsaturated monomers, either alone or in combination with each other or with other polymerizable monomers.

Abstract: A front panel display (6) for an electronic device. The front panel display (6) indicates the operational status of the device, such as a broadcast data receiver, to a user. The illumination and/or brightness of the display (6) is/are user adjustable and/or adjustable depending on the status of the device and/or ambient lighting in the locality of the device.

Abstract: A fish hook (10) comprising: a hook portion (11); a shank (12) extending from the hook portion (11); and a line attachment portion (13) to engage a fishing line (17) to secure the fishing line (17) to the hook (10), said attachment portion (13) comprising a pair of a legs (14, 15) which extend to a junction, with one of the legs (14, 15) having a free end (16) and the other leg being a continuation of the shank (12), said legs (14, 15) each having a line engagement portion (33), with the line engagement portions (33) being spaced by a distance of at least one time the diameter of the fishing line (17). A knot to secure the hook (10) and a method of forming it is also disclosed.

Abstract: A fish hook (10) comprising: a hook portion (11); a shank (12) extending from the hook portion (11); and a line attachment portion (13) to engage a fishing line (17) to secure the fishing line (17) to the hook (10), said attachment portion (13) comprising a pair of legs (14, 15) which extend to a junction, with one of the legs (14, 15) having a free end (16) and the other leg being a continuation of the shank (12), said legs (14, 15) each having a line engagement portion (33), with the line engagement portions (33) being spaced by a distance of at least one time the diameter of the fishing line (17). A knot to secure the hook (10) and a method of forming it is also disclosed.

Abstract: A process for polymerizing olefins, diolefins, cyclic olefins or acetylenically unsaturated monomers, either alone or in combination with each other or with other polymerizable monomers with a catalyst system comprising a Group 4 transition metal cation having bonded thereto (1) a mono cyclopentadienyl ligand or polycyclic derivative thereof, (2) a Group 15 or 16 heteroatom ligand, said mono cyclopentadienyl ligand or polycyclic derivative and said heteroatom ligand being covalently bound and bridged, and (3) at least one other ligand; (b) a compatible non-coordinating anion; and a (c) a Group 13 element, hydrolyzable Lewis acid compound is disclosed.

Abstract: The invention addresses Group 5 metal compounds suitable as polymerization catalysts characterized by comprising one Group 15 element polyanionic ancillary ligand and three single or multidentate univalent ligands comprising Group 14-16 elements bound to the Group 5 metal, but excluding cyclopentadienyl ligands. The invention Group 5 metal compounds can be generically represented by the chemical symbols [RJ]MR′3,   (1) and [(RJ)Yn(X)]MR′2  (2) where M is a Group 5 transition metal, preferably vanadium; J is a Group 15 heteroatom ligand covalently bound to M, preferably nitrogen; R is a substituted or unsubstituted aryl, hydrocarbyl or organometalloid group covalently bound to J; each R′ is, independently, a uninegative ligand, e.g.

Abstract: An apparatus for drying damp carpet and flooring materials in either a heated or non-heated manner is disclosed. A blower is provided which incorporates coils located near or at the air flow entrance. A fan is included to produce the air. Designed for commercial carpet cleaning, the invention sits at floor level. The invention forces warm-to-hot air across the floor surface. A control is incorporated in the design to regulate the temperature of the forced air. A handle is designed with the housing of the blower on the top portion for carrying ease. The present invention rotates about a base to dry larger areas of flooring.

Abstract: A polymerization process with ionic polymerization catalyst systems comprising a stable group 4 metal cation and bulky Group 13 metal or metalloid anion containing at least one fluorinated naphthyl or anthracenyl ligand useful for olefins, diolefins, or acetylenically unsaturated monomers, either alone or in combination with each other or with other polymerizable monomers is disclosed.

Abstract: A method is provided for processing a sulphide mineral composition which at least partly comprises an iron-containing mineral.

Abstract: A tracheostomy tube assembly comprises an outer tracheostomy tube and an inner cannula of a flexible material preformed to the shape of the outer tube and smooth on its inside and outside. The outer tube is straight at its patient end and has a short straight machine end with a coupling. The patient and machine ends are separated by a curved intermediate region divided along its length into two sub-regions. The first sub-region closer the machine end has a small radius of curvature; the other sub-region closer to the patient end has a radius of curvature at least three times that of the first sub-region. This shape enables the patient end of the assembly to be aligned with the patient's trachea.

Abstract: A polymerization process for olefinically or acetylenically unsaturated monomers is disclosed. The process comprises contacting the one or more of the monomers with a suitable ionic catalyst system in the presence of a long-chain, linear alkyl ligand-containing organo aluminum compound. Preferred ionic catalysts are derived from 1) bridged hafnium compounds, 2) silicon bridged monocyclopentadienyl titanium compounds and 3) unbridged, bulky Group 15 containing, bulky monocyclopentadienyl titanium compounds, and a non-coordinating anion precursor compound. A class of preferred anion precursors consists of hydrated salts comprising a Group 1 or 2 cation and a non-coordinating anion. Using the preferred ionic catalysts high temperature processes, e.g., at or above 90.degree. C. can be conducted to prepare polyolefins, particularly ethylene copolymers, of both high molecular weight and high comonomer content.

Abstract: One or a plurality of machined timber elements of complimentary first and second configuration wherein each element is characterized by having at least one face surface (1,2) and one abutment surface (3,4) wherein said abutment surface incorporates in said first configuration an elongate undercut slot or female dovetail (5) and in said second configuration incorporates a correspondingly shaped, undercut elongate protuberance or male dovetail (8) and said abutment surface is not orthogonal in relation to said face surface such that said first timber element configuration and said second timber element configuration are adapted for co-operative engagement to effect the joining together of a first timber element incorporating said first timber element configuration with a second timber element incorporating said second timber element configuration whereby the undercut slot of said first timber element interengages with the protuberance of said second timber element to form a self locking joint.

Abstract: An air control valve assembly for the air side of an automotive fuel evaporative emission control system incorporates two passive check valves and an active blocking valve which cooperate to divide the air filtered air inlet path from the air exit path to atmosphere. The possibility of break through vapors flowing back into the air cleaner during canister vapor fill is avoided through the use of oppositely opening check valves. By adding an active blocking valve below the freely movable air inlet check valve, the canister can be rigorously sealed from the atmosphere during a diagnostic evacuation test.

Abstract: The invention addresses Group 5 metal compounds suitable as polymerization catalysts characterized by comprising one Group 15 element polyanionic ancillary ligand and three single or multidentate univalent ligands comprising Group 14-16 elements bound to the Group 5 metal, but excluding cyclopentadienyl ligands. The invention Group 5 metal compounds can be generically represented by the chemical symbols(1) ?RJ!MR'.sub.3, and(2) ?(RJ)Zn(Q)!MR'.sub.2where M is a Group 5 transition metal, preferably vanadium; J is a Group 15 heteroatom ligand covalently bound to M, preferably nitrogen; R is a substituted or unsubstituted aryl, hydrocarbyl or organometalloid group covalently bound to J; each R' is, independently, a uninegative ligand, e.g.

Abstract: A polymerization process for olefinically or acetylenically unsaturated monomers is disclosed. The process comprises contacting the one or more of the monomers with a suitable ionic catalyst system in the presence of a long-chain, linear alkyl ligand-containing organo aluminum compound. Preferred ionic catalysts are derived from 1) bridged hafnium compounds, 2) silicon bridged monocyclopentadienyl titanium compounds and 3) unbridged, bulky Group 15 containing, bulky monocyclopentadienyl titanium compounds, and a non-coordinating anion precursor compound. A class of preferred anion precursors consists of hydrated salts comprising a Group 1 or 2 cation and a non-coordinating anion. Using the preferred ionic catalysts high temperature processes, e.g., at or above 90.degree. C. can be conducted to prepare polyolefins, particularly ethylene copolymers, of both high molecular weight and high comonomer content.

Abstract: A tracheal tube or other medico-surgical device has a surface coating containing lysozyme enzyme, which is effective to reduce the build-up of bacteria on the tube.

Abstract: The new and distinct variety of apple tree is a mutation of Braeburn (an unpatented New Zealand variety). The new variety is characterized by very attractive highly colored red fruit. The color is in the form of a red blush rather than the stripe and fleck of standard Braeburn. The new variety has been named `Lochbuie Red Braeburn`.