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A fork with timer for providing a cue to a user after an elapsed period of time for indicating that another bite of food using the fork may be taken.
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| Number | Title | Issue Date |
| 5483160 | Eddy current testing system with scanning probe head having parallel and normal sensing coils An eddy current testing system consists of a multi-sensor probe, a computer and a special expansion card and software for data collection and analysis. The probe incorporates an excitation coil, and sensor coils; at least one sensor coil is a lateral curr... | 01/09/1996 |
| 5283010 | Tritium removal Where a concrete structure (12) has been contaminated with tritium (whether as gas or as water) the tritium atoms take the place of ordinary hydrogen atoms in water and in hydroxyl groups in the concrete, rendering it radioactive. The degree of contaminat... | 02/01/1994 |
| 5248401 | Electrodes An electrode for use in electrochemical ion exchange comprises an electrically conducting element covered by at least two layers of ion exchange material. The material in one layer differs in its electrical, chemical, or ion exchange properties from that ... | 09/28/1993 |
| 5240572 | Electrochemical ion exchange An apparatus for treating a liquid by electrochemical ion exchange comprises a flow channel (34) in which are arranged a cation-responsive ion exchange electrode (38) side by side with an anion-responsive ion exchange electrode (42), with a counter electr... | 08/31/1993 |
| 5238741 | Silicon carbide filaments bearing a carbon layer and a titanium carbide or titanium boride layer Silicon carbide filaments are coated to protect them from attack by a titanium matrix material when incorporating them into a metal matrix composite. The coating method comprises coating the filaments firstly with a carbon layer and then with a titanium c... | 08/24/1993 |
| 5171337 | Exhaust particulate filter A filter unit (10) for removing particulates from exhaust gases for example from a diesel engine, includes several filter elements (24) arranged so the gas flows through them are in parallel and that no individual element carries more than a fifth of the ... | 12/15/1992 |
| 5144312 | Locating system A system for locating a transponder (10) to an accuracy of plus or minus about 10 m in an area about 5 km across includes a master station (12) and two slave stations (14, 16) at known positions. The transponder and the two slaves each incorporates an ele... | 09/01/1992 |
| 5097693 | Continuous extrusion apparatus Continuous extrusion apparatus in the form of a rotatable wheel having a peripheral endless groove for material to be extruded. An abutment having a die orifice protrudes into the groove. The sides of the abutment and of the groove are of complementary st... | 03/24/1992 |
| 5068532 | Analysis using neutrons A tool suitable for borehole logging, including production oilwell borehole logging, contains a radioisotope neutron source (14), a fast neutron detector (15) and a gamma-ray detector (16). Gamma-ray detection events are selected for building spectra by c... | 11/26/1991 |
| 5061163 | Die assembly A die assembly for use in a continuous extrusion apparatus is made up of two cooperating members. The first member has tapered apertures therethrough disposed symmetrically about a mandrel portion. The mandrel portion cooperates with a throat portion in t... | 10/29/1991 |
| 5051229 | Thermally responsive trigger devices and their use in shut-down devices for nuclear reactors A thermally responsive trigger device comprises a closed bellows (14) having a filling of liquid metal and acting on a trigger (19) responsive to the free end of the bellows. The bellows and trigger are located at a temperature measuring location which is... | 09/24/1991 |
| 5048729 | Aerosol dispenser with flow diverter An aerosol dispenser, for example an inhaler, consists of a container (12) containing a propellant and a medicament, with a valve (14), and an applicator (16). The applicator includes a frusto-conical diverter (20) with a small orifice (60) facing the val... | 09/17/1991 |
| 5030523 | Electrochemical cell manufacture A secondary electrochemical cell is made by (i) assembling a solid state electrochemical cell having an anode containing an alkali metal such as lithium as active anode material; a solid alkali metal ion conducting electrolyte, for example a polymer elect... | 07/09/1991 |
| 5030885 | Charged particle control device A plasma source of charged particles includes a particle extraction control device consisting of an electrode having an exit hole in it and a planar solenoid arranged to produce, when energized, a magnetic field across the exit hole in the electrode, the ... | 07/09/1991 |
| 5022973 | Method of electrostatically enhanced solvent extraction and apparatus therefor A solvent extraction column in which a disperse phase in the form of electrostatically charged droplets contacts a fluid continuous phase. The disperse phase is received in a number of trays having radial nozzles, so that the disperse phase is discharged ... | 06/11/1991 |
| 5019777 | Eddy current testing program with scanning probe head having parallel and normal sensing coils An eddy current testing system consists of a multi-sensor probe, a computer and a special expansion card and software for data collection and analysis. The probe incorporates an excitation coil, and sensor coils; at least one sensor coil is a lateral curr... | 05/28/1991 |
| 5019430 | Method of producing a silicon carbide-based body A method of producing a silicon carbide-based body by infiltrating with molten silicon a porous compact comprising silicon carbide, carbon, and a secondary phase dispersed within the compact. The secondary phase might comprise a titanium compound, or a me... | 05/28/1991 |
| 5013419 | Coating apparatus An apparatus for coating by sputter ion plating comprises a chamber having a gas inlet and outlet for passing gas under low pressure continuously therethrough; a cathode fabricated of coating material or precursor therefor positioned in the chamber; and m... | 05/07/1991 |
| 5009970 | Polymer electrolytes A solid polymer electrolyte is in the form of a gel comprising a complex of a solid polymer (e.g. poly(ethene oxide) and an alkali metal salt (e.g. LiClO4), the polymer being cross-linked to inhibit its transformation from an amorphous form to ... | 04/23/1991 |
| 5008159 | Method of producing silicon carbide-based bodies Silicon carbide-based bodies are produced by forming a porous compact of silicon carbide, a carbide of a metal, and carbon, and infiltrating the compact with a molten mixture comprising the metal and silicon. The metal may be selected from: titanium, zirc... | 04/16/1991 |
| 5007300 | Multi-axis hand controller A hand controller (10) is provided with which an operator can simultaneously control several degrees of freedom of a mechanism, for example a slave arm (18), single handedly. An operator's handle (12) is connected by four links serially arranged between t... | 04/16/1991 |
| 5004922 | Optical fiber scanning system for heat sensing For the detection of heat sources within an area to be maintained under surveillance, several scanning units at different scanning stations are linked to a common radiation sensor by respective optical fibre transmission elements. A gating means, such as ... | 04/02/1991 |
| 4999052 | Method of producing nitrogen-strengthened alloys Nitrogen-strengthened alloys, especially steels, are produced by heating a combination of metal particles and a nitrogen donor, such as a chromium nitride, to make nitrogen available as a solute in the particles. The particles may be produced as a permeab... | 03/12/1991 |
| 4981641 | Inhibition of nuclear-reactor coolant-circuit contamination A method of inhibiting or reducing contamination of out-of-core components of the primary coolant circuit of a pressurized water reactor due to absorption by oxide films of such components of cobalt and other radioactive contaminants generated by neutron ... | 01/01/1991 |
| 4982068 | Fluid permeable porous electric heating element A heating element comprises a body provided by fibrous tubes of an electrically conductive material, a voidage between the tubes providing a path for a fluid to be heated. The material may be silicon, silicon carbide, or silicon rich-silicon nitride. The ... | 01/01/1991 |
| 4973444 | Nuclear reactor installations In a liquid metal cooled fast neutron nuclear reactor plant, surfaces (12) which are immersed in the flowing liquid metal and are vulnerable to liquid metal temperature fluctuations are provided with fins (20) defining cavities (22) for at least temporari... | 11/27/1990 |
| 4968480 | Nuclear reactor fuel elements A nuclear reactor fuel element is helically wound with a strip which on one face at regular intervals along its length has dimples, and has a continuous rib on the opposite face. The strip contacts the associated fuel pin cladding via the dimples which ef... | 11/06/1990 |
| 4950898 | Method of position monitoring and apparatus therefor Displacement or strain is measured by applying to a body to be monitored at least one grid line (two or more where strain measurements are required) and scanning a radiation beam such as a laser beam across or partly across the grid line(s) to produce a p... | 08/21/1990 |
| 4942014 | Nuclear fuel pin fabrication To ensure proper registry of nuclear fuel pellets with fuel pins during loading of pellet stacks into the pins, the pellets are guided through a passageway 28 formed with ribs 42 and pins are located in coaxial passageway 30 also formed with ribs 44. The ... | 07/17/1990 |
| 4928745 | Metal matrix composite manufacture A metal, e.g. in the form of a shaped article, is made by atomizing a stream of molten metal and directing the atomized stream at a collecting surface to form a deposit of the metal. Fine, solid particulate material of different composition from the metal... | 05/29/1990 |
| 4925643 | Regeneration of nitrous acid by oxidation with direct application of heated nitric acid A method for regenerating an aqueous liquid comprising nitrous acid and/or oxides of nitrogen is characterized by feeding the liquid to a column such that the liquid descends through the column. An aqueous solution comprising nitric acid is heated to its ... | 05/15/1990 |
| 4898709 | Ore irradiator An irradiator (4) is provided for irradiating lumps of ore to detect the presence of gold in the lumps by neutron activation analysis. The irradiator (4) consists of a close packed array of three inner cylindrical ducts (14) and three outer cylindrical du... | 02/06/1990 |
| 4894255 | Modification of surface properties of ceramics A method of treating of the surface of a body of a crystalline metal oxide ceramic material, comprising the operation of subjecting the said surface to bombardment with ions having an energy surfficient to disrupt the crystal lattice of the body, and cont... | 01/16/1990 |
| 4890490 | Liquid level monitoring Ultrasonic Lamb waves are launched into a thin-section metal plate (10) which extends generally vertically above the contents of a vessel. As long as the lower end (18) of the plate (10) is above the liquid level, the Lamb waves are reflected at the lower... | 01/02/1990 |
| 4889683 | Thermally responsive trigger devices and their use in shut-down devices for nuclear reactors A thermally responsive trigger device comprises a closed bellows (14) having a filling a liquid metal and acting on a trigger (19) responsive to the free end of the bellows. The bellows and trigger are located at a temperature measuring location which is ... | 12/26/1989 |
| 4887628 | Fluidic apparatus A vortex amplifier functions as a choke valve to control flow in a flow line from, for example, a gas or oil well. The vortex amplifier is arranged in the flow line such that flow passes radially through the vortex amplifier to emerge at an axial port. A ... | 12/19/1989 |
| 4885069 | Coating improvements A coating is formed on a substrate by sputter ion plating wherein a DC glow discharge is generated under soft vacuum conditions in the presence of the substrate and of a cathode constituted by the coating material thereby to release material at the cathod... | 12/05/1989 |
| 4876059 | Temperature measurement A method and apparatus for measuring temperature at different localized zones within a fluid medium, for example parts of the tops of fuel sub-assemblies in a reactor core, in which a continuous stress wave signal is transmitted from a remote location to ... | 10/24/1989 |
| 4876056 | Flow measurement A method and an apparatus are provided for measuring the flow rate of a fluid in a duct, for example in an under-sea crude oil pipeline, in which samples of a radioactive tracer are injected, at intervals, into the duct and the passage of the samples of t... | 10/24/1989 |
| 4874485 | Method for the treatment of waste matter An electrochemical method for treating matter particularly waste matter in which AgII ions are primary oxidising species in an aqueous nitric acid electrolyte at about 50° C., produce secondary oxidising species through interaction with the electrolyte a... | 10/17/1989 |
