baber/WOPTO huggingface dataset:
Patent GB-2368365-A (GB)
Title: Safety roller screen
Inventor: ROCHE ANTHONY RONALD
IPC: E06B7/28
Filed: 2000-10-26
Abstract: The present invention provides a roller screen assembly having a screen 5 made from an open mesh of flexible wire that allows the screen to roll up on itself. The roller screen is provided with releasable latching and retention means 11, 13. The screen may be received into a housing 1 when rolled up and the latching and retention means may be retained by a locking member 7. The roller screen may be used as a security screen that is applied to an opening to inhibit access there through. It may be used for window or door openings. In a preferred application the screen may be fitted between a door jamb (27, figure 2) and the opening of a door (31, figure 2), to inhibit access through the opening thereby affording improved security when the door is opened.
Patent GB-2370128-A (GB)
Title: Arrayed waveguide grating with optical delay regions
Inventor: HOEKSTRA TSJERK HANS
IPC: G02B6/34
Filed: 2000-12-12
Abstract: A waveguide array device comprising a plurality of array waveguides 12 is arranged such that any change in optical path lengths due to changes in temperature is substantially the same for each array waveguide of the device. This is done by choosing appropriate optical delay regions for the waveguides so that, a device having a constant, or substantially constant, change of optical path length with temperature across all the waveguides can be achieved. A core of at least one of said waveguides includes at least one optical delay region 30 made of a material having a dn/dT of different magnitude but of the same sign as the dn/dT of the material used in the core of this waveguide outside of this optical delay region.
Patent GB-2355748-A (GB)
Title: Downhole multiplexer and related methods
Inventor: LEISMER DWAYNE D
IPC: E21B44/00
Filed: 1999-07-09
Abstract: In a broad aspect, the present invention is a downhole hydraulic multiplexer, which is comprised of one or more piloted shuttle valves (14), and method of using. The invention takes one or more input signals from a surface control panel or computer (86), said signals may be electric or hydraulic, and converts said signals into a plurality of pressurized hydraulic output channels. The invention is shown in a variety of preferred embodiments, including a tubing deployed version, a wireline retrievable version, and a version residing in the wall of a downhole completion tool. Also disclosed is the use of multiple shuttle valves used in parallel or in series to embody a downhole hydraulic fluid multiplexer, controllable by and reporting positions of said shuttle valves to said surface control panel or computer.
Patent GB-2372148-A (GB)
Title: A Method of Manufacturing an Optical Device
Inventor: MARSH JOHN HAIG
IPC: H01S5/34
Filed: 2001-01-23
Abstract: A method of manufacturing an optical device (40, Figure 2) for example, laser diodes, optical modulators, optical amplifiers or optical switches, uses a device body portion which includes a Quantum Well Intermixing (QW I) structure 30. The method includes the steps of depositing a dielectric layer 51 on at least part of the surface of the device body portion. Structural defects are then introduced into at least a portion of the device body portion adjacent to the dielectric layer. The structural defects may comprise point defects. The dielectric layer may be silica or aluminium oxide, and deposited by using a diode sputterer (65 Figure 6). The Quantum Well Intermixing method may use impurity free vacancy disordering. Preferably, the device body portion including the dielectric layer is annealed at an elevated temperature. A second method of manufacturing an optical device is also disclosed . In the second method of manufacturing an optical device, a device body portion from which the device is to be made includes a Quantum Well Intermixing (QWI) well structure. The method includes the step of depositing a dielectric layer 51 on at least part of a surface of the device body portion by sputterering. Preferably, the device body portion is fabricated from a gallium arsenide based system so that the device operates at a wavelength between 600 and 1300 nm. Alternatively, the device body portion is fabricated from indium phosphide and the device operates a wavelength of between 1200 and 1700 nm. An optical integrated circuit, or photonic integrated circuit which uses the optical device is also disclosed.
Patent GB-2376136-A (GB)
Title: Adaptor for wall socket outlet
Inventor: EKINS ANDREW JOHN
IPC: H01R31/02
Filed: 2001-06-01
Abstract: An adaptor 10 for a wall socket outlet comprises a housing 11 having a socket board 12 bearing one or more expansion sockets 18. Side walls 13,14,15,16 extend from the socket board 18 defining a cavity 17 within the housing 11. An active plug 19 is housed within the cavity 17, and is electrically connected to each expansion socket 18. When the adaptor 10 is in use, the power supply outlet is a least partially enclosed within the cavity 17 of the adaptor housing 11. The adaptor 10 may additionally comprise an adjustable dummy plug 21 moveable with the cavity 17.
Patent GB-2376479-A (GB)
Title: Acoustic insulation and fireproofing for steel beams
Inventor: DENNIS PAUL ALAN
IPC: E04B1/94
Filed: 2001-06-12
Abstract: The voids of steel I-beam 14 are filled with acoustically-insulating fire-retardant liquid foam 40 which solidifies and adheres to beam 14 on application. The sides of the I-beam are covered with flexible acoustically-insulating fire-retardant material 42.
Patent GB-2369060-A (GB)
Title: Supraglottic airway structure specifically used for anaesthesia
Inventor: LIN BIH-CHERN
IPC: A61M16/04
Filed: 2001-07-09
Abstract: A supraglottic airway (laryngeal mask) structure specifically for use during anaesthesia, comprises a silicone mask (20) and a main tube seat (10) with a diverging tube opening (11). The tube seat (10) fits through the silicone mask (20). A rubber annular tube (60) with differing diameters is implanted in the mask (20). A soft sleeve (30) is fitted on the mask (20). The inner diameter of the soft sleeve (30) corresponds to the profile of the tube seat (10). The soft sleeve (30) is pushed forward to make an upper tube opening (12) of the main tube seat (10) protrude out of the soft sleeve (30). An anaesthetic gas intake tube (50) with an engaging flange (52) is fitted through the diverging section (11) of the main tube seat (10) and engages therewith. A fine string (40) is used to tie up the soft sleeve (30), main tube seat (10) and the intake tube (50) so as to prevent the soft sleeve from detaching from the main tube seat (10).
Patent GB-2377583-A (GB)
Title: Sending digital data files
Inventor: SELLEN ABIGAIL JANE
IPC: H04N1/00
Filed: 2001-07-10
Abstract: A method of specifying the delivery of the content of a digital data file via a digital communications network provided with delivery means, the method comprising: supplying a processor connectable to the digital communications network with the digital data file; supplying the processor with input to enable delivery coordinates for the said digital data file to be determined; supplying the processor with input specifying a delivery format in which the content of the said digital data file is to be delivered. The delivery co-ordinates are either a postal address, fax number or an electronic mail address.
Patent GB-2362975-A (GB)
Title: Method for convolution of signal or image data
Inventor: WRIGLEY ADRIAN
IPC: G06F17/15
Filed: 2000-03-03
Abstract: A data set (representative of, for example, an image) is convolved with a further data set so as to combine the values of the data elements of the two sets and to map the results into an output data set. The elements of each of the data sets are arranged into a respective set of groups, and for each group at least one variance value representative of the range of values of those elements is obtained. Those variance values are subsequently used to determine for which , if any, pair combinations of groups, one from each set, the results of the convolution calculations based on average values for at least one of the groups in the pair would not differ significantly from the results of convolution calculations based on individual values of the data elements contained in both groups. Convolution calculations for those pair combinations are then performed using the average values, so that the values of all the data elements in one or both groups are treated as being constant and substantially equivalent to the average value for the group. The convolution calculations for the remaining pair combinations of groups (if any) are obtained by convolving individual values of data elements in those groups. The use of said average values expedites the convolution process without the need to transform any of the data sets into the frequency domain (as occurs with Fast Fourier Transform methods).
Patent GB-2377197-A (GB)
Title: Safety apparatus
Inventor: CORDER ROBERT
IPC: B26B29/02
Filed: 2001-09-04
Abstract: The present provides a hand-held safety apparatus 1 for preventing injuries to the hand when operating a bladed tool 5, said apparatus comprising a grip element 2 and a guard element 3, the guard element being located at one end of the grip element such that it forms a barrier between the blade 6 of the bladed tool 5 and the operator's hand 4 when the apparatus is in use. In a preferred embodiment, the guard element 3 includes a substantially planar surface which is angled with respect to the longitudinal axis of the grip element. Preferably, the planar surface of the guard element 3 is substantially perpendicular to the longitudinal axis of the grip element.
Patent GB-2371086-A (GB)
Title: A method and system for determining the operating state of a hybrid vehicle
Inventor: BOGGS DAVID LEE
IPC: B60L50/15
Filed: 2001-10-04
Abstract: A method for determining the operating state of a hybrid electric vehicle drive system comprises the steps of determining the on/off status of a fuel command 100 and determining a torque 102. If the fuel command is on and the torque exceeds a predetermined threshold value 104, then an engine running indicator is set 'on' 106. The torque measured may be the generator torque, which provides an indication of the actual engine torque. If the two conditions are not met, the engine indicator may be set to 'off' 108.
Patent GB-2364727-A (GB)
Title: Running a screen downhole
Inventor: VOLL BENN A
IPC: E21B43/08
Filed: 2000-05-25
Abstract: The sand-control screen assembly 36 is secured to a base pipe 34 via a continuous weld 38 or other type of joint. The base pipe has perforations 40 surrounded by a coarse filter screen (22, figure 1) and a fine filter screen (20, figure 1). The elements of the screen assembly are made from materials that enhance the buoyancy of the assembly compared with a steel construction. The material may be non-metal, composite, or fibre epoxy composite to enhance the advancement of the assembly into a long lateral of a downhole well. The buoyancy enables the assembly to float and reduce the drag or friction to assist in its positioning in the wellbore.
Patent GB-2373640-A (GB)
Title: A high frequency transformer with high current coils formed from sheet metal
Inventor: FUJIYOSHI TOSHIKAZU
IPC: H01F30/10
Filed: 2001-11-26
Abstract: A transformer comprises planar metal coil members 1, 2 in which each coil member includes a window 1a, 2a for a core member 18a, 19a in a central position and a slit 1b, 2b extending outward from the said window with first and second terminals 1c, 1d, 2c, 2d formed on opposite sides of the said slit. Insulating sheet material 9, 10, 11, with similar dimensions and window to that of the coil members, are arranged between adjacent coil members. Some coil members are connected in series and some in parallel for high and low voltage windings respectively. The coils may be arranged on the central limb of a three limb ferrite core arrangement 18, 19. At least one coil member 1 may include a tab 1e on to which a temperature sensor 20 may be mounted. A U-shaped insulating member with a projection (see figures 5A-5D) may be used to align and secure the coil members and insulating sheets relative to one another. The terminals of the coil members may be interconnected by a screw, rivet, welding or brazing. A rivet interconnection may also include solder.
Patent GB-2383777-A (GB)
Title: Bulwark capping rail
Inventor: WHITAKER DEREK
IPC: E04F11/18
Filed: 2002-01-04
Abstract: A capping rail 7 of oval or D-section is fitted to the upper edge of a vessels bulwark 4 or gunnel. The rail may be hollow or solid and may be made of stainless steel, brass, wood or synthetic material. The rail may have key hole or pear shaped slots (8, Fig 2) on its underside which slide over bolt heads (10, Fig 3) provided on the gunnel or bulwark, to fix the rail in place. The rail may be curved to the shape of the gunnel or bulwark prior to, or during, installation. The rail may be seated on sealing compound to allow for expansion and contraction in differing temperatures.
Patent GB-2373055-A (GB)
Title: Method and apparatus for dynamically estimating the location on an oil-water interface in a petroleum reservoir
Inventor: MALINVERNO ALBERTO
IPC: E21B47/04
Filed: 2000-07-07
Abstract: Methods for locating an oil-water interface (26) in a petroleum reservoir include taking resistivity and pressure measurements over time and interpreting the measurements. The apparatus of the invention includes sensors (16, 18) preferably arranged as distributed arrays. According to a first method, resistivity and pressure measurements are acquired simultaneously during a fall-off test. Resistivity measurements are used to estimate the radius (rf) of the water flood front around the injector well based on known local characteristics. The flood front radius and fall-off pressure measurements are used to estimate the mobility ratio. According to a second method, resistivity and pressure measurements are acquired at a variety of times. Prior knowledge about reservoir parameters is quantified in a probability density function (pdf). Applying Bayes' Theorem, prior pdfs are combined with measurement results to obtain posterior pdfs which quantify the accuracy of additional information. As new measurements are acquired, posterior pdfs, updated for expected temporal variations, become prior pdfs for the new measurements. According to a third method, uncertainty about the reservoir parameters is represented by Gaussian pdfs. The relationship between measurements and reservoir parameters is locally approximated by a linear function. Uncertainties are quantified by a posterior covariance matrix.
Patent GB-2387163-A (GB)
Title: Plastic envelope or wallet with alternative seals
Inventor: LIM SOON HUAT
IPC: B65D27/00
Filed: 2002-04-02
Abstract: There is disclosed a writeable plastic envelope, pocket or wallet made from clear / translucent / semi-opaque / opaque plastic. This envelope, pocket or wallet has 2 seals, one a permanent seal and the other a temporary seal which allows repeated opening and closing of the envelope, pocket or wallet. When the flap is closed over the opening, the resealable tape / glue adheres the flap onto the body of the envelope, pocket or wallet, thereby, temporarily sealing the envelope, pocket or wallet and permit repeated usage of these envelopes, pockets and wallets. When permanent sealing of the envelope, pocket or wallet is required, the protective layer on the permanent seal is removed and the flap is closed over the opening of the envelope, pocket and wallet.
Patent GB-2387656-A (GB)
Title: Transformer probe
Inventor: PROCTOR KENNETH W
IPC: G01P3/488
Filed: 2002-04-16
Abstract: A probe (10) for sensing movement of a body of magnetic material comprises a magnetically energisable pole piece (30), a closed loop electrical circuit (20) having a first end (25) which is wound around the pole piece (30) and forms a pole piece coil (25) inductively coupled to the pole piece, the arrangement being such that movement of a body of magnetic material (70) relative to the pole piece (30) induces a current in the closed loop circuit (20), and a second end (45), remote from the pole piece (30), which forms a transformer primary coil. A transformer secondary coil (65) is inductively coupled to the primary coil (45), and terminated by a load resistance and means for measuring an output signal from the secondary coil. The primary (45) and secondary (65) coils form a transformer such that a current in the primary coil induces a voltage across the secondary coil. One or more shorting turns (60) of a conductor are inductively coupled to the primary (45) and secondary (65) coils.
Patent GB-2388060-A (GB)
Title: Filter module movable support frame
Inventor: JACKMAN MICHAEL
IPC: B01D65/00
Filed: 2002-05-02
Abstract: A handling apparatus suitable for supporting a water filter module 6 comprises a module 6 carriage means 10 and a module 6 carriage 10 support means 12. The carriage means 10 being moveable between a module 6 receiving position neighbouring a module 6 housing, and a module 6 transport position. The carriage 10 may be moveable relative on the support 12, such as being rotatable. The apparatus may aid the transport of water filter modules into / out of / around multiple module racks (fig.1) which would otherwise require 3-6 people to lift them manually.
Patent GB-2376817-A (GB)
Title: Fuse element positioning body
Inventor: KALRA VARINDER
IPC: H01H85/041
Filed: 2002-05-31
Abstract: A low overcurrent fuse has a fuse body 10 having a bore extending between first and second end caps 52,54 for receiving a fuse element assembly 42. The bore includes a positioning portion 18 of smaller diameter than the remainder of the bore to receive the fuse element assembly and to ensure that the fuse element 46 is centred within and spaced apart from the fuse body 10. The fuse body 10 may be rectangular and made of Alumina Zirconia and the bore circular. Multiple fuse elements may extend between the end caps 52,54.
Patent GB-2373193-A (GB)
Title: A balanced bladder for inflatable balls
Inventor: JAIN SATISH
IPC: A63B45/00
Filed: 1999-12-21
Abstract: A balanced bladder for inflatable balls having the characteristics to follow the desired trajectory along with the property to rebounce along the path of forward motion. The subject bladder comprises a shell and a valve fitted at the open end of the said shell. The said shell comprises at least a layer or at least a pair of layers of compounded synthetic latex and/or compounded natural rubber latex and a partial additional layer of synthetic latex and/or natural rubber latex provided diametrically opposite to the open end of the said shell characterized in that the said partial additional layer is superimposed on 2-20 % of the circumference of the said shell, having the weight conforming to the weight of the said valve. The invention also resides in the process for the preparation of the balanced bladder wherein the shell comprising at least a layer of compounded natural rubber latex and/or compounded synthetic latex and a partial additional layer of compounded natural rubber latex and/or compounded synthetic latex each is prepared by dipping the former in not only compounded natural rubber latex bath but also in the compounded synthetic latex bath. In an another embodiment, the process comprises dipping the former in the bath comprising blended compounded natural rubber latex and compounded synthetic latex. Finally, a valve is fixed at the open end of the resultant shell to obtain a balanced bladder.
Patent GB-2381214-A (GB)
Title: Particle formation method and apparatus
Inventor: KORDIKOWSKI ANDREAS
IPC: B01J2/04
Filed: 2002-07-17
Abstract: A method for preparing a target substance in particulate form comprises introducing a solution or suspension of a target substance and a compressed anti-solvent fluid into a particle formation vessel through separate first and second inlets so as to allow the anti-solvent fluid to extract the target substance from the solution or suspension and form particles of the target substance. The compressed anti-solvent fluid is introduced into the particle formation vessel at a sonic, near-sonic or supersonic velocity. The velocity of the anti-solvent fluid may be in the region of Mach 0.8-1.5 and the anti-solvent fluid may be introduced into the particle formation vessel as a single stream through a convergent nozzle. The anti-solvent fluid may be super-critical or near-critical and it may have a temperature and pressure sufficiently higher than the particle formation vessel as to ensure that Joule-Thomson cooling of the anti-solvent fluid as it enters the particle formation vessel does not lower its temperature to a level which affects the particle formation process. There may be two or more fluids carrying two or more target substances which are combined at the point of particle formation. The solution or suspension of the target substance and the anti-solvent fluid may meet, at an angle of 70{-110{, and mix immediately downstream of the point of anti-solvent fluid entry into the particle formation vessel. The particle formation vessel may be agitated. The particles formed may have a mean diameter of less than 1 m and a standard deviation of 2.5 or less. An apparatus suitable for use according to this method comprises a particle formation vessel 1 with first 23 and second 21 inlets, the solution or suspension of the target substance and the compressed anti-solvent fluid entering the particle formation vessel at different points and meeting immediately downstream 22 of the second inlet.
Patent GB-2395951-A (GB)
Title: Chemical bonding of polymer and bitumen
Inventor: AL NAGEIM HASSAN
IPC: C08J3/24
Filed: 2002-09-03
Abstract: A method of bonding together a polymer and bitumen comprises the steps of functionalising the surface of each material and bonding the modified materials with a crosslinking agent. The modification of the polymer and bitumen is preferably performed by treating the respective materials with an oxidising solution, such as chromic acid comprising potassium dichromate, water, and sulphuric acid. The polymer may be in the form of strips derived from a recycled plastics or rubber material. A particulate material is also disclosed, wherein the material comprises modified polymer particles bonded to modified bitumen with a crosslinking agent. The resulting product may be mixed with aggregates, such as gravel, cement, or pulverised fuel ash. The particulate material is stated to be used as chippings or for surface dressing, wherein the surface is a road, airfield, or pavement.
Patent GB-2379728-A (GB)
Title: Beverage dispensing equipment
Inventor: MILLER SIMON ROBERT
IPC: B67D1/00
Filed: 2001-08-28
Abstract: Cooling apparatus for beverage dispensing equipment in over-the-counter single-beer-line dispense delivery systems comprises an insulated outer tube member (4) mountable to stand above a counter and having an inlet end and a dispense end, a beer line (1) running inside the outer tube member (4), a chilled coolant supply line (2) and a chilled coolant outflow line (3) also running inside the outer tube member (4). A terminal component of metal is at the dispense end of the outer tube member (4). The terminal component has means to mount a beer tap in communication with the beer line (1). A chamber (9) is defined inside the terminal component, the chamber (9) being connected to the chilled coolant supply line (2) and chilled coolant outflow line (3) so that the chilled coolant is circulated through the terminal component (11). A fastening threading on the interior of the terminal component is positioned at the locating point of the beer tap, allowing for connection of the beer dispense tap.
Patent GB-2378465-A (GB)
Title: Roller cone cutting elements having an extension to diameter ratio of at least 0.829
Inventor: PORTWOOD GARY RAY
IPC: E21B10/16
Filed: 2001-11-05
Abstract: A roller cone drill bit includes three cones where the cutting elements are arranged on the cones in rows, such that the gage row is staggered with respect to the first row interior of the gage row, on at least two of the cones. The cutting elements have an extension to diameter ratio of at least 0.829.