Brewster, GB
Barrie Brewster, East Sussex GB
Patent application number | Description | Published |
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20100135784 | VACUUM PUMP - A pump insert ( | 06-03-2010 |
Barrie Dudley Brewster, Brighton GB
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20090162220 | Vacuum pump - A vacuum pump having a vacuum pumping mechanism mounted for rotation by a shaft and a brushless motor for rotating the shaft where the vacuum pumping mechanism comprises a turbo pumping mechanism comprising pumping stages, and a molecular drag pumping mechanism comprising at least one pumping stage, and a shaft supported for rotation by bearings, and where the motor comprises a permanent magnet rotor fixed relative to the shaft and the rotor has four poles and a stator has non-overlapping stator coils. | 06-25-2009 |
20140035412 | Magnetic Bearing Assembly - Stray magnetic fields created by non-symmetrical magnetisation of the permanent magnets in a rotating magnet array of a magnetic bearing assembly, when used in turbo molecular pumps, can cause significant problems to devices such as scanning electron microscopes. In order to minimise the stray fields, at least the dipole and quadrupole moments of each magnet in the array is first measured. The magnets in the array are then arranged relative to one another such that both the dipole and quadrupole moments are minimised, thus minimising the stray magnetic field when the magnet array rotates in the turbomolecular pump. | 02-06-2014 |
20140369831 | Vacuum Pump - A pump insert ( | 12-18-2014 |
Barrie Dudley Brewster, East Sussex GB
Patent application number | Description | Published |
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20100065995 | VIBRATION ISOLATOR - A vibration isolator is described for inhibiting transfer of vibration to an apparatus during evacuation thereof by a pump. The isolator comprising a bellows for isolating from the ambient atmosphere fluid drawn from the apparatus by the pump. A first flange is connected to one end of the bellows for mounting the isolators the apparatus, and a second flange is connected to the other end of the bellows for mounting the isolator to the pump. The bellows surrounds a resilient element, preferably a helical tension spring, which is substantially co-axial with the bellows. The resilient element has a first end located proximate to the first flange and connected to the second flange, and a second end located proximate to the second flange and connected to the first flange. | 03-18-2010 |
20100068054 | VACUUM PUMP - A vacuum pump comprises a housing, a drive shaft supported by a beating arrangement for rotation relative to the housing about an axis, and a pumping mechanism comprising a stator component mounted on the housing and a disk-shaped rotor component mounted on the drive shaft axially proximate the stator component. The bearing arrangement comprises a bearing supported in both radial and axial directions by a resilient support, comprising inner and outer annular portions connected by a plurality of flexible members, so that there is a fixed relation between the inner race of the bearing and the outer portion of the resilient support to determine the axial clearance between the rotor and stator components of the pumping mechanism. | 03-18-2010 |
20100215475 | Vacuum Pump - A turbomolecular vacuum pump ( | 08-26-2010 |
Barry S. Brewster, Royston GB
Patent application number | Description | Published |
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20110059551 | Assay Device - Disclosed is an assay device to determine the presence of at least one analyte of interest in a liquid sample, the device comprising means for generating a first signal (the ‘test’ signal) which indicates the presence and/or amount of analyte of interest in the sample; and means for generating a second signal, the generation of which second signal indicates both (a) the test has been successfully conducted, and that (b) sufficient time has elapsed following contact of the assay device with the liquid sample for the test to be read and the first signal to have been properly generated. | 03-10-2011 |
Barry Sinclair Brewster, Royston GB
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20140093427 | ASSAY DEVICE FOR LIQUID SAMPLE - Disclosed is an assay device comprising liquid transport means adapted to take up a liquid sample and conduct the liquid to an analyte detection region operable to provide a test signal indicative of the presence and/or amount of an analyte in the liquid sample; the assay device further comprising a sample presence signal generation means, which is not generated by means of immunoreaction. This sample presence signal generation means can comprise a coloured portion, which is overlaid by a material (e.g. nitrocellulose) that is opaque, when dry, and translucent or transparent, when wet, to allow the coloured portion to become visible to the user. In another embodiment the signal generation means comprises a colour changing material which under-goes a change in its visible properties upon wetting (eg. pH indication). A third embodiment uses a mobilisable detectable which, when wetted by the sample, is carried along resulting in a streaked line parallel with the flow direction. | 04-03-2014 |
James Brewster, Oxford GB
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20100134501 | DEFINING AN ANIMATION OF A VIRTUAL OBJECT WITHIN A VIRTUAL WORLD - A method of defining an animation of a virtual object within a virtual world, wherein the animation comprises performing, at each of a series of time points, an update that updates values for object attributes of the virtual object, the method comprising: allowing a user to define the update by specifying, on a user interface, a structure representing the update, wherein the structure comprises a plurality of items and one or more connections between respective items, wherein each item represents a respective operation that may be performed when performing the update and wherein a connection between two items represents that data output by the operation represented by one of those two items is input to the operation represented by the other of those two items; allowing the user to specify that the structure comprises one or more items in a predetermined category, the predetermined category being associated with a predetermined process such that an item belongs to the predetermined category if performing the respective operation represented by that item requires execution of the predetermined process, wherein said predetermined process may be executed at most a predetermined number of times at each time point; and applying one or more rules that (a) restrict how the user may specify the structure to ensure that performing the defined update does not require execution of the predetermined process more than the predetermined number of times, (b) do not require the user to specify that an item in the predetermined category is at a particular location within the structure relative to other items and (c) do not require the user to explicitly specify which operations need to be performed before execution of the predetermined process when performing the update nor which operations need to be performed after execution of the predetermined process when performing the update. | 06-03-2010 |
Martin Brewster, Buckinghamshire GB
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20090049965 | BOOK TRIMMING APPARATUS - The book trimming apparatus comprises guides ( | 02-26-2009 |
20140130648 | BOOK TRIMMING APPARATUS - The book trimming apparatus includes guides which direct a collated and, optionally, bound book to a fore-edge trimming station. The book trimming apparatus further includes a transfer station and a side-edge trimming station. For both the fore-edge trimming station and the side-edge trimming station in each case the book is orientated so that the edge to be trimmed is arranged substantially parallel to the direction of motion of the book. The automated book trimming apparatus is particularly suited for use in combination with collation and binding stations in in-line book manufacture. | 05-15-2014 |
Paul Brewster, Belfast GB
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20110012358 | WAVE ENERGY CONVERSION DEVICE - A wave energy conversion apparatus comprising:—one or more movable buoyant members; one or more movable reaction masses located independent of the sea bed; said one or more reaction masses being suspended beneath said one or more buoyant members by a plurality of linkages, each linkage comprising an elongate non-rigid member which allows the or each buoyant member and the or each reaction mass to each move relative to one another; at least two of said linkages extending between the or one of said one or more buoyant members and the or one of said one or more reaction masses at an orientation inclined to the vertical; each linkage comprising, or being associated with, at least one extensible member whereby the effective length of each linkage can vary between an extended and a non-extended configuration such that the or each reaction mass can move with respect to the or each buoyant member in both a vertical and a horizontal direction, the extensible member providing a restoring force for biasing the linkage to a non-extended configuration whereby the linkage is maintained in tension, and one or more converters for converting kinetic energy of relative movement between the or each buoyant member and the or each reaction mass into useful power. | 01-20-2011 |
Simon Christopher Brewster, Warwickshire GB
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20120216773 | INJECTION OF GASEOUS FUELS - A gaseous fuel injection system ( | 08-30-2012 |
Simon Christopher Brewster, Shipston On Stour GB
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20120216784 | COMBUSTION OF LOW VAPOUR-PRESSURE FUELS IN SPARK IGNITION ENGINES - A method of vaporising fuel in a spark-ignition engine using the supply of heat into the cylinder to wholly or partly vaporise the fuel, the heat being supplied by operation of a spark plug. One or more engine conditions can be sensed, such as engine temperature, coolant temperature, the cumulative amount of fuel supplied, engine speed or the time elapsed since start-up, and the spark plug operated to supply heat in response to such condition(s). The heat can be supplied by operating the spark plug more than once in an engine cycle or by operating the spark plug to form a spark over a time period determined in response to the engine condition. An AC circuit can be used to produce a substantially continuous spark over a defined time period or suitable angular duration. The heat can be supplied by operating the spark plug prior to engine cranking, to generate heat in the cylinder at engine start-up. A method of reducing spark plug fouling is also disclosed. This method operates the spark plug outside the period required for fuel ignition in order to supply additional heat to the spark plug terminals. Heat can be supplied by operating the spark plug more than once in an engine cycle. Heat can be supplied by operating the spark plug so as to form a spark over a time period representing at least 90° of crank angle. An AC circuit can be used to produce a substantially continuous spark over a defined time period or a suitable angular duration. The heat energy supplied by the spark during a single engine cycle can be in the order of 1000 mJ. These methods can be applied to air-assisted direct fuel injection systems. | 08-30-2012 |
20140246508 | GASEOUS METERING CONTROL FOR DUAL FLUID INJECTOR - A fuel injection system ( | 09-04-2014 |