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Carruthers
Antonia Erika Carruthers, Weisdale GB
| Patent application number | Description | Published |
|---|---|---|
| 20120134682 | METHOD AND APPARATUS FOR CLEARING AN OPTICAL CHANNEL - A method and apparatus for clearing an optical channel for transmitting data through free space between a first and second location includes a light beam, wherein the light beam has a spatially and/or time-dependent modulated intensity profile, and is substantially collimated so that the intensity profile is conserved over a specified distance of operation. The light beam includes a cross-sectional profile having regions of low and high intensity, portions of which are provided for the transmission of an optical data signal. A light source wavelength and intensity are selected for types of obscurant particles having optical properties whereby the radiation pressure acts on the particles, and the particles may then be either attracted into or repelled from portions of the spatially modulated optical beam, leaving certain portions of the optical channel beam absent of obscurant particles, thereby enabling transmission of optical data through the cleared optical channel with low attenuation. | 05-31-2012 |
Barry Carruthers, Edinburgh GB
| Patent application number | Description | Published |
|---|---|---|
| 20110056151 | WINDTURBINE SUPPORT TOWER WITH PENDULUM-DAMPING MEANS - The present invention relates to a tower ( | 03-10-2011 |
Dan Carruthers, Ottawa CA
| Patent application number | Description | Published |
|---|---|---|
| 20080262809 | METHOD AND SYSTEM FOR MODELLING PETROLEUM MIGRATION - A method for modelling the migration of reactant in a subsurface petroleum system is described. The method comprises in part generating a mesh for an area of the petroleum system. The mesh comprises a plurality of nodes, with each node representing a point in space in the area. The method also comprises calculating one or more variables representing one or more physical characteristics at each node in the area and determining the migration of reactant in the petroleum system based on the one or more variables. The method can also handle multiple reactant phases and non-static meshes. | 10-23-2008 |
Donald Ian Carruthers, Kirkby In Furness GB
| Patent application number | Description | Published |
|---|---|---|
| 20110240368 | BENDING OF A SHAFT OF A STEERABLE BOREHOLE DRILLING TOOL - In certain embodiments, a steerable drilling tool is provided including a rotatable shaft extending through a housing where the shaft and the housing are separated by at least one bearing or two sets of bearings, the shaft having a first portion terminating at a first end of the shaft and a second portion terminating at a second end of the shaft. The steerable drilling tool may further include a drill bit structure operatively coupled to the first portion and a steering subsystem comprising a pair of bearings operatively coupled to the first portion. The steering subsystem may be configured to angulate the shaft by exerting force substantially through the pair of bearings. In certain embodiments, the first portion is between the first end and about one-third of the length of the shaft from the first end towards the second end. | 10-06-2011 |
Mark Ian Carruthers, Newport GB
| Patent application number | Description | Published |
|---|---|---|
| 20100187097 | METHOD OF PLASMA VAPOUR DEPOSITION - A method induces plasma vapour deposition of metal into a recess in a workpiece. The method achieves re-sputtering of the metal at the base of the recess with a sputter gas by utilising a mixture of Ar and He and/or Ne as the sputter gas with a ratio of He and/or Ne:Ar of at least about 10:1. | 07-29-2010 |