Patents by Inventor George Griffiths
George Griffiths has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Publication number: 20240390916Abstract: A filter for an electrostatic precipitator comprising: a plurality of spaced-apart, electrode films having electrical conductivity, arranged to be alternately powered at high and low electrical potentials, each of said electrode films having a leading edge, a trailing edge and two opposing side edges therebetween that extend in the direction of airflow; and first and second pluralities of spaced-apart, rigid isolation members bonded to each of the leading and trailing edges of the plurality of electrode films respectively, wherein each isolation member is bonded, via a substantially continuous, preferably flat, surface thereof, to at least some of said leading or trailing edges, thereby fixing the electrode films in the required spaced-apart arrangement thereof.Type: ApplicationFiled: July 31, 2024Publication date: November 28, 2024Inventors: Geoffrey Norman Walter GAY, George GRIFFITHS
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Patent number: 12083538Abstract: A filter for an electrostatic precipitator comprising: a plurality of spaced-apart, electrode films having electrical conductivity, arranged to be alternately powered at high and low electrical potentials, each of said electrode films having a leading edge, a trailing edge and two opposing side edges therebetween that extend in the direction of airflow; and first and second pluralities of spaced-apart, rigid isolation members bonded to each of the leading and trailing edges of the plurality of electrode films respectively, wherein each isolation member is bonded, via a substantially continuous, preferably flat, surface thereof, to at least some of said leading or trailing edges, thereby fixing the electrode films in the required spaced-apart arrangement thereof.Type: GrantFiled: May 18, 2020Date of Patent: September 10, 2024Assignee: DARWIN TECHNOLOGY INTERNATIONAL LIMITEDInventors: Geoffrey Norman Walter Gay, George Griffiths
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Publication number: 20220219177Abstract: A filter for an electrostatic precipitator comprising: a plurality of spaced-apart, electrode films having electrical conductivity, arranged to be alternately powered at high and low electrical potentials, each of said electrode films having a leading edge, a trailing edge and two opposing side edges therebetween that extend in the direction of airflow; and first and second pluralities of spaced-apart, rigid isolation members bonded to each of the leading and trailing edges of the plurality of electrode films respectively, wherein each isolation member is bonded, via a substantially continuous, preferably flat, surface thereof, to at least some of said leading or trailing edges, thereby fixing the electrode films in the required spaced-apart arrangement thereof.Type: ApplicationFiled: May 18, 2020Publication date: July 14, 2022Inventors: Geoffrey Norman Walter GAY, George GRIFFITHS
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Patent number: 10549395Abstract: A hand tool enabling self-aligned placement and post alignment clamping of a surface mounted tooling element and a method for manufacturing such a tool. Using an additive manufacturing process, a tool housing may be manufactured in which one or more internal voids allow insertion and rotational movement along and about a longitudinal axis of the housing, respectively, of a member having a radially extending portion. A handle and a brace may be coupled to the proximal and distal ends of the member to facilitate operation of the tool and placement of the surface mounted tooling element, respectively. Such member may also be spring loaded to enable the tool to clamp itself to a workpiece during the mounting operation, with the radially extending member portion limiting rotational travel of the brace.Type: GrantFiled: January 11, 2018Date of Patent: February 4, 2020Assignee: ROLLS-ROYCE CORPORATIONInventors: George Griffiths, Andrew Stewart
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Publication number: 20190210171Abstract: A hand tool enabling self-aligned placement and post alignment clamping of a surface mounted tooling element and a method for manufacturing such a tool. Using an additive manufacturing process, a tool housing may be manufactured in which one or more internal voids allow insertion and rotational movement along and about a longitudinal axis of the housing, respectively, of a member having a radially extending portion. A handle and a brace may be coupled to the proximal and distal ends of the member to facilitate operation of the tool and placement of the surface mounted tooling element, respectively. Such member may also be spring loaded to enable the tool to clamp itself to a workpiece during the mounting operation, with the radially extending member portion limiting rotational travel of the brace.Type: ApplicationFiled: January 11, 2018Publication date: July 11, 2019Inventors: George Griffiths, Andrew Stewart
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Patent number: 10286405Abstract: An air cleaning device for removing aerosol particles from an air stream comprising: a particle charger comprising a housing and an electrode arrangement therein for generating air ions in the air stream, the particle charger having a particle charging zone within which, in use, aerosol particles in the air stream are electrically charged via collision with the air ions; a filter for precipitating electrically charged aerosol particles from the air stream moving through the device; and an air mover, comprising a casing, for moving the air stream through the device; wherein the particle charger and the air mover are provided upstream of the filter; and wherein the housing of the particle charger is hermetically sealed to the casing of the air mover in the direction of air flow through the device, such that the particle charger and the air mover are intimately coupled together, whereby all air entering the device has to pass through both the particle charger and the air mover.Type: GrantFiled: October 20, 2016Date of Patent: May 14, 2019Assignee: Darwin Technology International LimitedInventors: George Griffiths, Geoffrey Norman Walter Gay, Mark Gaskell
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Publication number: 20170113229Abstract: An air cleaning device for removing aerosol particles from an air stream comprising: a particle charger comprising a housing and an electrode arrangement therein for generating air ions in the air stream, the particle charger having a particle charging zone within which, in use, aerosol particles in the air stream are electrically charged via collision with the air ions; a filter for precipitating electrically charged aerosol particles from the air stream moving through the device; and an air mover, comprising a casing, for moving the air stream through the device; wherein the particle charger and the air mover are provided upstream of the filter; and wherein the housing of the particle charger is hermetically sealed to the casing of the air mover in the direction of air flow through the device, such that the particle charger and the air mover are intimately coupled together, whereby all air entering the device has to pass through both the particle charger and the air mover.Type: ApplicationFiled: October 20, 2016Publication date: April 27, 2017Inventors: George Griffiths, Geoffrey Norman Walter Gay, Mark Gaskell
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Publication number: 20160229362Abstract: An auxiliary Powerbox to generate electricity through an additional alternator configuration in an emergency vehicle which reduces fuel consumption and minimizes wear factors associated with idling the engine when the vehicle is at rest and when the vehicle's primary engine is not operating. The system is an auxiliary system that provides electrical power by means of a small internal combustion engine and an alternator and is intended to provide electrical power to a vehicle when the main engine of the vehicle is shut down. The system, the DC Powerbox, has an independent fuel system and cooling system however the fuel and cooling systems could be incorporated into the vehicles respected systems.Type: ApplicationFiled: December 31, 2015Publication date: August 11, 2016Inventors: Steven Brutus, George Griffiths
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Publication number: 20130067877Abstract: An air cleaning filter for an air conditioning system comprising a rigid frame having a length, a width and a depth, to which flexible filter material is mounted, the filter material being of greater cross-sectional area than the rigid frame, and including at least two peaks and one trough therein, the maximum peak-to-trough amplitude of which is greater than the depth of the rigid frame. The length and width of the filter are adapted so as to be positioned, in use, in a direction that is substantially perpendicular to the direction of airflow of the air being filtered, whilst the depth thereof is adapted so as to be positioned, in use, in a direction that is substantially parallel to said direction of airflow.Type: ApplicationFiled: September 13, 2012Publication date: March 21, 2013Inventors: George Griffiths, Geoffrey Norman Walter Gay
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Publication number: 20120152114Abstract: A system for enhancing air filter efficiency in an air conditioning apparatus comprising an air conditioning apparatus, having an associated air filter (13), and a dust charging device (5) that is external to the air conditioning apparatus for electrically charging dust particles in air that is drawn into the air conditioning apparatus. Also a method of improving air conditioning air filter efficiency comprising the step of providing a dust charging device for electrically charging dust externally of an air conditioning apparatus, having an associated air filter, and in a position to charge dust particles in air that is drawn into the air conditioning apparatus.Type: ApplicationFiled: March 2, 2010Publication date: June 21, 2012Inventors: George Griffiths, Geoffrey Norman Walter Gay
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Patent number: 7655076Abstract: Air cleaning device has a particle charging zone comprising a conducting sheet having a plurality of apertures, through which air can be passed, and a plurality of corona emitters each associated with an aperture, and a filter.Type: GrantFiled: April 21, 2005Date of Patent: February 2, 2010Assignee: Darwin Technology International LimitedInventors: George Griffiths, Geoffrey Norman Walter Gay
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Publication number: 20090031899Abstract: A volatile substance filter comprises volatile substance adsorber material particles on plastics material support surfaces extending parallel to the direction of gas flow through the filter.Type: ApplicationFiled: July 13, 2006Publication date: February 5, 2009Applicant: VALERION 2 LIMITEDInventors: Geoffrey Norman Walter Gay, George Griffiths
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Publication number: 20080034973Abstract: Air cleaning device has a particle charging zone comprising a conducting sheet having a plurality of apertures, through which air can be passed, and a plurality of corona emitters each associated with an aperture, and a filter.Type: ApplicationFiled: April 21, 2005Publication date: February 14, 2008Applicant: DARWIN TECHNOLOGY LIMITEDInventors: George Griffiths, Geoffrey Gay
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Patent number: 7014688Abstract: A particle precipitation device for removing particles entrained in a gas stream includes an array of passages through which a gas stream can be directed relatively freely. The passages are provided between plastics walls adapted to create an electrical field within the array. The plastics walls may have areas of conductive material in contact therewith. High and low electrical potentials alternately applied to isolated areas of the conductive material provide charged sites in the array for collecting particles from the gas stream. Alternatively, the plastics walls may have electret properties.Type: GrantFiled: June 8, 2004Date of Patent: March 21, 2006Assignee: Darwin Technology LimitedInventors: George Griffiths, Geoffrey Norman Walter Gay
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Publication number: 20040226448Abstract: A particle precipitation device for removing particles entrained in a gas stream includes an array of passages through which a gas stream can be directed relatively freely. The passages are provided between plastics walls adapted to create an electrical field within the array. The plastics walls may have areas of conductive material in contact therewith. High and low electrical potentials alternately applied to isolated areas of the conductive material provide charged sites in the array for collecting particles from the gas stream. Alternatively, the plastics walls may have electret properties.Type: ApplicationFiled: June 8, 2004Publication date: November 18, 2004Applicant: Darwin Technology LimitedInventors: George Griffiths, Geoffrey Norman Walter Gay
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Patent number: 6749669Abstract: A particle precipitation device for removing particles entrained in a gas stream includes an array of passages (10) through which a gas stream can be directed relatively freely. The passages are provided between plastics walls adapted to create an electrical field within the array. The plastics walls may have areas of conductive material (1, 2) in contact therewith. High and low electrical potentials alternately applied to isolated areas of the conductive material provide charged sites in the array for collecting particles from the gas stream. Alternatively, the plastics walls may have electret properties.Type: GrantFiled: February 5, 2002Date of Patent: June 15, 2004Assignee: Darwin Technology LimitedInventors: George Griffiths, Geoffrey Norman Walter Gay