Patents by Inventor Paul Bartholomew

Paul Bartholomew 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).

  • Publication number: 20100300407
    Abstract: With reference to FIG. 1, the present invention provides an internal combustion engine comprising a variable volume combustion chamber (10), an air intake passage (18), a throttle (23), a bypass passage (28) which bypasses the throttle (23) and via which air and/or recirculated exhaust gas is supplied to the intake passage (18) via a delivery nozzle (27) located downstream of the throttle (23). A fuel injector (20) delivers fuel to a mixing chamber and the bypass passage (28) is connected to the mixing chamber so that air or recirculated exhaust gas flowing through the bypass chamber entrains fuel present in the mixing chamber and a resulting mixture is delivered to the intake passage (18) via the delivery nozzle (28).
    Type: Application
    Filed: September 15, 2008
    Publication date: December 2, 2010
    Inventors: Paul Bartholomew Ravenhill, Richard Matthew Hoolahan
  • Publication number: 20100213287
    Abstract: With reference to FIG. 1, the present invention provides a fuel injector (19) comprising a reed valve (35). The reed valve has at least one orifice and at least one reed valve blade, the or each reed valve blade having a valve head attached to at least one resilient spring arm. The or each valve head opens and closes a respective orifice in the valve seat. A support surrounds the reed valve blade(s). Each spring arm extending inwardly from the support. Each spring arm is curved.
    Type: Application
    Filed: September 22, 2008
    Publication date: August 26, 2010
    Applicant: SCION-SPRAYS LIMITED
    Inventors: Paul Bartholomew Ravenhill, Richard Matthew Hoolahan, Jeffrey Allen, Steven Barraclough
  • Publication number: 20100212635
    Abstract: With reference to FIG. 1, the present invention provides, an internal combustion engine comprising a variable volume combustion chamber (10); an air intake passage (103,104) via which air is delivered to the combustion chamber (10); a fuel injector (107) delivering fuel into the air intake passage (103,107); and a fuel storage tank (107) for storing fuel to be injected. The fuel injector (107) is at least in part immersed in fuel, the fuel injector (107) being located at least in part in a fuel chamber (108b) which is connected to or which forms part of the fuel storage tank (108). An escape path is provided for escape of fuel vapour from the fuel injector (107) and/or from the proximity of the fuel injector to the fuel storage tank (108).
    Type: Application
    Filed: September 12, 2008
    Publication date: August 26, 2010
    Inventors: Jeffrey Allen, Paul Bartholomew Ravenhill, Steven Barraclough, Richard Matthew Hoolahan
  • Publication number: 20100101537
    Abstract: A method of operating an internal combustion engine. With reference to FIG. 1, fuel is supplied to charge air using an injector (116) which in each operation delivers a set amount of fuel. The amount of fuel supplied to the charge air in each engine cycle is controlled by how many times the injector (116) operates in each cycle. A desired fuel demand is calculated as a number of operations of the injector per cycle, calculated to at least one decimal place. The desired fuel demand is rounded to a near integer to provide an output fuel demand for the injector as a number of operations of the injector for the next operating cycle in varying operating conditions of the engine. The controller calculates an aggregate number of operations for a plurality of engine cycles which is closer to an aggregated desired fuel demand for the plurality of cycles than if for each cycle of the plurality of output cycles the output fuel demand is calculated independently.
    Type: Application
    Filed: November 9, 2009
    Publication date: April 29, 2010
    Applicant: Scion-Sprays Limited
    Inventors: Jeffrey Allen, Paul Bartholomew Ravenhill, Steven Barraclough, Benjamin David Smither, Timothy Guy Drake
  • Publication number: 20100044474
    Abstract: The present invention relates to (with reference to FIG. 1) an electrostatic fluid atomiser which has a fluid inlet (2) and a fluid channel (3) leading fluid to a wall (6) in which orifices (100) are formed. Fluid passing out of the orifices (100) is atomised into droplets which fall into a first set of larger droplets (12) and a second set of smaller droplets (13). Two charging electrodes (4,6) charge fluid passing through the channel (3). A droplet separator (200) has a separator electrode (16) which applies an electrical force on the droplets and deflects the smaller droplets (13) to he collected by a droplet collector (15) while the larger droplets (12) continue undeflected out of a droplet (201) of the atomiser.
    Type: Application
    Filed: July 6, 2006
    Publication date: February 25, 2010
    Inventors: Jeffrey Allen, Paul Bartholomew Ravenhill
  • Patent number: 7617039
    Abstract: The present invention relates to a method of operating an internal combustion engine. With reference to FIG. 1, fuel is supplied to charge air using an injector (116) which in each operation delivers a set amount of fuel. The amount of fuel supplied to the charge air in each engine cycle is controlled by how many times the injector (116) operates in each cycle. A desired fuel demand is calculated as a number of operations of the injector per cycle, calculated to at least one decimal place. The desired fuel demand is rounded to a near integer to provide an output fuel demand for the injector as a number of operations of the injector for the next operating cycle in varying operating conditions of the engine.
    Type: Grant
    Filed: February 28, 2008
    Date of Patent: November 10, 2009
    Assignee: Scion-Sprays Limited
    Inventors: Jeffrey Allen, Paul Bartholomew Ravenhill, Steven Barraclough, Benjamin David Smither, Timothy Guy Drake
  • Publication number: 20090222193
    Abstract: The present invention relates to a method of operating an internal combustion engine. With reference to FIG. 1, fuel is supplied to charge air using an injector (116) which in each operation delivers a set amount of fuel. The amount of fuel supplied to the charge air in each engine cycle is controlled by how many times the injector (116) operates in each cycle. A desired fuel demand is calculated as a number of operations of the injector per cycle, calculated to at least one decimal place. The desired fuel demand is rounded to a near integer to provide an output fuel demand for the injector as a number of operations of the injector for the next operating cycle in varying operating conditions of the engine.
    Type: Application
    Filed: February 28, 2008
    Publication date: September 3, 2009
    Inventors: Jeffrey Allen, Paul Bartholomew Ravenhill, Steven Barraclough, Benjamin David Smither, Timothy Guy Drake
  • Publication number: 20080276358
    Abstract: A toilet seat assembly comprising a seat (2) and hinge means (5) for hingedly attaching the seat (2) to a toilet. The hinge means (5) comprises a mounting block (50) having an arcuate slot (17), and an arcuate seat tang (20) extends rearwardly of the seat which is slidable in the arcuate slot of the mounting block. The assembly may also comprise a lid (3); and hinge means for hingedly attaching the lid (3) to a toilet; and an arcuate lid tang (23) extending rearwardly of the lid which is also slidable in the arcuate slot (17) of the mounting block (50).
    Type: Application
    Filed: September 14, 2005
    Publication date: November 13, 2008
    Inventors: Jeffrey Allen, Paul Bartholomew Ravenhill
  • Publication number: 20080277807
    Abstract: A mixing arrangement, comprises an electrostatic atomiser which feeds a first fluid into a walled-channel where it mixes with a second fluid; the electrostatic atomiser incorporating a charging electrode (3) and a nozzle (2) with an array of orifices through which charged particles of the first fluid exit the atomiser; wherein said charging electrode (3) substantially spans said array of orifices; and said charging electrode (3) and said nozzle (2) are pointed neither into nor towards said channel but are shaped and sized to constitute a part of or the entire wall of said channel in which said first and second fluids are mixed.
    Type: Application
    Filed: September 22, 2005
    Publication date: November 13, 2008
    Inventors: Jeffrey Allen, Paul Bartholomew Ravenhill
  • Publication number: 20080202465
    Abstract: The present invention relates to an internal combustion engine having an injector which functions as a positive displacement pump and dispenses an amount of lubricant fixed for each and every operation of the injector. The fluid dispensed could be a lubricant delivered directly to crankshaft bearings, camshaft bearings, tappets or cylinder sleeve. Alternatively the fluid could be fuel, water or urea delivered to an exhaust system upstream of a catalytic converter. The injector can have a one-way valve with a valve element having a domed or conical surface for directing fluid flow across a sharp edge which induces turbulence in the fluid flow.
    Type: Application
    Filed: February 27, 2008
    Publication date: August 28, 2008
    Inventors: Jeffrey Allen, Paul Bartholomew Ravenhill, Steven Barraclough
  • Publication number: 20080191068
    Abstract: An electrostatic atomizer comprises a fluid channel terminating in one or more orifices; means for controlling the flow of fluid out of the orifices; means for electrically charging fluid so that the fluid atomizes when it exits the or each orifice, wherein the atomizer further comprises control means which automatically pulse the flow ‘ON’ and ‘OFF’ and control means which automatically pulse the application of the charging voltage ‘ON’ and ‘OFF’, the ‘ON’ flow pulse and the ‘ON’ charging pulse being set to substantially coincide one with another, said control means switching electronically the charging voltage ‘ON’/‘OFF’.
    Type: Application
    Filed: September 22, 2005
    Publication date: August 14, 2008
    Applicant: SCION SPRAYS LIMITED
    Inventors: Jeffrey Allen, Paul Bartholomew Ravenhill
  • Publication number: 20060196016
    Abstract: A device is provided for gripping a cable having a free end. The device includes a first entrance port for receiving the free end of the cable. A first exit port is in communication with the first entrance port from where the free end of the cable exits the device. A second entrance port is included for receiving the free end of the cable after it leaves the exit port. A second exit port is in communication with the second entrance port where the free end of the cable exits the device for the second time. A first cable guide forms a pathway between the first entrance port and the first exit port. A first retention member is slidably disposed within the first cable guide such that the first retention member slides axially within the device only upon entrance of the cable within the first cable guide or when the cable is pulled toward the first entrance port.
    Type: Application
    Filed: March 1, 2006
    Publication date: September 7, 2006
    Inventors: Xueming Cai, Paul Bartholomew
  • Patent number: 6981528
    Abstract: A tool head for use with an automatic cable tie installation system. The tool head incorporates a pawl gear mechanism which eliminates the potential for the severed excess tail portion of the tie from becoming jammed within the tensioning assembly of the tool head. Particularly, the pawl gear mechanism of the present invention includes at least one auxiliary guide ramp for contacting and positively guiding the severed tail portion into the exit chute of the tool head.
    Type: Grant
    Filed: October 7, 2003
    Date of Patent: January 3, 2006
    Assignee: Thomas & Betts International, Inc.
    Inventor: Paul Bartholomew
  • Publication number: 20050210129
    Abstract: A system is for use in printing data on a printer. A client interfaces with an applications program that has a print capability. A print server in communication with the client controls a printing of data communicated to the print server by the client. A user interface manager communicates with the print server by an asynchronous bi-directional communications channel between the print server and the client. The user interface manager responds to a user interface message sent from the print server to display information to a user in a flexible custom manner. One exemplary system includes a user display. The message sent to the client user interface manager by the server is a language neutral message that is interpreted by the user interface manager and converted to another representation for presentation to the user on the user display. When used in a printing environment, i.e.
    Type: Application
    Filed: March 19, 2004
    Publication date: September 22, 2005
    Inventors: Jin Feng, Lazar Ivanov, Kenton Shipley, Paul Bartholomew
  • Publication number: 20050072486
    Abstract: A tool head for use with an automatic cable tie installation system. The tool head incorporates a pawl gear mechanism which eliminates the potential for the severed excess tail portion of the tie from becoming jammed within the tensioning assembly of the tool head. Particularly, the pawl gear mechanism of the present invention includes at least one auxiliary guide ramp for contacting and positively guiding the severed tail portion into the exit chute of the tool head.
    Type: Application
    Filed: October 7, 2003
    Publication date: April 7, 2005
    Inventor: Paul Bartholomew
  • Patent number: 5984139
    Abstract: An air pressurized liquid decanter is disclosed, which is generally comprised of a pump unit, an external handle, an insulated container body which includes an interior vessel and a base unit. The pump unit is contained within a pump housing which has radially disposed apertures. A cam shaft residing within the pump housing extends through the horizontally disposed apertures and is affixed in rotatable engagement to the external handle. The cam shaft is maintained in mechanical communication with a vertically-movable check valve residing within the pump housing. The vertically-movable check valve is, in turn, placed in mechanical communication with a support disk residing within the pump housing. The support disk overlays a flexible bellows unit, which has an open upper end in atmospheric communication with the vertically-movable check valve and pump housing. The flexible bellows unit also has an open lower end in atmospheric communication with a bulkhead, and with the insulated container body.
    Type: Grant
    Filed: July 31, 1998
    Date of Patent: November 16, 1999
    Assignee: Megatrade International, Inc.
    Inventors: Jorge E. Moran, Gary L. Lowrey, Jon Conway, Greg Bigham, Paul Bartholomew
  • Patent number: 5531606
    Abstract: An electrical connector component assembly terminates discrete conductors of a multiconductor data cable. The component assembly includes an insulative component housing (122, 124) having a mating end for engagement with a mating electrical connection device and a cable receiving end for terminating the multiconductor cable. A plurality of electrical contacts (126, 128) are supported by the component housing. Each of the contacts has a conductor terminating end and a mating connection end. The contacts are supported in the component housing in a pair of horizontally extending, vertically spaced rows with each contact of one row being aligned with a respective contact of the other row. The contacts of one row are directly electrically shunted (126g) to the aligned contacts of the other row. Electrical shielding (138, 139) is disposed around the contacts and includes a shield extension (168) extending between at least two of the contacts.
    Type: Grant
    Filed: July 14, 1993
    Date of Patent: July 2, 1996
    Assignee: Thomas & Betts Corporation
    Inventors: Julio F. Rodrigues, Paul Bartholomew