Patents by Inventor Barrie Mecrow
Barrie Mecrow 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).
-
Patent number: 8803393Abstract: Disclosed is a stator device adapted to be arranged in an electrical machine, where the electrical machine further includes a moving device, where the stator device is a multi-phase stator device, where the phases are arranged side-by-side in a direction perpendicular to direction of motion of the moving device, and where each phase comprises a first stator core section having a set of teeth, a second stator core section having a set of teeth, and a coil, and where the teeth are arranged to protrude towards the moving device; and wherein at least two neighboring phases share a stator core section, so that the first stator core section of a first phase and a second stator core section of a second phase is formed as a single unit.Type: GrantFiled: April 12, 2013Date of Patent: August 12, 2014Assignee: Hoganas AB (Publ)Inventors: Glynn James Atkinson, Alan G Jack, Barrie Mecrow
-
Publication number: 20130264893Abstract: Disclosed is a stator device adapted to be arranged in an electrical machine, where the electrical machine further includes a moving device, where the stator device is a multi-phase stator device, where the phases are arranged side-by-side in a direction perpendicular to direction of motion of the moving device, and where each phase comprises a first stator core section having a set of teeth, a second stator core section having a set of teeth, and a coil, and where the teeth are arranged to protrude towards the moving device; and wherein at least two neighboring phases share a stator core section, so that the first stator core section of a first phase and a second stator core section of a second phase is formed as a single unit.Type: ApplicationFiled: April 12, 2013Publication date: October 10, 2013Applicant: HOGANAS AB (PUBL)Inventors: GLYNN JAMES ATKINSON, ALAN G. JACK, BARRIE MECROW
-
Patent number: 8441162Abstract: Disclosed is a stator device adapted to be arranged in an electrical machine, where the electrical machine further comprises a moving device, where the stator device is a multi-phase stator device, where the phases are arranged side-by-side in a direction perpendicular to direction of motion of the moving device, and where each phase comprises a first stator core section having a set of teeth, a second stator core section having a set of teeth, and a coil, and where the teeth are arranged to protrude towards the moving device; and wherein at least two neighboring phases share a stator core section, so that the first stator core section of a first phase and a second stator core section of a second phase is formed as a single unit.Type: GrantFiled: September 20, 2010Date of Patent: May 14, 2013Assignee: Hoganas AB (Publ)Inventors: Glynn James Atkinson, Alan G. Jack, Barrie Mecrow
-
Publication number: 20120200177Abstract: Disclosed is a stator device adapted to be arranged in an electrical machine, where the electrical machine further comprises a moving device, where the stator device is a multi-phase stator device, where the phases are arranged side-by-side in a direction perpendicular to direction of motion of the moving device, and where each phase comprises a first stator core section having a set of teeth, a second stator core section having a set of teeth, and a coil, and where the teeth are arranged to protrude towards the moving device; and wherein at least two neighbouring phases share a stator core section, so that the first stator core section of a first phase and a second stator core section of a second phase is formed as a single unit.Type: ApplicationFiled: September 20, 2010Publication date: August 9, 2012Applicant: HÖGANÄS AB (Publ)Inventors: Glynn James Atkinson, Alan G. Jack, Barrie Mecrow
-
Publication number: 20070138876Abstract: An electrical machine is described, having a stationary main element as stator and a rotating main element as rotor, of which one main element having a magnetic yoke and poles, of a predefined number of poles, projecting radially from the former, is made of SMC material and carries a pole winding on each pole. To achieve cost-effective manufacturing of the main element, the main element is assembled from at least two modules that are axially adjacent, rigidly connected to one another, and produced from SMC material, each module having a yoke part, closed in on itself, of the magnetic yoke having an equal number of divisions of poles attached thereto in one piece, which corresponds to a fraction of the number of poles determined by the number of modules.Type: ApplicationFiled: February 20, 2004Publication date: June 21, 2007Applicant: ROBERT BOSCH GMBHInventors: Steven-Andrew Evans, Barrie Mecrow, Alan Jack
-
Patent number: 6849985Abstract: A stator or a rotor for an electrical machine comprises a plurality of circumferentially separated, radially extending teeth, wherein each tooth having a single winding and is provided with an axially and radially extending reluctance barrier to increase the reluctance of each tooth regarding propagation of a magnetic field not interacting with the winding of said tooth.Type: GrantFiled: December 13, 2000Date of Patent: February 1, 2005Assignee: Höganäs ABInventors: Alan G. Jack, Barrie Mecrow, Öystein Krogen
-
Patent number: 6815863Abstract: A stator (1) for an electrical induction machine comprises at least two stator sections (2, 3) at two different axial positions, each section having a plurality of circumferentially separated, radially extending teeth (6, 7) and each tooth having a single winding. The stator sections are mutually phase-shifted so as to reduce the effect of other harmonics than the working harmonics. In a stator having two separated stator sections, these are physically phase-shifted by 180° electrical±an angle related to skew, and then have their electrical supplies also shifted by 180° electrical.Type: GrantFiled: October 10, 2000Date of Patent: November 9, 2004Assignee: Höganäs ABInventors: Alan G. Jack, Barrie Mecrow, Öystein Krogen
-
Publication number: 20040212267Abstract: An essentially ring shaped core back for an electrical machine comprising a plurality of stacked, ring shaped sheets of soft magnetic material, a barrier of electrical resistance arranged between two adjacent sheets of soft magnetic material for reducing effects of eddy currents. At least each sheet of soft magnetic material in a subset of said plurality of stacked, ring shaped sheets of soft magnetic material includes a plurality of circumferentially arranged tooth openings that are extending axially through each sheet in said subset of said plurality of stacked, ring shaped sheets of soft magnetic material, additionally, each sheet of said subset of said plurality of stacked, ring shaped sheets of soft magnetic material includes a first inner closing portion and a second inner closing portion that are arranged between each tooth opening and an inner perimeter of said ring shaped sheet of soft magnetic material.Type: ApplicationFiled: April 14, 2004Publication date: October 28, 2004Applicant: Hoganas ABInventors: Alan Jack, Barrie Mecrow, Phillip George Dickinson, Mats Persson, Chris Manning
-
Publication number: 20030122442Abstract: A stator assembly for an alternating current generator. The stator core is a one-piece molded part that is formed of iron powder having a particle size in a range of about 10 to 250 microns. The powder is bound together by a thermoplastic material which covers the particles and which serves to insulate the particles from each other. The particles may be coated with phosphorus and the phosphorus layer overcoated with the thermoplastic material. A three-phase output stator winding is carried by the core and has conductor portions located in core slots.Type: ApplicationFiled: October 28, 2002Publication date: July 3, 2003Inventors: Alan G. Jack, Barrie Mecrow, Oystein Krogen
-
Patent number: 6472792Abstract: A stator core for an electrical machine includes an annular yoke and a plurality of teeth spaced circumferentially on the annular yoke and extending radially therefrom, the spaces between the teeth defining circumferentially spaced winding slots. The teeth are formed as separate components from a soft magnetic powder material. Each tooth has non-decreasing cross-sectional dimensions in a direction towards a distal tip along a length of the tooth corresponding to a winding slot, and has the same or smaller cross-sectional dimensions along a proximal end of the tooth. Thereby, the tooth may be assembled with a core-back section of the annular yoke and is able to receive a coil before the assembling with the yoke.Type: GrantFiled: March 5, 2001Date of Patent: October 29, 2002Assignee: Höganäs ABInventors: Alan G. Jack, Barrie Mecrow, John Terence Evans, James Stonehouse Burdess, John Neville Fawcett, Dawn Stephenson, Phillip George Dickinson
-
Patent number: 6300702Abstract: A stator assembly for an electrical machine comprises a core made of a magnetic material. The core has an annular yoke (2) and a plurality of teeth (3) spaced circumferentially on the annular yoke and extending radially therefrom. The spaces between the teeth define circumferentially spaced winding slots (6). A stator winding is carried by the stator core and has coil turns located around the teeth and in the winding slots. Each tooth and a radially adjoining part (4) of the yoke have varying axial dimensions in order to adjust the magnetic flux to an optimal flux density in each part of the magnetic flux path in the stator. The annular yoke (2) may extend axially past the teeth (3) at least at one of the axial sides thereof.Type: GrantFiled: September 18, 2000Date of Patent: October 9, 2001Assignee: Höganäs ABInventors: Alan G. Jack, Barrie Mecrow