Patents Examined by E. B.
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Patent number: 11863021Abstract: A hermetic compressor includes an electric motor that includes a rotor having a plurality of permanent magnets inserted into a rotor core, a connection part made of a non-magnetic material and provided at an axial end portion of the rotor core, and an inertial core made of a magnetic material and provided at an axial end of the connection part. The connection part includes a plurality of first fixing portions, a plurality of second fixing portions spaced apart from the plurality of first fixing portions in an axial direction, and a plurality of link portions disposed between the plurality of first fixing portions and the plurality of second fixing portions.Type: GrantFiled: November 12, 2021Date of Patent: January 2, 2024Assignee: LG Electronics Inc.Inventors: Inbum Park, Bokann Park, Chisung Park, Donghyun Lee
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Patent number: 11855491Abstract: The present invention may provide a motor including a rotor and a stator disposed to correspond to the rotor, wherein the rotor includes a rotor core and a magnet disposed on the rotor core, a tooth of the stator includes a first surface facing the magnet, the magnet includes a second surface in contact with the rotor core and a third surface which is spaced apart from the second surface and faces the first surface, the third surface includes a flat surface, and a first length which is a shortest distance of the flat surface is in the range of 46% to 50% of a second length of a shortest distance of the first surface.Type: GrantFiled: August 26, 2020Date of Patent: December 26, 2023Assignee: LG INNOTEK CO., LTD.Inventors: Jin Su Pyeon, Tae Ho Kim
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Patent number: 11817746Abstract: The present invention relates to a rotor of motor, and more particularly, to a 2-segment quasi-Halbach rotor of motor that includes a radial magnet and a circumferential magnet which are Halbach-arrayed and a back iron providing a flux to reduce a thickness of the magnet and acquire high air-gap flux density.Type: GrantFiled: November 22, 2021Date of Patent: November 14, 2023Assignees: POSTECH RESEARCH AND BUSINESS DEVELOPMENT FOUNDATION, KNR SYSTEM, INC., EPT CO., INC.Inventors: Kwang Hee Nam, Jae Hak Kim, Sang Moo Lee, Myoung Han Kim, Bon Kil Koo
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Patent number: 11784522Abstract: A rotor includes: a shaft; a tubular rotor core; and a plurality of magnets. The shaft extends along a center axis. The rotor core surrounds the shaft. The plurality of magnets is disposed outside the rotor core in a radial direction and is aligned in a circumferential direction. A plurality of first recessed portions recessed outward in the radial direction is aligned in the circumferential direction in an inner surface of the rotor core in the radial direction. Each of the first recessed portions overlaps each of the magnets in the radial direction.Type: GrantFiled: February 7, 2022Date of Patent: October 10, 2023Assignee: NIDEC CORPORATIONInventors: Tomoya Ueda, Toshiyuki Sasaki, Yabo Hu
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Patent number: 11784547Abstract: The rotor with a non-through shaft for a rotary electric machine comprises a cylindrical magnetic body clamped between two half-shafts, each comprising an attachment flange connected to the magnetic body, axial housings being uniformly provided in the magnetic body on at least one diameter of the magnetic body in order to house conductive bars. At least one attachment flange comprises insertion holes, each arranged facing a housing for inserting the conductive bars into the housings and the exterior diameter of the attachment flange is substantially equal to the exterior diameter of the magnetic body, the attachment flange comprising as many insertion holes as housings.Type: GrantFiled: December 12, 2019Date of Patent: October 10, 2023Assignee: GE Energy Power Conversion Technology LimitedInventor: Christophe Galmiche
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Patent number: 11777375Abstract: A handpiece for a handheld surgical instrument having a motor and a heatsink is provided. The motor is within a motor housing and the heat sink is disposed around and thermally coupled with the motor housing. The handpiece is formed from a material having a first thermal conductivity and the heat sink has a second thermal conductivity that is greater in value than the first thermal conductivity of the material of the handpiece. The heat sink is configured to dissipate heat from the motor during operation of the motor to the handpiece.Type: GrantFiled: August 27, 2020Date of Patent: October 3, 2023Assignee: Gyrus ACMI, Inc.Inventor: Joey Magno
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Patent number: 11770037Abstract: A motor includes a rotor configured to rotate with a shaft. The rotor includes a plurality of yoke portions and a plurality of holding portions each corresponding to a space portion provided between the adjacent yoke portions and configured to hold therein a magnet. At least one of the plurality of yoke portions includes a tab portion extending towards the holding portion and configured to hold the magnet held in the holding portion. The holding portion includes an insertion space provided between a first end portion of the yoke portion in an axial direction of the shaft and the tab portion. The insertion space allows the magnet to be inserted into the insertion space towards an inner side in a radial direction of the shaft.Type: GrantFiled: March 12, 2021Date of Patent: September 26, 2023Assignee: AISIN CORPORATIONInventors: Hiroaki Yui, Hiroki Ume, Hideaki Kato, Takahiro Sonoda
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Patent number: 11757322Abstract: The disclosure relates to winding arrangements for electrical machine stators. Example embodiments include a coil for a tooth element of an electrical machine stator, the coil formed from a plurality of hairpin wires having pairs of legs passing through first and second slots on opposing radial faces of the tooth element, the coil having n full turns passing around the tooth element, the first and second slots each having 2n+2 slot positions having a depth d? for accommodating a single hairpin wire, the slots each having a first slot position at a first common end and a 2n+2th slot position at a second opposing end, the coil having first and second terminal connections connected to hairpin wires extending through the first and second slots at respective first and second slot positions.Type: GrantFiled: November 20, 2020Date of Patent: September 12, 2023Assignee: ROLLS-ROYCE plcInventor: Vladimir A. Shirokov
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Patent number: 11757315Abstract: A rotor applied to an inner rotor brushless motor includes: a rotor core having a laminate of a plurality of annular thin plate-shaped core pieces, the rotor core being configured to rotate together with a shaft in an integrated manner; a cylindrical resin magnet mounted on an outer peripheral surface of the rotor core via a gap; a groove-shaped adhesive admission portion in a straight line along the entire length of the rotor core in an axial direction thereof, the adhesive admission portion being recessed into the outer peripheral surface of the rotor core; and an adhesive configured to bond and fix the rotor core and the magnet. The adhesive is filled in an entire adhesive allowance having both of the gap and the adhesive admission portion between the outer peripheral surface of the rotor core and an inner peripheral surface of the magnet.Type: GrantFiled: August 27, 2021Date of Patent: September 12, 2023Assignee: MABUCHI MOTOR CO., LTD.Inventors: Kenji Shiraki, Katsuhito Nishizawa, Shou Kubota, Yuhei Ito
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Patent number: 7727248Abstract: A surgical clip has a base portion and two generally parallel, spaced arms extending from the base portion and defining an opening therebetween. The arms terminate distally in fingers which are of reduced width and thickness relative to the arms and which are adapted to be bent towards and past each other. A transition section from each arm to the finger provides curved structures which extending away from each other and providing a wider mouth for the opening between the arms. The arms also have a proximal section with an undercut which helps in flexure of the arms. The base is an extended structure having a rounded proximal end with outwardly extending shoulders which are arranged to be engaged by the curved structures of the mouth of another clip.Type: GrantFiled: June 14, 2004Date of Patent: June 1, 2010Assignee: Ethicon Endo-Surgery, Inc.Inventors: Kevin W. Smith, Jose Luis Francese, Robert Sixto, Jr., Juergen A. Kortenbach, Thomas O. Bales, Carlos Rivera, Matthew A. Palmer
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Patent number: 4941112Abstract: A method and a device are disclosed for measuring the lithium concentration in the primary cooling circuit of a nuclear power station reactor. The lithium concentration Li.sup.+ is determined by linear correlation between the electrical conductivity .lambda. of the cooling water measured by measuring means 1, at a given temperature t measured by measuring means 2. Means 4 to measure the boron concentration B make it possible, by means of the computing means 3 to determine the lithium concentration Li.sup.+ according to the decreasing lithium hydroxide specification. The invention can be applied to the maintaining and regulation of the pH of the cooling water of a nuclear power station reactor at a determined value.Type: GrantFiled: May 31, 1988Date of Patent: July 10, 1990Assignee: Electricite de France (National Service)Inventors: Christian Nepveu de Villemarceau, Jean-Luc Pereira, Jean-Pierre Blin, Anne-Marie Arzel, Didier Livigni
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Patent number: 4880802Abstract: For treatment of disorders of the central nervous system, the cardiovascular system or the intestinal tract, the new substituted basic 2-aminotetralins of the formula ##STR1## in which R.sup.1 represents hydrogen or alkyl,R.sup.2 represents hydrogen, alkyl or acyl, andR.sup.3 represents quinuclidine or a group of the formula --(CH.sub.2).sub.a --R.sup.4, --CH.sub.2 --CH.dbd.CH--(CH.sub.2).sub.b --R.sup.4, --CH.sub.2 --C.tbd.(CH.sub.2).sub.b --R.sup.4, ##STR2## wherein a denotes a number from 1 to 10,b denotes a number 0, 1, 2, 3 or 4,d denotes a number 2 or 3, andX denotes oxygen, sulphur, or NR.sup.5,and their salts.Type: GrantFiled: December 8, 1987Date of Patent: November 14, 1989Assignee: Bayer AktiengesellschaftInventors: Rudolf Schohe, Thomas Glaser, Jorg Traber, George S. Allen
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Patent number: 4876270Abstract: Novel substituted .alpha.,.alpha.-diphenylethylene derivatives of formula I ##STR1## in which R.sub.1 and R.sub.4 independently of one another each represents hydrogen, hydroxy, C.sub.1 -C.sub.5 -alkyl, C.sub.1 -C.sub.8 -alkoxy, C.sub.1 -C.sub.3 -alkoxy substituted by from 1 to 7 halogen atoms, alkoxyalkoxy having a total of from 2 to 6 carbon atoms, C.sub.3 -C.sub.5 -alkenyloxy or C.sub.3 -C.sub.5 -alkynyloxy;R.sub.2 and R.sub.3 independently of one another each represents hydrogen, halogen, C.sub.1 -C.sub.3 -alkyl, C.sub.1 -C.sub.5 -alkoxy or nitro; orR.sub.1 and R.sub.2 together represent a radical --O--CH.sub.2 --O-- or --O--CH.sub.2 --CH.sub.2 --O--;R.sub.5 and R.sub.6 independently of one another each represents hydrogen, halogen or methyl;R.sub.7 and R.sub.Type: GrantFiled: February 10, 1988Date of Patent: October 24, 1989Assignee: Ciba-Geigy CorporationInventor: Hans-Rudolf Waespe
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Patent number: 4876271Abstract: Novel substituted thieno[3,2-b]thiophene-2-sulfonamides are prepared by novel synthetic processes. These compounds are useful for the treatment of elevated intraocular pressure in compositions including ophthalmic drops and inserts.Type: GrantFiled: December 20, 1988Date of Patent: October 24, 1989Assignee: Merck & Co., Inc.Inventors: George D. Hartman, John D. Prugh
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Patent number: 4874876Abstract: The present invention provides a process for the preparation of 2-(2-thienyl)-ethylamine and derivatives thereof having the general formula: ##STR1## wherein R.sub.1 and R.sub.2 are hydrogen or taken together form a phenyl ring.Type: GrantFiled: November 2, 1988Date of Patent: October 17, 1989Assignee: Occidental Chemical CorporationInventors: Neil J. O'Reilly, Henry C. Lin
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Patent number: 4873241Abstract: 2-Amino-N-(2-phenylindan-2-yl)acetamides of the following formula are provided ##STR1## wherein, a=0 to 3,R.sub.1, R.sub.2 and R.sub.3 are independently selected from hydrogen and methyl,R.sub.4 is hydrogen or C.sub.1 -C.sub.4 alkyl,R.sub.5 is selected from hydrogen, C.sub.1 -C.sub.4 alkyl, cyclopropyl and (aminomethyl)carbonyl, orR.sub.4 and R.sub.5 taken together with the nitrogen atom to which they are attached from a heterocyclic ring selected from pyrrolidinyl, piperidinyl and morpholinyl, orR.sub.3 and R.sub.4 taken together with the carbon atom and nitrogen atom to which they are respectively attached form a heterocyclic ring selected from pyrrolidinyl and piperidinyl, andR.sub.6 is selected from hydrogen, halogen, C.sub.1 -C.sub.4 alkoxy, trifluoromethyl, C.sub.1 -C.sub.4 alkyl and combinations thereof.The compounds have antiepileptic or antihypoxia activity.Type: GrantFiled: October 31, 1988Date of Patent: October 10, 1989Assignee: Fisons CorporationInventors: James J. Napier, Ronald C. Griffith
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Patent number: 4871855Abstract: An osmium-catalyzed method of addition to an olefin. In the method of asymmetric dihydroxylation of the present invention, an olefin, a chiral ligand, an organic solvent, water, and aamine oxide and an osmium-containing compound are combined. In the method of asymmetric oxyamination of the present invention, an olefin, a chiral ligand, an organic solvent, water, an amine derivative and an osmium-containing compound are combined. In the method of asymmetric diamination of the present invention, an olefin, a chiral ligand, an organic solvent, a metallo-chloramine derivative or an amine derivative and an osmium-containing compound are combined. In one embodiment, an olefin, a chiral ligand which is a dihydroquinidine derivative or a dihydroquinine derivative, acetone, water, N-methyl morpholine N-oxide and osmium tetroxide are combined to effect asymmetric dihydroxylation of the olefin.Type: GrantFiled: February 23, 1988Date of Patent: October 3, 1989Assignee: Massachusetts Institute of TechnologyInventors: Istvan E. Marko, K. Barry Sharpless
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Patent number: 4870098Abstract: This invention encompasses compounds of Formula I ##STR1## and the pharmaceutically acceptable salts and geometrical and optical isomers thereof wherein:Alk is alkylene or hydroxyalkylene containing 1-6 carbon atoms;Ar is 5,6,7,8-tetrahydro-1-naphthalenyl or phenyl optionally substituted with one or more substituents selected from lower alkyl containing 1 to 6 carbon atoms, hydroxy, lower alkoxy containing 1 to 6 carbon atoms, or lower alkanoyl containing 1 to 6 carbon atoms;R is hydrogen and lower alkyl containing 1 to 6 carbon atoms;X, Y, and Z are each independently O or S with S optionally oxidized to S.dbd.O;m is an integer from 0 to 3;n is an integer from 0 to 5.The compounds are useful as anti-allergy agents and anti-inflammatory agents.Type: GrantFiled: January 17, 1989Date of Patent: September 26, 1989Assignee: G. D. Searle & Co.Inventors: Michael A. Stealey, Richard M. Weier
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Patent number: 4837708Abstract: The present invention relates to a process and system for continuously monitoring and calculating the flow rate of a fluid medium in a flow line. The system includes a camera for viewing and capturing an image of a chart having different colored trace lines representing manometric pressure upstream of an orifice in a plate in the flow line and differential pressure across the orifice plate, a color filter for creating a modified image of the chart, an electronic digitizer for digitizing the images, and a microprocessor for determining the fluid flow rate from the captured and/or modified images. The system also includes monitors for displaying any of the iamges and manually operated devices for editing the images and for providing the microprocessor with instructions.Type: GrantFiled: July 1, 1987Date of Patent: June 6, 1989Assignee: Maraven, S.A.Inventor: Terence Wright