Eccentric Patents (Class 74/570.1)
  • Patent number: 9234554
    Abstract: Various arrangements are disclosed based on springs formed from a plurality of individual resilient arms, including a spring having a substantially planar form in an unloaded state and rotational symmetry of at east order two about a symmetry axis perpendicular to the plane of the spring, the spring comprising: an inner hub and an outer hub, the inner hub being radially inward with respect to the outer hub; a plurality of resilient connecting arms each connected at an inner end to the inner hub and at an outer end to the outer hub, the plurality of resilient connecting arms being configured to provide a restoring force parallel to the symmetry axis when the inner and outer hubs are displaced relative to each other along the symmetry axis; wherein the inner hub, the outer hub and each of the plurality of resilient connecting arms are formed as physically separate elements and are connected to each other during assembly to form the spring.
    Type: Grant
    Filed: June 3, 2010
    Date of Patent: January 12, 2016
    Assignee: Isis Innovation Limited
    Inventors: Michael William Dadd, Paul Brian Bailey
  • Patent number: 9140125
    Abstract: An apparatus and method for connecting a fan rotor to a shaft of a gas turbine engine includes a segmented clinch nut plate having a plurality of clinch nuts installed in pre-drilled holes in each segment. A plurality of mounting bolts extending through the holes in the rotor shaft and holes in a mounting device of the shaft threadedly engage the clinch nuts of the clinch nut plate. The segments of the clinch nut plate are disposed separately one from another.
    Type: Grant
    Filed: February 2, 2012
    Date of Patent: September 22, 2015
    Assignee: PRATT & WHITNEY CANADA CORP.
    Inventors: Richard Ivakitch, Andreas Eleftheriou
  • Patent number: 9085846
    Abstract: A pulley comprising: a central hub; a peripheral crown; a first intermediate section comprising a plurality of radial ribs that radially extend from the hub, and a second intermediate section comprising a plurality of peripheral ribs that end into the peripheral crown and intermediate circular rib concentric with the center of the pulley and having a radius basically equal to half radius of the pulley, the circular intermediate rib separating the first intermediate section from the second intermediate section, the circular intermediate rib comprising connection points of radial ribs and of peripheral ribs, wherein the connection points of radial ribs are distant from those of the peripheral ribs; the peripheral ribs being suitably inclined mutually and with respect to the radial ribs in such way to intersect at least in one crossing point to form a web structure in the second intermediate section.
    Type: Grant
    Filed: September 13, 2011
    Date of Patent: July 21, 2015
    Assignee: MECCANICA GENERALE—S.R.L.
    Inventor: Walter Emilio Garlatti
  • Patent number: 9080638
    Abstract: An unbalanced shaft for compensating for inertial forces and/or mass moments of inertia of an internal combustion engine (1), having an unbalanced portion (8), the center of mass of which extends eccentric to the axis of rotation (11) of the unbalanced shaft (6) for generating the shaft imbalance (7), a bearing portion (9) adjacent to the unbalanced portion, and a bearing race (10) joined thereto, the outer surface (13) of which serves as a race for the rolling elements of a roller bearing rotationally supporting the unbalanced shaft, and the inner surface (12) of which retracts radially relative to the outer circumscribed circle (14) of the unbalanced portion in a bearing circumference region running in the direction of the imbalance.
    Type: Grant
    Filed: July 7, 2011
    Date of Patent: July 14, 2015
    Assignee: Schaeffler Technologies AG & Co. KG
    Inventors: Peter Solfrank, Tobias Mederer
  • Patent number: 9027438
    Abstract: An improved eccentric used in walking mechanism sub-assemblies used in heavy equipment, specifically drag line excavators. The walking assemblies include a power driven output shaft which engages and rotates an eccentric fitting journaled within a leg housing which is in turn pivotally secured to the walking assembly shoes and through a support linkage to the excavator frame imparting a modified elliptical travel path thereto. The improvement is directed to the eccentric which is of a multiple component fabrication for increased performance and use durability and extended life.
    Type: Grant
    Filed: April 16, 2012
    Date of Patent: May 12, 2015
    Assignee: Warfab Industries, Inc.
    Inventors: Maurice Wayne Thomas, James Alan Ehret
  • Patent number: 8803035
    Abstract: An equalizing mechanism of a welding apparatus connects an apparatus body and a fixed bracket, and includes a fixed member on the fixed bracket, and a pressure shaft on an apparatus body close to a bottom face of the fixed member. A cutout is at a position facing the fixed member A movable member on the apparatus body accommodates the fixed member. A restrictive member located by side faces of the fixed member and the movable member restricts relative movement thereof to a direction parallel to the pressure shaft. A driven lever is supported by a front portion of the fixed member to abut on an inner front face of the movable member at one end and abut on the pressure shaft at an other end. A spring between a back portion of the fixed member and an inner back face of the movable member presses the two members to move away from each other.
    Type: Grant
    Filed: June 21, 2011
    Date of Patent: August 12, 2014
    Assignee: Obara Group Incorporated
    Inventors: Yoshio Sato, Arinobu Mori, Shinichi Kurihara, Kenji Hayafuji, Tsuneaki Sudo
  • Publication number: 20140060240
    Abstract: A combination hub, counterweight and crank arm for a governor assembly in a ram air turbine is a single piece steel body.
    Type: Application
    Filed: August 30, 2012
    Publication date: March 6, 2014
    Applicant: HANILTON SUNDSTRAND CORPORATION
    Inventors: Conor Riordan, David G. Bannon
  • Patent number: 8561498
    Abstract: An eccentric bottom bracket for a bicycle. The eccentric bottom bracket includes opposing first and second members. The first member and the second member each include a body and a flange. Each body is sized and shaped to penetrate an opening of a bottom bracket shell of a bicycle. Each flange is sized and shaped to prevent complete admittance of the member into the bottom bracket shell. Each body also has a bearing guide with an axis that is parallel to but offset from a center axis of the bottom bracket shell when that body is fit into the bottom bracket shell. The eccentric bottom bracket also includes a tightening assembly for selectively applying a compressive force between the body of the first member and the body of the second member. The compressive force secures the first member and the second member to the bottom bracket shell.
    Type: Grant
    Filed: February 12, 2008
    Date of Patent: October 22, 2013
    Assignee: Niner, Inc.
    Inventor: Steve Domahidy
  • Patent number: 8418493
    Abstract: A high-durability cam wheel assembly mounted in a shell of a refrigerant recovery machine is disclosed to include an open frame member, rigid wear strips mounted in the open frame member at two sides, a sliding block having friction cylinders arranged in parallel at two opposite sides and respectively disposed in contact with the rigid wear strips and a cam wheel set formed of a first cam wheel and a second cam wheel and inserted through an axle bearing in sliding block for causing the sliding block to move back and forth in the open frame member.
    Type: Grant
    Filed: October 5, 2009
    Date of Patent: April 16, 2013
    Assignee: Sun-Wonder Industrial Co., Ltd.
    Inventor: An-Chao Chang
  • Patent number: 8375826
    Abstract: A rotary element and a rotary element balancing system of a combine harvester. The rotary element includes a rotary member that rotates during operation and one or more blade mount assemblies. The rotary element also includes one or more auto-balance assemblies mounted to the rotary member to compensate for a mass offset on the rotary element due to the one or more blade mount assemblies being dislodged or broken. The one or more auto-balance assemblies include one or more tracks and one or more spheres located inside the one or more tracks and in contact with first and second bearing race edges. Loads are transferred from at least one of the first bearing race edge and the second bearing race edge, when the rotary member rotates, to the one or more spheres that self-align within the track to compensate for the mass offset on the rotary element.
    Type: Grant
    Filed: December 15, 2011
    Date of Patent: February 19, 2013
    Assignee: CNH America LLC
    Inventors: Herb M. Farley, Kevin W. Ward, Nathan E. Isaac
  • Patent number: 8057346
    Abstract: An automatic stepless transmission includes a driving shaft, a driving disk rotatable by the driving shaft, and a clutch assembly rotatable by the driving disk. Two parallel guiding slots are provided on the driving shaft. An eccentric plate with a notch is sleeved onto the driving shaft. A compressible resilient regulation mechanism is disposed between the notch and the driving shaft. The driving disk is installed on the eccentric plate via a bearing. The eccentric plate offsets in relation to the axis of the driving shaft, and at the same time the eccentric plate drives the driving disk offset. The automatic stepless transmission can compress or release the resilient regulation mechanism according to loads. The eccentricity between the eccentric plate and the driving shaft can therefore be adjusted, and the eccentric plate can drive the driving disk to move. Thus, the eccentricity of the driving disk can be regulated without manual work. The transmission has a simple structure and can be operated easily.
    Type: Grant
    Filed: July 3, 2006
    Date of Patent: November 15, 2011
    Inventor: Haiping Liu
  • Publication number: 20110023653
    Abstract: The invention comprises a non-rotating shaft for supporting a mechanical element of a roll segment in a continuous casting machine, having an essentially circular cross-section. The circular cross-section presents a portion having a smooth peripheral, wherein the distance between any point of the portion and a center of the circular cross-section is shorter than a radius of the circular cross-section. Furthermore, the circular cross-section presenting the portion extends axially, which defines a section of the shaft meant to a least partly receive the mechanical element, and the section of the shaft is meant to receive a load at least partly at the portion. In addition, according to a second aspect, the invention comprises a segment roll for a continuous casting machine, which comprises the non-rotating shaft according to the first aspect.
    Type: Application
    Filed: November 30, 2006
    Publication date: February 3, 2011
    Inventors: Magnus Axelsson, Patrik Costa
  • Patent number: 7770479
    Abstract: A vest for a human body has an air core coupled to a pulsator operable to subject the vest to pulses of air which applies and releases high frequency pressure forces to the body. The pulsator has two diaphragms connected to a brushless electric dc motor with rotary to reciprocating linear motion transmitting mechanisms comprising scotch yokes having anti-lash assemblies operable to generate air pulses in an air pulsing chamber. The diaphragms also increase the pressure in a manifold chamber. A check valve connects the manifold chamber with a pulsing chamber to allow pressurized air to flow from the manifold chamber into the pulsing chamber. An air flow control valve in communication with the manifold chamber is used to adjust the pressure of the air in the manifold and pulsing chambers. A programmable motor controller adjusts the duration of operation and speed of the motor to vary the operational time and frequency of the air pulses.
    Type: Grant
    Filed: October 25, 2007
    Date of Patent: August 10, 2010
    Assignee: Electromed, Inc.
    Inventors: Craig N. Hansen, Paul C. Cross, Lonnie J. Helgeson
  • Publication number: 20100058888
    Abstract: A drive shaft includes at least two coaxial hollow shafts spaced apart in the direction of the rotational axis of the drive shaft, and each of the hollow shafts has an inner opening. At least one function unit, which includes at least one function part disposed, with reference to the direction of the rotational axis of the drive shaft, between a first and a second of the hollow shafts and first and second engagement sections extending in the direction of the rotational axis of the drive shaft, of which the first engagement section is disposed in the inner opening of the first hollow shaft and of which the second engagement section is disposed in the inner opening of the second hollow shaft. The engagement sections of the function unit are pressed into the inner openings of the hollow shafts with the formation of a particular press fit and the first and second hollow shafts are rigidly connected with one another via the function unit.
    Type: Application
    Filed: October 16, 2009
    Publication date: March 11, 2010
    Inventors: Oskar Mueller, Peter Meusburger
  • Publication number: 20090199677
    Abstract: An eccentric bottom bracket for a bicycle. The eccentric bottom bracket includes opposing first and second members. The first member and the second member each include a body and a flange. Each body is sized and shaped to penetrate an opening of a bottom bracket shell of a bicycle. Each flange is sized and shaped to prevent complete admittance of the member into the bottom bracket shell. Each body also has a bearing guide with an axis that is parallel to but offset from a center axis of the bottom bracket shell when that body is fit into the bottom bracket shell. The eccentric bottom bracket also includes a tightening assembly for selectively applying a compressive force between the body of the first member and the body of the second member. The compressive force secures the first member and the second member to the bottom bracket shell.
    Type: Application
    Filed: February 12, 2008
    Publication date: August 13, 2009
    Applicant: NINER, INC.
    Inventor: Steve Domahidy
  • Patent number: 7497175
    Abstract: An adjustment mechanism for setting the position of a singulator in a seed meter. The singulator comprises an arm pivotally mounted about a pivot adjacent a seed disk. A shaft with an eccentric connection to a radially outward portion of the arm has a lever pivotally connected on it. The lever has a cam mechanism to displace an actuating sleeve into a resilient sleeve to lock the shaft in a given position when the lever is extending in the direction of the axis of rotation of the shaft. When the lever is moved to a right angle orientation the shaft is free to pivot and thus set the position of the arm.
    Type: Grant
    Filed: October 31, 2006
    Date of Patent: March 3, 2009
    Assignee: Deere & Company
    Inventors: Michael Eric Friestad, Nathan Albert Mariman
  • Publication number: 20080173129
    Abstract: A crankshaft is to be provided that allows its assembly process to be simplified, work hours required for the assembly process to be shortened and a manufacturing cost to be reduced. The crankshaft is provided with first eccentric section and second eccentric section at respective ends while interposing a shaft section therebetween and has such a shape that a peripheral edge of the first eccentric section and/or the second eccentric section is positioned radially inside of a peripheral edge of the shaft section.
    Type: Application
    Filed: January 16, 2008
    Publication date: July 24, 2008
    Applicant: MITSUBISHI HEAVY INDUSTRIES, LTD.
    Inventors: Hajime Sato, Yoshiyuki Kimata
  • Publication number: 20080080993
    Abstract: A hermetic compressor with a connecting rod that can be assembled with a crankshaft and a piston while the piston is in a cylinder integrally formed with a frame. The hermetic compressor includes the frame formed with a hollow portion, a drive unit disposed on the frame, a cylinder integrally formed with the frame, the piston disposed within the cylinder, a crankshaft, and a connecting rod. The piston linearly reciprocates within the cylinder. The crankshaft has a main shaft portion adapted to rotate by a drive force of the drive unit, an eccentric shaft portion provided at one end of the main shaft portion, and a weight balance portion provided between the main shaft portion and the eccentric shaft portion. The main shaft portion is rotatably supported in the hollow portion. The eccentric shaft portion is positioned eccentrically relative to the main shaft portion. The weight portion is adapted to compensate for a rotating imbalance caused by the eccentric shaft portion.
    Type: Application
    Filed: July 18, 2007
    Publication date: April 3, 2008
    Inventor: Rio Ryu
  • Patent number: 7273362
    Abstract: A scroll compressor assembly includes a shaft having an eccentric pin that orbits a first scroll member relative to a second scroll member. The eccentric pin has a length extending from a base end to a distal end, which defines a contact area having a slight crown that engages a slider block. The contact area is moved toward the distal end of the eccentric pin to improve the stability of at least one of the first and second scroll members.
    Type: Grant
    Filed: July 6, 2005
    Date of Patent: September 25, 2007
    Assignee: Scroll Technologies
    Inventors: Tapesh P. Patel, Zili Sun, Thomas R. Barito
  • Patent number: 7063522
    Abstract: A scroll compressor has an eccentric pin that extends forwardly of a rotating shaft. The eccentric pin generally has a curved outer portion and a flat outer portion. Each of the flat and curved outer portions have fillets that are formed to merge the eccentric pin portions into an end surface or shoulder on the shaft. The fillets are formed to have a relatively complex shape with more than a single radius of curvature. In one embodiment, there are two radii of curvature, with a greater radius of curvature formed to extend from an outer periphery of the eccentric pin, and merge into a second portion having the lesser radius of curvature that merges from the first portion downwardly into the shoulder. In a second embodiment, the fillet generally has the shape of one quarter of an ellipse.
    Type: Grant
    Filed: December 13, 2004
    Date of Patent: June 20, 2006
    Assignee: Scroll Technologies
    Inventor: Zili Sun