Eccentric Patents (Class 384/255)
  • Patent number: 5649844
    Abstract: A drive system for a boat having a hull with an inboard motor and two spaced drive units mounted in the hull, including a dual drive package having a housing with first and second output shafts mounted in bearings in the housing and an input shaft mounted in bearings in the housing between the output shafts, first and second drive chain sprockets mounted on and spaced axially along the input shaft, a third drive chain sprocket mounted on the first output shaft, a fourth drive chain sprocket mounted on the second output shaft, a first drive chain coupling the first and third sprockets, a second drive chain coupling the second and fourth sprockets, and arrangements for connecting the input shaft to the motor and each of the output shafts to a respective drive unit. The drive system may further include first and second torque limiters for connecting between the respective drive units.
    Type: Grant
    Filed: January 22, 1996
    Date of Patent: July 22, 1997
    Assignee: Hydra Drive System, Inc.
    Inventors: Philip C. Caricof, Neil A. Newman, Warren H. Robbins, Lawrence C. Smith
  • Patent number: 5477591
    Abstract: A bearing device for use in textile drafting roller pairs for supporting the top roller of a drafting roller pair. The bearing device finds particular use with magnetic drafting rollers, but can be used with other types of roller configurations. The bearing device allows for the top roller to be selectively positioned with respect to the bottom roller in order to allow removal of the top roller and to prevent deformation of cots or aprons provided thereon during machine stoppage. A rotating debris excluding interface is also provided through interaction of the bearing device and the end of a roller. Handles are attached to the bearing device for allowing extraction of the top roller from a roller pair, and ribs may be provided on the bearing device or receptacle therefor to facilitate piecing up of a broken yarn. Related methods of use of the bearing device are also disclosed.
    Type: Grant
    Filed: November 23, 1994
    Date of Patent: December 26, 1995
    Assignee: Hollingsworth Saco Lowell, Inc.
    Inventor: Ricardo Morell
  • Patent number: 5426988
    Abstract: A device for reciprocating a plunger according to the present invention comprises: an electric motor; a drive shaft rotated by the electric motor; an inner race fixedly mounted on the drive shaft, the inner race having an inner race track which is formed on the outer cylindrical surface of the inner race in such a manner that the inner trace track is not coaxial with the inner cylindrical surface of the inner race and the drive shaft; an outer race provided around the inner race, the outer race having an outer race track which is coaxial with the inner race track; a plurality of rolling members provided between the outer race track and the inner race track; and a plunger member movably supported in an axial direction thereof, one end of the plunger member being elastically abutted against the outer cylindrical surface of the outer race. According to the present invention, it is possible to make a manufacturing cost lower, to make the whole of the device smaller in weight, and to make a quality higher.
    Type: Grant
    Filed: January 14, 1993
    Date of Patent: June 27, 1995
    Assignee: NSK Ltd.
    Inventors: Toshihisa Ohata, Takayuki Yatabe
  • Patent number: 5419640
    Abstract: An adjustable support for journals and hinge pins, especially for use with doors and gates. A rotary member (14) including an eccentrically positioned receiving bore (16) to take up a journal or hinge pin is supported so as to be rotatably adjustable in a bearing bore (12) of a bearing block (10). A setscrew (22) extending transversely of the bearing bore (12), passing through the same, is held for rotation in the bearing block (10) but fixed against axial displacement. The setscrew (22) touches the rotary member (14) such that a toothing of the type of a worm gear forms in the rotary member (14) as the setscrew (22) is turned.
    Type: Grant
    Filed: January 28, 1994
    Date of Patent: May 30, 1995
    Inventor: Erich Doring
  • Patent number: 5368399
    Abstract: An adjustable roller bearing assembly adapted for use in a machine tool includes an elongated support bolt that rotatably supports a radially extending roller bearing, and a bushing adapted to be positioned within a bore of a support member and to which the bolt member can be threadably secured. The bushing includes an outer cylindrical portion adapted to be snugly received within a bore of a support member and a cylindrical through hole through which the bolt extends. The outer cylindrical surface of the bushing is eccentric with respect to a central longitudinal axis of the bushing so that the roller bearing and its associated support bolt can be radially adjusted relative to the support member by rotation of the bushing within the bore. The bushing is a one piece integrated sleeve, flange and threaded connector so that only the support bolt and bushing are needed to both clamp the bearing on the support and radially adjust the bearing position relative to the support.
    Type: Grant
    Filed: October 20, 1993
    Date of Patent: November 29, 1994
    Assignee: Tri Tool Inc.
    Inventor: Clement Tremblay
  • Patent number: 5259677
    Abstract: A bearing assembly is mounted on an eccentric sleeve having a bore for receiving a rotatable shaft. After the bearing assembly is mounted on the eccentric sleeve, a counterweight lobe is mounted on the eccentric sleeve, abutting the bearing assembly, to control dynamic balance of the bearing and sleeve assembly and to restrain movement of the bearing assembly along the axis of the bore. The eccentric sleeve and counterweight lobe are keyed together to prevent relative rotation therebetween.
    Type: Grant
    Filed: October 26, 1992
    Date of Patent: November 9, 1993
    Assignee: The Torrington Company
    Inventors: David A. Degrange, Philip J. Draper, Steven C. Santelman, Richard F. Murphy
  • Patent number: 5172983
    Abstract: A connecting rod crankshaft bearing, provided for installation in the connecting rod at the crankshaft end, eliminates the necessity for reaming out the ridge in a cylinder during rebuilding. The rod bearing is an eccentric bearing, provided as two semi-circular sections having a slightly greater thickness along the lower section than on the upper section so as to offset the center of the inner surface from the outer surface of the bearing.This offset restricts the uptravel of the connecting rod. This in turn lowers the position of the piston during reciprocating travel by the same amount, eliminating possible impact with wear ridges within the cylinder. The cylinder thus need not be reamed to remove these ridges, as they no longer present a source of damaging impact during piston travel.
    Type: Grant
    Filed: February 6, 1991
    Date of Patent: December 22, 1992
    Inventor: Anderson Landrum
  • Patent number: 5156414
    Abstract: Device for adjusting the geometry of a vehicle wheel (14) consisting of a hub-holder (40) designed to accommodate the wheel (14) during rotation, the hub-holder (40) being fixed to the vehicle by means of at least one suspension element (18, 38) which is free to pivot in relation to the vehicle. According to said invention, the suspension element (18, 38) is fixed to the vehicle by means of at least one eccentric (32) which can be rotated in order to vary the angle between the suspension element (18, 38) and the vehicle.
    Type: Grant
    Filed: December 6, 1990
    Date of Patent: October 20, 1992
    Assignee: Elf France
    Inventors: Jean C. Fayard, Charles Timoney
  • Patent number: 5112145
    Abstract: A prefinished piston pin insert bearing wherein the radial clearances required for acceptable bearing function are maintained in spite of the tolerance required for assembly through a combination of inner bearing surface geometry and related structure for retaining the bearing against axial and rotational movement. The interior bearing geometry is formed of radii equal to that of the piston pin which are offset vertically into the upper and lower bearings to generate a load bearing surface thereon and of radii offset horizontally and of sufficient length to provide assembly clearance for the piston pin and a load bearing surface of approximately 120.degree. to 150.degree.. The bearings are retained against movement through connections with the piston head, the piston skirt, and between the various bearing pieces. Means are also provided for feeding oil under pressure to the piston pin and bearing interface for lubrication and to the piston assembly for cooling.
    Type: Grant
    Filed: June 11, 1991
    Date of Patent: May 12, 1992
    Assignee: Detroit Diesel Corporation
    Inventor: James W. MacGregor
  • Patent number: 5107155
    Abstract: A small dc vibrator motor for use in a wireless alerting device includes a housing, a non-rotatable shaft fixed to the housing, a cylindrical magnet fixedly mounted on the shaft, and a rotor which is rotatably mounted on the shaft. The rotor includes a cylindrical coreless winding assembly between the magnet and the housing, and eccentric bearings, or combinations of concentric bearings and eccentric weights, on both ends of the winding assembly. The eccentric bearings, or the combinations of concentric bearings and eccentric weights, cause vibrations when the rotor rotates.
    Type: Grant
    Filed: June 5, 1991
    Date of Patent: April 21, 1992
    Assignee: Tokyo Parts Industrial Co., Ltd.
    Inventor: Tadao Yamaguchi
  • Patent number: 5097718
    Abstract: An intermittent driving apparatus having input and output shafts disposed in perpendicular but nonintersecting relationship, and joined together by an intermittent drive coupling for transmitting rotation of the input shaft intermittently to the output shaft. The input shaft extends through an eccentric opening formed on a ring which is disposed within an opening formed in the housing. The ring can be angularly adjusted relative to the housing to vary the position of the axis of the input shaft. The ring is fixed to the housing by a securing pin, and a ring-shaped cover is press-fit into the angular gap between the ring and the housing.
    Type: Grant
    Filed: September 12, 1990
    Date of Patent: March 24, 1992
    Assignee: Tsubakimoto Chain Co.
    Inventor: Shinsuke Sahara
  • Patent number: 4998829
    Abstract: A sideframe (12) of a printing press has a slot (18) having opposed elongate grooves (30, 32) receiving an adjustable gib (14) and a fixed gib (16) respectively for receiving a rotary die journal bearing block (10) therebetween in sliding movement. The adjustable gib has a stem (38) received within the associated side groove (30) and attached by adjustment fasteners (40), each of which includes an eccentric portion (42) received with an associated stem opening (48) to move adjustable gib relative to fixed gib which has a stem (56) received within the associated side groove (32) and attached by fasteners (58), to vary the width of the slot. The adjustable gib includes an elongate groove (54) which receives a bearing block key (86) said key being attached to said bearing block by an adjustment fastener (74) to permit lateral adjustment of said bearing block relative to said sideframe.
    Type: Grant
    Filed: October 24, 1988
    Date of Patent: March 12, 1991
    Assignee: Allied Gear and Machine Co., Inc.
    Inventor: Larry J. Greer
  • Patent number: 4972110
    Abstract: The centrifuge has a drive rotating a rotor whose position relative to the vertical axis of the centrifuge is monitored by an unbalance sensor located on the installation plate which is accommodated in a recess of the ring in a plane perpendicular to the vertical axis. The ring is installed on the mounting surface of the drive casing with a provision for being moved and set relative to said surface so that the plane of the ring is constantly parallel with the lower surface of the rotor. The installation plate has a hollow for accommodating the unbalance sensor, the shape of the surface of said hollow being mutually complementary with the shape of the mounting surface of the drive casing and the installation plate is located in said ring with a provision for moving in said plane perpendicular to the vertical axis.
    Type: Grant
    Filed: July 14, 1989
    Date of Patent: November 20, 1990
    Assignee: Moscovskeo Nauchno-Proizvodstvennoe Objedinenie
    Inventors: Boris P. Gorodissky, Alexandr I. Sambursky
  • Patent number: 4889436
    Abstract: An adapter assembly for the New Process Model 203 transfer case for four-wheel drive vehicles. The adapter assembly includes a first disc member mountable on the front surface of the forward wall of the principal housing. The first disc comprises a rearwardly extending bearing housing in the plane of the forward wall replacing the original forward bearing for the transfer shaft. A replacement bearing is mounted within the bearing housing on a new axis parallel to and displaced from the original axis of the transfer shaft, permitting continued usage of the chain after the chain would have to have been replaced according to prior practice.
    Type: Grant
    Filed: March 27, 1989
    Date of Patent: December 26, 1989
    Inventor: Arthur E. Lynn, Jr.
  • Patent number: 4869603
    Abstract: To provide a snug-fitting bearing for journalling the spindle end of a printing press cylinder, a flanged bearing sleeve is disposed in a bore in the press frame and an anti-friction plastic material which compensates for the bearing play is injected into an external annular groove in the bearing sleeve of considerably less width than the depth of the bore in the press frame. Preferably, the bore is pretreated with a volatile release agent and the plastic material cures in situ to become a narrow bearing ring in the groove. The bearing sleeve may have eccentric annular shoulders on either side of the groove and a thin annular metal bushing may be interposed between the cylinder spindle and the interior of the sleeve bearing.
    Type: Grant
    Filed: September 9, 1988
    Date of Patent: September 26, 1989
    Assignee: Man Roland Druckmaschinen Aktiengesellschaft
    Inventors: Rudolf Melzer, Gunter Tollowski
  • Patent number: 4859087
    Abstract: A journal bearing block (10) has opposed sides (62, 63) received in sliding relation between the opposed sides defined by gibs (14, 16) of a slot (18) of a printing press sideframe (12). One of the gibs (14) has an elongate groove (54) and one of the bearing block sides (62) has an adjacent elongate groove (74). A key (86) is received by the bearing block groove (64) and includes an outstanding portion (90) extending into the gib groove. The key includes a threaded opening (70) and is connected to the bearing block by a rotatable adjustment screw (74). The key is narrower than the bearing block groove but substantially the same thickness as the gib groove, whereby rotation of the adjustment screw causes the key to travel laterally in the bearing block groove with the result that the bearing block, with its rotary die journal travels laterally relative to the sideframe (12).
    Type: Grant
    Filed: October 24, 1988
    Date of Patent: August 22, 1989
    Assignee: Allied Gear and Machine Co., Inc.
    Inventor: Larry J. Greer
  • Patent number: 4842422
    Abstract: Track level adjustment mechanism for adjusting the level of an elongated drawer track relative to cabinetry track support structure, comprises a track having a wall portion facing the support structure, a dog element adjacent the wall portion and a fastener attaching that element to the support structure to be loosened for allowing movement of the dog element relative to the support structure and to the track wall portion, and a shoulder on the track to be engaged by the dog element in response to dog element movement relative to the support structure, thereby to level adjust the track wall portion relative to the support structure.
    Type: Grant
    Filed: August 25, 1988
    Date of Patent: June 27, 1989
    Inventor: Gary W. Nelson
  • Patent number: 4830517
    Abstract: A device for locking rotation of an eccentric bearing used in a compression ratio changing device for an internal combustion engine where rotation of the eccentric bearing interposed between a connecting rod and a piston-pin changes the compression ratio. The device includes at least two groups of lock-pins, lock-pin holes formed in the connecting rod and lock holes formed in the eccentric bearing. The eccentric bearing is always locked in rotation relative to the connecting rod except when the compression ratio is exchanged. The locking of the rotation of the eccentric bearing suppresses slap noises of the piston and abrasion of the sliding surfaces of the device and improves durability of the compression ratio changing device.
    Type: Grant
    Filed: June 1, 1988
    Date of Patent: May 16, 1989
    Assignee: Toyota Jidosha Kabushiki Kaisha
    Inventors: Takao Naruoka, Eiji Iwasaki
  • Patent number: 4813163
    Abstract: An alignment fitting for implements such as buckets and hammers, which are to be removably attached to a bachhoe. The invention includes a pair of cylindrical bosses, which are affixed to opposing apertures in mounting flanges on the implement. A cylindrical bushing is rotatable inside each boss. A pin is placed through an eccentric bore in each bushing, and through the backhoe dipperstick. The eccentricity of the bushings allows the bushings to compensate for misalignment that may occur in the implement or the backhoe dipperstick. The invention may also be used with a hitch to provide greater tolerances when nonstandard size implements are attached.
    Type: Grant
    Filed: January 26, 1988
    Date of Patent: March 21, 1989
    Assignee: Construction Technology, Inc.
    Inventors: Johnston R. Livingston, Paul T. St. Louis
  • Patent number: 4725152
    Abstract: A capstan or pressure roller shaft is journalled in a single one-piece elongated bearing member having a bearing surface sufficient to define radial position and inclination of the shaft. The bearing member is aligned with respect to a mounting support on the tape recorder, to adjust shaft alignment, by two axially spaced cylindrical positioning surfaces which are received in axially spaced cylindrical receiving surfaces in the support. At least one of the positioning surfaces is eccentric with respect to the bearing member, and is fixed to the bearing member so that rotation of the bearing member about an axis defined by the receiving surfaces adjusts the inclination of the shaft. The shaft inclination may be adjusted by inserting a tool into the tape recorder, engaging a journal formed in a mounting support adjacent the bearing member, the tool having a gear which engages a toothed portion on the bearing member for rotating the bearing member about the support axis defined by the support receiving surfaces.
    Type: Grant
    Filed: October 29, 1986
    Date of Patent: February 16, 1988
    Assignee: U.S. Philips Corporation
    Inventors: Norbert Heinrich, Johann Veigl
  • Patent number: 4710036
    Abstract: A unitary sleeve mounts both thrust and radial bearings, the radial bearing being fabricated in a recessed area on an elongated extension and the thrust bearing being mounted in a thrust head at one end of the extension.
    Type: Grant
    Filed: March 20, 1986
    Date of Patent: December 1, 1987
    Assignee: Smith International, Inc.
    Inventor: Bela Geczy
  • Patent number: 4687348
    Abstract: A device for locking/unlocking rotation of an eccentric bearing interposed between a piston-pin and a connecting rod of an internal combustion engine for changing the compression ratio of the engine. The eccentric bearing has two lock holes, two guide grooves extending circumferentially from the lock holes and two colliding surfaces. The connecting rod has at least one lock-pin hole and a lock-pin is slidably inserted in the lock-pin hole. When the lock-pin is driven toward the eccentric bearing, the lock-pin can move toward the eccentric bearing and can engage the lock hole, thereby locking the rotation of the eccentric bearing. Since the colliding surfaces are provided opposed to said guide grooves, the lock-pin can reliably engage one of the lock holes without jumping the lock hole whether the eccentric bearing rotates in a normal direction or in a reverse direction. As a result, a reliable changing between a high compression ratio and a low compression ratio can be obtained.
    Type: Grant
    Filed: June 19, 1986
    Date of Patent: August 18, 1987
    Assignee: Toyota Jidosha Kabushiki Kaisha
    Inventors: Takao Naruoka, Yoshihito Moriya, Touru Ichimiya
  • Patent number: 4653344
    Abstract: This bearing system has been developed primarily for long rotating shafts having a number of support points and supported objects. A beam is preferably extruded with a T-slot in one face. The slot receives the heads of mounting bolts securing a split bearing housing to the beam. A split eccentric assembly is also provided, which is rotatively secured to the shaft by clamps to generate orbital movement of a second beam, which is secured to a split bearing housing surrounding the eccentric assembly.
    Type: Grant
    Filed: January 24, 1985
    Date of Patent: March 31, 1987
    Assignee: Belco Industries Incorporation
    Inventor: John W. Nelson
  • Patent number: 4636012
    Abstract: Track rollers are mounted to the track frame by brackets having mounting holes which are asymmetric relative to the roller shaft. This permits the rollers to be mounted in alternative positions along the frame, by turning them end-for-end, for the purpose of altering the pattern of wear caused on the track links when the links impact the rollers and for reducing impact vibrations by altering the roller spacing.
    Type: Grant
    Filed: November 23, 1983
    Date of Patent: January 13, 1987
    Assignee: Deere & Company
    Inventors: Joseph J. Smith, Dean J. Stillmunkes
  • Patent number: 4582229
    Abstract: A material metering device having a feed wheel adjustably positioned above the housing discharge orifice. The feed wheel is disposed to rotate on a shaft journalled in an eccentric bearing. The bearing is attached to the meter housing and has a bearing body selectively rotatable to and selectively securable in a plurality of distinct positions.
    Type: Grant
    Filed: October 28, 1983
    Date of Patent: April 15, 1986
    Assignee: Deere & Company
    Inventor: Lester C. Wolf
  • Patent number: 4569423
    Abstract: A traction machine for an elevator wherein a reduction gear for the traction machine rotatably mounts a first and second parallel spaced shafts such as an output and intermediate shafts inside the gear box by the wall of the gear box.
    Type: Grant
    Filed: June 3, 1983
    Date of Patent: February 11, 1986
    Assignee: Mitsubishi Denki Kabushiki Kaisha
    Inventor: Yasutaka Hirano
  • Patent number: 4535661
    Abstract: The invention relates to a power-driven steady rest for lathes, especially crankshaft turning machines, having a drive gear encompassing the workpiece, in which there is disposed a chuck for holding the workpiece and which is held on both sides adjacent the outer circumference by a bearing in a supporting plate fastened to the machine bed. The drive gear bearing is improved with regard to load bearing capacity and rotatory speed capability by the fact that the bearing consists of individual roller bearings, each of which is formed of a roller and a roller holder fastened to the supporting plate.
    Type: Grant
    Filed: December 8, 1983
    Date of Patent: August 20, 1985
    Assignee: Oerlikon-Boehringer GmbH
    Inventor: Hermann Berbalk
  • Patent number: 4502385
    Abstract: The present invention relates to an arrangement for eliminating the play or clearance between an eccentric bearing bush for a printing cylinder bearing and a bearing hole which rotatably accommodates the bush in the side frame of the printing press. Mutually contiguous surfaces of the bearing bush and the bearing hole are formed with contours which provide mutual contact between the surfaces along two areas which are substantially parallel to the bearing hole axis. The contact surfaces are separated by an angle of less than 180.degree. defined by gaps between an outer surface of the bush and an inner surface of the bearing hole.
    Type: Grant
    Filed: September 30, 1982
    Date of Patent: March 5, 1985
    Assignee: Solna Offset AB
    Inventors: Bo R. J. Carl/e/ n, Sven A. Arwidsson
  • Patent number: 4491195
    Abstract: The invention relates to an adjustable mounting arrangement (10) for a rotatable guide member (12) of a lift mast assembly (14) which eliminates the problems of inadvertent loosening, complexity of adjustment and premature wear. The mounting arrangement (10) includes a shaft (36) having an eccentric portion (42) upon which the rotatable guide member (12) is mounted. A cam member (78) is connected to a first end portion (38) of the shaft (36) and engageable by a mating member (86) which retains the shaft (36), at one of a plurality of incrementally rotational positions of the cam member (78) from rotational and axial movement. The mounting arrangement (10) is particularly useful in lift chain guide and side thrust roller applications.
    Type: Grant
    Filed: November 9, 1982
    Date of Patent: January 1, 1985
    Assignee: Towmotor Corporation
    Inventors: Jan Mikkelsen, Kjell Sorlie
  • Patent number: 4491071
    Abstract: An arrangement for securing impression as well as skew adjustment of one cylinder relative to another in a printing press. One of the cylinders has a bearing assembly occupying a cylindrical opening in the press frame. The bearing assembly includes a cylinder bearing having parallel planar support surfaces on opposite sides. An annular eccentric guide bearing has a cylindrical outer surface which is fitted into the cylindrical opening in the frame. The guide bearing is provided with opposed parallel way surfaces perpendicular to the plane containing the axes of the cylinders for slidably receiving and supporting the cylinder bearing. A first adjustment is provided for rockably positioning the guide bearing.
    Type: Grant
    Filed: April 5, 1983
    Date of Patent: January 1, 1985
    Assignee: M.A.N.-Roland Druckmaschinen Aktiengesellschaft
    Inventor: Claus Simeth
  • Patent number: 4450797
    Abstract: This invention relates to an internal combustion engine, particularly to a diesel engine. The engine comprises a crankshaft, which is connected to each of a plurality of pistons by a connecting rod and a piston pin. Each connecting rod has two bearings for the piston pin and a crankpin of the crankshaft, respectively. In order to provide a desired piston clearance between the piston at its top dead center and the bottom of the cylinder head, at least one of the bearings of the connecting rod is provided with an eccentric ring disposed between the receiving bore and the bearing bushing. During the assembling of the engine, the eccentric ring is rotated to such a position that the desired piston clearance is obtained. The bearing ring is then fixed in the resulting rotational position.
    Type: Grant
    Filed: May 11, 1983
    Date of Patent: May 29, 1984
    Assignee: Steyr-Daimler Puch Aktiengesellschaft
    Inventors: Franz Moser, Tomas Visek
  • Patent number: 4421187
    Abstract: A vehicle has two axially opposed driven wheels which are driven by two drive shafts of equal length, each flexibly drivingly coupled at its outer end to one of the wheels. A differential, which has a preferred power output line, is located closer to a first one of the wheels and further from the other wheel. A short power output shaft extends from the differential towards the first wheel and is flexibly drivingly coupled at its outer end to the inner end of the drive shaft which drives that first wheel. A long power output shaft extends from the differential towards the other wheel and is flexibly coupled at its outer end to the inner end of the other one of the drive shafts, whose outer end is drivingly coupled to that other wheel. The inner race of a bearing supports an outer part of the long power output shaft, remote from the differential, and an outer race rotatably supports the inner race.
    Type: Grant
    Filed: July 1, 1981
    Date of Patent: December 20, 1983
    Assignee: Toyota Jidosha Kabushiki Kaisha
    Inventors: Takuo Shibata, Mitsugu Izuta, Tetsuya Matano