Having Felt Or Wick Patents (Class 384/214)
  • Patent number: 7927017
    Abstract: Bearing assembly that is of integral construction or manufacture and is capable of internal lubrication. The all metal construction gives a long lasting, easily installable, easy to lubricate, smooth ride bushing assembly.
    Type: Grant
    Filed: January 15, 2008
    Date of Patent: April 19, 2011
    Assignee: Howe Racing Enterprises
    Inventor: Kelly Molenaar
  • Patent number: 6398415
    Abstract: A bearing device for a rotary shaft is comprised of a porous sliding bearing and a felt ring fit around the sliding bearing. The sliding bearing and the felt ring are filled with lubricant oil. The felt ring is made of needle-punching polypropylene fibers of 0.4-20 micrometers in diameter. The felt ring is manufactured by shaping the polypropylene fibers into a felt sheet, heat-treating the felt sheet to eliminate fuzz from the sheet surfaces, and punching the felt sheet in a ring shape. The sliding bearing has a plurality of grooves on its outer peripheral surface with which the felt ring contacts. Each groove is formed to extend in a horizontal direction to restrict the lubricant oil from flowing downward.
    Type: Grant
    Filed: March 30, 2000
    Date of Patent: June 4, 2002
    Assignee: Asmo Co., Ltd.
    Inventors: Hiromitsu Ibe, Hisashi Sakakibara, Shigeru Morishita, Kazushi Gotou, Yousuke Natsume, Hiroto Kawai
  • Patent number: 5710468
    Abstract: An end frame assembly for an electric motor is described. In one embodiment, the assembly includes an endshield, a bearing, an oil wick, and an oil well cover. The oil well cover has at least one endshield engagement tang for aligning with and being secured within an oil well cover engagement opening in the endshield and at least one bearing alignment finger for assisting in maintaining the bearing oriented with respect to a rotor shaft.
    Type: Grant
    Filed: August 23, 1995
    Date of Patent: January 20, 1998
    Assignee: General Electric Company
    Inventors: Ralph E. Church, Richard W. Shuler
  • Patent number: 5447376
    Abstract: A self contained, "package", bearing system, has relatively rotating and sliding, precisely formed, truncated spherical, journal and bearing surfaces with a high hardness and with a low surface roughness, that operate on a thin hydrodynamic film of pressurized lubricant, when the bearing system is operated under any combination of axial and radial loads. It optionally contains either a supply of dry lubricant, or normally a capillary supported, self-contained reserve of fluid lubricant, and a system of "internally discharging" throwers, for keeping the fluid lubricant within the system, to promote a long operating life.Lubricant re-circulation channels at the ends of the bearing and the inherently lower rates of flow of lubricant from the ends of truncated spherical bearings facilitates achieving long operating life. Grooves and recesses are optionally included in the bearing surfaces for enhancing the axial load capacity.
    Type: Grant
    Filed: December 13, 1993
    Date of Patent: September 5, 1995
    Inventors: Eldon R. Cunningham, deceased, Shirley J. Cunningham, personal representative
  • Patent number: 5129737
    Abstract: A plastic bracket and bearing assembly for a shaft of a fractional horsepower electric motor which includes a molded heat insulating plastic article having two or more feet attachable to the motor and spaced outwardly from a central hub having a recess for receiving a washer-shaped lubricating wick of fibrous material, spaced passageways in the bracket to provide oil to the wick, and a spherical self-aligning bearing block with a bore for supporting the motor shaft.
    Type: Grant
    Filed: January 28, 1991
    Date of Patent: July 14, 1992
    Assignee: G. H. Stenner & Co.
    Inventor: Gustav H. Stenner
  • Patent number: 5108199
    Abstract: A motor bearing system is provided in which a motor shaft is received by a bearing which is circumferentially engaged by a first lubricating felt washer. A second lubricating felt washer is received by a retaining cup opposite the first lubricating felt washer, with a motor bracket interposed therebetween. The second lubricating felt washer is forced into contacting engagement with the first such washer by means of pins extending from the retaining cup and passing through apertures within the end bracket. Accordingly, the effective lubricating reservoir is significantly increased and the integrity of the lubricating reservoir is maintained.
    Type: Grant
    Filed: December 17, 1990
    Date of Patent: April 28, 1992
    Assignee: Ametek-Lamb Electric
    Inventor: Mark K. Dwyer
  • Patent number: 4910424
    Abstract: A dynamoelectric machine comprises a housing (H), a rotatable shaft (S) installed in the housing and a bearing (B) in which the shaft is journaled. The bearing is installed in the housing adjacent each end wall (W) thereof. A bearing retainer (3) fits over the bearing and contacts an inner portion (7) of the end wall to hold the bearing in position. The retainer includes fingers (21) for self-aligning the retainer with the bearing and for maximum control and flow of lubricant along each end and outer surface of the bearing.
    Type: Grant
    Filed: October 7, 1988
    Date of Patent: March 20, 1990
    Assignee: Emerson Electric Co.
    Inventor: Gary W. Borcherding
  • Patent number: 4910788
    Abstract: There is provided according to the invention a slide bearing unit in which a cylindrical outer cylinder which is made of thin steel plate is disposed on outer periphery of an oil-impregnated bearing metal with a certain distance; an oil-impregnated bearing metal is held either by a section formed by bending ends of the outer cylinder inwardly or an annular member used in cooperation with the sections formed by bending inwardly; a gap formed inside is filled with an oil-storage material so that the oil-impregnated bearing metal is supplied with a lubricating oil; and either the section formed by bending inwardly or the annular member may be provided with a small hole in order to by-pass internal pressure, when required.
    Type: Grant
    Filed: January 25, 1989
    Date of Patent: March 20, 1990
    Inventor: Rikuro Shimizu
  • Patent number: 4634298
    Abstract: A self-aligning bearing assembly particularly suited for use in a fractional horsepower electric motor includes a bearing having a partially spherical outer surface and a central hole for rotatably journaling a shaft therein. A housing defining a generally cylindrical opening having an internal surface which is radially spaced from the bearing, also defines a bearing seat adjacent to and conforming in shape with a portion of the outer surface of the bearing. The housing further includes a lip extending radially inward from the internal surface of the cylindrical opening. A spring bearing retainer of resilient flexible sheet-like material and having a generally planar body is inserted into the cylindrical opening. The retainer includes a plurality of radially deformable projections which extend outwardly from the body and has a central aperture for engagement with a second portion of the outer surface of the bearing.
    Type: Grant
    Filed: August 14, 1985
    Date of Patent: January 6, 1987
    Assignee: A. O. Smith Corporation
    Inventor: Bradly A. Crawford
  • Patent number: 4594009
    Abstract: A casing for porous self-aligning bushings combines in a single assembly formed from an elastic material all of the members which contribute to hold a bushing in position while allowing it to self-align, fits hubs of any configuration, provides insulation from noise and vibration, recovers lubricant normally expelled during relative rotation between the bushing and shaft therein. The casing can store up an amount of lubricant and, in the instance of a bushing rotating around a stationary shaft, retains the lubricant which would otherwise be forced out by centrifugal force from the outer porous surface of the bushing. A bearing includes such casing and the bushing elastically fitted therein.
    Type: Grant
    Filed: July 13, 1983
    Date of Patent: June 10, 1986
    Assignee: European Electric Motors Design and Engineering Anstalt
    Inventor: Giorgio Gutris