Patents by Inventor Armin Olschewski

Armin Olschewski 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).

  • Multi-part rolling bearing cage with snap fit interconnection
    Patent number: 4387939
    Abstract: A cage for a rolling bearing is formed of a plurality of cage parts. One of the cage parts is comb shaped, having axially extending cross-pieces adapted to be engaged by another cage piece, which may be a ring. Axially extending projections with enlarged ends are provided on the cage ring, at the inner circumference thereof, engaging correspondingly shaped recesses in the other cage part, thereby to enable snapping of the cage parts together. Recesses or projections are provided on the end of each cross-piece of the comb-shaped part, for engaging corresponding projections or recesses in the side ring of the cage, thereby to stabilize the cage in the circumferential and radial directions.
    Type: Grant
    Filed: July 29, 1981
    Date of Patent: June 14, 1983
    Assignee: SKF Kugellagerfabriken GmbH
    Inventors: Lothar Walter, Armin Olschewski, Klaus Kispert, Hans Meining
  • Method and apparatus for casting or injection-molding of cages of cylindrical rolling elements
    Patent number: 4383670
    Abstract: In a method and apparatus for casting or molding cages for rolling elements, two slides are provided for each pocket. The slides have an engaging, inclined surface, and are shaped to permit one of the slides to be removed by initially sliding it along the inclined surface. The other slide may thereby be moved laterally in the formed pocket, and withdrawn from the pocket. Facing slides of adjacent pockets may be joined together, with limited movement possible therein, to form a complete ring serving as a mold member.
    Type: Grant
    Filed: August 10, 1981
    Date of Patent: May 17, 1983
    Assignee: SKF Kugellagerfabriken GmbH
    Inventors: Armin Olschewski, Manfred Brandenstein, Lothar Walter, Heinrich Kunkel, Herbert Dobhan, Peter Horling, Norbert Klupfel
  • Thin-walled bearing bushings produced in the drawing process
    Patent number: 4377313
    Abstract: Thin-walled bearing bushing produced in a drawing process for the support of pins in universal joints, consisting of a cylindrical sleeve section and a bottom section which closes this cylindrical sleeve section on one axial end whereby a peripheral rim with a small cross sectional radius is formed between the outside surface of the sleeve section and the outside surface of the bottom section, characterized in that a recess (9, 18, 22) is provided in one surface of the bottom section (6) radially inward of the peripheral rim (7) and axially impressed in said one surface.
    Type: Grant
    Filed: December 22, 1980
    Date of Patent: March 22, 1983
    Assignee: SKF Kugellagerfabriken GmbH
    Inventors: Armin Olschewski, Hermann Hetterich, Peter Horling
  • Clutch release device
    Patent number: 4374556
    Abstract: In a clutch release bearing assembly for a motor vehicle, the outer ring of a clutch thrust bearing has a flange engaging a radially extending flange of a housing part affixed to a sliding sleeve. This engagement permits play. An elastic ring is held fixed with respect to the outer bearing ring, and has projections extending axially from its internal circumference to engage circular surfaces of recesses of the housing. The circular surfaces of the recesses are joined by straight sections on the housing, whereby the tendency of the sliding sleeve to rotate with respect to the bearing ring effects the radial bending of the tongues, to damp such movement.
    Type: Grant
    Filed: November 5, 1980
    Date of Patent: February 22, 1983
    Assignee: SKF Kugellagerfabriken GmbH
    Inventors: Armin Olschewski, Manfred Brandenstein, Lothar Walter, Horst M. Ernst
  • Rotary drill bit with conical rotary cutters
    Patent number: 4367904
    Abstract: In a rotary drill bit assembly, comprising a drill bit body, at least one trunnion and a rotary cutter rotatably supported on the rotary cutter by bearing means including at least one inner roller bearing, the rollers of the inner roller bearings running in a deep radial bearing race groove in the trunnion and a deep radial bearing race groove formed in the bore of the rotary cutter and a filling opening extending generally axially in the trunnion between the inner bearing race grooves, characterized in that the outer bearing facing the drill bit body comprises a tapered roller bearing including a plurality of tapered rollers and wherein the filling opening for the rolling elements of the inner bearing is arranged radially inside the inner bearing race of the tapered rollers in the trunnion.
    Type: Grant
    Filed: March 5, 1981
    Date of Patent: January 11, 1983
    Assignee: SKF Kugallagerfabriken GmbH
    Inventors: Armin Olschewski, Manfred Brandenstein, Lothar Walter
  • Method and apparatus for casting or injection-molding of cages of cylindrical rolling elements
    Patent number: 4362687
    Abstract: In a method and apparatus for casting or molding cages for rolling elements, two slides are provided for each pocket. The slides have an engaging, inclined surface, and are shaped to permit one of the slides to be removed by initially sliding it along the inclined surface. The other slide may thereby be moved laterally in the formed pocket, and withdrawn from the pocket. Facing slides of adjacent pockets may be joined together, with limited movement possible therein, to form a complete ring serving as a mold member.
    Type: Grant
    Filed: November 25, 1980
    Date of Patent: December 7, 1982
    Assignee: SKF Kugellagerfabriken GmbH
    Inventors: Armin Olschewski, Manfred Brandenstein, Lothar Walter, Heinrich Kunkel, Herbert Dobhan, Peter Horling, Norbert Klupfel
  • Antifriction bearing for longitudinal movements of a shaft
    Patent number: 4357056
    Abstract: The arrangement according to the invention provides a sealing ring fastened to the end ring in a manner secure against removal by pulling or twisting. This sealing ring is provided with thickened extended arms and is fastened by snapping in the thickened arm sections behind an internal radial shoulder through openings in the flange of the end ring. The opening in the flange of the end ring may be economically manufactured, as by means of axial forms or cores, and without the need for additional radial cores, within the casting mold.
    Type: Grant
    Filed: December 5, 1980
    Date of Patent: November 2, 1982
    Assignee: SKF Kugellagerfabriken GmbH
    Inventors: Armin Olschewski, Manfred Brandenstein, Lothar Walter, Horst M. Ernst, Herbert Dobhan, Peter Horling
  • Self centering clutch thrust bearing
    Patent number: 4352419
    Abstract: A self centering clutch thrust bearing has a damping ring between one bearing ring and the sliding sleeve of a housing. The damping ring has resilient projections positioned to engage recesses in the housing with play, to damp small turning motions, and larger projections positioned to engage other recesses in the housing with play, to damp larger turning forces. The resilient projections are mounted to be operative in damping the forces prior to the larger projections.This invention relates to self centering clutch thrust bearings, and more in particular to the provision of damping means in such bearings.
    Type: Grant
    Filed: July 16, 1980
    Date of Patent: October 5, 1982
    Assignee: SKF Kugellagerfabriken GmbH
    Inventors: Armin Olschewski, Manfred Brandenstein, Lothar Walter
  • Clutch release device
    Patent number: 4340135
    Abstract: A clutch release device has a pressure plate mounted on a sliding sleeve, and a stationary ring of a bearing abut one side of the pressure plate. A clutch lever abuts the other side of the pressure plate, and is held from axial removal by a ring having a flexible outer rim. The holding ring is held to the pressure plate by a flange on the sliding sleeve. The clutch lever has a central aperture fitted over a central conical portion of the pressure plate, the aperture having a pair of inwardly directed projections. The outer diameter of the holding ring is greater than the distance between the facing ends of the projections.
    Type: Grant
    Filed: March 3, 1980
    Date of Patent: July 20, 1982
    Assignee: SKF Kugellagerfabriken GmbH
    Inventors: Armin Olschewski, Manfred Brandenstein, Lothar Walter, Heinrich Kunkel
  • Linear motion rolling bearing
    Patent number: 4339157
    Abstract: A linear motion rolling bearing including an outer sleeve, a cage within the sleeve for guiding rolling elements, a plurality of endless channels including axial races and return passages filled with rolling elements, and end rings covering the outer peripheral surfaces of the cage which extend axially beyond the outer sleeve, has provision for lubricating these channels while the bearing is in operation by radial excavations defined between adjacent surfaces of the outer sleeve and each end ring, the excavations communicating with an annular groove in the bore of the housing and portions of an annular groove in the outer periphery of the cage extending circumferentially between races of adjacent endless channels.
    Type: Grant
    Filed: March 27, 1980
    Date of Patent: July 13, 1982
    Assignee: SKF Kugellagerfabriken GmbH
    Inventors: Armin Olschewski, Manfred Brandenstein, Lothar Walter, Horst M. Ernst
  • Novel molding composition providing shaped articles of improved strength and heat and age resistance
    Patent number: 4339374
    Abstract: Novel molding compositions are described which are capable of being molded to form structural shapes, such as roller bearing cages, for example, and which comprise from about 40 to about 60% thermoplastic resin, preferably a polyamide, as a matrix, and uniformly dispersed therein, from about 5 to 15% and preferably about 5 to 10% carbon fiber, and about 15 to 25%, preferably about 15 to 20% glass fiber; the molded and set compositions having improved heat resistance, coefficient of heat expansion, bending strength, tensile strength, wear factor, coefficient of friction, heat conductivity, ease of processability and elastic deformability, as compared to similar compositions of the prior art.
    Type: Grant
    Filed: November 28, 1980
    Date of Patent: July 13, 1982
    Assignee: SKF Kugellagerfabriken GmbH
    Inventors: Armin Olschewski, Manfred Brandenstein, Heinrich Kunkel
  • Linear motion rolling bearing
    Patent number: 4328999
    Abstract: A linear motion rolling bearing including an outer sleeve and a cage with loaded and return races defined therebetween and a plurality of roller elements in these races, has opposite end rings molded onto the outer sleeve and formed as a unitary structure with the outer sleeve including strips extending between and connected to the rings and extending axially along the bore of the outer sleeve, to maintain the end rings aligned and non-rotatable relative to the outer sleeve.
    Type: Grant
    Filed: March 6, 1980
    Date of Patent: May 11, 1982
    Assignee: SKF Kugellagerfabriken GmbH
    Inventors: Armin Olschewski, Manfred Brandenstein, Lothar Walter, Horst M. Ernst
  • Linear motion ball bearings
    Patent number: 4311348
    Abstract: A linear motion ball bearing has an outer sleeve formed from a flat blank rolled into a circular split-sleeve, a cylindrical cage situated within the bore of the outer sleeve and defining therewith continuous ball races filled with a plurality of balls, the axial gap and bore diameter of the outer sleeve being variable to provide adjustment of the bearing.
    Type: Grant
    Filed: July 5, 1979
    Date of Patent: January 19, 1982
    Assignee: SKF Kugellagerfabriken GmbH
    Inventors: Armin Olschewski, Manfred Brandenstein, Lothar Walter, Horst M. Ernst, Friedrich Schido
  • Ball bearing
    Patent number: 4307920
    Abstract: A linear moving ball bearing has a cage with axially extending ball guide channels joined at their ends by semi-circular turn around channels, one of the axially extending channels being open radially inward for load carrying balls and the other axially extending guide channel directing unloaded balls. An outer sleeve closely surrounds the cage as it continues in the region of the axially extending guide channels, and has crescent shaped slots extending therethrough aligned with the semicircular turn around channels.
    Type: Grant
    Filed: July 11, 1979
    Date of Patent: December 29, 1981
    Assignee: SKF Kugellagerfabriken GmbH
    Inventors: Armin Olschewski, Manfred Brandenstein, Lothar Walter, Horst M. Ernst
  • Noise reducing clutch disengagement
    Patent number: 4306641
    Abstract: In a noise reducing disengagement device for motor vehicle clutches having rolling elements and adapted to be radially displaceable with respect to a sliding sleeve, the bearing includes an apertured fixed race having a radially directed flange on a plate fixedly mounted with respect to the sleeve. The fixed race has a damping ring coupled thereto and contacting the flange on the side toward the rolling elements, and at least three damping members distributed on the circumference of the plate. The plate includes a plurality of recesses, the damping members passing through the apertures in the fixed race and entering the recesses in the plate.
    Type: Grant
    Filed: November 19, 1979
    Date of Patent: December 22, 1981
    Assignee: SKF Kugellagerfabriken GmbH
    Inventors: Armin Olschewski, Manfred Brandenstein, Lothar Walter, Horst M. Ernst
  • Method of manufacturing a seamless outer sleeve for a ball bearing
    Patent number: 4294100
    Abstract: A method of manufacturing a seamless outer sleeve for a ball bearing, wherein the sleeve is formed of a hollow cylindrical tube section of uniform wall thickness, with race sections paralleling its axis, projecting radially inward, and formed by non-cutting methods, after which the outer circumference of the sleeve section is cut away by the amount of the depth of the race sections. The race sections for the load-carrying balls are non-cuttingly formed by embossing adjoining ends of race sections together with race transitions which are inclined with respect to the longitudinal direction. The race sections can be slightly arcuate with respect to the longitudinal direction of the sleeve and formed by rolling.
    Type: Grant
    Filed: July 11, 1979
    Date of Patent: October 13, 1981
    Assignee: SKF Kugellagerfabriken GmbH
    Inventors: Armin Olschewski, Manfred Brandenstein, Lothar Walter, Horst M. Ernst, Toni Schulz
  • Rolling bearing for relative linear movement on a shaft
    Patent number: 4293166
    Abstract: In a rolling bearing for longitudinal movement with respect to a shaft, the rolling elements have longitudinal cross sections with concave central sections adapted to engage a cylindrical machine element, and shaped ends adapted to roll on a support surface of the machine element. The bearing includes a shell structure for guiding the rolling elements to follow continuous pathways. Each pair of adjacent rolling elements are separated from contact with one another by a separating roller having a convex longitudinal cross section which engages the concave portions of the rolling elements with line contact.
    Type: Grant
    Filed: March 31, 1980
    Date of Patent: October 6, 1981
    Assignee: SKF Kugellagerfabriken GmbH
    Inventors: Horst M. Ernst, Armin Olschewski, Rainer Schurger, Lothar Walter, Manfred Brandenstein, Erich Burkl
  • Rotary drill bit
    Patent number: 4284310
    Abstract: A rotary drill bit assembly comprising a drill bit body, at least one trunnion formed integrally with the drill bit body and a rotary cutter rotatably supported on the trunnion by bearing means. The bearing means consist of at least two rows of balls which ride between an inner raceway groove formed integrally in the trunnion and an outer raceway groove formed in the interior peripheral surface of the rotary cutter. A filling hole or port is provided in the drill bit body which terminates at its inner end in each raceway so that the balls of the corresponding row may be assembled in the annular space between the trunnion and rotary cutter. A filler pin closes the corresponding filling hole or port and has a terminal end which complements the cross section of the raceway groove.
    Type: Grant
    Filed: August 3, 1979
    Date of Patent: August 18, 1981
    Assignees: Sandvik AB, Aktiebolaget SKF
    Inventors: Armin Olschewski, Manfred Brandenstein, Lothar Walter, Heinrich Kunkel, Horst M. Ernst
  • Linear motion bearing
    Patent number: 4278305
    Abstract: A linear motion ball bearing having an outer sleeve and a cylindrical ball-guide cage with endless rows of balls axially movable on a central shaft, the cage defining for each row a main guideway for loaded balls engaged by a race plate and a return guideway for unloaded balls, this race plate situated partially in a recess extending radially inward in the cage and partially in a depression extending radially outward in an adjacent portion of the bore surface of the outer sleeve. During assembly of the bearing the race plates are movable radially inward when the cage is inserted axially into the bore of the outer sleeve, and the race plates are moved radially outward into the depressions of the sleeve when balls are inserted in the cage's guideways.
    Type: Grant
    Filed: November 19, 1979
    Date of Patent: July 14, 1981
    Assignee: SKF Kugellagerfabriken GmbH
    Inventors: Armin Olschewski, Manfred Brandenstein, Lothar Walter, Horst M. Ernst
  • Cage for a rolling bearing
    Patent number: 4278307
    Abstract: A cage for a rolling bearing has spreadable holding projections defining pockets for receiving rolling elements. In order to inhibit separation of the rolling elements from the cage after insertion of the rolling elements between the holding projections, the cage has deformable or spreadable cage portions positioned to be spreadable or deformed after insertion of the rolling elements in the cage, for supporting the adjacent holding projections against movement away from the adjacent rolling elements.
    Type: Grant
    Filed: June 26, 1978
    Date of Patent: July 14, 1981
    Assignee: SKF Kugellagerfabriken GmbH
    Inventors: Armin Olschewski, Heinrich Kunkel, Manfred Brandenstein, Rainer Schurger