Patents Assigned to SKF
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Patent number: 4057070Abstract: A cleaning apparatus for cleaning mechanical workpieces, such as bearings, comprises a reservoir for containing a cleaning liquid, a stationary conveyor mechanism partially immersed in the cleaning liquid, and a high frequency vibration source disposed in proximity to and near the bottom of the reservoir. Responsive to the vibration source transmitting vibratory energy via a coupling medium to the cleaning liquid, the workpieces are simultaneously conveyed along the conveyor mechanism and cleansed in the cleaning liquid.Type: GrantFiled: May 20, 1976Date of Patent: November 8, 1977Assignee: SKF Industrial Trading and Development Company B.V.Inventors: Evert van Amerongen, Willem M. Buhrman
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Patent number: 4055371Abstract: A ball bearing has an inner ring and an outer ring defining inner and outer races respectively. A row of balls is provided between the races, and a cage holds the balls spaced apart from one another. The compartments of the cage are staggered alternately, so that adjacent balls engage opposite regions of the races to inhibit axial play.Type: GrantFiled: June 7, 1976Date of Patent: October 25, 1977Assignee: SKF Industrial Trading and Development Company, B.V.Inventors: Horst Manfred Ernst, Armin Olschewski, Rainer Schurger, Lothar Walter, Manfred Brandenstein, Erich Burkl
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Patent number: 4055382Abstract: A process and apparatus for the automatic checking of machined part surfaces for surface flaws by means of bundled light rays which are directed onto the surface to be checked by means of optical instruments, whereby the light rays are reflected by the surface with varying intensity and in accordance with the nature of the surface, and whereby the light rays, at least partly, are redirected via optical instruments towards at least one light-sensitive element which converts the reflected light energy into electrical signals, and the step of separately evaluating the reflected amount of light as far as its varying intensity and dispersion is concerned, in order to indicate surface flaws of different types, as for example, material and machining flaws.Type: GrantFiled: January 27, 1976Date of Patent: October 25, 1977Assignee: SKF Industrial Trading and Development Company, B.V.Inventors: Paul Ziekman, Jan A. P. VAN Riet
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Patent number: 4054335Abstract: In a wheel bearing assembly, a roller bearing is mounted within the hub of a wheel, with the outer race of the bearing being fitted in a hub of the wheel. A sealing ring is fitted in the hub. The sealing ring has an angular cross-section, with an axially extending portion engaging the bore of the hub, and a radially inwardly extending portion extending along the outer race. A fastening device, such as a cam surface, is provided on the axially extending portion of the sealing ring to enable fastening of a cap to the assembly. A portion of the radially inwardly extending portion of the sealing ring is axially displaced away from the outer race, so that the surface thereof away from the bearing may serve as a sealing surface engaging a further seal in use of the device.Type: GrantFiled: June 12, 1975Date of Patent: October 18, 1977Assignee: SKF Industrial Trading and Development Company B.V.Inventor: Hendrikus Jacobus Maria Timmer
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Patent number: 4054336Abstract: A guide bearing for use in motor vehicles, for guiding a power take-off shaft from a clutch disengaging bearing through the borehole formed in a gear box wall. The guide bearing, at the end intended to be fastened to the gear box borehole, carries, within the guide bearing borehole, the outer rolling path for the gear bearing that supports the power take-off shaft of the disengaging clutch in the gear box. On the casing, the guide bearing carries the seating for its attachment in the borehole of the gear box.Type: GrantFiled: March 4, 1976Date of Patent: October 18, 1977Assignee: SKF Industrial Trading and Development Company B.V.Inventors: Horst Manfred Ernst, Armin Olschewski, Rainer Schurger, Lothar Walter, Manfred Brandenstein, Erich Burkl
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Patent number: 4051937Abstract: A hydraulic release mechanism for automotive clutches and the like comprising a housing and a bearing assembly. The assembly comprises a non-rotating race ring, a rotatable race ring adapted to be connected to an operating element for said clutch and a plurality of rolling elements arranged therebetween. The bearing assembly is mounted with respect to the housing for axially slidable movement and radially floating movement. The housing under pressure, the force of which is transmitted through the end of the non-rotating race ring, the rolling elements, and the rotating race ring to the clutch operating element. Preferably, the means for mounting the bearing assembly with respect to said housing comprises a flexible bellows.Type: GrantFiled: January 26, 1976Date of Patent: October 4, 1977Assignee: SKF Industrial Trading and Development Company B.V.Inventors: Roy Peter Garrett, Derek Ray Parkins, Manfred Brandenstein, Armin Olschewski
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Patent number: 4051654Abstract: An open end spinning machine in which each spinning unit is housed in a bipartite housing, each part of the housing having cooperating contact and counter-contact surfaces for forming a sealed housing.Type: GrantFiled: August 27, 1976Date of Patent: October 4, 1977Assignee: SKF Kugellagerfabriken GmbHInventor: Gerhard Bartling
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Patent number: 4050949Abstract: An improved reinforcing material for concrete and comprising a multitude of relatively short and substantially straight steel flakes. The steel flakes are of a shape tapering towards the ends of the flakes, and they have a thickness of about 0.1 mm to about 0.5 mm, a maximum width of at least about ten times the thickness, but at least about 2 mm, and a length of at least about 100 times the thickness. They are intended to be uniformly distributed and in principle randomly orientated in the concrete. The most preferred dimensions are: thickness 0.1 to 0.2 mm, maximum width 4 to 6 mm, and length 20 to 80 mm.Type: GrantFiled: November 24, 1975Date of Patent: September 27, 1977Assignee: SKF Nova ABInventors: Bengt G. S. Lundgren, Sture B. G. Ostling
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Patent number: 4049012Abstract: A method and apparatus for measuring and keeping constant the water content in a highly heated salt bath, by measuring the change in dew point of a gas flowed over the salt bath.Type: GrantFiled: September 20, 1976Date of Patent: September 20, 1977Assignee: SKF Industrial Trading and Development Company B.V.Inventor: Johannes Maria van de Kooi
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Patent number: 4047770Abstract: A hub bearing unit assembly having an inner and outer race ring, which being unified with a fastening flange, with rows of rolling elements located between the races, said rolling elements being separated from one another by means of a cage, as well as comprising seals, which retain a lubricant contained between the rolling elements, the bearing parts being connected to a shaft or part of a shaft, wherein the end part of the inner race opposite the flange section and situated outside the inner side of said race ring, the so-called head section, comprises coupling elements by means of which the race is connected to the shaft or a part of it so as to transmit power.Type: GrantFiled: September 22, 1975Date of Patent: September 13, 1977Assignee: SKF Industrial Trading and Development Company, B.V.Inventors: Abraham Korenhof, Hendrikus Jan Kapaan
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Patent number: 4048527Abstract: An electric machine comprising a stator and a rotor. The stator consists of two sections made of a mouldable plastic material wherein at least the means providing the magnetic flux is formed integrally with the stator sections. The assembly further includes means securing the stator sections in position circumscribing the rotor.Type: GrantFiled: October 9, 1975Date of Patent: September 13, 1977Assignee: SKF Industrial Trading and Development Company, B.V.Inventors: Stig Lennart Hallerback, Leif Lachonius
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Patent number: 4046433Abstract: A wheel bearing unit for motor vehicles with at least two bearing parts which can turn relative to one another, between which at least two rows of roll bodies are arranged. The bearing parts each have an outer portion, the first of said outer portions being fastened to the vehicle, the other to the wheel. The fastening is effected by mating threads axially aligned between one outer portion and a connecting part. Means are provided for securing the mated threaded portions against relative loosening rotation.Type: GrantFiled: March 22, 1976Date of Patent: September 6, 1977Assignee: SKF Industries, Inc.Inventor: Heinz Kiener
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Patent number: 4044871Abstract: A hydraulic release mechanism for automobile clutches comprising a housing open at one end and a bearing. The bearing comprises a rotating race ring adapted to be connected to the operating member of the clutch, a non-rotating race ring and a plurality of roller elements located therebetween. The non-rotating race ring is slidably arranged with respect to the housing, and seal means is arranged on the non-rotating race ring between it and the surface of the housing to enclose the housing to form a pressure chamber while permitting the race ring to move on introduction of pressurized fluid into the housing.Type: GrantFiled: November 26, 1974Date of Patent: August 30, 1977Assignee: SKF Industrial Trading and Development Company, B. V.Inventor: Heinz Kiener
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Patent number: 4042422Abstract: A method of forming a rotary element for a wheel comprising a brake device provided for example with a brake disc and a bearing having an outer and an inner ring between which rolling elements in two rows are arranged, the rings being provided with a flange to which parts of the wheel or such mechanism can be attached, characterized in that at least the inner ring, the flange and the brake device part form a single homogeneous unit and are heat treated as a unit, the ring forming the running surface of the two rows of rolling element which center a cage.Type: GrantFiled: March 17, 1975Date of Patent: August 16, 1977Assignee: SKF Industries, Inc.Inventor: Sture L. Asberg
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Patent number: 4042086Abstract: A clutch release bearing having an outer cap provided with at least one extending lug is connected to a clutch release actuating element by a flat spring having a planar shank at one end adapted to be connected to the lug and a planar shank at the other end adapted to be articulatingly connected to the actuating element. The spring is bent between the end shanks in an unstressed condition wherein the shanks lie at an acute angle to each other. During assembly the spring is further bent so that its shanks lie substantially over one another and the spring is in stressed condition.Type: GrantFiled: September 20, 1976Date of Patent: August 16, 1977Assignee: SKF Industrial Trading and Development Company B.V.Inventors: Horst M. Ernst, Manfred Brandenstein, Armin Olschewski
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Patent number: 4040683Abstract: A rolling bearing is provided with an integrally assembled fastening flange and inner and outer races and a plurality of rolling elements between the inner and outer races. The rolling elements are separated from one another by a bearing cage. A flexible material seals the area of the rolling elements and their contact surfaces for inhibiting penetration by foreign matter or loss of lubricant. At least one of the seals is fastened on one side of the rolling elements between the inner and outer races against respective first and second walls with each respective end of the seal contacting the first and second walls. The seal ends are held against the first and second walls by a relatively inflexible material element applied onto an exterior side of the seal out of contact with the walls and surrounding the exterior side of the seal for maintaining the seal ends in position.Type: GrantFiled: September 22, 1975Date of Patent: August 9, 1977Assignee: SKF Industrial Trading and Development Company B.V.Inventor: Abraham Korenhof
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Patent number: 4040684Abstract: A rolling bearing comprising two rotating parts formed by an inner and outer race fitted with mounting flanges, a plurality of rows of rolling elements, separated by cages, positioned between the races, and a plane seal for sealing the races to prevent the ingress of foreign substances while retaining any lubricant that is present in the space between the races and the seal, the plane seal being formed by a space in a substantially axial direction between the surfaces of the two rotating parts and having a seal placed therein.Type: GrantFiled: March 16, 1976Date of Patent: August 9, 1977Assignee: SKF Industries, Inc.Inventor: Hendrikus Jan Kapaan
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Patent number: 4035039Abstract: Rock bit assembly comprising a rock bit for drilling holes in the earth's crust mainly consisting of an integral bit body which can be connected to a drive shaft, a number of rotatable cutter cones which, by means of a rolling bearing arrangement, is rotatably connected to said bit body, each of said cutter cones comprising a central shaft or pin forming a part of said rolling bearing arrangement, wherein a cutter cone and bearing arrangement form a unit which is disengageably secured to said bit body by means of the outer race ring of said bearing arrangement.Type: GrantFiled: February 13, 1976Date of Patent: July 12, 1977Assignee: SKF Industrial Trading and Development Company, B.V.Inventors: Carl Eric Johansson, Hans Bertil VAN Nederveen, Hendrikus Jan Kapaan
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Patent number: 4031734Abstract: A method of manufacturing concentric machine elements from flat steel strips by permanently bending a flat steel strip of limited length along its longitudinal axis, and burring the concave surface of the strip, while supported, through the application of a force on the convex surface of the strip, so that a concentrically shaped casing is formed.Type: GrantFiled: September 9, 1975Date of Patent: June 28, 1977Assignee: SKF Industrial Trading and Development Company B.V.Inventors: Helmut Imme, Werner Moser
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Patent number: 4030191Abstract: A machine element is guided for linear movement along an I-beam by means of two endless rows of rolling elements on each side of the beam. The raceways for the roll bodies under load extend along the inner edges of the flanges of the beam, the raceways being positioned so that the force action lines on the roll bodies in the two raceways on each side of the beam converge in a direction away from the respective side of the beam.Type: GrantFiled: March 4, 1976Date of Patent: June 21, 1977Assignee: SKF Industrial Trading and Development Company, B.V.Inventors: Horst M. Ernst, Armin Olschewski, Manfred Brandenstein