Patents by Inventor Piotr Olszewski
Piotr Olszewski 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).
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Patent number: 7160194Abstract: A displacement joint includes an outer joint part having circumferentially spaced recesses to form tracks. A tripod is mounted in fixed rotative engagement to a driveshaft and includes a tripod spider which has spherical arms spaced circumferentially in symmetric disposition for engaging the recesses. Roller bearing assemblies are fitted in the outer joint part to support the tripod arms, with each tripod arm guided by two roller bearing assemblies. Each roller bearing assembly has a bearing shell, which receives the tripod arm, rolling members fitted with clearance in a cage and disposed between the track of the outer joint part and a contact surface of the bearing shell. The cage is guided by shoulders of the outer joint part, which laterally bound the track, wherein the cage has opposite collars in parallel relationship to the shoulders for providing an axial stop for the rolling members and the bearing shell.Type: GrantFiled: January 9, 2006Date of Patent: January 9, 2007Assignee: INA Schaeffler KGInventors: Piotr Olszewski, Siegfried Tisch, Martin Kruppa, Wolfgang Fugel
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Publication number: 20060279532Abstract: A system for manual data input into computers, mobile phones or other electronic devices comprising a display device (70) and two pointing devices (60L, 60R) each equipped with a cluster of up to five finger-activated sensors (63). The display device presents a subset of characters from an alphabet and two rigid cursor patterns (40L, 40R) with up to five individual cursors representing operator's fingers. An operator uses motions of hands or thumbs to position the cursor patterns over the characters to be input and inputs them by using the finger-activated sensors. The system combines the functions of a keyboard and a pointing device and allows for data input utilizing all the fingers of operator's hands while looking only at the display device.Type: ApplicationFiled: June 14, 2005Publication date: December 14, 2006Inventors: Piotr Olszewski, Andrzej Sluzek
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Patent number: 7140967Abstract: A displacement joint includes an outer joint part having circumferentially spaced recesses to form tracks. A tripod is mounted in fixed rotative engagement to a driveshaft and includes a tripod spider which has spherical arms spaced circumferentially in symmetric disposition for engaging the recesses. Roller bearing assemblies are fitted in the outer joint part to support the tripod arms, with each tripod arm guided by two roller bearing assemblies. Each roller bearing assembly has a bearing shell, which receives the tripod arm, rolling members fitted with clearance in a cage and disposed between the track of the outer joint part and a contact surface of the bearing shell. The cage is guided by shoulders of the outer joint part, which laterally bound the track, wherein the cage has opposite collars in parallel relationship to the shoulders for providing an axial stop for the rolling members and the bearing shell.Type: GrantFiled: June 2, 2003Date of Patent: November 28, 2006Assignee: INA-Schaeffler KGInventors: Piotr Olszewski, Siegfried Tisch, Martin Kruppa, Wolfgang Fugel
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Publication number: 20060116211Abstract: A displacement joint includes an outer joint part having circumferentially spaced recesses to form tracks. A tripod is mounted in fixed rotative engagement to a driveshaft and includes a tripod spider which has spherical arms spaced circumferentially in symmetric disposition for engaging the recesses. Roller bearing assemblies are fitted in the outer joint part to support the tripod arms, with each tripod arm guided by two roller bearing assemblies. Each roller bearing assembly has a bearing shell, which receives the tripod arm, rolling members fitted with clearance in a cage and disposed between the track of the outer joint part and a contact surface of the bearing shell. The cage is guided by shoulders of the outer joint part, which laterally bound the track, wherein the cage has opposite collars in parallel relationship to the shoulders for providing an axial stop for the rolling members and the bearing shell.Type: ApplicationFiled: January 9, 2006Publication date: June 1, 2006Inventors: Piotr Olszewski, Siegfried Tisch, Martin Kruppa, Wolfgang Fugel
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Publication number: 20040038742Abstract: A displacement joint includes an outer joint part having circumferentially spaced recesses to form tracks. A tripod is mounted in fixed rotative engagement to a driveshaft and includes a tripod spider which has spherical arms spaced circumferentially in symmetric disposition for engaging the recesses. Roller bearing assemblies are fitted in the outer joint part to support the tripod arms, with each tripod arm guided by two roller bearing assemblies. Each roller bearing assembly has a bearing shell, which receives the tripod arm, rolling members fitted with clearance in a cage and disposed between the track of the outer joint part and a contact surface of the bearing shell. The cage is guided by shoulders of the outer joint part, which laterally bound the track, wherein the cage has opposite collars in parallel relationship to the shoulders for providing an axial stop for the rolling members and the bearing shell.Type: ApplicationFiled: June 2, 2003Publication date: February 26, 2004Applicant: INA-SCHAEFFLER KG, Herzogenaurach, GermanyInventors: Piotr Olszewski, Siegfried Tisch, Martin Kruppa, Wolfgang Fugel
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Patent number: 6431986Abstract: A constant-velocity universal joint of a tripod type, includes a housing representing a first rotation part and having three tracks, each track having two flat running surfaces in parallel relationship, a second rotation part configured as a tripod spider and having three arms defined by arm axes arranged in a plane and intersecting in a joint axis. The arms are guided in the running surfaces of the housing, wherein each of the arms is received in a rolling-contact bearing including an inner ring, an outer ring, cylindrical rolling elements, and retainer rings arranged as mirror images of one another for mutual axial securement of all components of the rolling-contact bearing with respect to the arm axis.Type: GrantFiled: January 30, 2001Date of Patent: August 13, 2002Assignee: Ina Wälzlager Schaeffer oHGInventor: Piotr Olszewski
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Publication number: 20010005694Abstract: A constant-velocity universal joint of a tripod type, includes a housing representing a first rotation part and having three tracks, each track having two flat running surfaces in parallel relationship, a second rotation part configured as a tripod spider and having three arms defined by arm axes arranged in a plane and intersecting in a joint axis. The arms are guided in the running surfaces of the housing, wherein each of the arms is received in a rolling-contact bearing including an inner ring, an outer ring, cylindrical rolling elements, and retainer rings arranged as mirror images of one another for mutual axial securement of all components of the rolling-contact bearing with respect to the arm axis.Type: ApplicationFiled: January 30, 2001Publication date: June 28, 2001Inventor: Piotr Olszewski
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Patent number: 6132099Abstract: The invention relates to a radial bearing assembly for a drive shaft of vehicles which connects a transmission (2) with a driven front wheel (5), with a laterally sealed radial bearing (11a) received in a holder (15) which is securely fixed in place on the side of an internal combustion engine for supporting the drive halfshaft (7). In accordance with the invention, a drive shaft (7) in the form of a hollow shaft is provided, with an inner ring (12a) of the radial bearing (11a) being formed from a sheet metal band in a non-cutting fashion. The radial bearing (11a) is received via a spherically shaped outer surface area (14) of an outer ring (13a) in an oriented position in the holder (15) which is assembled from flanges (16, 17).Type: GrantFiled: November 4, 1998Date of Patent: October 17, 2000Assignee: INA Walzlager Schaeffler OHGInventors: Piotr Olszewski, Pierre Simon, Raphael Wittmann, Peter Jennes
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Patent number: 5935009Abstract: A tripod constant velocity universal joint comprising a housing (5) having longitudinal grooves (4) arranged in spaced relationship on a periphery thereof, and a tripod spider (2) comprising symmetrically arranged, rotationally symmetrical ball-headed trunnions (3) on which an inner ring (6) comprised of two semi-shells or made as a split ring is retained in a form-fitted manner for angular displacement, said inner ring (6) being radially surrounded by a guide element (7) with rolling elements (10) arranged between the guide element (7) and an outer ring (11) which is guided outwardly for sliding displacement in the longitudinal grooves (4), characterized in that a length of the rolling elements (10) is larger than a width of the outer ring (11), the guide element (7) as seen in longitudinal cross-section is U-shaped and comprises end flanges (8, 9) which extend radially outwards so as to project beyond an inner diameter of the outer ring 11.Type: GrantFiled: November 7, 1996Date of Patent: August 10, 1999Assignee: Ina Walzlager Schaeffler KGInventors: Didier Hosdez, Piotr Olszewski