...that Charles Goodyear performed some of his experiments on rubber while in debtor's prison? He was there so often he referred to it as his "hotel". Chronically in debt because of poor business sense and ill health, Goodyear depended on the generosity of friends and family. Even after he unlocked the secret to vulcanizing rubber, he was unable to improve his financial situation. When he died, his estate was $200,000 in debt.
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| Number | Title | Issue Date |
| 7361092 | Balance assembly for coupling first and second rotating members A flange member is disclosed for a balance assembly that includes a first rotating element coupled to a second rotating element. The flange member includes a main body exhibiting a predetermined imbalance vector when rotated about an axis of rotation. The flange mem... | 04/22/2008 |
| 7354216 | Grease seal cup to retain lubrication for life extension in existing splined joint A grease seal cup for a splined joint between a drive shaft and a driven shaft comprises a cylindrical portion adapted to form a seal with the outer surface of the drive shaft and a seal with a sealing member, such as a spanner nut, of the driven shaft. The grease s... | 04/08/2008 |
| 7347784 | Driveshaft assembly and method of manufacturing same A driveshaft assembly includes a yoke including a body portion, a pair of opposed yoke arms that extends generally in a first axial direction from the body portion, and a neck portion that extends generally in a second axial direction from the body portion. A drives... | 03/25/2008 |
| 7338378 | Retainer for universal joint bearing cups A journal cross includes a trunnion having a lubricant passageways formed therethrough. A retainer is disposed in the lubricant passageway and includes a body portion and a lip portion. The body portion of the retainer is retained within the lubricant passageway in ... | 03/04/2008 |
| 7192356 | Cross shaft joint A cross shaft joint tiltably coupling two shaft members each other includes: a cross shaft which includes four shaft portions and is arranged between the two shaft members; outer ring cups rotatably provided to the four shaft portions, respectively, the outer ring c... | 03/20/2007 |
| 7178423 | Noise and vibration damper for a vehicular driveshaft assembly A noise and vibration damper for use with a rotatable structure, such as a driveshaft assembly for a vehicular drive train system, includes an inner member, an elastomeric member that extends about the inner member, and an outer member that extends about the elastom... | 02/20/2007 |
| 7115037 | Universal joint and method of servicing a staked universal joint Universal joints, and more particularly, an apparatus and method for servicing staked universal joints as well as a u-joint serviced with the method and the apparatus. The service kit includes a replacement bearing assembly, a retention assembly and a spacer sized t... | 10/03/2006 |
| 7022023 | Integrated driveline flange torsional damper An integrated axle flange and torsional damper component for use on a vehicle having a driveshaft is disclosed. The integrated component includes a structural axle flange for transmitting torque, a torsional damper and an elastic component positioned between the str... | 04/04/2006 |
| 7004840 | Internal balance correction device for vehicular driveshaft assembly A balance correction device is supported within a hollow article, such as a driveshaft assembly for a vehicular drive train system, to balance the article for rotation. The balance correction device includes a first disc having a first slot provided therein and a se... | 02/28/2006 |
| 7004841 | Driveshaft assembly with retention mechanism A universal joint includes a yoke with a leg having an aperture extending therethrough. The aperture includes an annular groove. The universal joint also includes a cruciform having a trunnion, a bearing cup positioned in the aperture and mounted on the trunnion and... | 02/28/2006 |
| 6981302 | Use of driveshaft wall thickness variation to balance a driveshaft assembly A method of manufacturing a tube for a vehicle driveshaft assembly forms a flat sheet of material having a greater thickness than other portions over a portion of its width and along its length, rolling the sheet about a longitudinal axis such that its lateral edges... | 01/03/2006 |
| 6928712 | Driveshaft and method and device for producing same A method and apparatus for assembling a driveshaft, and the driveshaft itself. The driveshaft (1) includes a first attachable part (2) with a first longitudinal axis (A1), a second attachable part (3) with a second longitudinal axis (... | 08/16/2005 |
| 6918837 | Universal joint having a balancing arrangement and balancing weight for same A universal joint has a balancing arrangement and a balancing weight for the same. Each yoke arm has a support bore centered on a bore axis, the support bore having a groove. A journal cross assembly includes four journals that intersect each other perpendicularly a... | 07/19/2005 |
| 6874228 | Propshaft assembly with vibration attenuation and assembly method therefor A shaft structure and at least two non-identical inserts. The shaft structure has a cavity and vibrates in response to the receipt of an input of a predetermined frequency such that at least two second bending mode anti-nodes are generated in spaced relation to one ... | 04/05/2005 |
| 6835139 | Universal joint having a balancing arrangement A universal joint has a balancing arrangement that includes yoke arms having respectively, a support bore, centered on a common bore axis, and the support bore having a groove. A journal cross assembly comprises four journals, which axes intersect each other perpend... | 12/28/2004 |
| 6773354 | Driveshaft assembly that is balanced for rotation and method of manufacturing same A driveshaft assembly is balanced for rotation during use by initially disposing an annular band about a portion thereof. The band is then secured to the driveshaft assembly, such as by welding, adhesives, frictional engagement, and the like. After the band is secur... | 08/10/2004 |
| 6758623 | High axial stiffness swivel joint A swivel joint according to the present invention includes first and second base members. A spider includes first and second arcuate surfaces which form joints with the first and second base members, respectively. Furthermore, the spider includes first and second pi... | 07/06/2004 |
| 6623364 | Tunable slip yoke damper assembly The damper assembly, in accordance with the teachings of the present invention, can be tuned to different frequency to dampen the vibrations of the driveline assembly. The damper assembly comprises an outer housing, an inner housing and a recess defined b... | 09/23/2003 |
| 6386982 | Cross member unit with centering element A cross member unit (9) has a cross member (10) with four arms (11). Two each are centered on axes (y, z) extending perpendicular relative to one another. The two arms (11) of one axis (y, z) are received in one yoke arm (19) of a joint yoke. Each arm (11... | 05/14/2002 |
| 3940948 | Universal joint shaft A universal joint shaft assembly is balanced by weights carried in rings of C-shaped cross section surrounding the assembly adjacent the universal joints and the weights are retained in balancing positions by locally deforming the outer peripheral leg or ... | 03/02/1976 |