Mark Twain (Samuel L. Clemens) received Patent No. 121,992 for "An Improvement in Adjustable and Detachable Straps for Garments." He later received two more patents: one for a self-pasting scrapbook and one for a game to help players remember important historical dates.
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| Number | Title | Issue Date |
| 4541785 | Self-priming centrifugal lubricating oil pump of an exhaust gas turbocharger In a self-priming centrifugal lubrication pump of an exhaust gas turbocharger, the pump rotor is fastened on the turbocharger shaft between two shaft bearings. A stationary oil ring channel is located on a larger diameter outside a rotating annulus of oil... | 09/17/1985 |
| 4541784 | Centrifugal lubricating oil pump of an exhaust gas turbocharger In a centrifugal lubrication system of an exhaust gas turbocharger, the pump rotor is provided with two laterally located hollow spaces and is fastened on the turbocharger shaft between two shaft bearings. The shaft bearings are each located between an oi... | 09/17/1985 |
| 4541736 | Centrifugal oil pump flow proportioning and cooling system A system for cooling and lubricating the drive motor of a centrifuge. The shaft of the motor includes an internal passage with an inlet having a size and taper sufficient to provide the desired rate of cooling oil flow through the motor. A lower bearing p... | 09/17/1985 |
| 4400040 | Tapered roller bearing with improved lubricating means To enable a single row tapered roller bearing to receive adequate lubrication at critical surface areas while operating at moderate to high speeds, the thrust rib on the cone of the bearing is fitted with a lubricating ring that in combination with the ri... | 08/23/1983 |
| 4384749 | Reliability roller bearing An improved reliability roller bearing having an outer ring; inner ring made up of three separable elements, that is, two guide rails and an inner raceway; a plurality of rollers interposed between the inner ring and the outer ring and a cage for supporti... | 05/24/1983 |
| 4365851 | Lubricant recirculation system for the bearing of a rotating shaft In order to prevent the occurrence of friction and attendant wear of the device for returning the lubricant from a porous body forming a lubricant reservoir to a bearing surface, a circumferential slot is formed bounded on one side by a helically grooved ... | 12/28/1982 |
| 4353605 | Roller bearing of the type having a sealing ring capable of forcibly circulating the lubricant In a roller bearing comprising an outer ring which has an inwardly bent annular flange, a sealing ring is loosely interposed the inner circumference of the flange and a shaft with a suitable clearance. An element(s) for imparting a forced rotation to the ... | 10/12/1982 |
| 4342489 | Bearing lubricating injector A bearing lubricant injector comprising a first ring member secured to a shaft which is rotatably supported by a bearing adjacent the first ring member. A second ring member is secured to the first ring member by a plurality circumferentially spaced stanc... | 08/03/1982 |
| 4323289 | Roller bearing having a forcible lubrication function A roller bearing having a forcible lubrication function comprises an outer race provided with a radial rib directed inwardly. The bearing has a cage provided with a circular ring portion situated axially outwardly of the rib of the outer race to overlap t... | 04/06/1982 |
| 4265496 | Apparatus for long-term bearing lubrication In order to improve the lubrication of relatively moving parts of machinery, in particular of bearings carrying rotating shafts, there is provided a lubricant reservoir adjacent to the bearing in which a movable transport member is located. The transport ... | 05/05/1981 |
| 4240679 | Free oil control in a gyro bearing design An antifriction bearing having a ball bearing retainer positioned between an outer race and an inner race. A plurality of slidable wedges of the bearing conforming to the dimensions of the raceways are mounted in slots in the periphery of the retainer. In... | 12/23/1980 |
| 4230379 | Antifriction bearing construction A roller bearing construction is provided for use between a crank-shaft and a connecting rod wherein the bearing assembly has lubricating oil sealed therein. In such application, centrifical force causes oil to move in a circular pattern tending to take a... | 10/28/1980 |
| 4186975 | Bearing seal and lubricating device A bearing seal for the outer and inner blade angle bearings of a rotor hub of a rotary wing aircraft comprises a lubricating oil chamber interconnecting the inner and outer bearings and extending coaxially therebetween. The bearings are provided with seal... | 02/05/1980 |
| 4181379 | Bearing structure lubricant feed system The invention provides a bearing structure with a lubricant circulation that does not depend on gravity. An absorbent lubricant reservoir contacts a conical shaft portion so as to convey lubricant from the reservoir to a ball or like bearing. Lubricant pa... | 01/01/1980 |
| 4097095 | Permanently lubricated bearing cartridge The cartridge comprises an anti-friction bearing positioned between rotating seals. At one end of the bearing the outer race makes rotary sealing contact with rim of an annular sealing disk of softer material than the bearing race. At the other end of the... | 06/27/1978 |
| 3951476 | Centrifugally flow controlled lubricated bearing A dynamic bearing lubricant reservoir for permitting a continuous and centrifugally metered flow of lubricant to the active part of the bearing only when the bearing is in the dynamic state i.e. operating, for extending the life of the bearing without aff... | 04/20/1976 |