In 1608, Dutch eyeglass maker Hans Lipperhey filed the first patent for a working telescope. The patent was denied.
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| Number | Title | Issue Date |
| 7337764 | Pressure balanced bearing A method of pressure balancing across a bearing adjacent to a pressure differential is described. The method primarily includes providing a bypass port around the bearing for allowing a fluid flow from a first pressure side to a second pressure side. A throttle body... | 03/04/2008 |
| 7299909 | Taper sleeve for conveyor roller A taper sleeve for a conveyor roller used in a curved conveyor section has a taper wall with internal radial ribs which mate with the surface of a cylindrical roller core. The inner edges of the ribs preferably have an interference fit with the core surface. ... | 11/27/2007 |
| 7293919 | Bearing device A bearing device mountable on a smaller bearing and allowing to be automatically lubricated for a long period, comprising an inner ring and an outer ring rotated relative to each other, cages and rolling elements held by the cages which are disposed in an annular sp... | 11/13/2007 |
| 7220058 | Bearing unit for the hub of a vehicle wheel equipped with a tire inflating system A bearing unit comprises a radially outer stationary race (1) and a pair of radially inner rotatable half-races (2a, 2b). An intermediate annular chamber (8) is defined between the outer race (1) and the inner half-ra... | 05/22/2007 |
| 7178987 | Preloaded duplex ball bearing design A bearing assembly comprising a centrifugal debris trap for removing contamination debris from lubrication fluid prior to lubrication of the bearing assembly components is provided. The centrifugal debris trap comprises an annular groove on an inner race such that w... | 02/20/2007 |
| 7118321 | Air cooled bearing An air cooled bearing comprising means for imparting a swirl component to the cooling air flowing toward the bearing. By imparting a swirl component to the cooling air the amount of work imparted on the cooling air by the rotating cage and rolling elements of the be... | 10/10/2006 |
| 7086784 | Bearing unit for the hub of a vehicle wheel equipped with a tire inflating system A bearing unit comprises a radially outer stationary race (1) and a pair of radially inner rotatable half-races (2a, 2b). Au intermediate annular chamber (8) is defined between the outer race (1) and the inner half-ra... | 08/08/2006 |
| 7070334 | Ball Bearing A retainer for a ball bearing formed in a generally annular shape and having a plurality of pockets arranged in a circumferential direction, respectively, to rollably hold a plurality of balls along a pitch circle, respectively, the pockets each having an inner peri... | 07/04/2006 |
| 7039976 | Braking control system for a washing machine An inner tub of a washing machine is rapidly braked during a portion of a deceleration phase following an extraction phase of an overall spin cycle. A controller establishes the braking operation over a critical speed band or resonant frequency zone during which exc... | 05/09/2006 |
| 6932350 | Windback labyrinth seal that accommodates a pressure differential for rotating shafts A segmented labyrinth seal (10) having a windback configuration formed around a rotatable shaft for preventing leakage of oil from a bearing housing having a first face (22) and a second face (23). An exterior cylindrical surface (19) and... | 08/23/2005 |
| 6913438 | Pump lubrication system including an external reservoir A circulating lubrication system for a centrifugal pump, or other rotating equipment utilizing an oil sump, is disclosed. The lubrication system includes an external reservoir located distant from the main lubrication chamber, so that lubricating fluid from the main... | 07/05/2005 |
| 6854892 | Baffled centrifugal lubrication spacer The present invention relates to a spacer arrangement used in a duplex bearing system. The spacer arrangement has a lubricant chamber, a first spacer element within the lubricant chamber having a centrifugal ramp, and a second spacer element within the lubricant cha... | 02/15/2005 |
| 6840678 | Deflection adjustment roll Deflection adjustment roll and process of operating deflection adjustment roll. Deflection adjustment roll includes a yoke, antifriction bearings, which are lubricated with a liquid, a roll jacket which is pivotably coupled to the yoke via the antifriction bearings,... | 01/11/2005 |
| 6733181 | Bearing unit A bearing unit is provided, wherein the outer peripheral surface of the inner race extends outward in the axial direction beyond the end surface of the outer race, and is formed such that the diameter of the outer peripheral surface of the inner race increases in th... | 05/11/2004 |
| 6578670 | Drive unit for centrifuge rotor of a centrifugal separator The invention refers to a drive unit (1) for a centrifuge rotor (2) of a centrifugal separator. The drive unit (1) includes a drive shaft (3), which is arranged to support said centrifuge rotor (2) and is rotatably journalled around an axis (z) of rotatio... | 06/17/2003 |
| 6443624 | High speed angular contact ball bearing An angular contact ball bearing has races formed from a case-carburized or carbonitrided steel, preferably a stainless steel, that withstands high forces and high temperatures. The bearing has relatively low osculation ratios to reduce the generation of h... | 09/03/2002 |
| 6443623 | Lubrication system for rolling bearing A lubrication system for a rolling bearing comprised of, an inner ring fitted on a shaft rotating at high speed inside a housing, on the outer peripheral surface of which an inner ring raceway is formed; an outer ring fitted into the housing, on the inner... | 09/03/2002 |
| 5938347 | Bearing lubrication assembly In a bearing lubrication delivery mechanism, a primary member is supported for rotation about a first axis and defines a bore having a second axis approximately parallel to and radially offset from the first axis. A sleeve is positioned in the bore and at... | 08/17/1999 |
| 5735676 | Method and device for the autolubrication of the rolling bearings of turbomachines A method and device for the autolubrication of the rolling bearings of turbomachines. The method and device utilize pressure differences present in the turbomachine for sucking in the lubricating oil. Moreover, a pressure is built up in centrifuges arrang... | 04/07/1998 |
| 5724934 | Modular rotary engine, and oil slinger and race seal subassemblies thereof A combustion engine comprising a lubricated bearing mountable on the shaft of the engine, and a race/seal bearing plug engagable therewith and engagable with a housing member of the engine. The race/seal bearing plug comprises lubricant passage therein di... | 03/10/1998 |
| 5413209 | Live roller conveyor pulley for improving the training of a conveyor belt A motorized conveyor roller is provided which includes a mechanism for rotatably mounting a roller tube in a conveyor frame, the roller tube having a length, an inner diameter and a hollow interior. The roller tube has disposed within the hollow interior,... | 05/09/1995 |
| 5382099 | Bearing assembly comprising a radial and axial bearing A bearing unit consists of a radial bearing 1 and an axial bearing 2, the outer ring 3 of the radial bearing 1 being extended at one end in the axial direction to hold the axial bearing 2. So that the bearing unit is able to absorb large radial and axial force... | 01/17/1995 |
| 5207291 | Barrier system for the lubricating oil for the bearings of a centrifugal compressor with labyrinth seals installed in a confined environment A barrier system for the lubricating oil for the bearings of a centrifugal compressor with labyrinth seals installed in a confined environment, consisting of a disc concentrically rigid with the rotating compressor shaft in the chamber facing the bearing ... | 05/04/1993 |
| 5199798 | Bearing with tapered lands A bearing assembly having coaxial inner and outer bearing races, a plurality of rolling elements which ride in respective raceways in the inner and outer races, and annular sealing discs interposed between the inner and outer races for defining annular lu... | 04/06/1993 |
| 5150975 | Compact self-lubricating bearing system The bearing lubricating system comprises a casing having a bore which defines a reservoir and a well sized to receive a sufficient volume of a suitable liquid lubricant. A return passage in the casing allows fluid flow from the well to the reservoir. A sh... | 09/29/1992 |
| 5116145 | Roller bearing containing a lubrication pump Roller bearing for a shaft or similar, containing an inner race and outer race between which one or more rows of rollers are mounted and whereby lubricant can be applied between the rollers and races, characterized by the fact that the roller bearing (3) ... | 05/26/1992 |
| 5102240 | Mounting mechanism for a member adapted to rotate at high speed around a vertical axis A rotatable member (3) has on its outside surface a contoured surface portion (15) which widens conically upwards in diameter, is contiguous with a lubricant storage chamber (14) and extends axially to near a bearing (11) by which the rotatable member (3)... | 04/07/1992 |
| 5074408 | Bearing assembly for conveyors A bearing assembly for rotatably supporting a conveyor roller tube for a belt conveyor about a fixed shaft which includes a housing to which a roller tube is attached, an end cover positioned on the fixed shaft adjacent one side of the housing, and a bear... | 12/24/1991 |
| 5051007 | Lubrication of a centrifugal pump bearing Lubrication system for a centrifugal pump having a bearing mounted around a rotatable vertical shaft. The lubrication system includes a reservoir for holding a quantity of lubricant, structure for withdrawing lubricant from the reservoir, a stator, and a ... | 09/24/1991 |
| 4942944 | Screw pump for lubricating generator bearing Apparatus to lubricate generator bearings with an oil-air mist is disclosed. A screw pump, preferably an assembly of components comprising a ring, a teflon seal, a pump rotor and a hub is secured onto a rotor shaft of a generator for rotation therewith. T... | 07/24/1990 |
| 4940341 | Oil-metering cover for shaft bearings A shaft (3) having a central channel (8) supplies shaft bearings (5, 6, 7) with oil. The central channel leads to an oil exit opening (9) situated in the region of a shaft bearing (2). In order to be able to supply the shaft bearing (2) with oil in metere... | 07/10/1990 |
| 4915515 | Rotational bearing arrangement for high rotational speeds The horizontally mounted rotational bearing arrangement for high speeds of rotation is mounted in a casing in two radial rolling bearings. Each radial rolling bearing comprises rolling members guided by an associated cage, and further comprises a groove p... | 04/10/1990 |
| 4905794 | Lubricating device in turret type change-over device A lubricating device of a turret type change-over device wherein a plurality of rotating bodies are mounted on a rotatable turret table, comprising: a plurality of bearings adapted to rotate the rotating bodies with respect to the rotatable turret table; ... | 03/06/1990 |
| 4874069 | Roller clutch with improved lubrication Lubrication for a roller clutch cage of the type that is installed to a cam race that is in turn secured tightly to a mounting drum is improved by providing an internal oil passage in the cage that is open on one side. When the cam race is secured to the ... | 10/17/1989 |
| 4869641 | Compressor A compressor driven by a motor delivers air under pressure to a plurality of paint spray guns. An air circulation fan is incorporated with the motor to cool the apparatus during operation. The compressor shaft includes bearings on each end and the bearing... | 09/26/1989 |
| 4858427 | Secondary oil system for gas turbine engine A secondary oil system for a flight propulsion gas turbine engine includes an oil reservoir rotatable as a unit with a rotor shaft of the engine, means conducting a portion of the primary oil flow of the engine to the rotating reservoir, a discharge orifi... | 08/22/1989 |
| 4755103 | Flow machine with feed arrangement for lubricants A flow machine, especially a gas turbine equipped with means for separating an oil/air mixture and for returning centrifuged oil droplets to a circulation having oil consuming devices such as bearing places and with a vent line leading from the center tow... | 07/05/1988 |
| 4715303 | Lubricating device for sewing and embroidering machines A lubricating device for a revolving lock stitch shuttle of machines such as sewing and embroidering machines comprises a shuttle body which has a hub portion which surrounds its associated shuttle arbor and which lies adjacent a bearing mounting for the ... | 12/29/1987 |
| 4704039 | Roller bearing lubricating device A roller bearing lubricating device including a roller bearing for supporting a rotary shaft, a bearing housing for supporting the bearing, an oil tank provided in the housing for storing oil lubricating oil, a weir for forming an oil reservoir for dippin... | 11/03/1987 |
| 4655617 | Sealed rolling bearing with a flow reducing grease passage A sealed type rolling bearing includes an another race, an inner race, a plurality of rolling elements, at least one retainer therefor, and at least one seal plate. The bearing is sealed with grease seal, and grease in the bearing is prevented from flowin... | 04/07/1987 |