Did You Know...
...Chester Carlson was a patent agent who tired of having to make multiple copies of patent applications using the only duplication method available at the time: carbon paper. In 1959 he came up with a new copying system and took it to IBM for evaluation. The "experts" at IBM determined potential sales to be only 5,000 units because people wouldn't want to use a bulky machine when they had carbon paper. Carlson's invention was the xerography process, the company founded on the system is Xerox.
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| Number | Title | Issue Date |
| 6857187 | Method of manufacturing a measuring wheel for wireline operations A method of manufacturing a measuring wheel for wireline operations includes the step of machining a metal wheel to achieve a first outer radius. The metal wheel is positioned within a ceramic ring having an inner radius that exceeds the first outer radius by an amo... | 02/22/2005 |
| 6692392 | Lagging system for conveyor belt pulleys A lagging system for conveyor belt pulleys is provided that allows for significant flexibility in attaching lagging members to the face of the pulleys while also providing improved distribution of the lagging material on the pulley face, and doing this wh... | 02/17/2004 |
| 6672983 | Power transmission drive system A drive system comprising a driver pulley, a driven pulley (22), and a belt (10). The belt (10) has a pulley engaging surface (16) comprised of a plurality of transversely extending self-tracking teeth (18). The driven pulley (22) has a non-grooved, crown... | 01/06/2004 |
| 6540629 | Flexible idler An idler having a flexible member. The flexible member comprises a rubber or elastomeric material. The flexible member also defines a gas chamber. The spring rate of the flexible member is a function of the flexible material and the size of and pressure i... | 04/01/2003 |
| 6401871 | Tension member for an elevator A tension member for an elevator system has an aspect ratio of greater than one, where aspect ratio is defined as the ratio of tension member width w to thickness t (w/t). The increase in aspect ratio results in a reduction in the maximum rope pressure an... | 06/11/2002 |
| 6371448 | Rope drive element for driving synthetic fiber ropes A traction sheave for driving synthetic fiber ropes, preferably of an elevator installation, ensures a consistently good selected tractive capacity that is largely independent of external influences which reduce friction. At least part of the rope running... | 04/16/2002 |
| 6168544 | Pulley lagging A lagging material for application to the surface of a pulley, said material being integrally formed in elongate strip form and having an upper surface including a plurality of discrete nodules extending therefrom and arranged regularly or randomly accord... | 01/02/2001 |
| 6162141 | Tensioner for a mechanical power transmission, a transmission including such a tensioner, and a motor vehicle engine including such a transmission A belt tensioner for a mechanical power transmission such as in a motor vehicle engine. The belt tensioner includes a wheel for bearing against the belt and a resilient return device for ensuring that the wheel bears against the belt with pre-stress. The ... | 12/19/2000 |
| 6106422 | Power transmission member and material thereof containing carbon fiber, aromatic polyamide fiber and graphite with phenol resin A power transmission member is constructed by molding a resin material obtained by mixing a carbon fiber, an aromatic polyamide fiber, graphite, and talc with phenol resin. The preferred contents of the carbon fiber, the aromatic polyamide fiber, the grap... | 08/22/2000 |
| 6099426 | Belt pulley A resin-made belt pulley (p) including a rim (2) over which a belt is engaged and a web (3) molded together with the rim and mounted on a rotating shaft, (1) extending through a position radially inside of the pulley, characterized in that a mounting posi... | 08/08/2000 |
| 6092639 | Driven wheel passenger conveyor A driven terminal for a passenger conveyor for transferring passenger or luggage. The driven terminal according to the present invention includes a pair of rotating plates mounted on both ends of a rotating shaft, an outer wheel forcibly contacted with th... | 07/25/2000 |
| 6053832 | Belt driving device having a belt shift correcting member A belt driving device in which an endless belt is spanned around a drive pulley and a driven pulley and the belt is driven by rotation of the drive pulley includes a belt shift correcting member for correcting shifting of the endless belt. When the endles... | 04/25/2000 |
| 5931755 | Pulley made from composite material A pulley is provided which is capable of being used as an alternator pulley. The pulley has a central hub portion for connecting the pulley to a shaft and a belt engaging portion disposed radially outward from the central hub portion. The central hub port... | 08/03/1999 |
| 5800300 | Motion transfer device A device for exploring the transferring of motion from one body to another body which utilizes a motion transfer surface is presented. The device is a hollow structure for receiving an object which has a motion transfer surface on its exterior. The hollow... | 09/01/1998 |
| 5797819 | Resin pulley A resin pulley was made of a resin material wherein an inorganic fiber such as glass fiber, an inorganic powder such as silica powder, an organic fiber such as cotton cloth fiber, and an elastomer are blended in a phenol resin. Each content of the inorgan... | 08/25/1998 |
| 5720685 | Combined plastic pulley and pump drive A plastic pulley and stub shaft are integrally formed with one another and used as a unitary component in the drive train of a clothes washing machine. In the washing machine, an electric motor is used to drive both an agitator mechanism and a water pump ... | 02/24/1998 |
| 5651745 | Motion transfer device An device and a method for exploring the transferring of motion from one body to another body which utilizes motion transfer surfaces is presented. Further, a kit for recycling bottles caps into a construction toy where the caps are typically formed of pl... | 07/29/1997 |
| 5593366 | Beaded guide roller To reduce the generation of noise in a belt drive for auxiliary units in an internal combustion engine, a guide roller for the belt has an approximately cylindrical surface formed with a bead which extends along the surface in a direction oblique to the s... | 01/14/1997 |
| 5515790 | Rope traction device A rope traction device includes a sheave having an annular rope receiving groove and being driven and rotated with a traction rope received in the rope receiving groove to cause the traction rope to be wound on the sheave and the rope traction device ther... | 05/14/1996 |
| 5368525 | Resin formed pulley A pulley formed of resin having improved strength. The pulley includes a central body formed from a synthetic resin material. The main body has a belt-retaining portion along the outer peripheral surface thereof. A boss made of a metallic cylindrical body... | 11/29/1994 |
| 5284457 | Belt guide pulley There is provided a clam shell shaped belt guide pulley having first and second curved halves which are hinged together. Each pulley half has curved inner and outer surfaces. The pulley is adapted to be placed on a large diameter shaft without the need to... | 02/08/1994 |
| 5281189 | Crowned pulley for a belt conveyor An improved construction for a crowned and lagged pulley for a belt conveyor includes a roller tube having a central portion and two outer end portions. A pair of circumferentially extending grooves are formed in the outer surface of the roller tube betwe... | 01/25/1994 |
| 5244439 | Roller chain idler replacement A tightener roller 40 replaces idler sprockets in roller chain 20 applications to decrease noise and reduce wear on the system components. The roller chain 20 wears parallel alignment grooves 50, 52 in the resilient material 44 of the tightener 40.... | 09/14/1993 |
| 5222919 | All plastic idler pulley assembly A three-piece, all-plastic idler pulley assembly. There is a first unitary bell end portion having a first circular, inward-facing face with a concentrically-disposed, cylindrical shaft extending outward therefrom and perpendicular thereto. The cylindrica... | 06/29/1993 |
| 5120279 | Structural bearing element A plastic element with an outer surface defining a running surface, particularly for a belt or chain, arranged at the outer circumference of a metallic insert designed as a rolling or sliding bearing, consisting of a polymeric plastic material hardened af... | 06/09/1992 |
| 5021034 | Pulley construction, drive system utilizing the same and methods of making the same A pulley construction, drive system utilizing the pulley construction and method of making the pulley construction are provided, the pulley construction being utilized with an endless drive belt and comprising a body member having a peripheral groove ther... | 06/04/1991 |
| 4929217 | Variable speed pulley A variable speed pulley adapted to be mounted on a shaft has a resilient member with an exterior surface adapted to support a belt thereon. The compression of the resilient member is controlled to adjust the location of the exterior surface of the resilie... | 05/29/1990 |
| 4906223 | Pulley construction, drive system utilizing the same and methods of making the same A pulley construction, drive system utilizing the pulley construction and method of making the pulley construction are provided, the pulley construction being utilized with an endless drive belt and comprising a body member having a peripheral groove ther... | 03/06/1990 |
| 4838838 | Belt driving pulley having a roughened surface to reduce noise Undesirable noise developing from relative sliding between a belt and a pulley when the traction between the belt and the pulley is loosened to halt the belt from being driven by the pulley is eliminated or alleviated by roughening the inner surface of th... | 06/13/1989 |
| 4838841 | Pulley and hub assembly Disclosed is a pulley and bearing assembly for attachment to a cooling fan clutch of an internal combustion engine. The pulley is of polymeric construction, having a peripheral rim and an axial end integral therewith, the other end being open. It defines ... | 06/13/1989 |
| 4820246 | Pulley construction, drive system utilizing the same and methods of making the same A pulley construction, drive system utilizing the pulley construction and method of making the pulley construction are provided, the pulley construction being utilized with an endless drive belt and comprising a body member having a peripheral groove ther... | 04/11/1989 |
| 4781661 | Boss mounted, non-metallic pulley A boss mounted, non-metallic pulley comprising a base member with a central aperture therein and an annular pulley track formed on an outer periphery of the base member which is axially offset with respect to and perpendicular to the hub, and a boss carri... | 11/01/1988 |
| 4729755 | Elevator for delicate articles An elevator comprising a rotating cylinder having a resilient surface, and an endless belt that engages a circumferential segment of the cylinder. Articles are captured between the resilient surface and the belt as they come into contact and are released ... | 03/08/1988 |
| 4668209 | Plastic-surrounded bearing In a plastic-surrounded bearing in which a pulley made of plastic wider than the width of the outer race of the bearing and provided with extended portions on the opposite sides of the outer race is integrally coupled to the outer race of the bearing by i... | 05/26/1987 |
| 4652474 | Tubular article of polymeric material A tubular article of polymeric material which has two coaxial tubular sections extending in opposite axial directions and an intermediate section integral with the tubular sections. One of the tubular sections snugly surrounds a metallic sleeve which is p... | 03/24/1987 |
| 4571226 | Moldable plastic pulley A moldable, plastic idler pulley is formed of two halves, each having a matching central hub and a radially outwardly extending web with radially disposed strengthening ribs on the outside thereof. The inner side of each central hub has a moldable stepped... | 02/18/1986 |
| 4548592 | Pulley construction A pulley, composite in nature, including a fabricated wheel defining a rim channel into which a ring is positioned. The ring is rigidly held within the channel by tabs and interlocking arrangements. The ring is designed to include any one of a number of p... | 10/22/1985 |
| 4490128 | Bearing-mounted plastic wheel An annular wheel of plastic is rotatably mounted on a central bearing. The wheel has a generally H-shaped cross-section, with radially outward and radially inward arms joined by a radial crossbar. An array of stiffening ribs at various circumferential loc... | 12/25/1984 |
| 4484902 | Drive pulley in particular for the distance recorder of a bicycle The pulley comprises an annular portion which extends radially beyond a grooved ring around which a belt for driving the recorder extends. In order to permit fixing this pulley to a wheel hub flange of variable diameter by means of nose portions, each nos... | 11/27/1984 |
| 4482340 | Low-friction thin-hub plastic multi-part sheave A low-friction thin-hub plastic multi-part sheave for handling wire, has two joined disc-like members with conical rim portions which together form a V-groove for the wire. The members have apertured central hub portions provided with facing shoulders tha... | 11/13/1984 |
