"Rail travel at high speeds is not possible because passengers, unable to breathe, would die of asphyxia."
Dionysius Lardner, Professor of Natural Philosophy and Astronomy at University College, London ; 1830
Make the Most of Our Site
See this month's Top Inventors and Most Cited Patents.
Stay on top of the latest innovations by subscribing to an RSS feed.
Registered users: Manage your profile.
| Number | Title | Issue Date |
| 8042271 | Roller for transferring labels and related method An aspirating roller (1) for transferring labels, comprising at least a pair of pads (20;21) projecting relative to a lateral surface (1a) of the roller (1). The roller (1) is characterised in that at least a portion of the ... | 10/25/2011 |
| 7963037 | Flexible roller assembly A compliant roller assembly comprising an elastomeric tube for rolling along a surface, which tube is inherently compliant to irregularities in the surface. Within the tube but smaller than the inner diameter thereof is a core apparatus comprising a non-rotating mou... | 06/21/2011 |
| 7669331 | Roll and method for the manufacture of such a roll A calender roll, which was already in use and has a metallic core with engaged textile material sheets, can be worked for a new use. In the surface of the sheets are cut grooves, to which is subsequently applied a layer structure of synthetic resin-impregnated fibro... | 03/02/2010 |
| 7654001 | Method of manufacturing a paint roller support Embodiments of a method for manufacturing a paint roller support are disclosed. According to one embodiment, a method of manufacturing a paint roller support comprises placing first and second bearings on an elongated shaft at spaced apart locations such that the be... | 02/02/2010 |
| 7594329 | Heat insulation roller and manufacturing method thereof A heat insulation roller of an image forming apparatus of the present invention arranges hollow pipes between a core roller and an outer peripheral roller and obtains a high heat insulating effect though it is light in weight and inexpensive. Further, the core rolle... | 09/29/2009 |
| 7399254 | Infinitely variable transmission An infinitely variable transmission comprising a pair of rotary, generally conical, torque-transmitting members, each being mounted for rotation on its geometric axis, the angularity of the axes, one with respect to the other, being variable, the outer surfaces of e... | 07/15/2008 |
| 7325289 | High-performance ball and socket joint with low torques A process is provided for manufacturing a ball and socket joint that has a ball pivot (2) that is composed of a pivot pin (3) with an essentially spherical ball head (4) arranged or made integrally in one piece on one side. A bearing shell (5) i... | 02/05/2008 |
| 7283765 | Developing device, process cartridge, and image forming apparatus having developing-roller scraping member A developing device includes: a developing roller; a magnet provided in the roller and having a plurality of local maximum magnetic flux density positions on the peripheral surface of the magnet; a developing container supporting the roller; a seal member for preven... | 10/16/2007 |
| 7266326 | Process cartridge remanufacturing method A process cartridge remanufacturing method including: detaching first and second covers, at one and the other longitudinal ends of a process cartridge, from drum and developing frames; detaching a drum supporting member from the drum frame; separating the developing... | 09/04/2007 |
| 7206534 | Process cartridge, developing cartridge and gripping part therefor A process cartridge is detachably mountable to a main assembly of an electrophotographic image forming apparatus. The cartridge includes a frame; an electrophotographic photosensitive drum; a developing device for developing an electrostatic latent image formed on t... | 04/17/2007 |
| 7200935 | Work roll Improved work roll, particularly for use in closed gap rolling, has a composite structure comprising a cylindrical outer layer (14) made of steel, and providing the work surface of the roll, separated from a steel core (12) by an intermediate layer ( | 04/10/2007 |
| 7111539 | Veneer clipper anvil roll jacket and related methodology Wear-replaceable resilient cover structure, or jacket, for the known-diameter cylindrical surface of an elongate, known-length anvil roll in a veneer clipper. The cover structure includes an elongate, internal, tubular, cylindrical armature having inside and outside... | 09/26/2006 |
| 7110703 | Developing device, process cartridge and image forming apparatus A developing apparatus for an electrophotographic image forming apparatus, the developing apparatus includes a developing means for developing an electrostatic latent image formed on an electrophotographic photosensitive member; a developer accommodating container f... | 09/19/2006 |
| 6962039 | Lawn striping assembly The lawn striping assembly (10, 110) utilizes a C-shaped channel member having a plurality of attachment positions (22, 122). A pair of brackets (46) attach a roller apparatus (16) to the frame (302) of a lawn mower (114). T... | 11/08/2005 |
| 6708912 | Roll retainer and fiber chopper A chopper for chopping continuous items like fiber, fiber strand, yarn, string, wire, tape or ribbon, etc. which enters the chopper in unwound form at a high linear speed is disclosed having improvements that permit the chopper to tilt to change the angle of dischar... | 03/23/2004 |
| 6641512 | Idler roll bearing assembly An assembled idler roll having an outer shell and end bearing assemblies. The bearing assemblies each have an outer race and an inner race. The inner race is press fitted onto a roller shaft to an initial position which is spaced inwardly from a final des... | 11/04/2003 |
| 6631544 | Method for installing end member to hollow shaft member To develop a method for installing an end member to a hollow shaft member for an office equipment in which a high degree of coaxiality and a high degree of vertical state can be attained, its manufacturing stages are simple and they can be realized under ... | 10/14/2003 |
| 6589145 | Roll and calender Roll that includes a roll axle, a roll jacket, and a bearing ring positioned to rotatably support the roll jacket, and calender that includes the roll. The bearing ring is non-rotatable but is radially movable relative to the roll axle. A locking device i... | 07/08/2003 |
| 6484402 | Rollers or cylinders with a metallic foam core Rollers and cylinders that are useable in rotary printing presses are made using hollow tubular casing having metallic foam cores. The casings and cores are made separately. The cores are then placed inside the casing and the two are secured together in a... | 11/26/2002 |
| 6440048 | Low cost fuser rollers A fixing apparatus for electrostatographic reproduction or digital printing comprising: (a) a core (b) a gudgeon friction welded to said core, the gudgeon consisting of through slots or holes in a shoulder of said gudgeon.... | 08/27/2002 |
| 6401363 | Drum assembly for washing and drying machines and method for making it The present invention relates to an improved drum assembly for washing and drying machines, in which the section of the wedge elements (8) facing the drum ring (3) and provided for engaging with the latter is formed, before the drum assembling, with an ed... | 06/11/2002 |
| 6398701 | Cylinder for a rotary press A cylinder for a rotary printing press can be subdivided into a plurality of sections in a first operational mode. In a second operational mode, the cylinder has a functionally continuous outer surface.... | 06/04/2002 |
| 6385849 | Idler roll bearing assembly A method of assembling an idler roll having an outer shell and end bearing assemblies. The bearing assemblies each have an outer race and an inner race. The inner race is press fitted onto a roller shaft to an initial position which is spaced inwardly fro... | 05/14/2002 |
| 6293014 | Method for making a fixation roller The present invention relates to an improvement in a fixation roll consisting of several heat pipes embedded in the thick wall of the hollow cylindrical core in the axial direction, and features the fact that each of the heat pipes consisting of a copper ... | 09/25/2001 |
| 6119343 | Process for manufacturing a pressure roll A method of manufacturing a pressure roll including a cylindrical core member having a center shaft, an intermediate layer surrounding the core member and formed from a flexible material, and an outermost layer surrounding the intermediate layer and forme... | 09/19/2000 |
| 6018870 | Sectional construction for axially long roll A large diameter and axially long cylindrical roll is fabricated from axially short cylindrical roll sections to provide a roll with circumferentially spaced, parallel and axially extending steam passages through the outer cylindrical wall of the roll. Th... | 02/01/2000 |
| 5909917 | Method for providing a roll mantle of a tubular roll for a paper machine or equivalent with glide bearings A method for fitting a roll mantle of a tubular roll used in a paper machine or equivalent with glide bearings and a tubular roll. The roll mantle is supported on a stationary roll axle by hydraulic glide bearing elements acting upon the roll mantle and/o... | 06/08/1999 |
| 5896662 | Multi-layer structure roller and a method for producing the same A multi-layer structure roller is a muti-layer structure composed of a tubular-shaped metal-made outer cylinder section located at the outer-most position, a tubular-shaped metal-made middle cylinder section located on the inside of the outer cylinder sec... | 04/27/1999 |
| 5862591 | Method for manufacturing paint rollers Paint rollers are formed in a continuous process. A plastic material is delivered from pellets or powder to an extruder and then, directly from the extruder to an internally cooled mandrel. The heat of the extrusion process provides the sealing temperatur... | 01/26/1999 |
| 5806183 | Manufacturing method for office automation equipment hollow shaft member A hollow shaft member having an end member (end piece) joined to either of its ends for installation in office automation equipment, in which, an end member of soft metal is inserted in the inner wall end of a hollow shaft member formed of hard metal and,... | 09/15/1998 |
| 5802443 | Reinforced thin cylindrical structure, image fixing device using this cylindrical structure, and method for manufacturing reinforced thin cylindrical structure A small-sized high performance fixing device is realized by using a thin cylindrical structure having a structure which prevents loss of contact between inner reinforcing members and the thin cylindrical structure and prevents collapsing in the circumfere... | 09/01/1998 |
| 5797186 | Method for manufacturability of a low cost printing drum A method for manufacturing an imaging drum for use in applying ink to the imaging drum as the drum rotates. The present method possesses utility in that previously unsuitable low cost materials for use in creating an imaging drum characterized by rigorous... | 08/25/1998 |
| 5675893 | Method for fastening an engaging member to a cylinder A method for forming a cylindrical structure by fastening an engaging member to an open end of a cylinder, including the steps of preparing an inner surface at the open end of the cylinder to provide the cylinder with a reduced thickness, providing an eng... | 10/14/1997 |
| 5564688 | Stripper roller manufacturing method A method for forming a stripper roller is described where, instead of a symmetrical, cylindrical paper-feed roller, an asymmetrical feed roller (or stripper roller) is used to separate a bottommost sheet from a stack of sheets. Eccentric portions of the f... | 10/15/1996 |
| 5553380 | Mower head roller assembly A roller assembly (12) for use with a mower head (10) is disclosed. The roller assembly includes a roller body (24) to which a shaft (26) is attached such that the body and shaft rotate in unison. The shaft has a pair of opposed ends, each of which is cou... | 09/10/1996 |
| 5469619 | Tubular core assembly having inside-diameter reducing end members secured by mechanical interlocking member A tubular core assembly for winding or unwinding sheet material, such as newsprint or Rotogravure Print, wherein the opposed ends of an elongate cylindrical core are provided with inside diameter-reducing annular core insert members. The inside diameter-r... | 11/28/1995 |
| 5401232 | Rolls and cylinders for use in paper machines A method for manufacturing a cylindrical mantle of rolls or cylinders of a paper machine out of a corrosion-proof metal or alloy material, particularly refined steel, in which oblong plate blanks are cut to a length equal to the total length of the roll m... | 03/28/1995 |
| 5370596 | Ceramic and metal roll assembly A joint between an end of a ceramic roll and a metal ferrule compensates for the differences in the thermal expansion properties of the joined materials. A plurality of thermodeformable bimetal elements are positioned in the space between the roll end and... | 12/06/1994 |
| 5177867 | Method for fitting a roll-ring to a roll axle, and a roll-ring mount for carrying out the method A method for securing a roll-ring onto the end of a roll-axle, comprising prefitting a roll-ring onto a roll-ring mount, and securing the mount with the roll-ring fitted thereon, onto the end of a roll axle. Securement is effected by passing one single sc... | 01/12/1993 |
| 5167067 | Method of making a roll with a composite roll ring of cemented carbide and cast iron The present invention discloses a roll for hot and/or cold rolling. The rolling track comprises one or several cemented carbide rings, which are cast into a casing made by an iron alloy. The cast alloy comprises a materially graphitic cast iron, which aft... | 12/01/1992 |