Did You Know...
...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 |
| 7549370 | Actuator means to accomplish a linear movement A regulating unit for accomplishing a linear movement includes a cylindrical frame part (1) having a cylinder part (11) and cylinder head (12), which define a piston space (131, 132), and a piston unit (2) to be moved by a pressuri... | 06/23/2009 |
| 7399382 | Device for cleaning a roll in a paper production plant A device for cleaning a roll in a paper production plant has a doctor blade assigned to the surface of the roll. The doctor blade is mounted such that it can be pivoted with respect to the roll by two bearing journals that are aligned parallel to the axis of the rol... | 07/15/2008 |
| 7325490 | Relief cylinder structure of a multinip calender A relief cylinder structure for guiding a roll in a multinip calender has a frame and an arm that is arranged to move linearly in relation to the frame. A quick-opening cylinder is placed inside the arm. In a fault situation, the relief cylinder causes the cylinder ... | 02/05/2008 |
| 7314191 | Two roll sugarcane crushing mill An improved two roll sugarcane crushing mill has two roll mill modules in tandem, each has a pair of main crushing rolls having a bottom roll and a top roll. The bottom and top rolls are rotatingly mounted in a pair of main frames and a pair of top beams at the two ... | 01/01/2008 |
| 7311039 | Method and arrangement for preventing vibrations in a multi-nip calender or calender array Vibration is prevented in a multi-nip calender (1) or an array of multi-nip calendars. Each calender has a lower roll (3; 40), an upper roll (3; 30) and two or more intermediate rolls. A fiber web is conveyed through the closed roll nips of the ... | 12/25/2007 |
| 7279042 | Wet coating improvement station The uniformity of a wet coating on a substrate is improved by contacting the coating at a first position with the wetted surfaces of periodic pick-and-place devices, and re-contacting the coating with such wetted surfaces at positions on the substrate that are diffe... | 10/09/2007 |
| 7188498 | Reconfigurable tools and/or dies, reconfigurable inserts for tools and/or dies, and methods of use A reconfigurable tool and/or die geometry and methods of use generally comprise forming at least a portion of a shape defining surface with a shape memory material. In response to an activation signal, the shape memory material changes geometry of the shape defining... | 03/13/2007 |
| 7024990 | Calender and an arrangement for fastening rolls of a calender A calender and an arrangement for mounting calender rolls, the calender comprising at least two calender nips (1, 2) formed by at least two stacked rolls (11–14). The rolls are have bearing housings (3–6) by means of which the rolls (11â€... | 04/11/2006 |
| 6971308 | Printing device for printing machines of various kind Printing device for printing machines of various kind, which is made in such a way that to permit to print paper pages and sheets of any size, with a number of copies larger than those attainable with the current printing machines and with high printing accuracies. ... | 12/06/2005 |
| 6908420 | Dimensionally stabilized roller body A roller body for a roller, for pressure-treating or temperature-treating or combined pressure- and temperature-treating a web-shaped medium, for example paper, includes a casting body made of an iron-based alloy comprising graphite lamellae. Particular regions of t... | 06/21/2005 |
| 6851356 | Calender and process for arranging rolls in a roll stack of a calender Calender with a roll stack and process for arranging rolls in a roll stack of a calender, the calender comprising two end rolls in a press plane and a plurality of middle rolls between the two end rolls. At least one of the middle rolls has an elastic surface and ha... | 02/08/2005 |
| 6848358 | Calender To present invention relates to a calender for calendering a moving web of paper or board, the calender comprising a top roll (1) and a bottom roll (1) and a bottom roll (2), both of the rolls being of the variable-crown type, at least one inter... | 02/01/2005 |
| 6705216 | Calender Calender including at least one roll stack having a plurality of rolls arranged to form at least one nip, a stand arrangement having a stand located at each axial end of the at least one roll stack, and antifriction bearings arranged to support the plurality of roll... | 03/16/2004 |
| 6698340 | Calender and process to treat a material web Calender and process for treating a web with a roll stack that includes a plurality of rolls having two end rolls and several intermediate rolls arranged between the two end rolls. The plurality of rolls are arranged such that adjacent rolls, including a ... | 03/02/2004 |
| 6668711 | Elastic roller, method for producing same device for smoothing paper and method for smoothing paper The present invention concerns an elastic roller for smoothing a paper web, wherein the roller has a hard metal core, an elastic matrix coating material thereon and an outer layer of memory metal, and is comprised especially of metal is described. The pre... | 12/30/2003 |
| 6612228 | Calender and method for rebuilding a calender A calender having a supporting frame and a set of rolls attached to vertical portions of the supporting frame so as to form a stack of rolls in which adjacent rolls placed one above another form calendering nips therebetween. The stack including a top rol... | 09/02/2003 |
| 6588332 | Roller group In a group of rolls for a calender for processing material webs, comprising at least two rolls each having a roll body made of a cast or forged iron material, at least one of the roll bodies consists of chilled cast iron or shell-chilled cast iron. One or... | 07/08/2003 |
| 6578473 | Calender with adjustable roll supports A supercalender has a top roll, a bottom roll, and a plurality of intermediate rolls. The intermediate rolls are mounted to support frames by pivot arms. The pivot radius defined by the arms is at least about 21/2 times the diameter of the largest interme... | 06/17/2003 |
| 6571695 | Article compacting device An apparatus for the compaction of articles, e.g., disposable metal cans or disposable plastic bottles, includes a pair of mutually counter-rotatable, interacting squeeze rollers, wherein the first roller has a fixed support and wherein the second roller ... | 06/03/2003 |
| 6419794 | Method and apparatus for damping contact oscillations of rotating rolls In a method and apparatus for damping contact oscillations of rotating rolls in a paper machine, but notably in a coater, the rolls are held endways in bearings. At least two rolls form a nip with each other. The damping is carried out actively and the ac... | 07/16/2002 |
| 6395211 | Method and calender for treating a sheet A calender for treatment of a web of a nonwoven textile V made of thermoplastic fibers. The calendar includes a heated embossing roller made of steel and a counter-roller that runs at the same circumference velocity. The local plastification in the nonwov... | 05/28/2002 |
| 6352022 | Web calendering method and apparatus Microgloss variations in and microgalvanizing of supercalendered webs of paper are significantly reduced without significant reduction in the super-calendered paper gloss by passing the supercalendered web through a heated soft extended nip calender.... | 03/05/2002 |
| 6248215 | Calender and method for treating material webs in the calender Calender and method for treating a material web. The calender includes a plurality of rolls in which each roll has a rotational axis. The rotational axes of the plurality of rolls are arranged to be substantially located in a press plane, and a plurality ... | 06/19/2001 |
| 6171629 | Methods and apparatus for joining dough blocks An apparatus for joining dough blocks to form a continuous dough sheet. The dough blocks are cut from a dough mass and drop into a space between first and second groups of rollers. The first and second groups of rollers include horizontally-paired rollers... | 01/09/2001 |
| 6085646 | Multiple nip calender for a paper making machine A four nip calender apparatus mounted on a single frame. The apparatus includes a first vertical calender mounted on the frame wherein the web passes through a first nip formed by a first calender roll and a second calender roll. The apparatus also includ... | 07/11/2000 |
| 5988055 | Calendar for paper and similar web material Calender for a material web that includes a roll stack having at least four rolls that includes an upper and a lower roll, a frame, and bearing blocks associated with the at least four rolls. The bearing blocks are movably coupled to the frame. The calend... | 11/23/1999 |
| 5704285 | Calender for the treatment of a paper web A calender for the treatment of a paper web has at least one roller stack made of "hard" and "soft" rollers. The soft rollers have a covering made of a plastic whose recovery, after deformation, is such that the depth of the remaining deformation, after a... | 01/06/1998 |
| 5655442 | Calender for the treatment of a paper web A calender having one stack of rollers has a working nip formed between a hard roller and a soft roller. A changeover nip is formed between adjacent soft rollers. The changeover nip is arranged approximately in the center of the roller stack. The cumulati... | 08/12/1997 |
| 5501145 | Multi-purpose calendar A multi-purpose calender having latterly spaced frames mounting four superposed calender rolls with their axes of rotation extending horizontally and three rolls offset relative to a vertical plane. Two outer rolls are provided with two coactive inner rol... | 03/26/1996 |
| 5469784 | Calender assembly including an additional roll displaced into the path of the web of material In a calender assembly for treating a web of material (1) in a nip (4) formed by a pair of press rolls (2, 3), at least one roll (3) is heated. In front of and/or behind the nip (4) there is at least one additional roll (8, 9, 14) which can be displaced i... | 11/28/1995 |
| 5404811 | Roll press for the treatment of a traveling web with connection between the press units Two press units have axes which lie in a pressing plane which is inclined to the vertical direction and they form a press nip with each other. The two press units are supported by bearing brackets which are coupled in pairs to each other by detachable ten... | 04/11/1995 |
| 5392702 | Magnetic rolling system having rollers with laminated ply units disposed therein A rolling apparatus utilizing magnetic forces established between two main rollers so that a workpiece undergoes a uniform and predetermined pressure throughout the rolling process. At least one of the main rollers has a ply unit preferably made from insu... | 02/28/1995 |
| 5329844 | Calender with pivotally displaceable roll A calender in a paper or board machine comprises a calender frame, at least two soft-faced rolls mounted on the calender frame and at least one hard roll mounted on the calender frame in a manner that allows the hard roll to be displaced between a first p... | 07/19/1994 |
| 5241903 | Guard for the nips of rolls in calenders and the like A safety guard for the nip of two neighboring rolls in a calender has an elongated support which is located in front of the nip and has two elongated strip-shaped barriers each adjacent but spaced apart from the peripheral surface of one of the rolls. The... | 09/07/1993 |
| 5131324 | Calender device for on-line connection to a paper machine An on-machine calender device intended to be on-line connected to a paper machine. The calender comprises a number of subsequent calendering nips, through which the web (W) to be calendered can be passed. The nips are formed between a soft calender roll a... | 07/21/1992 |
| 5038678 | Calender, in particular a supercalender with multiple relief devices The invention concerns a calender, in particular a supercalender, on whose frame (1) a set of rolls (2) is mounted, which comprises an upper roll (3), a lower roll (4), and several intermediate rolls (5) placed between the upper roll and the lower roll. T... | 08/13/1991 |
| 5029521 | Calender and method of operating the same A calendar wherein a bottom roll and a deformable top roll flank one or more intermediate rolls is operated in such a way that the shape of the top roll is caused to conform to that of the adjacent intermediate roll before the nip of the top roll with the... | 07/09/1991 |
| 5024150 | Process for reducing vibrations of successive sets of rolls and a roll arrangement having reduced vibratory tendencies To reduce vibrations occurring in sets of rolls that are immediately successive along the direction of travel of a web conducted through the nips formed between the roll sets, a process, especially for use in double calendars used to treat paper webs, is ... | 06/18/1991 |
| 5022319 | Apparatus for neutralizing overhanging loads The apparatus for neutralizing overhanging loads is supported at the roll stand of a calender which opens in downward direction. This apparatus is arranged at both sides of a roll and, during operation, presses from below against the roll suspensions in a... | 06/11/1991 |
| 4986177 | Apparatus for controlling the load/relief pressures in a calender There is disclosed a load/relief apparatus for use in a calender of a papermaking machine having a force transfer member positioned between on upper fluid actuator and two lower spaced apart fluid actuators. A linking arm is releasably connected to the lo... | 01/22/1991 |
