Famous Patents
The first match was accidentally discovered in 1826 when John Walker scraped a stick with chemicals on the end against a stone floor.
PatentStorm News
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 |
| 7799170 | Method and device in a paper or board machine line for straining paper In a paper or board machine drying line after the wire section, during dewatering a web's (W) width is affected in a direction crosswise to the web's traveling direction. Starting from an edge, at least one device (20A, 20B) brings about a force effect... | 09/21/2010 |
| 7429310 | Method, arrangement and equipment for tensioning and guiding a fabric in a paper or board machine A paper or board machine has a fabric (10) that is adapted mobile as well as rolls (11, 11′) arranged to support the fabric (10). The fabric (10) is tensioned by changing the position of one roll (11′) of the rolls (11, 11 | 09/30/2008 |
| 7419569 | Paper manufacturing process A method of making soft, strong, high bulk tissue is disclosed. The method includes pre-conditioning a wet web by straining the wet web in the cross-machine direction prior to transferring the wet web to a throughdrying fabric. The pre-conditioned web provides impro... | 09/02/2008 |
| 7315007 | Method and apparatus for stiffness and thickness detection in mail sorting systems A method is provided for preventing flat mail pieces having excessive thickness or stiffness from entering a mail processing machine wherein flat mail pieces are held on opposite sides and conveyed by paired conveyor belts around one or more curves, including one cu... | 01/01/2008 |
| 7243404 | Web-spreading process and web-spreading device A web-spreading device and a web-spreading process are provided. The web-spreading device, is provided whereby a first web strand being conveyed and a second web strand being conveyed next to the first web strand in a web-processing machine can be offset in parallel... | 07/17/2007 |
| 7240595 | Process for producing magnetic tape A process for producing a magnetic tape is provided, in which a web is extended in the width direction immediately before it is cut by a slitter when the web is supplied to the slitter to be cut into several magnetic tapes. The extension of the web is performed by a... | 07/10/2007 |
| 7229528 | Processes for foreshortening fibrous structures Papermaking processes and more particularly to papermaking processes for foreshortening fibrous structures are provided. ... | 06/12/2007 |
| 7194789 | Abraded nonwoven composite fabrics A nonwoven composite fabric is provided that contains one or more abraded (e.g., sanded) surfaces. In addition to improving the softness and handfeel of the nonwoven composite fabric, it has been unexpectedly discovered that abrading such a fabric may also impart ex... | 03/27/2007 |
| 7182338 | Apparatus for discriminating sheet material The present invention provides an apparatus for discriminating the kind of a sheet material, comprising: a substrate having a recessed portion; a press member situated so that a sheet material can be deflected using the recessed portion; a support member that is def... | 02/27/2007 |
| 7166191 | Curl straightening method for image receiving paper for sublimation dye transfer and curl straightening device therefor To provide a curl straightening method for image receiving paper for sublimation dye transfer, which is capable of realizing a smaller roll core diameter of the roll paper. The curl of an image receiving paper 100 for sublimation dye transfer having stiffness... | 01/23/2007 |
| 7144476 | Carbon fiber electrode substrate for electrochemical cells This invention relates to electrode substrates for electrochemical cells, particularly low-temperature fuel cells, and processes for their production. Low-cost carbon fiber paper structures are used as precursor for preparation of an all-carbon product that has a hi... | 12/05/2006 |
| 7111742 | Device for separating postal items according to thickness classes The invention relates to a device for separating flat postal items according to thickness classes. A rigid system of overlapping lamellae (5) on two continuous traction mechanisms (3) revolving on two deflection rollers (4) provides a lamella-ty... | 09/26/2006 |
| 7096743 | Device for measuring the bending strength of flat consignments An apparatus for measuring the flexural rigidity in the longitudinal direction of flat items of mail transported one after another on a conveying path includes a control device, a sensor for detecting the edges of the items of mail and signaling the control device w... | 08/29/2006 |
| 7067039 | Method and equipment in connection with a paper machine or a paper web finishing apparatus A variable representing runnability of a paper web to be manufactured with a paper machine or processed with a finishing apparatus is measured and the speed difference between operational groups of the paper machine and/or the finishing apparatus is adjusted on the ... | 06/27/2006 |
| 7045037 | Process for cleaning a roll in a calender Process for cleaning at least one roll of a calender. The process includes guiding a web over a surface of the at least one roll of the calender to be cleaned, and producing a relative speed difference between the surface of the least one roll and a section of the w... | 05/16/2006 |
| 6994898 | Packaging container packaging laminate and a method of producing a packaging container A packaging container for a pressurized, liquid food, the packaging container being formed from a packaging laminate which includes at least one core layer of paper or paperboard displaying one major fibre orientation in a first direction thereof. According to the i... | 02/07/2006 |
| 6973797 | Capacity control for economizer refrigeration systems An economizer-equipped refrigeration system and method is provided for simultaneous operation of at least one capacity control valve controlling an independent bypass circuit with operation and variable control of the economizer circuit to permit efficient, flexible... | 12/13/2005 |
| 6971295 | Sheet delivery apparatus A sheet delivery apparatus includes a cutter cylinder, a cutter reception cylinder, and a conveyor provided downstream of the cylinders. The cutter cylinder and the cutter reception cylinder cooperatively cut a paper web so as to yield sheets of predetermined size. ... | 12/06/2005 |
| 6767431 | Method for measuring and regulating curl in a paper or board web and a paper or board machine line In the manufacture of a paper or board web (W), the web is slit or cut, the rising/lowering (H) of the edges of a slit/cut gap (C) formed at the slitting/cutting point or the width (L) of the gap is measured by means of a measurement device (21A; 21B; ... | 07/27/2004 |
| 6740200 | Methods and system for manufacturing and finishing web products at high speed without reeling and unwinding A method for directly forming and finishing a web product is provided. The method includes forming a web on a forming apparatus, continuously transferring the formed web to a conveyor, performing a converting step on the web as the web is continuously supported and ... | 05/25/2004 |
| 6716317 | Tension decurler for web material A running web is decurled by controlling web tension as well as the angle of wrap on a decurler roll and a cooperating pivot roll, all without affecting web tension in the downstream web converting process. An upstream brake roll and a downstream pull roll control w... | 04/06/2004 |
| 6668155 | Lead edge paper curl sensor A sheet curl measurement system and method and an automatic sheet decurling system controlled thereby for the printed paper sheets output of printer. The sheet curl may be remotely sensed without contacting or interfering with the motion of the sheets in ... | 12/23/2003 |
| 6607638 | Process for increasing the softness of base webs and products made therefrom A process for increasing the tactile properties of a base web without adversely effecting the strength of the web is disclosed. In one embodiment, the process includes the steps of placing a base web between a first moving conveyor and a second moving con... | 08/19/2003 |
| 6488810 | Process and device for producing a fibrous material web Process and apparatus for influencing web characteristic in a machine for producing a fibrous web. The process includes guiding the fibrous material web in a still-wet state and stretching the still-wet state fibrous material web in a crosswise direction.... | 12/03/2002 |
| 6365003 | Apparatus and process for processing a material web Apparatus and process for processing material web. Apparatus includes a rotatable cylinder, in which material web is guided over rotatable cylinder, first fixed carrier, and at least three belt guide rolls, in which one of the at least three guide belts i... | 04/02/2002 |
| 6352614 | Method for guiding a paper or board web Method and apparatus for guiding a paper or board web in a paper manufacturing machine, a board manufacturing machine, or finishing units in connection with such machines. Web travel is guided by changing the travel position of at least one wire travellin... | 03/05/2002 |
| 6302678 | Setting device for bending layer material more particularly paper For levelling webs of paper (3) gaps (20) are provided, each defined by a deflection roll (17) and a stationary bending face (16). For changing the wrap angle at the bending face (16) and also for non-bended passage of the web (3) through the device (1) t... | 10/16/2001 |
| 6221210 | Transfer paper for electrophotography and a method for producing thereof The present invention relates to transfer paper in electrophotography that shrinks by no more than 0.45% in a direction crossing a flow in making paper process and which has a two sideness shrinkage difference in a crossing direction ranging 0.02 to -0.02... | 04/24/2001 |
| 6146499 | Method for increasing cross machine direction stretchability A method and product is disclosed to obtain sheets with increased cross-machine stretch. The method involves the use of a cross-machine stretchable fabric upon which a wet web of paper is placed. The method results in a product having increased cross-mach... | 11/14/2000 |
| 6131306 | Method and apparatus for drying a fiber web An apparatus for drying and smoothing a fibre web between two tight bands that move in parallel and run around turning rolls, the first band being heated with hot steam and the second band being cooled with water, and the fibre web being conducted through... | 10/17/2000 |
| 6033067 | Feed sheet fold removing structure and method used in ink jet recording apparatus A recording apparatus is capable of preventing both contamination on a recording surface due to a contact of a recording medium on an ink discharging surface even when recording on the recording medium with a concave/convex portion and an ill-discharged s... | 03/07/2000 |
| 6024836 | Process and device for production of a pulp web A process and device for producing a pulp web utilizes several independently driven aggregates (i.e., discrete groups) to attain a median web dry content of, e.g., 60%. The number of driven aggregates may depend upon an initial wet strength of the wet pul... | 02/15/2000 |
| 5928124 | Method and apparatus for the continuous feed of a strip of material to a machine A strip of material is fed continuously to a machine, along a given path extending through a curling station for the strip, at which the path has a curved segment which forms a loop. The strip inside the curling station is subjected to flexing, by applyin... | 07/27/1999 |
| 5858021 | Treatment process for cellulosic fibers Disclosed is a process for treating cellulosic fibers using an alkali metal hydroxide. The process first prepares the cellulosic fibers as a high consistency mixture with water and then adds an alkali metal hydroxide. The high consistency process is quite... | 01/12/1999 |
| 5725734 | Transfer system and process for making a stretchable fibrous web and article produced thereof A transfer configuration for a paper making machine, the transfer configuration being composed of: 1) a first carrier fabric having a first surface on which a fibrous web is transported to the transfer configuration at a first velocity; 2) a second carrie... | 03/10/1998 |
| 5592751 | Dryer section having combination of single and double tier dryer groups A drying section for a paper making machine. The drying section includes a plurality of single-tier dryer groups, optionally followed by one or more double-tier groups. To control curl in the final paper product, a moistening device extending over the wid... | 01/14/1997 |
| 5565971 | Pivotal bi-directional decurler A pivotal, bi-directional decurler that changes sheet bending direction from an away from image to a toward image direction includes a decurler support structure that is mounted for bi-directional movement by a cam mechanism. A belt member is entrained ar... | 10/15/1996 |
| 5555083 | Decurler apparatus for reducing cross curl in sheets A decurler for reducing cross curl in sheets includes at least one grooved elastomer transport belt and a ribbed pinch shaft. The ribs of the decurler shaft extend into the grooves in the belt to provide one-sided corrugations to a passing sheet and provi... | 09/10/1996 |
| 5414503 | Predictive decurler apparatus and method An apparatus for adaptive sheet decurling in an electrophotographic printing machine. A plurality of sensors are provided to determine the basis weight of the copy sheet, the density of the image being transferred to the copy sheet and fused thereon, the ... | 05/09/1995 |
| 5316539 | Self-adjusting paper recurler Lower, arced decurling guide (1) is pivoted on pin (3) and biased upward by spring (7). Upper stop (11) prevents the lower guide from moving closer to upper decurling roller (15). Paper (9) is guided between these upper and lower guides and the lower guid... | 05/31/1994 |
