William F. Semple, a dentist, was awarded the first US Patent on chewing gum in 1869. His recipe contained powdered chalk.
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| Number | Title | Issue Date |
| 7299967 | Method for manufacturing plate stacks, particularly coolers or cooler elements made up of plate stacks The invention relates to an innovative method for manufacturing plate stacks, particularly for manufacturing coolers or cooler elements or heat sinks at least one plate stack, with at least two plate-shaped elements made of metal, for example copper, and provided wi... | 11/27/2007 |
| 7225558 | Cross-machine flow and profile control for through-air devices treating permeable webs A through-air device includes a permeable roll having a hollow interior and mounted for rotation about a longitudinal axis. At least one divider is located in the hollow interior so as to define a plurality of roll channels within the roll, the roll channels being p... | 06/05/2007 |
| 7066882 | System, method and apparatus for regulating vacuum supplied to surgical tools A system, method and apparatus for regulating vacuum applied to surgical suction devices allowing the use of a single vacuum regulator and associated canister to provide vacuum to two suction devices, such as a suction stabilizer and a suction retractor. Vacuum cont... | 06/27/2006 |
| 7040482 | Bearing life extender for conveyor type rollers Rollers used on conveyors and inside the zinc-pot of a steel-sheet galvanizing line are usually driven by friction between the roller and the belt or sheet. Such rollers operating in high temperature furnaces or in a hot zinc pot of a steel galvanizing line often ha... | 05/09/2006 |
| 6948303 | Process and arrangement for spinning yarn A process is disclosed for a spinning arrangement for dealing with the correction of an end break. During operation, sliver-like fiber material fed to the spinning arrangement is opened to single fibers by means of an opening roller. The single fibers are then trans... | 09/27/2005 |
| 6725641 | Method of manufacturing a reinforcing thread The invention is a method of manufacturing, by friction spinning, a reinforcing thread (1) for fabric covering or a technical textile intended to be incorporated in a textile base, in which: the spinning machine (7) is supplied with a core threa... | 04/27/2004 |
| 6308507 | Method of and apparatus for producing a textile yarn Singled fibers from a fiber strand, separated by a rotor, are collected by suction on a continuously moving surface of a perforated belt or rotary drum. The fiber packet is not formed with a twist in this region and, only upon transfer to a downstream reg... | 10/30/2001 |
| 6212868 | Arrangement for non-contact revolution counting of an open-end spinning rotor The spinning rotors of open-end spinning aggregates are supported on supporting discs. For the purposes of non-contact revolution counting, a front side of a supporting disc is provided with at least one permanent magnet. A signal receiver of a maintenanc... | 04/10/2001 |
| 6092356 | Process and apparatus for open-end spinning A process for open-end spinning provides for at least one sliver being opened into single fibers. A wide fiber veil is formed from parallel single fibers extending in the direction of motion, which fiber veil is fed to a transporting surface by means of a... | 07/25/2000 |
| 6058693 | Spinning process and apparatus for performing same A spinning process provides for opening at least one sliver to single fibers and for depositing the single fibers on a moving collecting surface in the form of an expanded fiber veil. During transport on the collecting surface and, if required on a moving... | 05/09/2000 |
| 5974778 | Arrangement for open-end spinning comprising a driven suction roller In the case of an arrangement for open-end spinning, a driven suction roller is provided which in a take-up zone takes up fiber material opened to single fibers and transports it to a suctioned yarn formation line. The yarn formation line is defined by a ... | 11/02/1999 |
| 5899056 | Spinning process for producing a yarn In a spinning process for producing a yarn, fiber material in the form of at least one sliver is opened to a fibrous veil consisting of single fibers, and is deposited on an air-permeable suctioned collecting surface. The speed of the fibrous veil transpo... | 05/04/1999 |
| 5890356 | Open-end fiber veil spinning apparatus and method In a process for open-end spinning at least one sliver is opened to single fibers, which form a fiber veil. The single fibers are fed to a rotating collecting surface which is driven transversely to their travel direction, and are withdrawn from the colle... | 04/06/1999 |
| 5802826 | Production of core/wrap yarns by airjet and friction spinning in tandem Core/wrap yarn is produced by continuously forming air jet-spun yarn and uninterruptedly continuously passing it to a friction spinner for purposes of wrapping the air jet-spun yarn with fibrous material in the friction spinner, so as to form core/wrap ya... | 09/08/1998 |
| 5778653 | Suction roller for an open-end spinning machine In the case of an open-end spinning machine, a suction roller is provided which serves to transport a fiber veil, expanding transversely to the circumferential direction of the suction roller, to a yarn formation line. The length of the transport path and... | 07/14/1998 |
| 5768878 | Open-end spinning process and apparatus for performing same In a process in open-end spinning at least one sliver is opened into single fibers. A collecting surface, rotating at a higher speed than the opened single fibers takes up these as soon as they have left the opening area. The single fibers are taken along... | 06/23/1998 |
| 5768879 | Open-end spinning process and apparatus for performing same In a process in open-end spinning at least one sliver is opened into single fibers. A transfer surface, rotating at a higher speed than the opened single fibers, takes up same already in the opening area. The single fibers are taken along transversely to ... | 06/23/1998 |
| 5514479 | Functional coatings comprising light emitting particles Disclosed herein is process method and articles of plated coating having functions ranging from wear resistance, lubricity, corrosion resistance, and further incorporating therein particulate matter having light emitting properties. Having this codeposite... | 05/07/1996 |
| 5497609 | Spinning of yarn A method and apparatus for spinning fibres into yarn including providing a supply of fibres, providing a yarn-building region, opening fibres from the supply into the region, landing opened fibres in said region, removing energy from landing fibres, build... | 03/12/1996 |
| 5268221 | Fiber reinforced rubber articles A rubber article having a fiber reinforcement embedded therein. The reinforcement comprises a cylindrically braided cord of an even number of twisted yarns of four or more, an equal number having an twist, i.e. twisted to the right, and a Z-twist, i.e. tw... | 12/07/1993 |
| 5241813 | Spinning process and device for the production of a yarn The present invention relates to a spinning process and device for the production of yarn. Fibers are conveyed through a feeding channel from an opening roller and deposited onto a perforated collection surface, such as a perforated roll or disk, which is... | 09/07/1993 |
| 5206085 | Preformed yarn useful for forming composite articles and process for producing same A preformed yarn useful for forming composite articles is disclosed which includes a core of a multiplicity of fibers, fine powder provided in the interstices between the fibers, and a flexible sleeve formed of a thermoplastic resin and surrounding the co... | 04/27/1993 |
| 5033262 | Method of forming a corespun yarn for fire resistant safety apparel The corespun yarn is formed on a friction spinning apparatus and comprises three components, including a core of high temperature resistant fibers, a core wrapper of low temperature resistant fibers surrounding and covering the core, and an outer sheath o... | 07/23/1991 |
| 4938018 | Friction spinning machine A friction spinning machine comprising a perforated roller (6) and an imperforate roller (19) is so designed that high-quality yarn can be produced in various sizes and with adequate strengths at a relatively high rate of output. The adjustment parameters... | 07/03/1990 |
| 4918913 | Method of, and device for, performing a start spinning operation for spinning of a yarn in a friction spinning apparatus For performing a start spinning operation in a friction spinning apparatus, upon starting or recommencing spinning of a yarn after yarn breakage, there are accomplished the following steps: fibers opened in a fiber sliver opening device are delivered by a... | 04/24/1990 |
| 4901518 | Open end friction spinning device for production of a yarn or the like The wall of the friction spinning element has bores or holes with a predeterminate bore diameter and a coating on their side facing a fiber feed duct, the coating extending over the bore edges into the bores. Each bore or hole thus formed has a diameter a... | 02/20/1990 |
| 4884394 | Friction spinning unit and method of operating same A friction spinning unit of a multi-position friction spinning machine includes a pressure tapping in the suction line to a suction port in the fibre feed duct. A suction transducer responsive to the suction in the tapping controls the fibre feed clutch o... | 12/05/1989 |
| 4860530 | Corespun yarn friction spinning apparatus and method The present friction spinning apparatus includes a draw frame section with an entrance trumpet including first and second fiber sliver guiding passageways for forming a three component corespun yarn. One of the guiding passageways directs a core roving in... | 08/29/1989 |
| 4858422 | Suction roller arrangement for an open end friction spinning machine A suction insert assembly is disclosed for a suction roller of an open spinning unit having a pair of rotatably driven friction rollers defining a yarn forming wedge-shaped gap or slot therebetween. To accommodate ease of manufacture and provide variable adjus... | 08/22/1989 |
| 4856269 | Device for starting or recommencing spinning of a yarn in a friction spinning apparatus In order to start or recommence spinning of a yarn in a friction spinning apparatus, in the course of starting of spinning or piecing after a yarn break, by means of a fiber transport duct, fibers separated by an opening device, are delivered to a rotatin... | 08/15/1989 |
| 4854117 | Friction spinning apparatus with slub clearing means Slubs are removed from an open-end spinning chamber by the application of suction to a debris-extraction duct by a valve opened to a suction line as the chamber is opened to a suction line as the chamber is opened for cleaning.... | 08/08/1989 |
| 4854118 | Methof of, and apparatus for, producing a friction spun yarn The method of, and apparatus for, producing a yarn uses a friction spinning device comprising a perforated first friction spinning drum and a second friction spinning drum which can also be perforated. Two fiber feed passages project to the first friction... | 08/08/1989 |
| 4848079 | Friction spinning drum In the manufacture of friction spinning drums, in order to be able to select the size of the holes or perforations, on the one hand, to oppose technological fiber loss and jamming of sucked in foreign particles and, on the other hand, to provide airflow a... | 07/18/1989 |
| 4835957 | Open-end spinning machine An open-end spinning machine is provided which includes a cleaning element movable between two rows of adjacently aligned spinning units. The cleaning device sucks away and removes impurities from a stationary collecting device associated with impurity se... | 06/06/1989 |
| 4823545 | Method of and apparatus for false-twist spinning A false-twist spinning unit or apparatus comprises a first spinning disc, such as a top spinning disc and a second spinning disc, such as a bottom spinning disc rotating in opposite directions and arranged in staggered or offset relation at an inter-axis ... | 04/25/1989 |
| 4821505 | Method and apparatus for spinning yarn A method and apparatus of forming a fibre assembly to be spun to form a yarn. The separated fibres are entrained in an air stream (61) and delivered in a tangential direction into a converging annular passage (64). The fibres are straightened in their tra... | 04/18/1989 |
| 4819421 | Method and apparatus for monitoring a predetermined yarn quality at a textile machine, especially at a friction spinning apparatus To control the yarn quality of a yarn produced by a textile machine, for instance a friction spinning apparatus, there is provided at the end of the friction spinning operation, however, forwardly of the pair of withdrawal rolls for the outfeed of the pro... | 04/11/1989 |
| 4819420 | Process and device for piecing to an open-end friction spinning device In order to piece to an open-end friction spinning device with two friction spinning elements driven in the same direction and forming a nip subjected to suction, fibers fed into such nip are twisted into a fiber bundle. The fiber bundle is partially conv... | 04/11/1989 |
| 4817380 | Process and device for piecing up an open-end friction spinning device To piece up to a spinning station consisting of two friction spinning elements (101) driven in the same direction and forming a nip, a thread 30 is conveyed to the nip so that said thread 30 reaches the thread forming zone (104) with its free thread end f... | 04/04/1989 |
| 4815268 | Friction spinning apparatus A friction spinning apparatus includes first and second perforated drums forming a spinning wedge therebetween with a spinning zone. The drums are driven in the same direction with the first drum having a greater circumferential speed than the second drum... | 03/28/1989 |