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| Number | Title | Issue Date |
| 6564983 | Apparatus for controlling web tension An apparatus for controlling the web tension in a perforation-welding system for making bags from synthetic resin foil webs in which whistling noises are eliminated by passing the web over a wall of a polygonal duct having an air outlet opening to which c... | 05/20/2003 |
| 6461671 | Paper coating apparatus and method for coating paper Apparatus and method for coating a moving paper web, in which the web to be coated is first guided to a coating station correctly aligned and a first side of the web is coated with a coat layer. Next, the web is guided upwards from the coating station and... | 10/08/2002 |
| 6251477 | Paper coating apparatus and method for coating paper Apparatus and method for coating a moving paper web, in which the web (2) to be coated is first guided to a coating station (7) correctly aligned and a first side of the web (2) is coated with a coat layer. Next, the web (2) is guided upwards from the coa... | 06/26/2001 |
| 5803392 | Vacuum box and method of operation for non-contact web transport therein A vacuum box (38) is provided with recesses (86, 88, 90, 92) on the inner surfaces (74, 76) of its front and/or back walls (40, 42) along at least two of its interior corners (78, 80, 82, 84); so that, the pressures on opposite sides of the incoming and o... | 09/08/1998 |
| 5775623 | Low inertia apparatus and method for accumulating and applying tension to webs A web (44) passes over an air bar (40) or metering drum, defines a loop (48, 50, 52) within an open space (46) defined between two pneumatic tensioning wall members (14, 16), and passes over an air bar (42) or metering drum. Pressurized air issues through... | 07/07/1998 |
| 5501412 | Apparatus and method for controlling tension in a web An apparatus for controlling tension in a web includes devices such as unwinding and calendar or wind-up rollers for supporting opposite ends of the web. A pressure region is formed between the opposite ends of the web adjacent a first side of the web. Th... | 03/26/1996 |
| 5135149 | Apparatus for the storage and transport of an elongate endless tape A storage bin (3) in which at least a part of the tape is stored as a package of tape loops (2a) has main walls (4), an entrance wall (5) and an exit wall (9), the walls (5, 9) being formed with an entrance slot (6) and an exit slot (10) respectively, and... | 08/04/1992 |
| 4858808 | Tape handling apparatus A tape handling apparatus for storing an endless loop of tape in a bin and moving the tape from the bin exit past a reproduce head assembly to the bin entrance for use in duplication of the tape. A tape handling apparatus with a tape injection assembly at... | 08/22/1989 |
| 4727440 | Dual-column tension and speed controller for high speed tape transporter A closed loop, high-speed tape transporter (10) includes a vacuum supply (11A), a first vacuum column (40) operatively connected to the vacuum supply (11A) and positioned upstream from a pick-up head (100) and downstream from a tape bin (64) for receiving... | 02/23/1988 |
| 4700909 | Tape deck having improved tape path A tape deck providing means to drive and control a file reel and a machine reel including a vacuum source and a capstan drive means, the tape deck including a first vacuum column of relatively wide width and short length extending upwardly and at an acute... | 10/20/1987 |
| 4512505 | Convertible platen for graphics plotter A convertible platen for use in a graphics plotter to allow its selective use as either a cut paper plotter or a roll paper plotter. The platen is formed from a specially designed aluminum extrusion and a pair is mounted with one on either side of the dru... | 04/23/1985 |
| 4477822 | Graphic recorder A graphic recorder of the vacuum column buffer type has a pair of wells into which the two loops on the sheet material are drawn down. Top and bottom sensors are provided in each well for maintaining the loops within a predetermined range of movement; but... | 10/16/1984 |
| 4469265 | Tape handling device A tape handling device for the handling and storage of an endless flexible tape is described. The device may be used in conjunction with audio recorders, equipment controllers, data processors, or other systems requiring signal storage on tape. The device... | 09/04/1984 |
| 4377251 | Variable geometry vacuum column A tension regulator for magnetic recording tape, which comprises a plurality of side members forming an encased columnar space having an open top for receiving a flexible tape loop. One of the side members is adjustably positionable relative to the other ... | 03/22/1983 |
| 4370872 | Apparatus for continuously treating strand-like textile material in vertical loops An apparatus for continuously treating strand-like textile material includes a cubic or quadratic liquid container, and an endless chain which is guided in the vicinity of the container bottom and the container end walls and is provided with transverse ro... | 02/01/1983 |
| 4355882 | Multiple function reproduction apparatus A multi-mode copying or reproduction apparatus. The apparatus includes a movable, overlong flexible photoconductive belt having image exposure, developing, transfer and cleaning stations operatively disposed about the belt circumference. A two chamber vac... | 10/26/1982 |
| 4316568 | Methods and apparatus for guiding tape Tape guiding methods and apparatus advance a tape through an arcuate bend having equal radii at both edges. Within that bend an unbalance providing a net force transversely of the tape is created at the tape edges while maintaining the equal radii. The ad... | 02/23/1982 |
| 4300711 | Apparatus for the pneumatic transport of textile band material Tubes or conduits, guiding slubbing or roving or the like during pneumatic transport thereof, terminate at a box or cabinet which delimits a compartment connected with the suction side of a ventilator. Within the compartment there is provided for each tub... | 11/17/1981 |
| 4218026 | Paper web buffer system A buffer system for isolating a supply of paper web from a processor operating on the paper web. The buffer system comprises a vacuum chamber and vacuum pump creating a pressure differential across a portion of the paper web forcing the web into the vacuu... | 08/19/1980 |
| 4216888 | Installation for the formation of suspended folds in textile strip material In an installation comprising a chain of rods from which woven material in strip form is suspended in folds, the discharge of hot air or steam through a blowing nozzle is subjected to the cyclic action of a regulating device for progressively reducing the... | 08/12/1980 |
| 4216889 | Vacuum tank for magnetic tape handlers A one piece extrusion provides the base for a simple and effective vacuum tank for magnetic tape handlers. The extrusion carries longitudinal slots which accept stamped metal nuts. These nuts are readily positioned by sliding them along the slots. Slots a... | 08/12/1980 |
| 4210266 | Device for ejecting a loop of leader tape from a magnetic tape cassette A device for ejecting a loop of leader tape from a magnetic tape cassette, in which a portion of the leader tape is blown out of the cassette so as to form a loop, by means of a stream of air issuing from at least one nozzle which is connected to a source... | 07/01/1980 |
| 4199766 | Random-dump storage buffer for moving web A storage buffer for a moving web comprises a collection bin having an opening through which the web can be randomly dumped under the influence of gravity; means for floating randomly dumped web within the collection bin upon a cushion of gas without mech... | 04/22/1980 |
| 4181426 | Random-dump storage buffer for moving web A storage buffer for a moving web comprises a collection bin having a bottom triangular cavity, a top opening through which the web can be randomly dumped under the influence of gravity and a bottom opening through which the web is withdrawn from the coll... | 01/01/1980 |
| 4128198 | Endless tape loop storage apparatus An endless loop tape storage apparatus comprising a horizontally disposed storage receptacle in which the bulk of the tape loop forms into serpentine folds. The tape is moved into the receptacle by opposed relatively high velocity, low volume air jets adj... | 12/05/1978 |
| 4127225 | Tape storage bin An improved storage bin is provided for storing a flexible tape so that it can be moved in and out of the bin at relatively high speeds. Air is injected to establish a vertical pressure gradient to support the tape in the bin, and the bin has a tapered ge... | 11/28/1978 |
| 4110758 | High quality printing system with constant intermittent tape drive A printing system of the type wherein magnetic images are recorded on a tape, the images are toned, the tape is positioned to extend adjacent to a web of paper, and the toner is then transferred from the tape to the paper. In the present system, the tape ... | 08/29/1978 |
| 4052022 | Winding device A wire tension device for winding wire on an asymmetrical core or jig such that wire consumption periodically varies with the angle of rotation. Between the feed coil and the core a tensioning device is formed by two plates arranged parallel at some dista... | 10/04/1977 |
| 3986651 | Concave tape guide A concave web guide is disclosed wherein the direction of motion of a web may be changed by a concave web guide which contacts the convex surface of the web. This contact is maintained through the use of a vacuum supplied through spaces in the web guide s... | 10/19/1976 |
| 3952968 | Tape transport system A digital magnetic tape transport incorporates a pair of adjacent vacuum storage columns each with oppositely disposed closed and open ends, a magnetic head assembly defining a generally linear tape threading path along one side of the vacuum storage colu... | 04/27/1976 |
| 3948463 | Web transport load and unload system A tape loading system for use with tape transport systems having low inertia tape loops formed in vacuum buffer columns in a tape path between the tape storage reels and the tape driving means comprising, a vacuum source for providing vacuum in the vacuum... | 04/06/1976 |
| 3945036 | Information recording transport with tape tension equalization between distinct capstans An information recording tape transport comprises equipment for selectively winding and unwinding information recording tape, two distinct and spaced tape drive capstans, separate transducing equipment associated with each tape drive capstan, and at least... | 03/16/1976 |
| 3940090 | Vacuum column loading interlock This abstract describes an improvement in conventional vacuum column magnetic tape decks whereby the tape can be threaded directly across from one reel to the other after which it will automatically be threaded into the vacuum chambers, in sequential orde... | 02/24/1976 |
