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Lawrence Welk, the bandleader who entertained millions of Americans over a generation of broadcasting his TV show, once received a patent: for a music-themed design of an ashtray.
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| Number | Title | Issue Date |
| 6852409 | Radiation-cured correction tape A multilayer pressure sensitive correction tape useful for masking handwritten and/or printed characters comprising a release liner, a masking layer and a pressure sensitive adhesive layer, wherein at least one of the layers is cured by radiation. In a preferred emb... | 02/08/2005 |
| 5006003 | Typewriter Disclosed is a typewriter wherein a ribbon holder mounted on a carriage movable along a platen holds both a print ribbon and a correction ribbon thereon and is displaceable between its first lift position for facing the print ribbon to a print point on th... | 04/09/1991 |
| 4967210 | Dry transfer lettering system and method An improved method and apparatus for the creation and application of visual images such as textual characters is provided, which preferably makes use of a digital computer (12) and laser printer (16). In the preferred method, a desired image is developed ... | 10/30/1990 |
| 4891260 | Multilayer flexible transfer ribbon A transfer ribbon for applying a film of a cover material to a substrate, especially a paper substrate provided with markings to be covered or to be provided with a stripe of color from a coloring agent contained in the cover material, has a carrier-foil ... | 01/02/1990 |
| 4883379 | Correction sheet and correction method An erroneously recorded image among recorded images on a recording medium is corrected by a correction sheet comprising an adhesive layer on a support. The adhesive layer is heated to develop an adhesive force and caused to adhere to the error image and p... | 11/28/1989 |
| 4871274 | Typewriter Disclosed is a typewriter wherein a ribbon holder mounted on a carriage movable along a platen holds both a print ribbon and a correction ribbon thereon and is displaceable between its first lift position for facing the print ribbon to a print point on th... | 10/03/1989 |
| 4781481 | Thermal printer and its printing method A thermal printer includes a single thermal recording medium interposed between printing paper and a thermal head so that when predetermined energy is applied to the thermal head, colorant on the thermal recording medium is transferred to the paper to pri... | 11/01/1988 |
| 4763135 | Thermal-head recording device and method A low-noise, small-sized and inexpensive thermal-head type recording device. The timing of the signal for commencing the driving of a paper feed motor is delayed by a predetermined period, e.g., 5 to 20 mS, after the signal for commencing one-line recordi... | 08/09/1988 |
| 4746933 | Thermal record-erase head A thermal head has heating resistors for thermal image recording and a lift-off heating resistor for ink lift-off. In image recording, both resistors are energized to maintain the ink adhesive to a recording sheet until an ink ribbon is separated from the... | 05/24/1988 |
| 4710047 | Desk-top correction ribbon system A system for positioning correction ribbons having a layer of opaque dry correction material over a letter or image on a surface such as paper for subsequent covering of the image. The system includes a supply spool rotatably mounted in a supply spool hol... | 12/01/1987 |
| 4684272 | Spool for correction tape assembly A spool for a reversible-type correction tape assembly, in which an improved fastening means is provided between the cap and the spool shaft. The spool shaft is designed to hold a ribbon-winding core so that the winding core is slideable in an axial direc... | 08/04/1987 |
| 4654674 | Thermal lift-off correctible record and erase printer A thermal printer for thermal transfer printing, adapted to use a printing ribbon carrying a fusible ink layer and an erasing ribbon carrying a thermoadhesive resin layer. The thermal head of the thermal printer has a printing heating unit disposed opposi... | 03/31/1987 |
| 4648731 | Error correction member positioning system for a printer A correction member driving system for a printer in which an error such as a mistyped character on a recording member is erased by an error correction member in a sequence comprising the steps of positioning a correction member at a position operatively a... | 03/10/1987 |
| 4613248 | Ribbon lift mechanism for a typewriter A typewriter ribbon lifting mechanism includes a holder supporting a printing ribbon and a correction ribbon below the printing ribbon. The holder is vertically tiltable for lifting the printing or correction ribbon selectively from its inoperative positi... | 09/23/1986 |
| 4609585 | Correction tape for copies A correction tape comprising a transparent or semi-transparent base tape; an opaque layer coated on at least one face of the base tape, leaving at least one side part of the coated face, and having the same color as the color of an original or master; a t... | 09/02/1986 |
| 4547088 | Correctable thermal transfer printing ribbon The ink layer of a thermal transfer printing ribbon is overcoated with a hold-off layer which serves to make the resulting printing more easily correctable. The hold-off layer operates by preventing penetration by the ink layer into the substrate being pr... | 10/15/1985 |
| 4482262 | Transfer/correcting ribbon A transfer/correcting ribbon with a base or carrier strip having a semi or low tack adhesive covering substantially one entire surface thereof has at least two co-equal width strips connected to adhere thereto by pressure so as to completely cover the bas... | 11/13/1984 |
| 4453839 | Laminated thermal transfer medium for lift-off correction and embodiment with resistive layer composition including lubricating contact graphite coating A thermal ribbon particularly suited to be used once for printing at one temperature and for lift-off correction at a lower temperature. The bottom, resistive layer is a blend of an aliphatic polyurethane and a urethane acrylic copolymer with conductive c... | 06/12/1984 |
| 4384797 | Single laminated element for thermal printing and lift-off correction, control therefor, and process A ribbon (22) in thermal printing has an outer layer (50) which adheres to printed characters at somewhat elevated temperatures but is non-tacky at room temperatures. The embodiment has an active layer of an ethylene vinyl acetate copolymer, an acrylic po... | 05/24/1983 |
| 4317637 | Typewriter ribbon including a correction strip A typewriter ribbon includes a fiber texture base strip divided by a barrier filling into a black-inked portion and an ink-free portion, and a correction strip, having thereon a white transfer layer, fixedly attached to and substantially superimposed on t... | 03/02/1982 |
| 4161551 | Adhesively correctable transfer medium with delayed alteration resistance characteristics An ink formulation which may be coated on a flexible substratum to produce a typewriter ribbon or the like, wherein the impression made from such a ribbon is capable of adhesive removal shortly after being created on all conventional typing papers, but wh... | 07/17/1979 |
| 4113392 | Printing ribbon A printing ribbon is composed of a printing portion and a correction portion welded together and extending parallel to each other. The correction portion lies in the plane of the printing portion which is the thickest portion of the ribbon and constitutes... | 09/12/1978 |
| 4093772 | Pressure-activated and non-tacky lift-off element and process therefor Disclosed is a non-tacky lift-off tape for letters or characters printed or typed in error comprised of a resin and amine wax coating applied to a film substrate.... | 06/06/1978 |
| 4037708 | Multicolor ink ribbon control for a typewriter A typewriter ribbon system comprising a ribbon drive device movable in response to the operation of a control device. The system allows the selection and printing of a specific longitudinal portion of a ribbon in the operative impact area.... | 07/26/1977 |
| 4034843 | Split correction ribbon and method A split correction-imaging ribbon comprising a longitudinal strip of film-base adhesive correction composition and an adjacent longitudinal strip of film-base pressure-transferable imaging composition. The two strips are overlapped and bonded together by ... | 07/12/1977 |
| 4007823 | Typewriter correction materials employing adhesives Typewriter correction materials employing adhesives including a base strip of light-transmitting material. A transfer strip having a coating of ink thereon is bonded to the base strip and a character-removing strip having a coating of an adhesive thereon ... | 02/15/1977 |
| 3991874 | Automatic function mechanism for typewriters A method and mechanism for automatically performing a typewriter function such as backspacing a carriage where the backspace mechanism is actuated upon removal of an insertable and removable ribbon cartridge. Particularly adaptable to correcting typing er... | 11/16/1976 |
| 3980171 | Ribbon cartridge A top loading ribbon cartridge having a threaded ribbon guide for directing ribbon in the cartridge out of and back into the cartridge which is mountable on one side of a machine printing point. The threaded ribbon guide is movable relative to the cartrid... | 09/14/1976 |
| 3942621 | Method of and article for masking Pellucid carrier sheet having opaque coherent film masking elements releasably secured on the rear surface and pressure responsive means on the rear surface of such elements for enabling transfer thereof through pressure application, as by rubbing with a ... | 03/09/1976 |
