Patents Examined by Ernest T. Wright, Jr.
  • Patent number: 4692044
    Abstract: An improved resistive ribbon for thermal transfer printing is provided, where the ribbon includes a resistive layer, a metal current-return layer, a fusible ink layer, and an electric interface layer located between the resistive layer and the metal layer. The electrical interface layer is sufficiently thin so as not to impair the required mechanical properties of the ribbon (such as flexibility, stability, durability, etc.), and has as its primary function the enhancement of the electrical porperties of the ribbon. Specifically, interface resistance and/or knee voltage of the current-voltage characteristics of the ribbon are enhanced by the electrical interface layer.Preferred compositions of the interface layer include alkylalkoxy silanes of a specific formula, and especially nonsymmetrical compounds of that formula.
    Type: Grant
    Filed: April 30, 1985
    Date of Patent: September 8, 1987
    Assignee: International Business Machines Corporation
    Inventors: Ari Aviram, Kwang K. Shih
  • Patent number: 4692045
    Abstract: There is disclosed a printing apparatus provided with a mechanism for erasing printed characters by actuating a type font through an erasing ribbon and a mechanism for selecting characters by rotating the type font, wherein the erasure of a printed character is achieved by rotating a type selected from said type font by a determined amount for printing a character in the overlapping manner on the character to be erased.
    Type: Grant
    Filed: May 1, 1985
    Date of Patent: September 8, 1987
    Assignee: Canon Kabushiki Kaisha
    Inventor: Masaru Makita
  • Patent number: 4687360
    Abstract: A thermal transfer ribbon comprising a substrate and an ink layer is disclosed. The ink layer comprises a partially crystalline polymer which becomes soft at a time when the crystalline portion begins to melt, the polymer derived from an acid containing at least one carboxylic acid moiety.
    Type: Grant
    Filed: January 15, 1986
    Date of Patent: August 18, 1987
    Assignee: Pitney Bowes Inc.
    Inventors: Russel E. Wellman, Phyllis A. Cuming
  • Patent number: 4687358
    Abstract: An improved transfer material holding cassette is provided with a rotation inhibiting means which serves to inhibit the core from being rotated freely at a time before it is fitted to the housing of an image building apparatus in which an image is built using the transfer material and release it from the rotation inhibited state when it is fitted to the housing. The rotation inhibiting means is located opposite to the plane of a core extending at a right angle relative to the axis of rotation of the core and comprises a lever turnably supported on the inner wall of the case to turn about the middle part thereof, the one end of the lever being located opposite to the plane of the core and the other end of the same being located opposite to an opening on the case, and a resilient member adapted to normally turn the lever in such a direction that the one end of the lever comes in contact with the core under the effect of a resilient force so as to inhibit the core from being rotated freely.
    Type: Grant
    Filed: May 14, 1985
    Date of Patent: August 18, 1987
    Assignee: Kabushiki Kaisha Toshiba
    Inventor: Masao Saitou
  • Patent number: 4687356
    Abstract: An impact-type electronic printer uses a rotary printing wheel and a ROM to store printing-type position data for dealing with respective printing types borne by the rotary printing wheel, hammer pressure data, and the spacing data respectively matching the designated printing types together with printing-type position data. The main CPU then draws out the printing-type position data, hammer pressure data, and the spacing data in response to the input data to allow the printer to execute the printing operation using the designated printing types in accordance with these data drawn out of the ROM, thus realizing distinctly clean printed characters. The unique system embodied by the present invention makes it possible for the controller to easily read important data from the ROM.
    Type: Grant
    Filed: June 26, 1985
    Date of Patent: August 18, 1987
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Hirotoshi Matsui, Takeo Tsumura, Eiichi Sakanaka
  • Patent number: 4685818
    Abstract: A ribbon fault detection system within an impact printer has a pair of resilient electrical contacts disposed in spaced-apart relation across the width of an ink ribbon within each of a pair of ribbon guides located between the opposite ends of a print station and a pair of spools for receiving the opposite ends of the ink ribbon and driving the ink ribbon. Each of the electrical contacts which is silicone coated to minimize ink migration and which is normally held out of engagement with a mating contact due to engagement by the ribbon is coupled in parallel with the other resilient electrical contacts so that closure of any one of the resilient electrical contacts onto its mating contact will generate an indication of a ribbon fault condition.
    Type: Grant
    Filed: September 16, 1985
    Date of Patent: August 11, 1987
    Assignee: Printronix, Inc.
    Inventors: Sam Kazarian, Steffen D. Hagene, Kenneth A. McCrimmon, Jr., Robert C. Miller, James A. Schwerin
  • Patent number: 4684277
    Abstract: An apparatus for delaying the closing of a printer paper bail so that paper positioned for the first line of printing at the top of the paper will advance in the paper path to a position where the paper bail can close on it. The apparatus mounts on a conventional paper bail assembly and has a sector cam which rotates to a position between its axis of rotation and the platen thereby restraining the closing of the paper bail. It is preferable that the sector cam contact the drive gear of the platen. When the platen rotates for feeding the paper through the paper path, frictional contact between the sector cam and the platen gear causes the sector cam to rotate to a position where the sector is no longer between its axis of rotation and the platen thereby permitting the paper bail which is under spring tension to close.
    Type: Grant
    Filed: January 3, 1983
    Date of Patent: August 4, 1987
    Assignee: Raytheon Company
    Inventors: Carl W. Edstrom, Daniel E. Fedele, Martin Lazar
  • Patent number: 4684271
    Abstract: A ribbon for thermal transfer printing is disclosed. The ribbon comprises a substrate and an inking layer, the inking layer comprising low molecular weight polymer, a colorant, and an amorphous polymer.
    Type: Grant
    Filed: January 15, 1986
    Date of Patent: August 4, 1987
    Assignee: Pitney Bowes Inc.
    Inventors: Russel E. Wellman, Phyllis A. Cuming
  • Patent number: 4684275
    Abstract: An electronic typewriter includes a plurality of character keys, a specification selector, a printer circuit, and a memory for storing a plurality of specification tables, each having a plurality of key data. A data processing circuit detects a determined one of the plurality of specification tables in response to a selection signal from the specification selector, and reads out the corresponding key data from the specification table selected in accordance with the operation of the character keys, thereby driving the printer circuit in accordance with the key data. The specification selector includes a plurality of selection switches formed on the same keyboard together with the plurality of character keys.
    Type: Grant
    Filed: June 24, 1983
    Date of Patent: August 4, 1987
    Assignee: Tokyo Electric Co., Ltd.
    Inventors: Tsuyoshi Matsushita, Motoi Maekawa, Makoto Takahashi
  • Patent number: 4679953
    Abstract: In a paper feeding and ejecting device for a printing apparatus, a sheet of paper is fed by a paper feeding roller from the top of a stack of paper sheets in a magazine through a feeding guide to a gripping assembly on the peripheral surface of a platen which is rotated in one direction during printing and in the opposite direction during ejecting of a printed sheet through an ejecting guide to ejecting rollers. The feeding roller and the ejecting rollers are driven by a single reversible drive motor at suitable times during the operating cycle. The feeding guide and the ejecting guide are separated from each other at the platen so that the feeding of a sheet to the platen will not interfere with the ejecting of a printed sheet. At the completion of each operating cycle, the feeding roller is accurately located at a standby position without requiring the use of a control sensor therefor.
    Type: Grant
    Filed: October 24, 1985
    Date of Patent: July 14, 1987
    Assignee: Sony Corporation
    Inventors: Masakazu Sone, Takeshi Nakajima
  • Patent number: 4679952
    Abstract: A printing apparatus wherein character data to be tabulated is input. Data representing the printing position of a specified digit of one piece of character data is input in a tab memory. Then, data designating a tab operation is supplied to an address converting circuit. In accordance with this data, the address converting circuit converts the addresses of the pieces of character data such that the specified digit of every piece of character data is printed at the position represented by the data stored in the tab memory.
    Type: Grant
    Filed: November 12, 1985
    Date of Patent: July 14, 1987
    Assignee: Casio Computer Co., Ltd.
    Inventors: Satoshi Hirota, Kimihiro Nagamine
  • Patent number: 4676678
    Abstract: A ribbon cassette cartridge detachably mounted to an image forming apparatus includes a multi-color ribbon wound around a pair of rollers mounted inside the cartridge. The cartridge has a lid which is opened to exchange the ribbon and roll shafts. The cartridge also includes a locator slot adapted to detachably mount the cartridge on a cooperating holder in the image forming apparatus. Holding means are provided in the cartridge to prevent the rollers from rotating when the cartridge is not mounted on the image forming apparatus.
    Type: Grant
    Filed: February 14, 1985
    Date of Patent: June 30, 1987
    Assignee: Kabushiki Kaisha Toshiba
    Inventor: Junji Watanabe
  • Patent number: 4674899
    Abstract: A recorder comprises a recorder body including a case, holding means for holding continuous record paper sources such as, an elongated record form stack, and a record paper roll, guide structure for guiding a record paper taken out of the record paper source, and a record head for recording on said record paper fed through the guide structure, and a cover member for converting at least a portion of the holding means, the guide structure and the record head, the cover member being removably attached to the case. A non-continuous paper sheet, which is fed to the record head through a slot in the cover member along a feed path different from the continuous record paper, may be used in the recorder. A detector is also provided for detecting the end of the continuous record paper.
    Type: Grant
    Filed: February 24, 1986
    Date of Patent: June 23, 1987
    Assignee: Canon Kabushiki Kaisha
    Inventor: Tetsuo Kimura
  • Patent number: 4673304
    Abstract: A user-friendly ribbon cartridge to house and to facilitate handling a wide thermal transfer ribbon for a thermal color printer is composed of first and second casing sections which define a slotted let-off tube and a slotted take-up tube and turnbar. A pair of casing end pieces connect the corresponding ends of the casing sections so that they are juxtaposed with their axes parallel to one another so as to define a plane and the turnbar is spaced parallel to that plane so that a stretch of ribbon wound about cores rotatively mounted in the tubes can extend out through the tube slots and over the turnbar creating a large unobstructed planar ribbon area that is accessible from both sides for printing. A handle and latch member integral to one of the end pieces facilitate positioning the cartridge properly in the associated printing apparatus and locking it in place during printing.
    Type: Grant
    Filed: August 13, 1985
    Date of Patent: June 16, 1987
    Assignee: Sanders Associates, Inc.
    Inventors: Dean-Yuan Liu, Albert A. Sholtis
  • Patent number: 4669903
    Abstract: An improved keyboard for computer terminals, computer input devices, word processors, typewriters and any other operating or simulator keyboard is disclosed in which selected keys of the keyboard are selectively positioned and aligned to enable a proper alignment of the left forearm and left hand from elbow to fingertips for the keys that are operated by the left hand, and to enable fast, accurate, unobstructed and comfortable movement of the fingers of the left hand; and in which selected keys of the keyboard are selectively positioned and aligned to enable a proper alignment of the right forearm and right hand from elbow to fingertips for the keys that are operated by the right hand and to enable fast, accurate, unobstructed and comfortable movement of the fingers of the right hand. The improved keyboard also provides a tactile and visual means for placing the hands in proper positions on the keyboard.
    Type: Grant
    Filed: April 23, 1985
    Date of Patent: June 2, 1987
    Inventors: Stuart Herzog, Barbara Herzog
  • Patent number: 4669902
    Abstract: The ribbon (17) has an external run between the type element (25) and platen of a daisy-wheel typewriter. This run stretches between terminal members (59) which protrude from side arms (33 and 34) of the cartridge casing (18) and are fixed to the distal ends of arms (39, 41) pivotally mounted in the casing (18) at (52). The arms (39, 41) are biased downwardly by wire springs (67) to expose the typing line. Ribbon lift levers of the typewriter raise the arms simultaneously to position a selected one of three tracks on the ribbon at the level of the typing point. The terminal members (59) slide on guides (62) at the ends of the side arms (33, 34), constraining the external ribbon run to lie always within and translate within a single plane. The edges of the guides (62) are curved so that the tilt of the terminal members (59) varies as they move up and down, in such a way as to maintain the ribbon tension uniform across the width of the ribbon (17).
    Type: Grant
    Filed: February 23, 1984
    Date of Patent: June 2, 1987
    Assignee: Ing. C. Olivetti & C., S.p.A.
    Inventors: Boris Ukmar, Mario Trompetto
  • Patent number: 4666321
    Abstract: An electronic typewriter includes: a carriage mounting a printing unit; a control unit for controlling the movement of the carriage; a first setting unit for setting a print start position at a preset position, a second setting unit for setting a decimal point tab position so as to align decimal point positions while printing; and a decision unit for deciding whether the control unit is to control the carriage on the basis of the decimal point position set by the second setting unit. The carriage is stopped at the decimal tab position if it is necessary, while the carriage is not stopped at the decimal tab position if it is not necessary. Thus, the operator can perform the tab operations without paying attention to the decimal tab position. Alternatively, instead of the decimal tab position, such control may apply to the tab position.
    Type: Grant
    Filed: February 19, 1985
    Date of Patent: May 19, 1987
    Assignee: Canon Kabushiki Kaisha
    Inventor: Kaoru Kumagai
  • Patent number: 4661004
    Abstract: Member (9) has a tension arm (13) over which ribbon (3) feeds. Biasing arm (17) presses member (9) toward brake surface (7), with slot (21) moved until it encounters stud (23). At low tension of ribbon (3), brake surfaces (11) and (7) press and hold ribbon (3). As feed tension increases tension arm (13) forces member (9) back until stud (23) encounters the opposite end of slot (21), after which slightly higher force further opens the brake and arm (13) continues to provide feed tension. The mechanism is small, efficient, smooth functioning, and suited to incorporation as part of a ribbon cartridge.
    Type: Grant
    Filed: April 30, 1985
    Date of Patent: April 28, 1987
    Assignee: International Business Machines Corporation
    Inventors: Steven L. Applegate, James A. Craft
  • Patent number: 4657419
    Abstract: An information carrier such as a push-button switch consists of a silicone elastomer. The information carrier has an a label-carrying surface in which there is embedded a printing ink having a vulcanizing mechanism similar to that of the silicone elastomer. The ink and silicone elastomer are vulcanized to form the ink into a pattern on the label-carrying surface. The label-carrying surface having the pattern embedded therein constitutes a non-glossy surface of a predetermined roughness. Also disclosed are a method and apparatus for manufacturing the information carrier by printing the printing ink on a transfer plate, which has a roughness of several microns, followed by half vulcanization to embed a pattern which is manifested by the printing ink into the label-carrying surface of the information carrier.
    Type: Grant
    Filed: November 13, 1984
    Date of Patent: April 14, 1987
    Assignee: Toho Polymer Kabushiki Kaisha
    Inventor: Masao Takakuwa
  • Patent number: 4655620
    Abstract: An electronic typewriter with an electronic spelling dictionary feature included therein automatically adds a code signal to a code memory register corresponding to a print position of a printed error. The printed error is detected by the dictionary feature in response to printing operations. The electronic typewriter also automatically repositions a print hammer of a printing mechanism to the printed error position from a position beyond the printed error. This is accomplished by an operator actuating a key or a multiple key sequence for finding the printed error by the electronics searching for and finding the added code signal.
    Type: Grant
    Filed: December 26, 1985
    Date of Patent: April 7, 1987
    Assignee: SCM Corporation
    Inventors: Donald T. Adams, R. William Gray