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| Number | Title | Issue Date |
| 6047223 | Electronic computer having a magneto-optic unit This invention refers to an electronic computer 10 having a reader 21 for the reading of removable magneto-optic media (CD-ROM) 14. The electronic computer 10 allows even non-expert users to playback the CD-ROM media by pressing pushbuttons 48 on a button... | 04/04/2000 |
| 5879091 | Impact printer with yielding platen An impact printer (30) comprises a printhead (31) traversing along a guide for printing a line on a document (32) of thickness S, and is provided with contrast means for supporting the document (32) against the head (31) and for contrasting the impact for... | 03/09/1999 |
| 5668582 | Printer with interchangeable printing heads An ink jet printing head 14 is mounted on a movable carriage 13 and a fixing device 32 removably fixes the head 14 by means of a hook 111 adapted to cooperate with a shoulder of the head 14 or an alternative priming head 16 of the wire type. An electronic... | 09/16/1997 |
| 5606519 | Portable electronic computer with removable disk drive A computer comprises a keyboard, and a base with a housing accommodating either a floppy disk drive or part of an external power supply which can be connected to the mains. When the power supply is fitted in the housing, a sensor prepares a reduced output... | 02/25/1997 |
| 5570290 | Electronic franking system for postal items The invention concerns an electronic franking system for postal items. The technical problem is that of franking the postal item correctly, without the intervention of postal administration staff. The system 31 is of the "self service" type, and comprises... | 10/29/1996 |
| 5523848 | Ink jet printing device and plain paper facsimile apparatus using the same The printing device has, in addition to a line feeding device mounted upstream of the printing line to make the sheet advance incrementally, an extraction mechanism mounted downstream of the printing line in order to enable printing without smudging until... | 06/04/1996 |
| 5489932 | Ink container for an ink jet print head An ink container for an ink jet print head has a main tank filled with an absorbent fibrous material which holds ink by capillary action. A feed channel conducts ink from the main tank to a feed chamber whence it passes to the head. An auxiliary tank (30)... | 02/06/1996 |
| 5475626 | Portable computer with a simple power supply control of chargeable and non-rechargeable battery packs A portable computer consists of a base unit within which an electronic unit is housed along with two power supply conductors for the electronic unit. The base unit includes a housing to receive a battery pack with terminals for connection to the power sup... | 12/12/1995 |
| 5414452 | Recognition of ink expiry in an ink jet printing head In ink jet printers in which the printing head (33) is connected to an ink reservoir (16), such as may be used in teleprinter or facsimile apparatuses, it is necessary to foresee the expiry of the ink in the reservoir in order to be able in due time to re... | 05/09/1995 |
| 5410497 | Portable computer having two display units A Portable computer comprises a base unit on which a lid is hinged. The base unit houses an electronic unit which can assume various operational states and carries an input unit. A display screen is carried by the lid and is controlled by the electronic u... | 04/25/1995 |
| 5358555 | Ink for an ink jet printer Ink for an ink jet printer comprises a microdisperse three-phase system having two liquid phases and one solid phase, the pigment. The ink exhibits a high indelibility and a low tendency towards the formation of microprecipitates.... | 10/25/1994 |
| 5275494 | Electronic typewriter with separately attachable display module and electronic control unit An electronic typewriter has an electronic control circuit housed with the usual typing mechanism in a casing, and can be provided with a display module for displaying text and/or machine functions. The display module is removably fixed to the casing. An ... | 01/04/1994 |
| 5207796 | Electronic typewriter An electronic typewriter (11) has a line spacing device (29) for rotating a platen roller (16) and a transport device (28) for moving a printing carriage (19) in both directions. The line spacing and transport devices are driven from a single motor (32) v... | 05/04/1993 |
| 5192149 | Cassette for typing ribbon for typewriters A unitary cassette for a typewriter comprises a container and two arms. The container comprises two support elements and which project from the bottom and which are capable of rotatably supporting a supply spool and a take-up spool for a correction ribbon... | 03/09/1993 |
| 5169248 | Feed arrangement for a typing and/or correction ribbon for typewriters, and linear motor use therein A feed arrangement for a typing ribbon and/or a correction ribbon comprises a linear motor having a coil-carrying slide which is movable with an alternating rectilinear movement, a toothed wheel for the feed movement of the ribbon, and a connecting mechan... | 12/08/1992 |
| 5158376 | Electronic typewriter An electronic typewriter has a reduced number of electrically-powered actuators and comprises a motor powering a differential motion transmission unit having first and second output members. Transmission control means powered by a solenoid moves a slider ... | 10/27/1992 |
| 5119115 | Thermal ink jet print head with removable ink cartridge In a thermal ink jet print head the ink is expelled in the form of small drops through a plurality of nozzles communicating with corresponding expulsion chambers for expulsion of the ink through the effect of rapid heating of heater elements contained in ... | 06/02/1992 |
| 5085531 | Cassette for a printing ribbon for typewriters A cassette for a printing ribbon for typewriters comprises a casing accommodating a supply spool, a receiving spool and a brake and take up device which operates on a tube of the supply spool and on the ribbon which is unwound from the supply spool. The t... | 02/04/1992 |
| 5018885 | Cassette for a printing ribbon for typewriters A cassette for a printing ribbon comprises a casing accommodating a supply spool which has a tube on which the printing ribbon is wound. An anti-unrolling element of plastics material comprises two portions of elongate shape, which are connected by means ... | 05/28/1991 |
| 5007749 | Cartridge including tension means for a typewriter correction ribbon A cartridge for a correction ribbon for typewriters comprises a container for a supply reel and a receiving reel. A tensioning device comprises a toothed ring on the supply rell and a spring which is pivoted in the container and which has one end engaged ... | 04/16/1991 |
| 5001566 | Document reading apparatus The original documents of A4 or A3 format are selectively read by a scanning apparatus which is integrated into a system for producing and transmitting images. The originals of A4 format are normally positioned on a fixed exposure surface and the original... | 03/19/1991 |
| 4995743 | Wire printer with step formation armature and method of assembly Each needle of the printer has an associated electromagnet with a generally elongate movable armature having a first end and a second end which can selectively push the needle during printing as a result of a pivoting movement within a step formation faci... | 02/26/1991 |
| 4983056 | Connectable cartridges for compatible typing and correction ribbons A cartridge for a typewriter typing ribbon comprises a container for accommodating the typing ribbon which can be of correctable or non-correctable type. A corrector cartridge can be removably fixed on the lower part of the container by engagement means. ... | 01/08/1991 |
| 4970605 | Digital image scanning device having an automatic background compensation circuit The background compensation circuit defines a background threshold signal in dependence on an average value between the positive-peak and negative-peak signals previously received from the elements for scanning the pixels of the image, and in dependence o... | 11/13/1990 |
| 4954888 | Apparatus for reading and digital processing of color images The apparatus for reading and digital processing of color images comprises groups of CCD sensing elements for reading the individual pixels forming the image. Each group of the sensing elements is associated with one primary color, for generating correspo... | 09/04/1990 |
| 4933794 | Head for reading a magneto-optical data carrier Data is recorded on a magneto-optical carrier (5), the magnetization of which in each recorded area is capable of reflecting a polarized laser beam (28,31,33) with rotation of the plane of polarization due to the Kerr effect in accordance with the directi... | 06/12/1990 |
| 4903302 | Arrangement for controlling the amplitude of an electric signal for a digital electronic apparatus and corresponding method of control In a digital system for amplitude modulation, the logical signal at acoustic frequency is modulated by means of an ultrasonic frequency signal, the duty-cycle of which can be varied by means of a program. More particularly, the modulating signal is genera... | 02/20/1990 |
| 4900169 | Print hammer damping mechanism for typewriters and like printing machines The print apparatus comprises a character-carrying element of the `daisywheel` type with flexible spokes which can be selectively positioned in front of a platen roller, a print hammer for moving a selected character towards the platen roller, an actuatin... | 02/13/1990 |
| 4897651 | Key with selective symbol display and keyboard using such key The key comprises a movable part guided in a fixed support on a base plate and contacts which are closed when the key is depressed against the action of a return spring. The symbol associated with the key is displayed through a window in the key top by an... | 01/30/1990 |
| 4881837 | Automatic sheet feeder The sheet feeder can be mounted on a typewriter or on a printer in a system for processing data. The sheets which are accommodated in a feed magazine are passed to the platen roller by friction stripper rollers. After the printing operation, the sheets ar... | 11/21/1989 |
| 4875035 | Arrangement for the display of processing data by means of pixels on a cathode ray tube The logic signals (S0, S1, S2, HL) which define the pixel are combined together with the synchronization signals (HS, VS) by a composer circuit (19) disposed in the display control, to form a single composite signal. The composer circuit (19) is connected... | 10/17/1989 |
| 4861176 | Cartridge including epicyclic gearing drive for a multistrike typing ribbon for printing machines A cartridge for a multistrike typing ribbon for printing machines engages a single drive shaft for unidirectional advance movement of the multristrike ribbon and comprises a container having a bottom and two arms which project from a rear wall and which e... | 08/29/1989 |
| 4856922 | Two-color printer The printer is mounted on a desk-top computer and can print both numeric characters and graphic and calculation symbols in two different colors. The characters and the symbols are provided in a relief configuration in accordance with a matrix of rows and ... | 08/15/1989 |
| 4847885 | System for measuring and automatically compensating for the distorsions of a connection between a telephone apparatus and a central voice processing unit The central unit (14) comprises a distortion sampler (16) including a spectral sound analyzer and a memory for recording the digital data of at least one reference sound. The central unit by means of the analyzer analyzes a sequence of such sounds which a... | 07/11/1989 |
| 4836852 | Ink for an ink jet printer The ink is formed by a solution of a direct dye in a mixture of water and glycol wetting agents, to which a pigment which is finely ground to particles of dimensions of not more than 1000 Å is added in dispersion, in a concentration of between 0.1 and 2%... | 06/06/1989 |
| 4834637 | Manufacture of tubular elements for ink jet printers The apparatus for manufacturing ink jet glass tubes includes a vertical mandrel which receives the tubes one at a time from a feeder and rotates them relative to a pair of gas nozzles for their heating. The tube is heated in an axially limited intermediar... | 05/30/1989 |
| 4826329 | Flexible bag, in particular for office machines The flexible bag comprises a container of flexible plastics material having an internal sheet and an external sheet which define a sealed chamber which can be filled with air at low pressure. The sealed chamber is composed of a series of tubes separated b... | 05/02/1989 |
| 4806033 | Ribbon cartridge for printing machines 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 e... | 02/21/1989 |
| 4806030 | Correction device for typewriters The correction device is applied to an electronic typewriter with a daisywheel and comprising an electric selector motor which selectively rotates the character-carrying daisywheel in the clockwise and the anti-clockwise directions for selecting the chara... | 02/21/1989 |
| 4805051 | Apparatus for recording and reproducing data on a magnetic recording medium Apparatus for recording and reproducing data on a magnetic recording medium (27) having a plurality of recording tracks (29) comprises a magnetic head (32) and a mechanism which selectively positions the head (32) with respect to the tracks (29) of the ma... | 02/14/1989 |
