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| Number | Title | Issue Date |
| 6994441 | Adaptive reflecting system A system which features an actuator mechanism for controlling orientations of reflecting surfaces of an optical reflector or antenna is disclosed. As integrated into the system, the actuator may control both pan and tilt characteristics of reflective surfaces to cre... | 02/07/2006 |
| 6821035 | Line printer with staggered magnetics An impact printer with a hammerbank having print hammers retained by a permanent magnet for impacting a print ribbon, and a mechanical driver for moving the hammerbank across print media. First and second coils for each hammer are wrapped around first and second pol... | 11/23/2004 |
| 4871271 | Printing head for a wire dot printer A printing head for use with an electrodynamic type wire dot printer includes an electrodynamic wire actuator disposed in a magnetic field to be deformed by an electromagnetic force, a printing pin fixedly supported by the electrodynamic wire actuator, an... | 10/03/1989 |
| 4859095 | Printing head with current passing through the print wire In a printing head, an actuator pin positioned within a magnetic field is bent to form at least one V-shaped portion and is fixed at the end portion thereof. When current flows in the actuator pin during printing, the actuator pin is caused to be expanded... | 08/22/1989 |
| 4732498 | Needle matrix printer The printer comprises a series of needles (1) each associated to an electric lead (8) which extends in the gap of a permanent magnet (11). The extremities of each lead are fixed to respective supports (9,10) and are selectively connected to a current sour... | 03/22/1988 |
| 4600322 | Needle matrix printer The needles (1) of this printer are fed by an electrical conductor (10) associated with the secondary of a step-down transformer (9) connected to a current pulse generator (8). The needle (1) having been placed in the magnetic field of a permanent magnet ... | 07/15/1986 |
| 4590853 | Modular print head A print head for use in a dot matrix printer or the like which comprises a plurality of non-magnetic frames which carry aligned magnets, the frames being arranged in a stack with spaces formed by projecting parts on the frames between the magnets carried ... | 05/27/1986 |
| 4493568 | Dot matrix printhead employing moving coils Printing apparatus of the dot matrix type comprising a plurality of print wire actuators employing moving coils. The wire printing tip of each actuator is activated by the coil magnetic field interacting with an efficiently applied magnetic field substant... | 01/15/1985 |
| 4465386 | Impact type dot printer A printing head adapted to be moved for scanning in a direction perpendicular to the direction of feed of a paper is provided with a sole printing element (printing hammer) adapted to be driven in an impacting manner by an electromagnetic driving device. ... | 08/14/1984 |
| 4364681 | Printer having a linear motor A linear motor for driving a dot printer head includes a carriage carrying print head. The carriage is displaced by a drive system on a linear guide rail. The drive system is a linear motor having an armature wound on a support situated on the carriage. T... | 12/21/1982 |
| 4362405 | Moving coil type printing head A moving coil type printing head comprises a cantilevered printing lever comprised of a leaf spring having a printing element at its free end. The printing lever has a base portion supported by a holding member, two resilient leg portions integrally exten... | 12/07/1982 |
| 4349283 | Hammer for dot matrix printer Each hammer includes a frame-like portion with a recess into which an electrically energizable flat coil is received. Affixed to opposite sides of the frame portion, and extending therefrom over the recess in contact with the sides of the coil, are therma... | 09/14/1982 |
| 4288167 | Printhead and blades therefor A printhead for a dot matrix impact printer comprises a stack of thin printing blades each including a flat spiral coil mounted in a rim which is in turn connected by flexible mounting arms to a mounting portion. Each blade has an arcuate printing arm ext... | 09/08/1981 |
| 4260269 | Split stackable printing blades for matrix printer head Flat, stackable printing blades for use in an impact printer head of the dot-matrix type, each blade including a conductive coil fastened within a central aperture of a conductive frame having a pair of arms resiliently connecting the coil frame to a stat... | 04/07/1981 |
| 4218150 | Matrix printer A moving coil mechanism is utilized to operate each individual print wire of a matrix printing head. Static magnetic fields for the moving coil mechanism may be provided by permanent magnets. Also disclosed is a method for compensating varying frictional ... | 08/19/1980 |
| 4129390 | Stacked blade matrix printer heads A printer head for use in an impact printer of the dotmatrix type utilizes a stack of pivoted thin blades, each having a printing tip at one end thereof. A pancake coil is attached to each blade for initiating selective independent movement thereof within... | 12/12/1978 |
| 4022311 | Electrodynamic actuator An actuator, which in a preferred embodiment, is shown in a wire matrix printer, and includes a magnetic structure having a support member associated therewith. When used in a wire matrix printer, the actuator includes a plurality of output members (in di... | 05/10/1977 |
| 3971311 | Striking device for dot printer Striking device for a dot printer, comprising an electrodynamic coil connected with a striking hammer, subjected to the action of at least one magnetic field substantially perpendicular to its plane and connected to a fixed support by means of a deformabl... | 07/27/1976 |
