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An aircraft having vertical takeoff and landing capability provided with at least first and second laterally extending paddle wheels rotatable on a central axis perpendicular to the longitudinal axis of the aircraft fuselage and between its nose and tail.
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| Number | Title | Issue Date |
| 7246960 | Print head A needle guide (5) is composed of a first guide wall (5a) and a second guide wall (5b) arranged at a distance x from each other. Each of these guide walls is formed with through holes through which needles penetrate and which exten... | 07/24/2007 |
| 7037010 | Thermal printer The thermal printer of the invention comprises a frame, a print head tiltably mounted in the frame, and a spring carried by the frame and forming a member for urging the print head into its printing position, with a flexible sheet of conductors terminating at the pr... | 05/02/2006 |
| 6805503 | Wire dot printer head and wire dot printer A wire dot printer head of the present invention is provided with an abrasion preventive member in a yoke. The abrasion preventive member encloses the outer periphery of the armature support shafts. The yoke, together with an armature spacer having a plurality of cu... | 10/19/2004 |
| 6695495 | Constant density printer system An ink density closed loop control system for an ink ribbon of an impact printer having a reservoir roller formed of an ink absorbent material with at least one or more channels within the reservoir roller fluidly connected to a pump and ink supply. A tra... | 02/24/2004 |
| 6543944 | Wire dot printer head and wire dot printer using the same A wire dot printer head including a yoke, cores arranged in an annular form on the yoke, coils combined with the cores so as to fit the cores, armatures supported so as to be raised or lowered in respect to the cores, wires supported at the free ends of t... | 04/08/2003 |
| 5540508 | Print head for an impact dot printer A print head for an impact dot printer capable of printing on a printing medium is provided. The print head includes a plurality of print wires and a front end guide having guide holes for guiding the print wires to predetermined print positions. The fron... | 07/30/1996 |
| 5399032 | Print head having replaceable print elements for wire dot-matrix printer A print head for a wire dot-matrix printer includes an element base, and a plurality of print elements engaged with and supported by the element base. Each of the print elements includes a print wire, an actuator moving the print wire, and a base supporti... | 03/21/1995 |
| 5349903 | Printing head in wire-dot printer A printing head provided in a wire-dot printer includes a plurality of first wire pins arranged in accordance with a predetermined rule, ends of the first wire pins facing a printing plane, a first driving mechanism for reciprocating the first wire pins i... | 09/27/1994 |
| 5232295 | Wire print head and process for fabricating it A permanent magnet suitable for use in a wire print head is formed of plural split segments. Each split segment is formed by compressing metal powder in a punching direction in the presence of a magnetic field that is perpendicular to the punching directi... | 08/03/1993 |
| 5194015 | Device for electrical connection between printing head and drive circuit therefor An electrical connection device for a printing head of a dot printer and a drive circuit therefor, which comprises flexible printed circuits easily connectable to solenoids accommodated in the printing head, and a male connector connected to these circuit... | 03/16/1993 |
| 5175922 | Method for the manufacture of an armature assembly for matrix print heads of the hinged-clapper-armature construction A method for production of an armature device group for matrix print heads of the clapper-armature construction is based on connecting and jointly processing prefabricated parts (1, 2) such that elongated armatures with wide armature arms (4) and narrower... | 01/05/1993 |
| 5102245 | Print head A print head for a dot printer having a plurality of needles for printing by projecting the needles selectively from the print head. The print head has a solenoid base having a plurality of solenoids arranged in a circle thereon for driving the needles, a... | 04/07/1992 |
| 5088844 | Impact dot print head and printer including same A printer including an impact dot print head for driving a plurality of print wires mounted on the cantilevered end of print levers is provided. The print head includes a stopper positioned to be impacted by a print lever returning from a print position t... | 02/18/1992 |
| 5056941 | Print head assembly of a printing device A print head assembly of a printing device, in which a supporting member flexibly supporting a plurality of armature members, and a permanent magnet member urging the armatures in one direction by means of its magnetic force and arranged between a head bo... | 10/15/1991 |
| 5054944 | Serial printer having a carrier cable connected to a movable print head A serial printer includes a print head movable along a print line of a recording sheet. A flexible carrier cable is attached to the print head for supplying a drive signal thereto. One end of the carrier cable is fixed to the movable print head, but its l... | 10/08/1991 |
| 5009528 | Dot print head A dot print head comprising a yoke, a plurality of cores formed integrally with the yoke in an annular arrangement in the peripheral portion of the yoke, solenoid coils wound respectively around the cores, armatures fixedly provided respectively with styl... | 04/23/1991 |
| 5002412 | Armature guide for wire dot print head A print head for use in a wire dot printer has a plurality of wires, an armature connected to each of the wires, a core of a magnetic circuit which is disposed in opposing relation to the armature, a resilient member for biasing the armature in a directio... | 03/26/1991 |
| 4795283 | Print head for a dot-printer A print head for a dot-type printer has a nose having a wire point guide thereon and a plurality of print wires slidably guided in the wire point guide, and a nose base contacting surface thereon, a solenoid base having a magnetic system for moving the re... | 01/03/1989 |
| 4723854 | Dot-matrix print head and apparatus for supporting pivotable armatures A dot-matrix print head including a plurality of armatures, each of which is connected at its distal end to a print wire and has at its proximal end a pair of lateral extensions which extend in lateral opposite directions from the proximal end. The print ... | 02/09/1988 |
| 4708502 | Mounting mechanism for a print head A mounting mechanism for releaseably mounting a print head to the carriage of a printer includes a pair of pivotable levers respectively located on opposite sides of the print head. A spring member biases the levers in a predetermined direction. The lever... | 11/24/1987 |
| 4700625 | Needle-carrying head for a printing machine A needle-carrying head for a printing machine has needles controlled by electro-magnets. The coils of the electro-magnets are soldered to pins carried by support ears for the coils. The pins pass through printed circuit boards to which they are soldered. ... | 10/20/1987 |
| 4613246 | Printer with mounting structure for print head A printer having a print head with a mounting portion, and a carriage with a supporting structure engaging the mounting portion of the print head to hold it in place on the carriage. The supporting structure includes a lateral positioning portion for posi... | 09/23/1986 |
| 4611393 | Process for producing a dot printer head The invention provides a process for producing a dot printer head wherein a plurality of needles having their ends arranged along a straight line have gradually increasing lengths towards opposite outer end ones thereof so that when the needles are being ... | 09/16/1986 |
| 4607967 | Printing apparatus A printing apparatus having a platen for supporting a sheet of paper, comprising: a carriage movable along the length of the platen, and including an upward protrusion having a top surface which includes a first slant part inclined downwardly in a directi... | 08/26/1986 |
| 4587724 | Dot matrix print head This invention involves methods and apparatus relating to the assembly and structure of a dot matrix print head. The invention includes a single unit, coil assembly of a bobbin, coil, and clapper which can be removeably placed as a unit among fixed pole p... | 05/13/1986 |
| 4585361 | Actuator for dot matrix printhead An improved dot matrix actuator is provided which includes a magnetic circuit formed of a yoke assembly and a pivotal armature. The armature is pivotally supported with respect to the yoke by means of a flexure assembly which eliminates the need for a tru... | 04/29/1986 |
| 4525084 | Device for adjusting position of printing head of printer A device for adjusting the position of the printing head of a printer has a leaf spring received in a groove formed in the carrier of the printer. The spring is bent into a doglegged form such that the spring force is applied to both ends of the carrier b... | 06/25/1985 |
| 4502799 | Dot matrix print head A fastener-backstop member secures the coil assemblies to the housing of a print head by means of a flange portion at one end and a plurality of fingers at the other end thereof. The member has a flat surface between the ends thereof to provide a home pos... | 03/05/1985 |
| 4452542 | Serial printer The print head of a serial printer includes a protruding plug which is seated and locked into a receptacle on a translating carriage. An endless belt has teeth engaged in a correspondingly contoured groove of the carriage for positive connection between c... | 06/05/1984 |
| 4444519 | Printers A printer capable of operation as a dot matrix printer, and, alternatively, as a daisy wheel printer, the printer including the carriage providing for the mounting of a daisy wheel and associated hammer solenoid or a dot matrix printhead, the carriage inc... | 04/24/1984 |
| 4433926 | Printer head A printer head having a circular first yoke, a cylindrical permanent magnet fixed on the circular first yoke, a (n) number of electromagnets (n is an integer) positioned on a circle on the first yoke within the permanent magnet having predetermined angle ... | 02/28/1984 |
| 4426168 | Serial impact printer for multicolor printing A serial impact printer capable of performing multicolor printing at high speed. In this printer an inked ribbon divided into multiple colored bands each along the longitudinal direction thereof is arranged to extend and move in a direction intersecting t... | 01/17/1984 |
| 4425047 | Printing machine capable of printing characters on long and short paper sheets A printing machine capable of printing characters on two kinds of paper sheets, long paper sheets and short paper sheets, comprises two paper holder members movably provided relative to a paper feed roller to cause the long paper sheet to be clamped betwe... | 01/10/1984 |
| 4389128 | Print head for a dot matrix printer A print head for use in a dot-matrix printer consisting of a plurality of print wires, a guide member with a nose portion for guiding the print wires, a plurality of armatures, an armature support member for supporting one end of the armatures correspondi... | 06/21/1983 |
| 4381896 | Print head mounting assembly with form adjustment An assembly for mounting a print head upon a carriage having an adjustable collar and a slotted support which receive opposing ends of an elongated shaft secured to the print head. The shaft is accurately positioned on the carriage by means of openings in... | 05/03/1983 |
| 4338585 | Solenoid having a hinged armature Hinged armature magnet for matrix printer head with a hinged armature (24), which near its one end is fixed one end of the magnet yoke (12) by means of a mounting part (48) so as to be able to swing out against spring force, wherein the hinged armature (2... | 07/06/1982 |
| 4200401 | Print wire solenoid A print wire solenoid for high-speed operation is made with two major components or subassemblies. The first is a plastic injected unitary bobbin or stator assembly which incorporates a core ring and a core, and a stator which forms a bobbin for receiving... | 04/29/1980 |
