Did You Know...
...that the Slinky toy was the result of a failed attempt by engineer Richard James to produce an antivibration device for ship instruments? His goal was to develop a spring that would instantaneously counterbalance the wave motion that rocks a ship at sea. Instead, he developed the Slinky.
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| Number | Title | Issue Date |
| 7374354 | Armature, wire dot printer head and wire dot printer In order to realize a weight saving and prevent a concentration of stress to thereby obtain durability endurable for high-speed printing, an armature of the present invention has an arm that is formed into a long-sized plate-like shape and holds a printing wire at i... | 05/20/2008 |
| 7331726 | Armature, wire dot printer head and wire dot printer In order to obtain joining force endurable for high-speed printing and realize an enhancement in magnetic characteristic, a plate-like arm for supporting a printing wire is laminated with a magnetic circuit forming member that is composed by laminating plural plates... | 02/19/2008 |
| 7331229 | Magnetic null accelerometer An accelerometer system includes a capacitor plate fixed within a housing and a flexure plate positioned substantially parallel to the capacitor plate a distance therefrom. The distance varies in response to acceleration forces acting upon the flexure plate such tha... | 02/19/2008 |
| 7329059 | Wire dot printer head and wire dot printer A wire dot printer head of the present invention has an armature that has an arm supporting a printing wire and pivotably provided at the position opposite to the core, and a coil spring that one end comes in contact with the arm for urging the armature in the direc... | 02/12/2008 |
| 7314323 | Wire dot printer head and wire dot printer A wire dot printer head which has an armature spacer having plural notches accommodating support shafts of plural armatures respectively supporting a printing wire, and an abrasion preventive member provided between the armature spacer and a yoke holding the support... | 01/01/2008 |
| 7258499 | Wire dot printer head and wire dot printer A wire dot printer head which has an armature spacer having plural notches accommodating support shafts of plural armatures respectively supporting a printing wire, and an abrasion preventive member provided between the armature spacer and a yoke holding the support... | 08/21/2007 |
| 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 |
| 7007527 | Electrified cylindrical lock An electrified cylindrical lock having a reversible solenoid that can be easily changed over between active push and active pull. The solenoid includes a coil and an armature that may be assembled for an active push or an active pull of a latch member. The coil has ... | 03/07/2006 |
| 7008126 | Wire dot printer head and wire dot printer In the wire dot printer head and wire dot printer of the present invention, a plurality of armatures are rockably mounted in positions corresponding to a plurality of cores. On the end face on the core side of a wire, a plurality of receiving members are provided. A... | 03/07/2006 |
| 7003993 | Electrified cylindrical lock An electrified cylindrical lock having a reversible solenoid that can be easily changed over between fail safe and fail secure. The solenoid includes a coil and an armature that may be assembled for an active push or an active pull of a latch member. The latch membe... | 02/28/2006 |
| 6994482 | Wire dot printer head and wire dot printer In order to restrain a flux loss for obtaining magnetic characteristic required for high-speed printing, a wire dot printer head has armature 4 having a pivot shaft serving as a center of a pivot and pivotably provided so as to oppose to plural cores formed o... | 02/07/2006 |
| 6872016 | Impact dot print head and a printer including the same In an impact dot print head there is provided a fitting structure for fitting an inner periphery-side cylindrical portion of a yoke and an inner periphery-side ring-shaped portion of an armature spacer with each other so that the inner periphery-side cylindrical por... | 03/29/2005 |
| 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 |
| 5611631 | Impact printer with reduced electrocorrosion using Zener diode for static discharge An impact printer has a print head in which demagnetizing coils are embedded in a filling compound. A resistor or Zener diode is connected in series between the print head and the printer's frame ground, to prevent current flow through the filling compoun... | 03/18/1997 |
| 5527117 | Braille printing solenoid housing Disclosed is a printing solenoid specifically adapted and improved for the printing of Braille dots and in particular interpoint Braille. A plunger and printing shaft are fixably mounted together and the combination mounted for slidable movement in a rear... | 06/18/1996 |
| 5435656 | Back stop structure for matrix pin print head A matrix pin print head is set to a fixed distance (17) relative to a print counter support (2), where a recording substrate (3) rests on the print counter support (2). An ink ribbon (4) is guided in front of the print pins (5) between the matrix pin prin... | 07/25/1995 |
| 5372437 | Print head of wire-dot printer and production method thereof A print head of a wire-dot printer and a production method thereof, in which superhard chips are attached to contact surfaces of an armature and a core by brazing. The superhard chips can be readily secured to the contact surfaces of the armature and the ... | 12/13/1994 |
| 5328279 | Dot matrix printer head An ink-supplied wire dot matrix printer head for actuating wires with ink attached to tip ends thereof into contact with a sheet of print paper to transfer ink to the sheet, thereby forming ink dots thereon. The ink-supplied wire dot matrix printer head i... | 07/12/1994 |
| 5312195 | Electromagnetic drive mechanism for the printing pin of a print head An electromagnetic driving device for driving a print needle of a printer employing an E-shaped magnetic yoke. In order to improve print speed, the armature and arms of the yoke are specifically dimensioned. The precise lengths and widths of the armature ... | 05/17/1994 |
| 5312194 | Printing head for printer A printing head for a printer comprises a plurality of armatures arranged radially, a drive section including a plurality of drive units which support outer ends of the respective armatures to swing the same, respectively, a plurality of needles engaged r... | 05/17/1994 |
| 5295750 | Wire-dot impact printer In a wire-dot impact printer having a capacitance detector for detecting a displacement of each armature by a sensor electrode arranged opposite the armature, a space is formed between each sensor electrode and its associated armature, and a shield patter... | 03/22/1994 |
| 5290113 | Wire dot printing head A spring charge type wire dot printing head includes front cores 35 and rear cores 36 that are disposed in circles. The front and rear cores are used in pairs, and either one of these paired cores is wound with a coil 39 or 40. Since the inductance of the... | 03/01/1994 |
| 5281037 | Wire dot print head and method for manufacturing same An improved wire dot print head for increased integrated density is provided. The wire dot print head includes a frame. A plurality of drive coils are mounted within the frame. A lever for driving print wires has a print wire mounted at one end and its ot... | 01/25/1994 |
| 5071267 | Actuation magnet for a printing stylus of a matrix printer The invention relates to an actuation magnet for a printing stylus (11) of a matrix printer, in which an armature (12) of the plunger type connected to the printing stylus (11) is guided in the cylindrical inner space of two soft-magnetic pole pieces (6,7... | 12/10/1991 |
| 4749976 | Solenoid A solenoid-type magnet drive, including a coil surrounding in parts an axially movable armature, and a housing for mounting the coil, further includes an attenuating device which comprises an attenuating disk positioned abutting centrally one end of the a... | 06/07/1988 |
| 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 |
| 4562446 | Ink-dot printer with magnetic ink attracting and retention preventing means An ink-dot printer comprises a magnetic ink storage tank storing magnetic ink, a pair of pole plates facing each other so as to define a slit one end portion of which is contacted with the magnetic ink supplied from the magnetic ink storage tank, an elect... | 12/31/1985 |
| 4561790 | Wire matrix print head apparatus The invention is a magnetically actuated clapper-style armature wire matrix print head. A light weight highly reliable and low cost design is achieved by utilizing single molded parts wherever possible. A unitary molded straight line channel wire matrix w... | 12/31/1985 |
| 4513661 | Dot matrix line printer A dot matrix line printer/plotter apparatus for producing hard copy printout of digitally represented data. The apparatus utilizes one or more hammer banks, each mounted so as to shuttle across a paper web fed therepast. Each hammer bank carries a plurali... | 04/30/1985 |
| 4490057 | Print wire solenoid A matrix print wire solenoid used in a wire matrix printer and including an enclosure member releasably secured to one end of the solenoid by a spring member deformed by the outer surface of the enclosure member to pre-load the enclosure member and an ene... | 12/25/1984 |
| 4487515 | Multiple action print head control circuit for a dot matrix printer A dot matrix print head control circuit is capable of selectively requesting and receiving a predetermined set of print head control data from a digital data processor which successively transmits plural sets of such digital data and corresponding data ac... | 12/11/1984 |
| 4484170 | Dot matrix print head solenoid assembly A plurality of solenoid bobbins or bobbin wound coils are collectively attached to and supported from one surface of a printed circuit board and the coil wires are securely connected to the conductors on the board.... | 11/20/1984 |
| 4480934 | Ballistic print wire actuator using a telescopic armature A print wire actuator using a telescopic armature pair is presented. The actuator is disposed to propel a print wire through a predetermined distance from a rest position toward a recording medium. The armature pair moves by electromagnetic force over a f... | 11/06/1984 |
| 4468142 | Pint wire actuator A solenoid-type print wire actuator includes a unitary one-piece bobbin formed of a magnetically permeable material and having two axially spaced-apart annular grooves in the outer surface thereof. An electromagnetic coil is wound on the bobbin. A dumbbel... | 08/28/1984 |
| 4441830 | Printing solenoid A dot matrix print actuator of low cost and compact rectangular design is constructed of flat, mild steel stock. An armature is engageable with a spring loaded print wire which is guided through a passageway in the poles of the actuator which are on eithe... | 04/10/1984 |
| 4389126 | Serial impact printer having two printing modes A serial impact printer has two printing modes, one being a formed-character mode and the other a dot matrix mode. A plurality of dot matrix wires are disposed behind a character carrying member having characters on fingers. One of the wires impacts a sel... | 06/21/1983 |
| 4377348 | Printer head for serial dot printer A serial printer head is provided which comprises a sandwich structure (1,3,5) of a first circular yoke plate (1), a cylindrical magnet (3) and a ring shaped second yoke plate (5); a plurality of electromagnets (2,4) positioned on the first yoke plate (1)... | 03/22/1983 |
| 4373438 | Dot printer A rounded end on a pivoted arm impacts a print medium through an ink ribbon to form a printed dot on the print medium. For printing, a wire drawn by an electromagnet acts on the arm between the pivot axis and the rounded end. A plurality of arms and elect... | 02/15/1983 |
| 4371274 | Apparatus for dot-matrix printing with proportional character spacing An apparatus for dot-matrix printing with proportional character spacing utilizes a conventional character generator for generating characters with fixed spacing in which a matrix storage area of equal size is assigned to each character, regardless of the... | 02/01/1983 |
| 4358795 | Graphic scanning and printing device A graphic scanning and printing device comprising a scanning element having a plurality of metal bars arranged in series inclined at 10° and movable into engagement with a graphic sign to be reproduced, written in electrically conductive ink, to produce ... | 11/09/1982 |
