Bizarre Patents
Mountable Printable Placard With Headband
A resilient headband in a shape for being mounted on the head of the user. The headband is equipped with a longitudinal slotted member for holding a placard.
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| Number | Title | Issue Date |
| 7230812 | Predictive applications for devices with thin dielectric regions It is possible to predict with acceptable accuracy the time to failure of a device having a thin gate dielectric in a field effect transistor. Such prediction is based on the realization that for such thin dielectric multiple dielectric breakdown occurs before devic... | 06/12/2007 |
| 7056211 | Device and procedure for random draws based on the modality of prior realization of the draw A gaming machine device is provided for the resolution of the modality of prior draw for installation in an anthropometrical position that facilitates display to allow a player's interaction in a game. The device includes: a central processing unit connected to a mo... | 06/06/2006 |
| 7005954 | High current long life inductor An inductor for high current applications includes a nonconductive, tubular form which defines a tube axis and has a cylindrical outer surface. The outer surface is formed with a groove that extends helically about the tube axis. The inductor further includes a coil... | 02/28/2006 |
| 6950004 | Quadrilateral electromagnetic coil assembly Prior art electromagnetic coil technology in tattoo machines employs a round steel post to alternately repel and attract an armature bar retained by a spring, reciprocally moving a needle bar and attached needle groupings into and out of the skin in the act of tatto... | 09/27/2005 |
| 5906157 | High speed impact print hammer An impact hammer assembly for a high speed printer includes first and second permanent magnets having opposite poles disposed adjacent to each other and having a gap therebetween. The magnets create flux lines extending across the gap. A print hammer incl... | 05/25/1999 |
| 5743665 | Printer integrated driver and hammerbank A printer with a reciprocally moving hammerbank with a plurality of hammers thereon is disclosed including a magnet for retaining hammers on the hammerbank of the printer from a firing position. A coil overcomes the magnetism of the magnet by a circuit fo... | 04/28/1998 |
| 5413421 | Printing head device A printing head device according to the present invention includes a plurality of printing pins corresponding to respective dots, a plurality of first pin drive plates having the printing pins fixed thereon and having surfaces on which first electrodes ar... | 05/09/1995 |
| 5383399 | Zero hammer adjustment drum printer control technique A method and apparatus for controlling the adjustment of printer hammers which impact against an associated moveable member on which characters are present. Each hammer includes a coil which is energized at the appropriate time, taking into consideration ... | 01/24/1995 |
| 5381064 | Print wheel motor for encoder A plurality of stepper motors, each of which comprises a stator assembly and a rotor, are axially aligned to form with a control system an encoder for use in a printing apparatus. The rotors constitute print wheels which support different print characters... | 01/10/1995 |
| 5373784 | Type-wheel resetting mechanism for printer In the type-wheel resetting mechanism for the downsized printer: a resetting cam portion (13) is provided in a drive gear (12) to save the number of components and to eliminate assembly and adjusting operations of the cam portion (13) and the drive gear (... | 12/20/1994 |
| 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 |
| 5344242 | Printer hammerbank with low reluctance magnetics The specification describes a low reluctance magnetic circuit for a dot matrix line printer for retaining hammersprings by the magnetic circuit having pairs of pole pieces formed of magnetically conductive sheets having a space for receipt of a permanent ... | 09/06/1994 |
| 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 |
| 5290112 | Matrix print head, in particular serial matrix pin print head A matrix pin print head with a print pin guide casing (7) and a print pin drive casing (9) comprises an electromagnetic drive (12). The electromagnetic drive (12) comprises a magnet yoke (13) with an electromagnetic coil (14) disposed on a magnet yoke arm... | 03/01/1994 |
| 5241904 | Dot like printer employing overlapped current applying sequence to coils of different groups A dot line printer for carrying out printing on a print paper while shuttling a hammer bank back and forth in a direction to traverse the print paper. To lower the peak level of the current flowed in an electromagnetic coil provided in association with a ... | 09/07/1993 |
| 5192148 | Dot line printer having improved comb yoke A hammer bank assembly including a hammer base, a plurality of leaf spring type printing hammers, permanent magnets, a comb yoke and electromagnetic coils. The comb yoke has a base portion positioned on the permanent magnets and police portions secured by... | 03/09/1993 |
| 5188465 | RMS power controller for dot-matrix printers Method and apparatus for use with dot-matrix printers to ensure that the maximum heat dissipation of critical components associated with the printhead is not exceeded during high density printing. The number of dots to be printed are determined by a count... | 02/23/1993 |
| 5152217 | Printer having improved hammerbank airflow An improved hammerbank in a dot matrix line printer has two different sets of staggered apertures therein along the length thereof for drawing pressurized air at the outside of the hammerbank therein to provide turbulent, high velocity cooling air in the ... | 10/06/1992 |
| 5099383 | Print head activating circuit for a wire dot printer A print head activation circuit for a wire dot printer includes a first switch and a second switch. A CPU produces a printing timing control signal. A first driving signal-generating circuit produces a first driving signal pulse having a pulse width T | 03/24/1992 |
| 5046871 | Actuator for print hammer An actuator for actuating a print hammner includes a yoke made of a magnetic material, an electromagnetic coil mounted on the yoke, and an armature rotatably supported by bearings mounted on opposite sides of the yoke. Upon excitation of the electromagnet... | 09/10/1991 |
| 4995744 | Impact printer actuator using magnet and electromagnetic coil and method of manufacture A print actuator for a dot matrix printer has a stator with a frame, at least two ferromagnetic poles and at least one permanent magnet; and at least one electromagnetic coil surrounding the magnet. The magnet can generally hold an armature in a home posi... | 02/26/1991 |
| 4944222 | Printer device with noise reducing impact hammer Printer device in which a striking movement is imparted to a striking member (6) for transmitting a print (5) via an ink ribbon (3) to a paper (2) or the like bearing against an abutment (1). The striking movement of the striking member (6) is effected by... | 07/31/1990 |
| 4897557 | Electronic control system, in particular for a printer Such electronic control systems contain safety circuits for device components endangered by excessive currents or excessive voltages, which are constructed only for a pulse operation and not for higher relative switch-on times. In order to shield the effe... | 01/30/1990 |
| 4879947 | Printhead which minimizes stray magnetic flux A dot matrix type printer head in which delays in the release of print hammers are eliminated by providing release coils only in alternate hammer positions, or alternatively, activating at one time only release coils in one of even-numbered and odd-number... | 11/14/1989 |
| 4875409 | Magnetic print hammer actuator protection circuit In a printer in which drive transistors coupled to hammer drive coils control energization of the coils within each of a plurality of magnetic print hammer actuators to provide firing of hammer springs associated with the print hammer actuators, leakage o... | 10/24/1989 |
| 4874265 | Impact mechanism for impact printer An impact mechanism for use in an impact printer, to deliver a printing force to drive a character element against a platen by means of a print tip movable toward and away from the platen. A rockable bail bar having an axis of rotation substantially paral... | 10/17/1989 |
| 4867059 | Impact printer print mechanism and method of manufacture Electromagnets and spring-damper units respectively impart forward movement and rearward movement to slider members having hammer faces at their forward ends and armatures intermediate their lengths. The electromagnets and spring-damper units are mounted ... | 09/19/1989 |
| 4852481 | Print hammer mechanism A print hammer mechanism for use in an impact printer such as a band printer or other printer which has printing elements which are impacted to make impressions on paper or other record medium. The hammer of the mechanism is impacted by dual armatures in ... | 08/01/1989 |
| 4852480 | Dot line printer with individually replaceable printing head In printing heads for a dot line printer, a plurality of which are arranged in line on the reciprocal frame and impact printing wires toward a platen by the driving force of electromagnets excited with the basis of the printing commands, the printing head... | 08/01/1989 |
| 4842429 | Type face striking system in an office writing machine A type face striking system for striking a type face to produces an imprint on a record carrier in a writing machine, the system including; an electromagnetically actuatable printing hammer movable under the influence of an electrically generated magnetic... | 06/27/1989 |
| 4833981 | Field replaceable print hammer A hammer assembly for incorporation in a hammer bank assembly useful in high-speed impact printers of the type generally employed in data processing systems is disclosed to comprise an impact tip carried on a rigid coil structure disposed in a permanent m... | 05/30/1989 |
| 4812062 | Print hammer with flux detection for print pressure control A recording apparatus in which recording on a recording medium is perfomed by impacting against the recording medium. This recording apparatus has a recording unit which is constututed by a recording element supported so as to be reciprocatively movable r... | 03/14/1989 |
| 4806031 | Uniform print density and registration in an impact printer Commencing with the first print hammer(s) "out", or actuated, on each print line the hammer drive current is boosted 10% for a period, ranging from 25%=650 microseconds for single part forms to 50% for multi-part forms, of the total print hammer flight ti... | 02/21/1989 |
| 4771689 | Unitary spring armature for a dot matrix printer An elongated unitary spring armature is disclosed for use in dot matrix printers. The spring armature has an elongated triangular shape with attachment means located adjacent to the base and means for securing the impact tip located adjacent to the apex. ... | 09/20/1988 |
| 4762063 | Bar code printing method A bar code printing method for generating extended height bar code image target patterns and human readable matter in combination therewith on bar coded items, such as labels, forms, papers and the like which enables the unmodified utilization of currentl... | 08/09/1988 |
| 4756246 | Lubrication system for print hammer pivot pin The disclosure describes in detail one of the most serious problems in connection with maintaining the operating life of print hammers at the high speeds of todays printers. Also described in detail is a structural arrangement to solve this problem withou... | 07/12/1988 |
| 4708501 | Electromagnetic hammer printing device including a limited action spring force An electromagnetic printing hammer device including a permanent magnet having a pair of electromagnetic pole-faces spaced apart from each other by a gap. A hammering element formed of a permanent magnet at least in one portion thereof is located in the ga... | 11/24/1987 |
| 4706561 | Printing activator test circuit generating back EMF Detecting the inoperability of a plurality of printing element drivers without printing involving sequentially energizing each of the drivers with a shortened time duration pulse sufficient to produce a signal in indicating operability and/or inoperabilit... | 11/17/1987 |
| 4703689 | Two lever print actuator with aligned pivots and energy transfer surfaces A two-lever electromagnetic print actuator having a pivoted bellcrank armature and an end-pivoted print hammer is urged to free-flight by energy transfer at an energy transfer contact surface. The armature pivot, print hammer pivot and energy transfer sur... | 11/03/1987 |
| 4678355 | Print tip contact sensor for quiet impact printer An impacting element for an impact printer having a platen, selectable character elements and means for driving the impacting element to impart a printing force to a selected character element, to drive it against said platen for a contact period, the imp... | 07/07/1987 |
