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| Number | Title | Issue Date |
| 7336486 | Synthetic jet-based heat dissipation device A synthetic jet array in a computing device, such as a mobile computing device, to dissipate heat generated by a heat generating component of the mobile computer is described. In one embodiment, a microscale synthetic jet array is integrated within a heat generating... | 02/26/2008 |
| 7021847 | Marking device A marking device (10) comprises a housing (12) having a handle (16). A frame (20) is pivotally mounted in the housing aout a first axis (22). A marking head (40) mounted on the frame for translational movement in the frame b... | 04/04/2006 |
| 5953494 | Method for controlling a drawing apparatus, a drawing apparatus and a waveform recording apparatus Ruled lines printed on a graph paper g are optically detected by a vertical ruled line reading sensor and a horizontal ruled line reading sensor. Ruled line spacing Dp in a plotter coordinate system P is measured and compared with ruled line spacing Dg in... | 09/14/1999 |
| 5126754 | Ink jet printing density controller with programmable angle of travel look-up tables for a plotter This invention maintains a selected printed ink drop density in an image recording device such as an X-Y plotter having a cartridge of the type which emits discrete ink droplets onto a recording medium and wherein the cartridge is transported along two ax... | 06/30/1992 |
| 5121140 | Writing pressure-changing device for recording device or the like A writing-pressure changing device for use in a recording device or the like in which when one end of a pen holder is caused to ascend by a device such as a plunger. In this device the pen holder is pivotally moved with respect to a pivot, so that a recor... | 06/09/1992 |
| 4996651 | Cutting instrument improvement for X-Y plotter A cutting instrument improvement for a computer controlled X-Y plotter comprising an electric motor having a housing and a rotor mounted for rotation about an axis fixed with respect to the housing at a relatively high speed in response to the connection ... | 02/26/1991 |
| 4979380 | Automated dye pattern application system An automated dye pattern application system includes a support bed to support a mat or other dye receiving medium; perpendicular guide tracks supporting a carrier on which a dye spray head is mounted; stepper motors engaged between the tracks, the support... | 12/25/1990 |
| 4920422 | Processes and automatic devices for high-resolution writing on a support by projecting drops of colored liquids This invention relates to a device for automatically writing a polychrome graphic on a fixed support, comprising a tool-holder which bears a plurality of nozzles perpendicular to the support, each projecting a liquid of determined color and a computer whi... | 04/24/1990 |
| 4905015 | Apparatus and method for generating a variable line width The invention is a method and a plotter for automated drawing and writing that provides a drawn line of variable width, where the width is independent of the motion of the plotter pen or the shape of the line drawn. The apparatus includes a plotter having... | 02/27/1990 |
| 4903046 | Pen position regulator A pen exchange mechanism is disclosed, by which a plurality of pen chuck mechanisms holding pens on a carriage are disposed, and a slider is engaged with the carriage at a position corresponding to a pen, which should print, among said pens, printing bein... | 02/20/1990 |
| 4849771 | Plotter pen presence and type identification system An improvement to graphics pen plotters including a pen gripping mechanism for gripping a cylindrical bodied pen in a generally vertical orientation for sensing the presence and type of a pen in the gripping mechanism with a single sensor. There is a mult... | 07/18/1989 |
| 4833490 | Writing element with exchange mechanism In a device for exhanging objects, in particular writing instruments, between two holders (4, 5) open on one side, in which the object (6) is retained at least in one holder (4) by the cooperation of two retaining elements, one of which is a permanent mag... | 05/23/1989 |
| 4827293 | Symmetrical braking system for a graphic recorder A symmetrical braking system for a graphic recorder includes a generally cylindrical brake support supported by a carriage drive and having a combination of cam surfaces. A brake rotor is rotatable supported upon the brake support and defines an arrangeme... | 05/02/1989 |
| 4779348 | Data plotter A data plotter includes a table for supporting a record sheet, a carriage movable thereon along one orthogonal axis, and a recording device carried by the carriage and movable with respect thereto along the other orthogonal axis. Relative movement is effe... | 10/25/1988 |
| 4779104 | Pen plotter pen type identification system A pen type sensor for use in a graphics pen plotter wherein plotter pens are moved along a pre-established path between a pen holding area and a plotting area for reading a plurality of vertically oriented reflective indicia positions thereon to create a ... | 10/18/1988 |
| 4764880 | Compound plotting apparatus and related method of operation A compound plotting apparatus for rapidly producing an annotated design comprises a symbol printing device such as a matrix printer for printing an annotation directly on a worksheet or on a label which is deposited on the worksheet and a design line draw... | 08/16/1988 |
| 4754288 | Pen carousel, pen sensing and indexing In a multi-position graphics plotter pen carousel system employing a pen capping mechanism therein at each pen position for capping and uncapping pens held by the carousel, an improvement for allowing the sensing of pen presence at the pen positions and t... | 06/28/1988 |
| 4683476 | Drawing machine having automatically replaced writing members and apparatus therefor The body of a writing member is movable in translation between a rest position and a work position, at least partly under the action of a magnetic force, and is permanently held against at least one guide element carried by the support, by means of a magn... | 07/28/1987 |
| 4674191 | Method and apparatus for producing registered multiple overlay architectural drawings in a computer aided drafting system Pre-punched drafting sheets are placed in a pin registration bar and pin holes are marked or punched in the lower corners of the sheets at locations with fixed reference to the registration holes. The sheets are then loaded into a CAD pen plotter and the ... | 06/23/1987 |
| 4628326 | Apparatus for preventing drying-up of drawing needle pens A plotter for causing a pen carriage to pick up a drawing needle pen from a pen socket so as to perform drawing, comprises: a support plate located immediately under the pen socket and biased toward a pen tip; and an anti-dry pad formed on an upper surfac... | 12/09/1986 |
| 4567565 | Apparatus and method for pen-lift system A pen-lift system is provided which can achieve high speed plotting while maintaining line definition of drafting quality. The system includes a pen-lift mechanism for raising and lowering the pen, a pressure control system in order to provide a constant ... | 01/28/1986 |
| 4536770 | Reverse side marking plotter/printer pad Improved plotting and printing apparatus has a writing surface for supporting a printing medium and which has an opening for exposing the underside of the medium. A transparent plate is mounted to the supporting surface so as to permit placement onto that... | 08/20/1985 |
| 4511905 | Stylus recorder linearized drive system In the calligraphic printing apparatus disclosed herein, a writing stylus is carried by a flexing suspension including a pair of generally orthogonal arms, each arm being driven by a respective servo system which responds to stored data representing chara... | 04/16/1985 |
| 4500890 | Graphic recording system A graphic recording system wherein multiple recording elements are moved relative to a recording medium. The recording elements are selectively actuated for recording on the medium. A carriage supports the recording elements with the carriage and a record... | 02/19/1985 |
| 4489333 | Device for exchanging objects in particular writing instruments In a device for exchanging objects, in particular writing instruments, two substantially identically embodied holders (5, 5') which are open at one side are provided. These holders are movable relative to one another in a plane extending substantially at ... | 12/18/1984 |
| 4455751 | Automatic drafting device An automatic drafting device has a carriage with toothed wheels in meshed engagement with toothed racks extending across a planar support surface. A pressure regulation device is mounted on the carriage and regulates the pressure applied to a stylus holde... | 06/26/1984 |
| 4417258 | Bi-directional pen changer A bi-directional pen changer for use in an X-Y plotter is disclosed which requires only a single axis of motion for pen snatch, pen re-insertion, and plotting. The device is made up of two pen stables, one on each side of a pen carriage, for holding pens ... | 11/22/1983 |
| 4400704 | Plotter having continuously moving carbon paper handling system A plotting system (10) including a plotting device (40) for plotting on paper (52) is provided. The plotting system (10) includes a work surface (28). A supply source (50) of paper (52) to be plotted is disposed adjacent the work surface (28). A take-up r... | 08/23/1983 |
| 4398202 | Writing devices for plotting and recording apparatus A recording or plotting apparatus has a writing device which comprises a pen holder carrying a plurality of pens. A penholder assembly is movable from end to end of a gantry which is itself movable across a record surface such as a record sheet or card al... | 08/09/1983 |
| 4364056 | Interactive graphic system An interactive graphic system is provided for automatically recording lines, symbols or marks by inputting plotting information in a step-by-step mode in an interactive system. The systems comprise a data setter for specifying, among various predetermined... | 12/14/1982 |
| 4346445 | Portable alphanumeric and symbol drafting device A portable alphanumeric and symbol drafting device which essentially comprises a mechanically functioning keyboard unit, which is flexibly connected to an electronics package unit. Accordingly, the keyboard unit, which preferably weighs on the order of on... | 08/24/1982 |
| 4254552 | Inscribing system An inscribing system that is electronically automated for transcribing onto miniature carriers character information which will positively identify the human, animal or valuable article in which the carrier is embedded. The automated inscribing system inc... | 03/10/1981 |
| 4197550 | Apparatus for an automatic marking of drawings The apparatus is used for the automatic marking of drawings with alphanumeric and other drawing symbols. A carriage is designed to travel over the drawing without damaging the drawings. Means are provided to rigidly hold the carriage in place over the poi... | 04/08/1980 |
| 4186404 | Tracing table This tracing table of the type having two tracing arms, namely an upper arm and a lower arm, has the upper arm mounted in a plane located above that of the lower arm, in relation to the tracing plane, and the upper arm, in addition to the pen lifting mech... | 01/29/1980 |
| 4151536 | Device for inscribing graphic and alphanumerical symbols on a recording medium A writing head overlying a recording medium, in the form of a sheet with edges respectively extending in mutually orthogonal directions X and Y, carries a linear array of equispaced electrodes extending in the X direction over a fraction of the width of t... | 04/24/1979 |
| 4135245 | Plotter with automatic pen-changer An X-Y plotter is provided having an automatic pen changer comprising a pen repository, a memory for storing data identifying a pen selected by a user, a plot head for automatically fetching pens from and depositing pens into the repository, a processing ... | 01/16/1979 |
| 4104648 | Electric spark recording A graphic recording technique is disclosed for the enlargement of a relief configuration. A micro-stylus is used to scan the configuration laterally while measuring vertical irregularities in the surface; and a recorder stylus is synchronized therewith to... | 08/01/1978 |
| 4089262 | Apparatus for printing data on structural components This disclosure relates to a machine for applying characters to a structural component, such as an automotive chassis, engine block, or the like, and includes first and second means for moving marking means along first and second paths substantially norma... | 05/16/1978 |
| 4062648 | Plotter with adaptive velocity means for improving plotted line quality A plotter system is provided having an adaptive velocity means for improving plotted line quality by selectively varying the velocity of the plot head to produce smooth, substantially continuous motions of the plot head between data points, in accordance ... | 12/13/1977 |
| 4051483 | System for measuring and recording three dimensional configuration of object An encoder for converting a distance to an electric signal is connected with a computer to put a distance signal into the computer. Th encoder is put on a moire pattern obtained by interference between a standard grating and a deformed image of the standa... | 09/27/1977 |
