Did You Know...
...that in the early 1940s GE engineer James Wright was charged with a task of utmost importance to the war effort: develop a cheap substitute for rubber that could be used to produce tires, gas masks and a whole host of military gear. Wright tackled the task diligently -- and wound up inventing Silly Putty.
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| Number | Title | Issue Date |
| 7428791 | Display system having a magnetic drive assembly and associated methods A display system may include a frame, column connection members connected to the frame, and column members rotatably connected to the column connection members. The display system may also include a magnetic drive assembly carried by the frame that engages the colum... | 09/30/2008 |
| 7353593 | Method for assembling micro structures A method for making three-dimensional structures comprises providing a plurality of components, each of which is moveably coupled to a substrate. The components may be pivotally coupled to the substrate by one or more micromachined hinges. The components are moved u... | 04/08/2008 |
| 7265681 | Light emitted diode driving apparatus A driving apparatus includes a DC-to-DC converter, a first LED series, a second LED series, a first constant-current circuit, a second constant-current circuit, and a feedback circuit. The DC-to-DC converter respectively outputs a direct-current voltage to one termi... | 09/04/2007 |
| 7106221 | Capacitive touch switch system for an audio device A capacitive touch switch system for use in an audio application includes a detecting circuit with a capacitive sensing device and a filtering circuit. The capacitive sensing device senses changes in capacitance. The filtering circuit filters external and/or interna... | 09/12/2006 |
| 7012544 | Address and/or alarm indicator sign Sign 1 has frame 13 attaching to base 9 and supporting character plates 4. Casing 11 attaches to frame 13 and holds character plates 4 against frame 13. Light assembly 15 and base 9 backlight char... | 03/14/2006 |
| 6693550 | Visually displaying status information in an electronic signaling system A visual indicator array has (M×N)/2 pairs of indicator devices arranged in a two-dimensional, linear array having M rows and N columns, where M is an integer greater than or equal to two, and N is an integer greater than or equal to one. The array also ... | 02/17/2004 |
| 6603458 | Electromagnetic display device An electromagnetic display apparatus includes a panel having substantially square pixel, which are divided into two parts. Each pixel is provided with a rotatably-mounted, bistable tilting flap, which is asymmetrical in relation to its rotational axis. Th... | 08/05/2003 |
| 6510632 | Small dot display element A small dot or disk flip dot display element and a method of making a flip dot display formed of such elements is shown where the disks or dots flip between an ON position showing a bright surface and an OFF position showing a dark surface. The dots are f... | 01/28/2003 |
| 6480116 | Method and apparatus for showing special characters or figures on a rotating disk The present invention is a method and apparatus for showing special characters or figures on a rotating disk. A sensor (e.g. spectrum sensor, metal sensor, magnetic field sensor, mechanical contact sensor and sound sensor) and a plurality of light fitting... | 11/12/2002 |
| 6272778 | Display element for electromagnetic displays Display element for an electromagnetic display device comprising a frame and a disc mounted to the frame for pivoting of the disc about a pivoting axis, the disc having two differently colored sides, an ON-side the color of which contrasts against the bac... | 08/14/2001 |
| 6216370 | Display array and device A sign having a changeable array constituted by a plurality of pivotally mounted disks which have opposite bright and dark surfaces. The bright surface of each disk is illuminated by an adjacent light emitter when positioned in a direction of viewing. Lig... | 04/17/2001 |
| 6212806 | Display apparatus A display apparatus includes a base member that defines a display surface and nine panel segments mounted to the base member. At least eight of the panel segments are moveable between a first position in which a panel segment lies in a general parallel an... | 04/10/2001 |
| 6209243 | Display device and array A display element includes a disk which rotates preferably through 160°-180° to display a bright or a dark side in a viewing direction in ON and OFF positions respectively. A constantly on LED is arranged to illuminate the disk in ON position for viewin... | 04/03/2001 |
| 6181315 | Magnetically operated display A method of operating a magnetically operated display unit that includes a frame of a color, a plate pivotably mounted on the frame which includes a first surface of a color different from that of the frame and a second surface of a color identical to tha... | 01/30/2001 |
| 6121890 | Electronic indicator with adjustable ratio of spindle displacement to displayed value An electronic indicator that includes a means for a scaling the actual displacement of the spindle by a user-adjustable scale factor representing the ratio of the actual displacement of a spindle to the value displayed. The indicator includes a body, tran... | 09/19/2000 |
| 6025825 | Magnetically operated display A magnetically operated display unit includes a frame of a color, a plate pivotably mounted on the frame which includes a first surface of a color different from that of the frame and a second surface of a color identical to that of the frame, a magnet em... | 02/15/2000 |
| 5901483 | Display device and array A display element includes a disk which rotates through 160°-180° to display a bright or a dark side in a viewing direction in ON and OFF positions respectively A constantly on LED is arranged to illuminate the disk in ON position for viewing in a first... | 05/11/1999 |
| 5898418 | Magnetically operated display A magnetically operated display unit includes a frame of a color, a plate pivotably mounted on the frame which includes a first surface of a color different from that of the frame and a second surface of a color identical to that of the frame, a magnet em... | 04/27/1999 |
| 5896093 | L.E.D. light assembly for traffic arrowboards An L.E.D. light assembly for traffic arrowboards having an upright oriented lens having a front surface and a rear surface. A plurality of vertical flutes are formed on said rear surface and a plurality of horizontal flutes are formed on said front surfac... | 04/20/1999 |
| 5818414 | Single display device with passive components, in particular for displaying characters which consist of a plurality of matrix-arranged picture elements A signal display device with passive components is disclosed, in particular for displaying characters which consist of a plurality of matrix-arranged picture elements. The device has an information-carrying base plate, suitable in particular for color inf... | 10/06/1998 |
| 5697174 | Matrix-array display A matrix-shaped display device with a display foil in which display elements are punched out in the form of tabs. The tabs are positioned in rows and columns, and depending on the desired display, can be positioned by a positioning device in front of or b... | 12/16/1997 |
| 5550558 | Display matrix A back illuminated array of display elements each of which comprises a vane rotatable between two positions by interaction between an electromagnet and a permanent magnet attached to the vane. The electromagnet includes a monolithic member of soft magneti... | 08/27/1996 |
| 5298875 | Controllable levitation device Apparatus for levitating a magnetic body. The apparatus includes a structure (10) comprised of a material that is superconductive below a critical temperature. The structure includes at least one Josephson junction device (14) for passing a variable curre... | 03/29/1994 |
| 5204651 | Elementary cell combinable to form dot matrix displays An elementary cell combinable to form dot matrix displays, in which a plurality of plates of non-magnetic insulating material, at least one of which is in contact with a plate of high magnetic permeability, define a seat for housing a polychrome sphere pr... | 04/20/1993 |
| 5148156 | Electronic display device having a plurality of pixel elements A display device including a plurality of pixel elements arranged in matrix form. Each of the pixel elements can be set to one of two alternative states. In the first state, each pixel element includes a portion that transmits light and an adjacent portio... | 09/15/1992 |
| 5111193 | Electronic display element for electronic display device A display element designed to permit easy assembly of an electronic display device and which utilizes an electromagnet having an L-shaped pole piece and reverse windings. Specifically, the invention resides in a display element for use in an information d... | 05/05/1992 |
| 5061921 | Remote-controlled message sign A remote-controlled message sign in controlled by a pager. The pager receives radio signals from a paging service and provides output signals in response to the radio signals. The output signals of the pager are used to control one or more drive motors. E... | 10/29/1991 |
| 5057828 | Display device comprising rotating display elements having a plurality of faces, and display panel composed of such devices Display device comprising an array of rotating display elements (4) which have at least two faces of different color and are arranged in rows and columns, means (8, 18) for actuating the said rotating elements in terms of rotation, intended to ensure the ... | 10/15/1991 |
| 5005305 | Magnetically operated display device A magnetically operated display element having contrasting opposite sides, is symmetrically mounted in a surrounding frame for pivoting about an axis. A permanent magnet within the display element has poles on opposite sides of the pivoting axis. A U-shap... | 04/09/1991 |
| 4986014 | Matrix-type advertising device A matrix-type advertising device having a circulating transport band with flap-like advertising elements, positioned in rows and columns, which are connected with the transport band on one side in the direction of transport. Dividing strips are positioned... | 01/22/1991 |
| 4901155 | Signal processing system for large screen display apparatus A large screen display apparatus comprising a display unit composed of a plurality of modules and a housing accommodating the display unit. Each of the modules includes a plurality of units arranged in a matrix form, a power source and a control unit. Fur... | 02/13/1990 |
| 4891635 | Electrostatic display element An electrostatic display element making use of electrostatic force acting between a movable electrode and a pair of fixed electrodes kept oppositely to each other with said movable electrode positioned therebetween. The movable electrode, which is made of... | 01/02/1990 |
| 4831372 | Display apparatus A magnetically actuated information display device is disclosed which includes a rigid, permanently magnetized display segment movably mounted in a non-magnetic chamber having a transparent viewing window and containing an opaque fluid whose color contras... | 05/16/1989 |
| 4831371 | Electrostatic pixel module capable of providing size variable pixels An electrostatic pixel module capable of providing size-variable pixels for use in an electrostatic display board. The module is made up of a known electrostatic display elements arranged so as to form a substantially square-faced pixel unit consisting of... | 05/16/1989 |
| 4825205 | Changeable display unit for use in a sign device A changeable display unit for use in a sign device which comprises a case containing an electromagnet disposed therein and extending along the opposite sides thereof, the case including a case aperture disposed at the front side thereof, a fixed plate con... | 04/25/1989 |
| 4819357 | Information display devices A display device of the matrix type utilizes coincident current selection of display elements by the provision of row conductors (R) activating row electromagnets (D) and column conductors (C) activating column electromagnets (H). Each display element inc... | 04/11/1989 |
| 4800381 | Electromagnetic indicator device An electromagnetic indicator device which has a plurality of triangle-shaped vanes, asymmetrical in relation to the rotation axis, which are arranged on a plate in the form of a matrix. A polarization magnet is applied to the vane in the vincinity of the ... | 01/24/1989 |
| 4796368 | Changeable dot display assembly This dot assembly has a three-position rotor carrying dot display means for use as a portion of a matrix of dots in a variable message sign. The assembly has a stator including a support carrying reversely magnetizable separate magnetic cores on which are... | 01/10/1989 |
| 4786898 | Electrostatic display apparatus The present electrostatic display apparatus has its display panel constituted by many electrostatically operated display units arranged along the length and breadth forming a matrix. Each of the display units basically consists of a fixed and a movable el... | 11/22/1988 |
| 4779082 | Matrix display apparatus employing movable magnetic elements The invention provides a display matrix system using display elements of the electromagnetic type. The system differs from others in that the currents applied to the display elements are unidirectional as there are no electrical switching components per e... | 10/18/1988 |
