Bizarre Patents
Reward Candy Dispenser for Personal Computers
A personal computer peripheral, battery powered reward candy dispenser which immediately presents students with a single candy for each problem completed correctly.
PatentStorm News
Make the Most of Our Site
See this month's Top Inventors and Most Cited Patents.
Stay on top of the latest innovations by subscribing to an RSS feed.
Registered users: Manage your profile.
| Number | Title | Issue Date |
| 8188640 | Spark plug center electrode with reduced cover portion thickness A method of producing a spark plug includes reducing the diameter of a center electrode while maintaining the heat dissipation property of the center electrode. A columnar member in which an outer skin member and a core member having a high thermal conductivity are ... | 05/29/2012 |
| 8164243 | Spark plug for internal combustion engine A spark plug having a center electrode; an insulator having an axial hole extending in the direction of an axis; a metallic shell; a ground electrode extending from a front end portion of the metallic shell; a center-electrode-side noble metal chip joined to a dista... | 04/24/2012 |
| 8164242 | Spark plug A spark plug (100) includes: a center electrode (2); and a ground electrode (30) which is to be exposed in a combustion chamber of an internal combustion engine and which forms a spark discharge gap with the center electrode (2), wherein ... | 04/24/2012 |
| 8148883 | Spark plug used for an internal-combustion engine and a method for manufacturing the same The present invention provides a highly reliable spark plug used for an internal-combustion engine and including an insulator with a high withstand voltage, and a method for manufacturing the same. Namely, it provides a spark plug containing a cylindrical metal shel... | 04/03/2012 |
| 8129891 | Spark plug A spark plug (100) including a noble metal tip (80) disposed on a distal end portion (31) of a ground electrode (30). The noble metal tip (80) is joined to the top surface of an intermediate member (81), which is a member se... | 03/06/2012 |
| 8125129 | Working electrode for an electrodynamic fragmenting installation The invention relates to working electrode for an electrodynamic fragmenting installation. The working electrode comprises an insulator (1) with a central conductor (2), which axially passes through the insulator (1) and carries at its working e... | 02/28/2012 |
| 8125130 | Spark plug A spark plug has a central electrode and a plurality of peripheral electrodes. The central electrode has a proximal portion and a distal portion. The distal portion of the central electrode has a circular cross-section with a longitudinal axis and terminates in a di... | 02/28/2012 |
| 8120235 | Spark plug for internal combustion engine and method for manufacturing spark plug A spark plug including a center electrode and a ground electrode. A center electrode noble metal tip is joined to a leading end portion of a center electrode, and a ground electrode noble metal tip is joined to a center-electrode-side side surface of the ground elec... | 02/21/2012 |
| 8115371 | Spark plug A spark plug having a front end of an insulating member which projects 2 mm or more from a front end face of a metal shell and a volume of the insulating member which lies within a range from a front end of the insulating member to a position lying 1 mm towards a re... | 02/14/2012 |
| 8106572 | Spark plug and process for producing the spark plug A spark plug in which an ignition portion of a ground electrode formed through joining of a noble metal chip to the ground electrode has high durability, and a method of manufacturing the spark plug. ... | 01/31/2012 |
| 8106573 | Platinum alloy for spark plug electrodes and spark plug having a platinum alloy electrode A spark plug and an alloy for an electrode tip of a spark plug is disclosed herein. The spark plug having: an insulator shell; a center electrode inside the insulator shell such that one end of the center electrode protrudes from the insulator shell; a metal shell e... | 01/31/2012 |
| 8102106 | Spark plug and method of manufacturing the same A spark plug having a ground electrode that includes a press-formed recess portion comprised of a first portion with which a working pin has come into contact, and a second portion with which the working pin has not come into contact. A relation B1/B2â... | 01/24/2012 |
| 8102105 | Spark plug A spark plug in which the rising of a ground electrode is more reliably restrained. The spark plug includes a ground electrode having a core portion extending from a proximal end section toward a distal end section via a bent section, a heat transfer portion extendi... | 01/24/2012 |
| 8098004 | Method for producing spark plug and spark plug A spark plug (100) including a center electrode (130) and a ground electrode (140), which is formed by joining a ground electrode chip (143) to a ground electrode base material (141) via an intermediate member (142). A metho... | 01/17/2012 |
| 8063548 | Flexible spark plug A spark plug designed for fitting in tight spaces of an engine compartment is disclosed. The spark plug has a conductive terminal attached to one end of a flexible central electrode and has a ceramic insulator partially encasing the flexible central electrode. The p... | 11/22/2011 |
| 8053965 | Combination igniter and sensor for an internal combustion engine An igniter for an internal combustion engine, the igniter comprising: a center electrode; an insulator disposed about the center electrode; a ground shield disposed about the insulator, the insulator having a tip portion extending past an end portion of the ground s... | 11/08/2011 |
| 8049399 | High power discharge fuel ignitor A spark-ignited, internal combustion engine ignition device to increase electrical transfer efficiency of the ignition by peaking the electrical power of the spark during the streamer phase of spark creation and improving combustion quality, incorporating an electro... | 11/01/2011 |
| 8044561 | Ceramic electrode, ignition device therewith and methods of construction thereof A spark plug, a center electrode therefore and method of construction is provided. The spark plug has a generally annular ceramic insulator extending between a terminal end and a nose end. A conductive shell surrounds at least a portion of the ceramic insulator and ... | 10/25/2011 |
| 8044562 | Spark plug There is provided a spark section (80) of needle-like shape protruding from an inner surface (33) of a ground electrode (30) to define a spark gap between the spark section and an electrode tip on a center electrode. The spark section (80... | 10/25/2011 |
| 8030830 | Iridium alloy for spark plug electrodes A spark plug comprises a shell having a substantially cylindrical threaded portion for threadable engagement in a cylinder head of an internal combustion engine, an insulator disposed coaxially in the shell, a center electrode disposed coaxially in the insulator, a ... | 10/04/2011 |
| 8030831 | High thread spark plug with undercut insulator A spark plug for an internal combustion engine, the spark plug having an elongated center electrode having a center electrode tip at one end and a terminal proximate to another end of the center electrode; an insulator surrounding a portion of the center electrode, ... | 10/04/2011 |
| 8013503 | Spark plug for internal combustion engine having ground electrode with thick, thin and stepped portion and method for producing the spark plug A spark plug including: a ground electrode including a thick portion provided on a base end side, a thin portion provided on a distal end side, and a stepped portion provided on an inner peripheral surface between the thick portion and the thin portion; a noble meta... | 09/06/2011 |
| 8013502 | Small-diameter spark plug with resistive seal A spark plug (10) includes an intermediate connecting pin (54) disposed in the central passage (28) of an the insulator body (12). The connecting pin (54) seats in an intermediate taper section (72) within the central passag... | 09/06/2011 |
| 8013504 | Spark plug for internal combustion engine and method for producing the spark plug A spark plug including: a center electrode; a substantially cylindrical insulator; a cylindrical metal shell; a ground electrode having a base end joined to a leading end portion of the metal shell and a distal end bent toward the axis line. The ground electrode inc... | 09/06/2011 |
| 7977857 | High thread ground shield A spark plug for an internal combustion engine comprises an elongated center electrode having a center electrode tip at one end and a terminal proximate the other end, an insulator substantially surrounding the center electrode, and a ground shield. The insulator ha... | 07/12/2011 |
| 7973459 | Spark plug configuration having a noble metal tip A spark plug having a particular firing end configuration that satisfies numerous dimensional ranges for improved performance. The spark plug generally includes a shell, an insulator, and center and ground electrodes, with the electrodes each having a copper core fo... | 07/05/2011 |
| 7969078 | Spark ignition device for an internal combustion engine and sparking tip therefor A spark ignition device is provided having an electrode sparking tip constructed from an AuPd alloy with the addition of at least 3 wt. % of a precious metal element selected from at least one of platinum, iridium, rhodium and ruthenium. The gold counteracts oxidati... | 06/28/2011 |
| 7956522 | Ignition anode, in particular for reignitable rocket combustion chambers An ignition anode for an ignition device of a reignitable rocket combustion chamber. The anode includes an ignition anode body having an ignition anode frontal area. The ignition anode frontal area has a plurality of edges. ... | 06/07/2011 |
| 7944134 | Spark plug with center electrode having high heat dissipation property A spark plug including: a center electrode including an electrode base member and a core member; an electrode tip joined to the center electrode via a molten bond; an insulator holding the center electrode; a metal shell holding the insulator; and a ground electrode... | 05/17/2011 |
| 7936117 | Structure of spark plug Disclosed is a park plug, which has a conductive plate constituting a side electrode, and a slot is defined through the conductive plate, so that no dead zone is present around the spark plug for a fuel injection system and thereby achieving more complete combustion... | 05/03/2011 |
| 7923909 | Ignition device having an electrode with a platinum firing tip and method of construction An ignition device for an internal combustion engine and method of construction therefore includes a housing with an insulator secured therein. A center electrode is mounted within the insulator. A ground electrode extends from the housing with a portion of the grou... | 04/12/2011 |
| 7915795 | Sparkplug for an internal combustion engine A spark plug for an internal combustion engine of a motor vehicle, having a substantially cylindrical general form, includes an essentially capacitive lower part and an essentially inductive upper part. The lower part includes two coaxial electrodes, including a cen... | 03/29/2011 |
| 7906894 | Spark plug for internal combustion engine A spark plug includes a ground electrode formed with a flat region and a convex curved region on an outer peripheral surface thereof. The flat region is located on a front end of the ground electrode and has a length of 0.2 mm or more from a front end face of the gr... | 03/15/2011 |
| 7902733 | Uniquely designed internal combustion engine spark plug that will produce two independent ignition sparks between the spark plug electrodes for each single electrical ignition coil discharge This invention is an improvement to the internal combustion engine spark plug used to ignite the fuel air mixture in the engine combustion chamber. All spark plugs manufactured today produce one ignition spark for each high voltage electrical discharge of the igniti... | 03/08/2011 |
| 7872405 | Low cost spark plug manufactured from conductive loaded ceramic-based materials Spark plug devices are formed of a conductive loaded resin-based material. The conductive loaded resin-based material comprises micron conductive powder(s), conductive fiber(s), or a combination of conductive powder and conductive fibers in a base resin host. The pe... | 01/18/2011 |
| 7859178 | Spark plug for internal combustion engine and related manufacturing method A spark plug is disclosed as having a metal shell, a porcelain insulator fixedly secured to the metal shell, a center electrode and a ground electrode providing a spark discharge gap with the center electrode. The porcelain insulator has a through-bore partially exp... | 12/28/2010 |
| 7859177 | Spark plug for internal-combustion engines A spark plug for an internal-combustion engine is provided wherein the central and ground electrodes exhibit a long service life and wherein the fatigue strength at high temperatures is improved. The ground electrode is made from an alloy comprised of nickel (Ni) as... | 12/28/2010 |
| 7851984 | Ignition device having a reflowed firing tip and method of construction A sparkplug having ground and/or center electrodes that include a firing tip formed by reflowing of an end of wire having an opposite end carried by a feed mechanism. The present invention also includes methods of manufacturing an ignition device and electrodes ther... | 12/14/2010 |
| 7847472 | Spark plug having noble metal tip A spark plug including: a center electrode; an insulator which holds the center electrode therein in a state where a tip end portion of the center electrode protrudes therefrom; a metal shell which holds the insulator therein; a ground electrode which is fixed to th... | 12/07/2010 |
| 7839064 | Spark plug for internal combustion engine A spark plug including: a center electrode as defined herein; a substantially cylindrical insulator as defined herein; a cylindrical metal shell as defined herein; and a ground electrode as defined herein, wherein a spark discharge gap is provided between the leadin... | 11/23/2010 |
