Bizarre Patents
Pet Toilet-Like Water Disk and Food Storage
One pet-friendly inventor patented "a device for watering pets, e.g., a dog or cat." The device, he helpfully noted, "has the general shape of a toilet."
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| Number | Title | Issue Date |
| 7255080 | Spark plug heating for a spark ignited engine A system for an engine of a vehicle, comprising of at least one combustion chamber located in the engine, a delivery system configured to deliver a fuel and a fluid to the combustion chamber, an ignition system including a spark plug configured to ignite the fuel wi... | 08/14/2007 |
| 6583538 | Spark plug Spark plug with an electrically insulating ceramic insulator (1), a metallic spark plug body (2), a ground electrode (3) and a middle electrode (4) which is located centrally in a hole (5) of the ceramic insulator (1), around the ignition-side end area on... | 06/24/2003 |
| 6244247 | Ignition device for internal combustion engines In an internal combustion engine, an engine control device 40 judges based on a cooling water temperature of an engine in what state the engine is. When judged that the engine is in a cold state, the engine control device 40 produces an ignition signal to... | 06/12/2001 |
| 6097136 | Spark plug for having slidably wiping device for cleaning carbon deposits A spark plug for use in a combustion engine, which includes a spark plug body defining a central cavity; a electrode disposed within the cavity; a spring means disposed in one end portion of the central cavity; and a plate means operatively associated at ... | 08/01/2000 |
| 5941208 | Process for operating an Otto internal-combustion engine having an internal mixture formation Otto internal-combustion engines having one injector respectively per cylinder for the internal mixture formation can be operated at full load or high partial load by fuel injection in the suction stroke of the piston and, at medium or low partial load, w... | 08/24/1999 |
| 5724938 | Ignition system for a two cycle engine The present invention relates to ignition systems for internal combustion engines and, in particular, to a spark ignition system specifically adapted for two-cycle engines. An ignition system is provided which is able to avoid ignition plug smolder and el... | 03/10/1998 |
| 5274298 | Spark plug having an ablative coating for anticontaminat fouling A spark plug is provided for an internal combustion engine and includes a center electrode having a combustion chamber end and a ceramic insulator having an end portion over which an ablative coating is formed for removing contaminants deposited thereon. ... | 12/28/1993 |
| 5007389 | Ignition plug for internal combustion engines and a process for igniting gas mixture by the use thereof This invention concerns an ignition plug for internal combustion engines and a process for igniting gas mixture by the use thereof, which functionally speaking are characterized by utilizing the expansion of initial gas combustion following the formation ... | 04/16/1991 |
| 4947810 | Method and arrangement for improving the starting ability of an internal combustion engine, when an attempt to start the engine has failed The invention relates to a method and arrangement for cleaning the spark plugs of an internal combustion engine automatically subsequent to the engine stopping and then, preferably, after an unsuccessful attempt to start the engine. Consequently, conditio... | 08/14/1990 |
| 4810929 | Spark plug temperature control A spark plug having a heat pipe incorporated in the center conductor assembly in the insulator centerbore. The heat pipe is thermally non-conducting below a design temperature such that the firing end of the spark plug retains heat to burn off fouling dep... | 03/07/1989 |
| 4133322 | Internal combustion engine In an internal combustion engine, an injection hole is provided in the cylinder head to inject narrow streams of air towards the spark gap, particularly during idling and low load running conditions. The injected air is 5 to 30% by weight of the intake fu... | 01/09/1979 |
| 3996900 | Revolving piston combustion engine of trochoid type A revolving piston combustion engine of trochoid type includes a housing composed of a shell with a multiarcuate inner surface and parallel ends and in which a polygonal piston is disposed to be eccentrically rotatable. Inlet and outlet passages are arran... | 12/14/1976 |
