The ice cream cone was invented at the St. Louis Worlds Fair by Ernest Hamwi in 1904. His waffle booth was next to an ice cream vendor who ran short of dishes. Hamwi rolled a waffle to hold ice cream and the cone was born.
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| Number | Title | Issue Date |
| 7952231 | Method and system for providing supplemental power The present disclosure is a supplemental power system which may operate in conjunction with a power supply to provide supplemental power to a load. Supplemental power system may include a power storage device, a boost converter and a power storage charger. Supplemen... | 05/31/2011 |
| 7692331 | Electrical emergency source device located on an aircraft The invention relates to an electrical emergency source device fitted on an aircraft, which comprises an energy source capable of outputting the power necessary for vital electrical loads (10) to operate correctly, wherein there are two types of these loads: ... | 04/06/2010 |
| 7276812 | Method and device for non-contact energy transmission A method and a device for non-contact energy transmission from one or more medium-frequency current sources, whose medium frequencies may have deviations around fM, to one or more moving consumers via one or more transmission lines and from or via transfo... | 10/02/2007 |
| 7230352 | Compact power supply The present invention discloses an electrical power supply for providing electrical power to a load, the power supply comprising a plurality of energy storage elements each having a different operating characteristic and connected in an electrical circuit to the loa... | 06/12/2007 |
| 7170765 | Current distribution circuit A current distribution circuit for parallel power supplies is provided. The parallel power supplies include at least a first power supply and a second power supply, and the current distribution circuit includes a voltage amplifier, a power converting unit, a detecti... | 01/30/2007 |
| 7170194 | Configurable multiple power source system A system for supplying additional power to a module having an internal power supply, the system comprising: a module having an associated power supply, the power supply not being designed to accommodate power sharing; at least one load associated with the module, th... | 01/30/2007 |
| 7146258 | Direct current power pooling The present invention provides for a DC power pooling system comprising: a plurality of DC electrical power consuming and providing entities, each of the plurality of DC electrical power consuming and providing entities having at least a first operative mode in whic... | 12/05/2006 |
| 7142951 | Direct current power pooling for an ethernet network The present invention provides for a DC power pooling system for an Ethernet network comprising: a plurality of DC electrical power consuming and providing Ethernet nodes, each of the plurality of DC electrical power consuming and providing Ethernet nodes having at ... | 11/28/2006 |
| 7116011 | CPU surge reduction and protection Methods and systems of providing power to a central processing unit (CPU) provide for enhanced surge protection and increased battery life. In one approach, an integrated circuit as a power output stage with an output node, and a voltage regulator coupled to the pow... | 10/03/2006 |
| 7002263 | Elimination of recirculation current loss in load-shared switching mode power supplies In master-slave current-tracking load-share systems using switching power supplies, a method and apparatus for preventing current recirculation at light-load and no-load operational conditions. The slave power supply is run in a discontinuous mode when load current ... | 02/21/2006 |
| 6977448 | Backup power supply Apparatus built-in backup power supply system has a “peak cut” function for sharing a part of the load current at the time of a peak load using a secondary battery. For this purpose, a two-way DC—DC converter 5 and the secondary battery 4 are ins... | 12/20/2005 |
| 6977829 | Current distribution circuit A master-slave current distribution circuit for parallel power supplies is disclosed. The master-slave current distribution circuit for parallel power supplies comprising at least a first power supply and a second power supply includes a voltage amplifier, a power c... | 12/20/2005 |
| 6882062 | Power supply management in paper-processing machines A device for supplying voltage to an electrical machine, in particular a paper-processing machine, having a plurality of electric drives (11, 12, 21, 22, 32), electric drives (11, 12) of the same supply voltage being combined into one voltage level ( | 04/19/2005 |
| 6747372 | Distributed control method for multiple connected generators An energy generation network according to the present disclosure includes energy generating elements organized in a tree structure of superior and inferior system levels, with control systems and a communication network. In a currently preferred embodiment, energy g... | 06/08/2004 |
| 6635973 | Capacitor-equipped working machine A working machine, such as an excavator, provided with a condenser, capable of satisfying condensing conditions required for various works, while minimizing the condensers and maintaining a light-weight. The working machine includes a generator and at a a... | 10/21/2003 |
| 5708590 | Method and apparatus for real time recursive parameter energy management system A new method and apparatus for recursive parameter estimation which closely approximates actual values is taught. Briefly stated, the within invention estimates impedance parameters of network branches in both on-line and off-line modes, providing accurat... | 01/13/1998 |
| 5627760 | Method and apparatus for real time recursive parameter energy management system A new method and apparatus for recursive parameter estimation which closely approximates actual values is taught. Briefly stated, the within invention estimates impedance parameters of network branches in both on-line and off-line modes, providing accurat... | 05/06/1997 |
| 5543602 | Method for the storage and controlled supply of electric energy for discontinuous loads in steelworks Method for the storage and controlled supply of electric energy for discontinuous loads in steelworks and in particular for metal melting systems and rolling mills, the method comprising at least one main supply line (18) connected to a main supply source... | 08/06/1996 |
| 5157269 | Load current sharing circuit A load current sharing circuit is disclosed that allows multiple independent power modules, either switching or linear, to be connected in a parallel configuration such that each module delivers only its proportionate share of the load current. Each modul... | 10/20/1992 |
| 4186336 | Limit cycling regulator apparatus for plural parallel power sources A low dissipation shunt or series regulator apparatus is described comprising dump switching means coupled in parallel to each power source, which dump switching means is arranged for being responsive to a control signal produced by comparator means arran... | 01/29/1980 |