Bizarre Patents
A gun that fires a missile, powered by gas "discharged by the operator of the toy."
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 |
| 7102343 | Methods and systems having multiple cooperating transformers Disclosed are methods, systems, and devices that include a power source having a first voltage having a first frequency, a power-consuming load(s), and a first transformer set comprising a delta-delta transformer and a first voltage controller coupled in series ther... | 09/05/2006 |
| 6982890 | Three phase isolated vector switching AC to AC frequency converters A three-phase AC to AC frequency converter has a transformer with a three-phase input and n sets of three-phase secondary outputs, where n is three or more, the voltages at each set of secondary output terminals being one or more multiples of 360°/n out of phase wi... | 01/03/2006 |
| 6594166 | Step-up transformer A step up transformer has an inert core, primary windings concentrically surrounding the inert core, and secondary windings concentrically surrounding the primary windings, the ratio of secondary windings to primary windings of up to 1,000,000:1. The step... | 07/15/2003 |
| 6456021 | Rotating variable frequency transformer with high voltage cables A system for transferring power between a first electrical system and a second electrical system comprises a rotary transformer (105) comprising a rotor (110) having rotor windings and a stator (112) having stator windings. The windings of at least one of... | 09/24/2002 |
| 4213173 | Polarity-and-load independent circuit arrangement for converting electrical energy A circuit arrangement for converting electrical energy has a static frequency converter which operates with a considerably higher frequency than the frequency to be produced, the arrangement has a heavy-duty switch, a transmitter and a rectifier on the se... | 07/15/1980 |
| 4162522 | Apparatus for frequency conversion by electromagnetic induction Apparatus for conversion of alternating current at a first frequency to alternating current at a second (lower) frequency in a power control circuit by means of progressive variation of magnetic flux in associated magnetic paths. Control is achieved by pr... | 07/24/1979 |
| 4052785 | Method of making a transformer assembly Disclosed is a double balanced mixer using a novel single ferrite core construction. The core includes two apertures and a transformer is wound through each aperture. The two transformers are connected by diodes in the known manner to provide the mixer. T... | 10/11/1977 |
