Bizarre Patents
An aircraft having vertical takeoff and landing capability provided with at least first and second laterally extending paddle wheels rotatable on a central axis perpendicular to the longitudinal axis of the aircraft fuselage and between its nose and tail.
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 |
| 6450627 | Simplified ink jet head In the embodiments of the simplified ink jet head described in the specification, a carbon body is formed with ink passages, such as internal passages extending through a carbon plate, pressure chambers on one side of a carbon plate, flowthrough passages ... | 09/17/2002 |
| 6293638 | Bar code printing on cartons with hot melt ink In the method and apparatus for printing bar codes on cartons disclosed in the specification, cartons on which bar codes are to be printed are conveyed in succession in either direction past a heater which heats a selected portion of the carton surface an... | 09/25/2001 |
| 5757400 | High resolution matrix ink jet arrangement In the particular embodiments of the invention described in the specification, an ink jet system has a plurality of modular ink jet arrays arranged to produce high resolution images on a substrate. In one embodiment, the ink jet arrays are formed in an in... | 05/26/1998 |
| 5755909 | Electroding of ceramic piezoelectric transducers In the embodiments described in the specification, electrodes are bonded to the surface of a ceramic piezoelectric layer by supporting electrodes having a reduced dimension on a flexible dielectric film and placing the dielectric film under tension to exp... | 05/26/1998 |
| 5757391 | High-frequency drop-on-demand ink jet system In the high-frequency drop-on-demand ink jet system described in the specification, a variable impedance characteristic of an ink jet orifice is utilized to provide maximum drop ejection rates exceeding the maximum rates possible with constant orifice imp... | 05/26/1998 |
| 5724082 | Filter arrangement for ink jet head In the embodiments described in the specification, an ink jet head has an orifice filter disposed between a pressure chamber and an orifice to trap contaminant particles having a size likely to block the orifice, while permitting smaller particles to pass... | 03/03/1998 |
| 5694156 | Ink jet head with ink usage sensor In the representative embodiments disclosed in the specification, an ink jet system includes a carriage for driving an ink jet head having a reservoir containing ink in a reciprocating motion and a counter for counting ink drops ejected through orifices i... | 12/02/1997 |
| 5605659 | Method for poling a ceramic piezoelectric plate In the embodiments described in the specification, a ceramic piezoelectric plate is polarized by compressing the plate between electrode plates with intervening slightly conductive rubber sheets or by applying electric charge from a corona discharge devic... | 02/25/1997 |
