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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 |
| D652247 | Stove | 01/17/2012 |
| D649725 | Base for a vacuum cleaner | 11/29/2011 |
| D635728 | Vacuum cleaner | 04/05/2011 |
| 7905024 | Drive wheel A drive wheel for centerless drive of an annular saw blade of a cutting machine. The drive wheel includes a drive ring having concentrically arranged first and second annular elements, each of which has a first beveled side surface located radially outward from a se... | 03/15/2011 |
| 7841216 | Dry cleaning machine and driving unit compartment A cleaning machine, such as a laundry cleaning machine, includes a treatment compartment housing that defines a treatment compartment and a driving unit compartment housing that defines a driving unit compartment. The driving unit compartment housing is connected to... | 11/30/2010 |
| D626709 | Vacuum cleaner | 11/02/2010 |
| D619769 | Vacuum cleaner | 07/13/2010 |
| D614368 | Vacuum cleaner wheel | 04/20/2010 |
| D613470 | Vacuum cleaner wheel | 04/06/2010 |
| D613469 | Vacuum cleaner | 04/06/2010 |
| D608305 | Remote controller | 01/19/2010 |
| D608304 | Remote controller | 01/19/2010 |
| 7647144 | Obstacle sensing system for an autonomous cleaning apparatus An obstacle-sensing system for carriers, particularly autonomous carriers such as robot vacuum cleaners, enables the carriers to disengage themselves from any obstacle or obstruction with which they come into physical contact and proceed past the obstacle or obstruc... | 01/12/2010 |
| 7613543 | Electronic demarcating system A method and an electronic search system for operating an automatic device, preferably an automatic lawnmower. The system comprises at least one first electrical cable (1,4,5,6) connected to at least one first signal generator (3,7,8) and at least one ... | 11/03/2009 |
| D603570 | Attachment for a cleaning device | 11/03/2009 |
| D600415 | Vacuum cleaner | 09/15/2009 |
| D599455 | Room air conditioner | 09/01/2009 |
| D599454 | Room air conditioner | 09/01/2009 |
| D598171 | Vacuum cleaner handle | 08/11/2009 |
| D597790 | Blender jar | 08/11/2009 |
| 7520276 | Portable working machine A portable working machine comprising a tool unit (1) with a disc guard and a circular tool (3), and a machine unit (2) with a filter system (10), an internal combustion engine (11) with an engine cylinder (13) with bore ( | 04/21/2009 |
| D585696 | Stove | 02/03/2009 |
| D584463 | Vacuum cleaner | 01/06/2009 |
| D577473 | Vacuum cleaner | 09/23/2008 |
| 7419523 | Device for a vacuum cleaner This invention relates to a device for a vacuum cleaner comprising a cyclone chamber (10) and a collecting container (21) arranged in association with the cyclone chamber for particles separated by the cyclone. The cyclone chamber comprises an inlet ( | 09/02/2008 |
| D566349 | Vacuum cleaner | 04/08/2008 |
| D565816 | Vacuum cleaner | 04/01/2008 |
| 7342372 | Method for power control of an electric motor The invention relates to a method for power control of an electric motor, in particular a motor for driving the suction fan of a vacuum cleaner connected to an AC mains power supply. The power control is effected by varying the phase angle of the electric alternatin... | 03/11/2008 |
| D559482 | Vacuum cleaner | 01/08/2008 |
| D556397 | Vacuum cleaner | 11/27/2007 |
| 7275280 | Wheel support arrangement for an autonomous cleaning apparatus A carrier, such as an autonomous cleaning apparatus, has a self-adjusting wheel assembly that can move vertically, thereby enabling the carrier to readily pass over a surface. The wheel assembly may include microswitch, which activates a control mechanism for the ca... | 10/02/2007 |
| 7248951 | Method and device for determining position of an autonomous apparatus A carrier, such as an autonomous surface treatment device, e.g., a robotic vacuum cleaner, has motive units, such as wheels, for transporting the carrier over a field of operation. The state of the carrier, which can be its position on the field of operation, is det... | 07/24/2007 |
| D545011 | Vacuum cleaner | 06/19/2007 |
| 7206677 | Efficient navigation of autonomous carriers According to the invention, autonomous carriers or vehicles are efficiently navigated over a field of operation. The carriers are equipped to execute a selected procedure at more than one desired location on the field, and the navigation system of the invention dire... | 04/17/2007 |
| D538620 | Blade protector with snake skin image for chain saw | 03/20/2007 |
| 7185393 | Leaf blower Leaf blower that is carried on the back of the operator comprising at least an engine (14) and a fan. The fan is provided with an air inlet (13) placed on the side of the fan that is facing away from the back of the operator. The air stream is passing ... | 03/06/2007 |
| 7174991 | Muffler for internal combustion engine The subject invention refers to a muffler comprising a muffler housing (1, 2) and generally a catalytic converter element (13) mounted in the housing, which muffler has at least one inner outlet (4) through which exhaust gases cleaned by the cat... | 02/13/2007 |
| 7171725 | Vacuum cleaner device with a screw conveyor A device for a vacuum cleaner comprising a particle separator, which is provided with an inlet (11) for dust laden air, an outlet (16) for the separated particles, and an outlet (14) for cleaned air that is connected to a vacuum source (14 | 02/06/2007 |
| D535538 | Blade protector with camouflage image for chain saw | 01/23/2007 |
| D535169 | Blade protector with cutting chain image for chain saw | 01/16/2007 |
