Famous Patents
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 |
| 6938699 | Variable angle powered work implement A walk-behind power unit is configured to detachably mount a variety of work implements to perform a corresponding variety of operations from a single power unit. The power unit includes an implement mounting mechanism that is pivotable about a generally vertical pi... | 09/06/2005 |
| 6920939 | Walk-behind electric cultivating machine A walk-behind electric cultivating machine has a body frame, an electric motor mounted on the body frame and having a motor shaft, and batteries mounted on the machine body frame for supplying electric power to the electric motor. Each of the batteries has a longitu... | 07/26/2005 |
| 6909068 | All-terrain undercarriage A moveable undercarriage for supporting and moving a welder over a ground surface having a base to support the welder, a front and rear axle secured to the base each having two wheels rotatably secured to the axles, and a push bar secured to said base to move the ba... | 06/21/2005 |
| 6412569 | Concrete mixing hoe A hoe for facilitating manual intermixing of materials initially in heterogeneous phases, particularly dry concrete pre-mix and water, includes an elongated straight handle having a rear longitudinal portion adapted to be grasped within a person's hands, ... | 07/02/2002 |
| 6116349 | Vegetation cutter with guide A device for trimming the edge of a lawn device comprises a rotary cutter which, in use, rotates about an axis which is substantially horizontal with respect to the ground. The device further comprises a guide which is mounted to extend, in use, in a subs... | 09/12/2000 |