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 |
| 7112019 | Pneumatic spindle with means to direct the bearing air towards the tool-holding collet A spindle (1) in which the moving part (2) fixed to the tool-holding collet (3) is supported by one or more aerostatic bushes (4) on cushions of air generated by a jet of compressed air that circulates continuously along the air gaps (... | 09/26/2006 |
| 6891348 | Synchronous motor with currents controlled by a single Hall sensor at high speeds Electric motor for driving members that rotate at speeds of greater than 40,000 revolutions per minute, includes a stator housing induction coils, a rotor supporting multiple permanent magnets and located coaxially inside the stator, and multiple Hall sensors integr... | 05/10/2005 |
| 6670730 | Multi-phase linear motor with induction coils arranged on an axis perpendicular to the direction of motion A multi-phase linear motor includes a number of magnets side by side with multiple phase coils in which alternating currents that are offset by a predetermined value are made to flow. The interaction between the magnets and the phase coils causes a relati... | 12/30/2003 |
| 6611074 | Array of electromagnetic motors for moving a tool-carrying sleeve An array (10) contains a rotary electromagnetic motor (11) and/or a linear electromagnetic motor (12) that is (are) attached to a tool-carrying sleeve (19) of a machine tool that carries out high-speed working in order to draw off shavings, in which magne... | 08/26/2003 |
| 6227778 | Tool and spindle with centrifugal force clamping A description is given of a set (10) consisting of a spindle (1) and tool (2) for machining operations to remove shavings by means of rotation, wherein the clamping of tool (2) is accomplished by the action of centrifugal force acting on one or more of th... | 05/08/2001 |
