Quotables
"Flight by machines heavier than air is unpractical and insignificant, if not utterly impossible."
Simon Newcomb, astronomer ; Said in 1902, less than two years before the first flight at Kitty Hawk
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 |
| 7394629 | Motor overload tripping system and method with multi-function circuit interrupter A technique is provided for controlling operation of motors of different sized or ratings. Components used to apply and interrupt current to the motors may be shared in control devices for the different motors. The components may include contactors or circuit interr... | 07/01/2008 |
| 7329103 | Cooling fan with built-in adjustable speed A cooling fan with built-in adjustable speed structure of the invention is provided herein. The cooling fan of the invention fan has built-in fan speed controlling parts installed inside, in addition, has a fan speed controlling interface, such as a knob or a keystr... | 02/12/2008 |
| 7053575 | Method for controlling operation of power seat for vehicle A method for controlling operations of power seats for a vehicle, comprises the steps of moving a first seat toward a second seat by a first reversible motor, causing a seat cushion of the first seat to be tipped up, by a second reversible motor, relative to a seat ... | 05/30/2006 |
| 6580236 | Brushless motor drive circuit having low noise and high efficiency A motor drive circuit for driving a brushless motor having a rotor and exciting coils of respective phases. A square wave rotor position signal for each phase is produced wherein a half period of the rotor position signal corresponds to a time period from... | 06/17/2003 |
| 6118234 | Method and apparatus for effecting dynamic braking of a direct current motor A double pole, double throw switching arrangement for effecting dynamic rotor braking of user controlled operation of a reversible direct current servo motor. Two columns of stationary center and oppositely disposed side contacts are disposed in spaced pa... | 09/12/2000 |
| 5757158 | Adaptive operator control for a compactor A control device for operating a machine is disclosed. The control device includes a joystick having a central axis and being universally moveable along a first and second axis in a plane perpendicular to the central axis, and a rotatable operator control... | 05/26/1998 |
| 5714852 | Three state switch detection using current sensing A three state switch detection circuit converts a three state input to a two-bit binary output readable by a micro-controller or other digital logic. The circuit utilized complementary NPN and PNP transistors having coupled emitters and coupled bases conn... | 02/03/1998 |
| 5606234 | Electrically powered hand tool with potentiometer and process for adjusting the potentiometer In known electrically operated handheld machine tools, a potentiometer serving to control output must be balanced so that a desired tap resistance can be tapped at the potentiometer in a determined adjustment position of the potentiometer. To reduce manuf... | 02/25/1997 |
