Famous Patents
3M employee and church chorister Art Fry needed something to temporarily mark pages in his hymnal. He was in luck because his colleague, Spencer Silver, accidentally developed a glue that was too weak for other purposes. After initially discouraging consumer response, Post-it Notes became a hit in 1979.
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| Number | Title | Issue Date |
| D550264 | LED folding magnifier | 09/04/2007 |
| D544124 | Clip-on booklight | 06/05/2007 |
| 7204814 | Orthodynamic rehabilitator The present invention is a portable orthotic system that performs predefined or user-controlled limb movements, collects data regarding limb movement, performs data analysis and displays representations of the data and data analysis results in real time, and modifie... | 04/17/2007 |
| 7180087 | Spin filter and a memory using such a spin filter A spin filtering device has: a spin filter (1) having an input region (3) for carrying an electron current, an output region (4) for carrying an electron current, and a three-dimensionally confined quantum region (2a) arranged to o... | 02/20/2007 |
| 7142186 | Method and apparatus for converting gradation data in STN LCD Disclosed relates to a method and an apparatus for converting gradation data for a color STN-LCD, capable of providing color moving pictures of excellent quality. The apparatus includes a storage buffer 31 for storing input data for driving the LCD, and a fra... | 11/28/2006 |
| 7068168 | Wireless anti-theft system for computer and other electronic and electrical equipment The present invention is an anti-theft system for the surveillance of computers and high-risk electrical and electronic equipment. This system is based on activating an internal transmitter contained in the stolen equipment. In the case of stationary equipment the a... | 06/27/2006 |
| D518294 | Packaging | 04/04/2006 |
| 7000934 | Bicycle propulsion system The disclosure herein provides a two-wheel bicycle system wherein a pair of long levers are arranged on the cross-beam of the frame, to provide the fulcrum for the motion of the levers. The tops of the levers comprise handles perpendicular to such levers, with linka... | 02/21/2006 |
| 6064515 | Feedback-type optical fiber amplifier using hybrid pumping light beams A feedback-type optical fiber amplifier using hybrid pumping light beams disclosed, including: an optical line through which an optical signal is propagated; a plurality of rare-earth-doped fibers, doped with a predetermined rare earth ion, being coupled ... | 05/16/2000 |
| 6025698 | Smart battery charging system, charging method therefor and power supply system for portable computer using the same The present invention relates to a smart battery charging system, a charging method therefor and a power supply system for portable computer using the same that executes various charging operations securely corresponding to types of the smart batteries co... | 02/15/2000 |
| 6016218 | Optical fiber amplifier An optical fiber amplifier is disclosed including: an optical line through which an optical signal is transmitted; a rare-earth-doped fiber, doped with a predetermined rare earth ion, being set on the optical line; a pumping light beam source for generati... | 01/18/2000 |
| 4947941 | Single-stroke pneumatic apparatus A single - stroke pneumatic apparatus comprises a hollow cylindrical frame 1) in which is mounted for reciprocating back and forth a striker (2) forming in the frame (1) front and rear chambers (3 and 4), the front chamber (3) has its own inlet and outlet ... | 08/14/1990 |
| 4441055 | Lighting system A lighting system comprises gaseous discharge lamps (8) connected to a source (1) of regulated alternating current through current transformers (5). The primary windings (6) of the current transformers (5) are connected in series to the source (1). The ga... | 04/03/1984 |
| 4429255 | Klystron The klystron of the invention comprises cavities 5 with face walls 7 and drift tubes 8. There are annular slots 9in the face walls 7 and drift tubes 8, said annular slots 9 accommodating plates 10 rigidly attached thereto, said plates 10 being made of a n... | 01/31/1984 |
| 4429244 | Stator of generator A stator of a generator, which stator comprises a housing accommodating a slotted magnetic core 2, a dielectric oil-separating cylinder 4 arranged next to the internal surface of the magnetic core, and a winding composed of two series-connected half-windi... | 01/31/1984 |
| 4424478 | Device for exciting master generator of self-contained power units for transportation facilities A device for exciting a master generator of self-contained power units for transportation facilities comprises a master generator with a first excitation winding, an auxiliary exciter generator with a second excitation winding, an exciting current regulat... | 01/03/1984 |
| 4423588 | Apparatus for paying off wire from a bobbin Wire payoff devices are described which are used in conjunction with bobbin supporting cradles typically found in wire stranding and cabling machines such as high speed tubular stranders, bow or skip stranders and planetary stranders. The payoff devices i... | 01/03/1984 |
| 4422174 | Shaft furnace for heat treatment of materials A shaft furnace comprises a body (2) made up of superimposed heated sections (3,4,5,6 and 7) each of which is provided with a tubular member (10,11,12,13 and 14) having its walls arranged at an angle of 3 to 4 deg. to the longitudinal axis of the furnace.... | 12/20/1983 |
| 4420346 | Method of preparing contacts and electrodes of electric vacuum apparatuses A method of preparing contacts and electrodes of electric vacuum apparatuses comprising the steps of exposing the contact (electrode) surface to a concentrated thermal flux of 104 to 106 W/cm2 in a vacuum or in the environ... | 12/13/1983 |
| 4413762 | Game ball holder A game ball holder for holding a ball, such as a tennis ball, on a garment. The holder includes two elongate strips of elastic material arranged side by side with one lateral edge of one strip adjacent to one lateral edge of the other. The adjacent latera... | 11/08/1983 |
| 4413201 | Device for attachment of coil ends in generator stator high-voltage winding A device for attachment of coil ends in a generator stator high-voltage winding includes insulation spacers (13) disposed on external surfaces of the coil end bars (16), auxiliary spacers disposed between coil end bars (16), a case (1), spring stops (15) ... | 11/01/1983 |
| 4408145 | Linear electric motor A linear electric motor comprises a stator constructed in the form of two equidistant ferromagnetic strips 1 and 2 provided with alternating projections 3 and recesses 4 having a length equal to the pole pitch ͌ of the motor. A movable core 5 is disposed... | 10/04/1983 |
| 4402369 | Pneumatic tool A percussive-action pneumatic tool comprising a handle-carrying frame having successively accommodated therein a shock-absorber and a housing with the percussion mechanism therein, connected through a gas distribution system to a compressed air source. Th... | 09/06/1983 |
| 4400641 | Piezoelectric motor with two part rotor A piezoelectric motor of the invention comprises a stator and a rotor one of which includes at least one first piezoelectric oscillator. The rotor consists of a first and a second parts one of which parts includes a second piezoelectric oscillator. Said p... | 08/23/1983 |
| 4394618 | Digital tracking phase meter A digital tracking phase meter comprising a shaper of narrow pulses corresponding to a leading edge of an input square-shaped signal, connected by the output thereof to one input of a switch, the other input of which is applied to a data output of a phase... | 07/19/1983 |
| 4378687 | Method for rolling H-sections in continuous mill A method for rolling H-sections in a continuous mill comprises bevelling of the leading edge of a billet on the faces which are horizontal during rolling and subsequent rolling thereof in slitting and beam passes. The end of the billet is bevelled at an a... | 04/05/1983 |
