Did You Know...
...that while attempting to develop a super strong glue, 3M employee Spencer Silver accidentally developed a glue that was so weak it would barely hold two pieces of paper together? However, his colleague Art Fry needed the glue. Fry sang with his church choir and marked the pages of his hymnal with small scraps of paper that often fell out. He used Silver's glue to hold the papers in place. Today we call this invention Post-it Notes.
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| Number | Title | Issue Date |
| 6706480 | Genetic screening A method of screening for nucleic acid sequence copy no. in a sample genetic material, the method including introducing a no. of different genetic probes to hybridize with the genetic sample. The probes are flanked by the same or substantially the same primer bindin... | 03/16/2004 |
| 6618926 | System for fabricating muntin bars from sheet material A system for fabricating muntin bars from sheet material. Sheet material in the form of thin ribbon stock is fed to a first forming station including a punching mechanism that punches the ribbon stock at a precisely predetermined location. The ribbon stoc... | 09/16/2003 |
| 6397410 | Bath lift A bath lift (10), the lift (10) comprising a housing (12) locatable to a first side (18) of a bath (20). A flexible band (72) is provided which is selectively extendable from the housing (12) across the bath (20) to a second side (86) of the bath (20) suc... | 06/04/2002 |
| 6390916 | Seal card game system A seal card game system providing multiple levels of non-progressive play. The game system awards a master case award to a winning ticket not among the population of individual deal winning tickets. A winning ticket of each deal set does not qualify for t... | 05/21/2002 |
| 6030264 | Flotatable lighting assembly A Rotatable lighting assembly includes a base with a central concave wall that can face a liquid surface and a peripheral portion extending around the concave wall. A shell is constructed so as to extend from the peripheral portion to form a chamber aroun... | 02/29/2000 |
| 6019576 | Pumps for pumping molten metal with a stirring action A non-metallic pump for pumping molten metal includes a motor, a shaft having one end connected to the motor and an impeller connected to the other end of the shaft. A base has a chamber in which the impeller is rotatable. Structure is used to removably i... | 02/01/2000 |
| 5987897 | Ice bank system A refrigeration system control apparatus for use with an ice bank for sequentially cycling a refrigerator compressor on and off based on sensed conditions. The system includes a first temperature probe located a first distance from a refrigerator evaporat... | 11/23/1999 |
| 5911832 | Plasma immersion implantation with pulsed anode Method and apparatus for treating a workpiece implantation surface by causing ions to impact the workpiece implantation surface. An implantation chamber defines a chamber interior into which one or more workpieces can be inserted and includes a conductive... | 06/15/1999 |
| 5885323 | Foamy slag process using multi-circuit lance A method of improving post-combustion heat recovery in a vessel containing a charge of molten ferrous metal and slag includes the use of a lance for the introduction of oxygen gas into the charge. The method includes blowing oxygen into the charge through... | 03/23/1999 |
| 5818028 | Portable data collection device with two dimensional imaging assembly The invention relates to a portable data collection device. The device includes a two dimensional (2D) photosensor array imaging assembly selectively actuatable for reading bar code dataforms and recording an image of an item in the imaging assembly's tar... | 10/06/1998 |
| 5811774 | Extended working range dataform reader with reduced power consumption An extended working range dataform reader with reduced power consumption having a camera assembly and a circuit control board including game control circuitry and exposure control circuitry configured to set an initial gain value and an initial exposure p... | 09/22/1998 |
| 5796088 | Hand held portable bar code dataform reader having a rotatable reader module portion A portable hand held bar code dataform reader is disclosed. The reader includes a main body portion configured to be held in an operator's hand and a bar code reader module portion rotatably secured to the main body portion. The bar code reader module por... | 08/18/1998 |
| 5769884 | Controlled porosity endovascular implant A covered stent for treating a stenotic region in a blood vessel. The stent covering has different porosities in different regions. In those regions, typically the ends, where tissue ingrowth and re-endothelialization are desired, the stent covering is mo... | 06/23/1998 |
| 5760409 | Dose control for use in an ion implanter Electrical charge neutralization effects are known to be factors that affect the dose or concentrations of beam treatment by high current implanters. Raising beam energies to 1 MeV and beyond requires an understanding of the effects of both charge strippi... | 06/02/1998 |
| 5756947 | Ignition switch An ignition switch is disclosed. The switch includes a housing defining an interior region, a cover affixed to an open back end of the housing and supporting a plurality of electrical terminals. Each terminal includes an end portion extending into the hou... | 05/26/1998 |
| 5750975 | Hand held bar code dataform reader having a rotatable reading assembly A bar code dataform reader. The reader includes a housing defining an interior region and supporting an exit window. A bar code dataform reading assembly is mounted on a rotatable support within the housing interior region. The reader further includes sup... | 05/12/1998 |
| 5726392 | Communications housing having grommet assembly An enclosure for interconnecting multiple branch connections from a trunk communications carrier. A housing supports a terminal block having connections for multiple branch cables and includes an opening for routing signal carrying cable into the housing ... | 03/10/1998 |
| 5724019 | Flexible potentiometer A potentiometer for generating an electrical signal. The potentiometer has an elongated carrier formed of a flexible material and a band of resistive material applied to the carrier. A conductive wiper element is coupled to the elongated carrier at a posi... | 03/03/1998 |
| 5662562 | Leg exercise device A leg exercising device for exercising the knee joint of a patient's leg is disclosed. The device includes an elongate lever which is a rod having a cradle at one end to cradle a lower portion of a patient's leg. A fulcrum member is carried on the rod int... | 09/02/1997 |
