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 |
| 6374608 | Shape memory alloy wire actuator A shape memory alloy wire actuator includes a first body member, a second body member and a strand of shape memory alloy wire. The first body member and the second body member extend along a longitudinal axis and are slidably engageable with one another a... | 04/23/2002 |
| 6374609 | Gas generator housing A housing (2) for mounting a gas generatot (7) in a pyrotechnic pretensioner, the housing comprising a hollow container for supporting the gas generator, the container having an opening through which the gas generator (7) may be inserted and having a tape... | 04/23/2002 |
| 6374610 | Secondary air fan for an internal combustion engine A secondary air fan for an internal combustion engine includes a housing in which a motor unit drives a pump unit, the housing having an air inlet channel and an air outlet channel, an air mass sensor, being arranged in one of the channels to control the ... | 04/23/2002 |
| 6374611 | Exhaust turbine for a turbocharger In an exhaust turbine of a turbocharger with a rotor mounted rotatably in a turbine casing having a spiral inlet duct with a guide vane structure including guide vanes arranged around the rotor and extending essentially tangentially to an outer and inner ... | 04/23/2002 |
| 6374612 | Interstage cooling of a multi-compressor turbocharger An interstage cooling system for the turbocharger of an internal combustion engine is disclosed. Diffuser vanes, turning vanes and/or deswirling vanes are used as the heat exchangers in the interstage duct. A coolant fluid is supplied to the heat exchange... | 04/23/2002 |
| 6374613 | Miniaturized waste heat engine A closed loop vapor cycle generated by a special device formed by heat transfer and a vapor expander means it is utilized to convert waste heat from conventional power systems into additional thermodynamic work, thereby improving the overall power system ... | 04/23/2002 |
| 6374614 | Solar power generation and energy storage system A solar energy power system is provided that is effective to use an underlying supporting medium as a heat storage medium. A plurality of lengths of solar energy collector panels are arranged in abutting relationship on the ground and in thermal transfer ... | 04/23/2002 |
| 6374615 | Low cost, low emissions natural gas combustor A combustor dome for use in a combustor has an igniter mounted in a central bore. Moving outward from the bore is a concentric pilot fuel passageway. Concentric about the pilot fuel passageway is an air passageway. Lastly, concentric about the air passage... | 04/23/2002 |
| 6374616 | Heat exchanger A heat exchanger for executing heat exchange between heat exchange between heat exchange bodies (6) on a heat radiation side and heat exchange bodies (3) on a heat absorption side, having low thermal resistance and high performance of heat conduction incl... | 04/23/2002 |
| 6374617 | Cryogenic pulse tube system A pulse tube system especially useful for producing and delivering refrigeration at very cold temperatures wherein a product fluid such as hydrogen is preferably precooled and then liquefied, subcooled and/or densified by heat exchange with ultra cold gas... | 04/23/2002 |
| 6374618 | Cryogenic fluid supply from supercritical storage system A system for providing cryogenic sub-critical liquid oxygen and liquid hydrogen to storage tanks and payloads contained inside the payload bay of a space vehicle is described. The system provides for transferring cryogenic fluid from a supercritical stora... | 04/23/2002 |
| 6374619 | Adiabatic micro-cryostat system and method of making same A cooling apparatus is described which includes a throttling valve and an adiabatic chamber having an input and an output, the output connected to an input of the cryostat. With such an arrangement, an improved cooling apparatus is provided with improved ... | 04/23/2002 |
| 6374620 | Pressure equalization port Methods and apparatus for pressure equalization port devices, which are particularly suited for preventing vacuum seals in ultra low freezers are disclosed. An application of the pressure equalization port method and apparatus to ultra low freezers is als... | 04/23/2002 |
| 6374621 | Refrigeration system with a scroll compressor A refrigeration system includes a singular scroll compressor, a condenser and a compressor. The system is charged with R410A refrigerant. The system finds particular use in an environment testing and conditioning apparatus having means to deliver conditio... | 04/23/2002 |
| 6374622 | Ice bank control with voltage protection sensing The present invention is an apparatus and method that regulates the size of an ice bank (50) and that prevents short cycling of the compressor (30) therefor and operation thereof at undesired voltages. A microprocessor based control circuit (10) includes ... | 04/23/2002 |
| 6374623 | Stable providing with a climate control system, and also a method for controlling the climate in such a stable The invention relates to a stable comprising a floor, upright walls bounding said floor, in which walls one or more fans are present, and a roof covering a space bounded by said floor and said walls, in which roof means for exhausting spent air are presen... | 04/23/2002 |
| 6374624 | On/off solenoid expansion device A refrigerant flow-control valve operable between a no-flow condition and a flow condition in response to a control signal supplied thereto. The flow-control valve includes a tubular-shaped body forming a refrigerant passageway extending from an inlet to ... | 04/23/2002 |
| 6374625 | Air conditioning systems An air conditioning system including a compressor, a heating circuit, and a capacity controller. The compressor has a suction port, a discharge port, a driving unit provided within a driving chamber, a first passage and a second passage. The driving unit ... | 04/23/2002 |
| 6374626 | Refrigerated transport vehicle One object of the present invention is to provide a refrigerated transport vehicle which comprises a small and light weight cooling system easily fitted to the vehicle; in order to accomplish the above object, the refrigerated transport vehicle comprising... | 04/23/2002 |
| 6374627 | Data center cooling system A data center having multiple rows of computer racks for holding heat-generating computer equipment is cooled by a liquid overfeed air conditioning unit that provides supply air at a temperature of about forty degrees Fahrenheit (40° F. or lower). The ai... | 04/23/2002 |
| 6374628 | Cooling device A cooling device having an air conduit for cooling air, which flows horizontally through a heat exchanger, for instance an evaporator, with vertically positioned fins, and with an air deflector, which is positioned below the evaporator and collects evapor... | 04/23/2002 |
| 6374629 | Lubricant refrigerant composition for hydrofluorocarbon (HFC) refrigerants A lubricant-refrigerant composition contained within a compression refrigeration system is disclosed which comprises (A) at least one fluorine-containing hydrocarbon refrigerant containing 1 to 3 carbon atoms, further wherein fluorine is the only halogen in sa... | 04/23/2002 |
| 6374630 | Carbon dioxide absorption heat pump A carbon dioxide absorption heat pump cycle is disclosed using a high pressure stage and a super-critical cooling stage to provide a non-toxic system. Using carbon dioxide gas as the working fluid in the system, the present invention desorbs the CO2 | 04/23/2002 |
| 6374631 | Economizer circuit enhancement An optimized position for an economizer shut-off valve, or other method of increasing the volume in an economizer line is disclosed In one embodiment, the economizer shut-off valve is positioned directly downstream of the economizer heat exchanger. In a s... | 04/23/2002 |
| 6374632 | Receiver and refrigerant cycle system In a receiver for separating gas refrigerant and liquid refrigerant and for storing liquid refrigerant for a refrigerant cycle, refrigerant form a condensing portion of a condenser flows into an upper side of a tank member of the receiver from a first ref... | 04/23/2002 |
| 6374633 | Pelletizing system The present invention is an improved dry ice pellet manufacturing system including an automated helical injection system, a chamber having a greater filter screen ratio than prior art designs and a compressing mechanism. The automated helical injection sy... | 04/23/2002 |
| 6374634 | Column for the cryogenic separation of gaseous mixtures and method for the cryogenic separation of a mixture containing hydrogen and CO using this column Column for the cryogenic separation of gaseous mixtures comprising: liquid traps (10, 26, 27) located between two active zones (5, 14, 28, 29) consisting of a cylindrical container with a perforated bottom (11) and defining, with the column, an annular space (... | 04/23/2002 |
| 6374635 | PFC gas recovery process and apparatus The present invention aims to provide a process and an apparatus for recovering a PFC gas, which can readily bring cooling traps to a cryogenic temperature with a low-capacity refrigerator and can recover a high-purity PFC gas by applying deep freeze sepa... | 04/23/2002 |
| 6374636 | Bath reboiler-condenser and corresponding air distillation plant This bath reboiler-condenser (4), of the brazed plate type, includes vaporization passages (11) subdivided into a plurality of stacked vaporization regions (13A to 13C) each of which is immersed in a partial height bath (28A to 28C), and means for feeding... | 04/23/2002 |
| 6374637 | Process for producing a linearly-miniaturized densified optical article using a mold having an internal volume which is a homothetic copy of the optical article A process for producing a linearly-miniaturized, densified optical product, which entails a) cold filling a mould with a liquid colloidal dispersion formed from a chemical precursor; b) polycondensing the liquid colloidal dispersion to obtain a gel; c) su... | 04/23/2002 |
| 6374638 | Fabrication method of graded index silica glass A fabrication method of graded index silica glass is disclosed. The method according to the present invention includes the steps of dispersing to form sol by mixing a starting material with a dispersion medium; molding the sol into a moisturized gel with ... | 04/23/2002 |
| 6374639 | Silica glass and its manufacturing method A method is provided for manufacturing a silica glass that is substantially free of chlorine. The method includes the step of separately expelling a silicon tetrafluoride gas, a combustion gas, and a combustible gas from a burner made of silica glass, the... | 04/23/2002 |
| 6374640 | Method for compaction of flat glass panes A simple and economical method is described for compacting or shrinking flat glass panes. The method ensures high temperature homogeneity in the glass. First, the glass panes are cleaned and then a stack of glass panes to be treated is assembled without a... | 04/23/2002 |
| 6374641 | Method of making an optical fiber by melting particulate glass in a glass cladding tube An optical article having a rare earth doped, fluorinated aluminosilicate glass core composition consisting essentially, in mole %, of: SiO2 0-90 GeO2 0-90 ... | 04/23/2002 |
| 6374642 | Method and apparatus for combustion-enhanced vaporization An apparatus for producing a glass soot includes a first a burner having a droplet-emitting first region, a gas-emitting second region surrounding the first region, and a gas-emitting third region surrounding the second region. The first region emits a gl... | 04/23/2002 |
| 6374643 | Composite thread containing metal-plated yarns and warp-knit fabric thereof A thread and a fabric are provided which are capable of being dyed to have a desired color and are formed of a metal-plated yarn excellent in antibacterial and electro-magnetic shielding properties. The thread for achieving this object is a composite thre... | 04/23/2002 |
| 6374644 | Equipment washer A washing machine includes a frame, a tub rigidly mounted to the frame, and at least one basket rotatably mounted inside the tub. The basket is an open-lattice sided container having a releasably closable lid. The basket is adapted for holding articles of... | 04/23/2002 |
| 6374645 | Security locks There is disclosed herein a relatively simple locking device for sporting items such as skateboards, snowboards, snow skis, and the like. In one form of the locking device, the same includes a member which can be affixed to a wheel truck of a skateboard, ... | 04/23/2002 |
| 6374646 | Padlock security cap A conventional personal storage locker unit padlock assembly having a padlock body and a padlock shackle is combined with a separate unitary padlock cap that co-operates with the padlock body and the padlock shackle hinge and latch arms and that functions... | 04/23/2002 |
| 6374647 | Anti-theft device for spectacle frames Anti-theft device for spectacle frames comprising a housing (10) forming an opening (18) to receive therein one bow (34) of the spectacle frame. By clamping means (26) in the housing this can be fastened to the bow. The clamping means has a rotatable oper... | 04/23/2002 |
