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.
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 |
| 5593298 | Pollutant reducing modification of a tangentially fired furnace For reducing pollutant generation in a tangentially fired furnace, a method and apparatus for modification of a main air-fuel compartment. An extender dish for mounting on the discharge face of the compartment has a wide projection to extend across the di... | 01/14/1997 |
| 5282726 | Compressor supercharger with evaporative cooler Apparatus and method for increasing the capacity of a gas compressor. The apparatus comprises a supercharger for compressing a gas flow and an evaporative cooler for cooling and ducting the supercharged gas flow to the gas compressor. The cooler comprises... | 02/01/1994 |
| 5266003 | Compressor collector with nonuniform cross section A collector for a vaned diffuser in a centrifugal compressor, wherein the radial cross-sectional area of the collector housing at the entrance to the collector outlet duct is 40% to 80% of the entrance area of the outlet duct and progresses smoothly to th... | 11/30/1993 |
| 5240652 | Liquid distributor for a vapor-liquid contacting column An apparatus for distributing liquid over the cross section of a liquid-vapor contacting column comprising a distributor plate having orifices for downward liquid flow and risers for upward vapor flow. Above the distributor plate is a trough for receiving... | 08/31/1993 |
| 5227365 | Fabrication of superconducting metal-oxide textiles by heating impregnated polymeric material in a weakly oxidizing atmosphere Process for producing superconducting metal-oxide textiles comprising impregnating a preformed, organic textile material with metal compounds in a desired atomic ratio, heating the material in a weakly oxidizing atmosphere to pyrolize and oxidize the orga... | 07/13/1993 |
| 5218827 | Pumping of liquified gas Method and apparatus for supplying from a vessel to a pump liquified gas with subcooling so as to avoid cavitation during pumping. A supply conduit supplies liquified gas from the vessel bottom to a pump sump which envelops the flowpath elements of a pump... | 06/15/1993 |
| 5210959 | Ambient-free processing system An apparatus and method for processing a workpiece in an ambient-free, atmosphere of selected gas. A preparation vessel has an opening for entry of the workpiece and a diffuser oriented to emit across the vessel opening a laminar curtain flow of the selec... | 05/18/1993 |
| 5195325 | Liquid gas sampling Apparatus and method for sampling of a liquified gas for composition analysis. A sample flow of liquified gas is induced into the open end of an admitting tube with sufficient length immersed in the liquified gas to avoid vaporization proximate the open e... | 03/23/1993 |
| 5195888 | Multi-layer fluid curtains for furnace openings An apparatus and method for providing a selected atmosphere at and within an opening to the interior volume of a furnace. Two or more paralleled diffusers adjacent to the furnace opening laminarly emit different fluids and provide a multi-layer fluid curt... | 03/23/1993 |
| 5176307 | Wave soldering in a protective atmosphere enclosure over a solder pot A short hood for enclosing and providing a protective atmosphere over not more than the solder pot of a machine for wave soldering printed circuit boards. Other operative areas of the machine are exposed to air. The entrance and exit openings to the hood ... | 01/05/1993 |
| 5171511 | Tuyere and method for discharging gas into a furnace A tuyere and method for discharging an agitating gas into the molten contents of an electrically heated furnace to reduce temperature and composition variations in its contents. The tuyere comprises a refractory plug and sleeve for installation into the r... | 12/15/1992 |
| 5165246 | Transport trailer for ultra-high-purity cryogenic liquids A trailer with piping and accessories capable of maintaining the ultra high purity of a cryogenic liquid while receiving and transporting the liquid, purging an external receiver, and transferring liquid to the receiver. The trailer has a heat exchnger fo... | 11/24/1992 |
| 5158435 | Impeller stress improvement through overspeed A method for improving the capability of a body to withstand stress during rotation of the body by inducing at a selected location in the body a residual compressive stress which opposes the steady tensile stress produced by rotation. The method comprises... | 10/27/1992 |
| 5121875 | Wave soldering in a protective atmosphere enclosure over a solder pot A short hood for enclosing and providing a protective atmosphere over not more than the solder pot of a machine for wave soldering printed circuit boards. Other operative areas of the machine are exposed to air. The entrance and exit openings to the hood ... | 06/16/1992 |
| 5098267 | Apparatus and method for producing and molding structural foam A single-state apparatus for injection molding structural foam articles has a resin plasticating barrel in which a cylindrical plunger reciprocates and rotates. The plunger has a screw section for plasticating resin and advancing the plasticate into a met... | 03/24/1992 |
| 5080729 | Process for rapid quenching in a collapsed bed A method of rapidly quenching articles in a fluidized bed or in a collapsed bed, wherein the bed comprises fine solid particles. A high conductivity gas may be used to transfer heat to or from the fluidized bed or the collapsed bed during at least a porti... | 01/14/1992 |
| 5064479 | Thermal treatment in a fluidized bed Processes and apparatus for the thermal treating of articles, particulary for the quench hardening of metal alloys in an improved fluidized bed containing from 21 to 60 weight percent of fine alumina particles having a size from 20 to 100 microns and from... | 11/12/1991 |
| 5063956 | Fluid delivery pressure control system System and method for controlling process fluid flow to maintain a set delivery pressure at varying demand, including a fluid-loaded, self-operated main regulator and a method for providing the loading pressure therefor. The system also includes a flow re... | 11/12/1991 |
| 5040933 | Trailer for cylindrical container modules A trailer for cylindrical fluid containers, particularly compressed gas tubes, arranged in modules individually removable from the trailer. Each module has a front and a rear bulkhead between which tubes are supported. The tubes have reduced cylindrical e... | 08/20/1991 |
| 4184647 | Electrical cable unwinder A portable electrical cable unwinder comprising a wheeled base with brakes, a rotatable disc upon a thrust bearing, friction supporting retarders, a core frame, and a lid.... | 01/22/1980 |
| 4141560 | Board game apparatus Game apparatus including a planar gameboard having indicia simulating a plurality of separate and unrelated sporting event courses such as a track for a bicycle race and track events, a boat rowing course, a swimming pool, an obstacle course, a baseball d... | 02/27/1979 |
| 4107812 | Squeegee with moisture removing means A squeegee has a handle, and includes an elongated blade holder disposed transverse thereto; the blade holder is formed with an elongated recess of T-shaped cross-section into which an elongated blade, having a matching T-shaped projection, fits, so that ... | 08/22/1978 |
| 4095800 | Map board game apparatus A game apparatus comprising a game board having a map including a plurality of selected countries each distinguishable from the others by the color thereof. A path is superimposed on the game board map including a plurality of first stopping points and on... | 06/20/1978 |
| 4091466 | Hockey garment A unitary hockey garment formed of material comprising a body portion adapted to be snugly worn about the lower trunk area of the body and conforming to the contours thereof, with an integral crotch area associated with the body portion, and a pair of leg... | 05/30/1978 |
| 4026659 | Cooled composite vanes for turbine nozzles A turbine nozzle has inner and outer shrouds structurally connected by hollow core members which together with nose and tail inserts retained in the shrouds form airfoil-shaped vanes. Openings in one of the shrouds supply cooling air to the hollow vane co... | 05/31/1977 |
