Did You Know...
...that on Dec. 15, 1836, the Patent Office was completely destroyed by fire? Lost were some 7,000 models, 9,000 drawings, and 230 books plus all records of patent applications and grants.
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 |
| 4820500 | Process for controlled afterburning of a process exhaust gas containing oxidizable substances A process and an apparatus for the thermal incineration of oxidizable substances in a process gas are proposed, whereby the process gas is conveyed through an afterburning apparatus 10 comprising, inter alia, a combustion chamber 18 and a process gas outl... | 04/11/1989 |
| 4658853 | Anti-leak valving system A butterfly-type step subassembly includes a substantially planar valve disc member having a peripheral groove formed in opposite surfaces thereof. Projecting inwardly from the internal walls of the subassembly housing are two non-coplanar, generally semi... | 04/21/1987 |
| 4656972 | Method and apparatus for reducing NOx in exhaust gases from fluidized-bed boiler Temperature of exhaust gases from a fluidized-bed boiler is lowered by means of heat exchange and dust entrained in the exhaust gases is efficiently collected by a dust collector. Part of the gases discharged from the dust collector are mixed with heated ... | 04/14/1987 |
| 4335660 | Apparatus and method for flue gas recirculation in a solid fuel boiler A solid fuel boiler or furnace with a flue gas-air mixture introduced into the fuel grate is disclosed. The flue gas is mixed with air such that approximately 30% of the mixture is flue gas. By providing this mixture under the burning fuel bed, the temper... | 06/22/1982 |
| 4304214 | System of wood combustion employing forced draft A system of wood combustion employing forced draft is disclosed and comprises a forced draft air and flue arrangement which is utilized with a typical wood heater or wood stove. The forced air and flue arrangement includes a blower, a plenum on which the ... | 12/08/1981 |
| 4183306 | Hot gas recirculation type burning furnace This invention relates to a burning furnace of hot gas recirculation type for minimizing fuel cost. The furnace includes a cyclone which receives dust-containing exhaust gases. One or more secondary air-introducing nozzles are provided for the cyclone at ... | 01/15/1980 |
| 4167909 | Solid fuel burner A solid fuel burner utilizing at least two stacked chambers one of which contains a combustion bed for the solid fuel burning process. A second chamber below the first bed containing chamber serves to combust volatile gases unburned in the first chamber w... | 09/18/1979 |
| 3935824 | Method and means of combustion Disclosed is a method of combusting hydrocarbon containing materials and equipment suitable for practicing the method in which the materials are burned in a closed chamber at a temperature significantly above the autogenous ignition temperature of the hyd... | 02/03/1976 |
