Did You Know...
...that power steering was invented by independent inventor Francis W. Davis? As chief engineer in the 1920s of the truck division of the Pierce Arrow Motor Car Company, he saw how hard it was to steer heavy vehicles. So that he would be able to keep the profits from his future invention, Davis left his job, rented a small engineering shop in Waltham, Mass., and developed a hydraulic power steering system that led to power steering.
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| Number | Title | Issue Date |
| 7351936 | Method and apparatus for preventing baking chamber exhaust line clog A method and apparatus involve providing a supply of nitrogen gas, heating the supply of nitrogen gas to a temperature, and ejecting the heated nitrogen gas through the exhaust line of the baking chamber on a periodic basis. The temperature is between a temperature ... | 04/01/2008 |
| 6979368 | Apparatus and method for producing a semiconductor device including a byproduct control system An apparatus includes a reaction chamber installed in a reaction furnace; a discharge port for removing from the reaction chamber reaction byproducts formed during producing of the semiconductor device; a heater for generating heat to the reaction chamber; and a hot... | 12/27/2005 |
| 6966936 | Processing system, evacuating system for processing system, low-pressure CVD system, and evacuating system and trapping device for low-pressure CVD system An object of the present invention is to ensure the stable operation of a vacuum pump for discharging an unused source gas and reaction byproduct gases from a low-pressure processing chamber, to recover the reaction byproducts efficiently for the effective utilizati... | 11/22/2005 |
| 5997607 | Process of condensing metal in condensation chamber A condensation chamber and method for condensing a metal connate from a metal rich gaseous mixture. The condensation chamber includes top and sidewall surfaces that together define a central bore. A gas supply is received in the bore, and as the gas begin... | 12/07/1999 |
| 4940213 | Exhaust processing apparatus An exhaust processing apparatus comprises a cracking furnace for cracking and solidifying exhaust discharged from a reactor for forming crystals on a semiconductor substrate, a first collecting device for collecting relatively large components solidified ... | 07/10/1990 |
| 4540162 | Gas-scrubbing and metal-refining process and system A metal-refining process and a corresponding system characterized by being adapted to minimize the health hazard by appropriate purification of the gases or vapor products resulting from acid action on a metal compound. This metal refining features the us... | 09/10/1985 |
| 4502871 | Apparatus and method for separating wax from an entrainer gas Disclosed is a wax condenser for separating wax from an entrainer gas (or sweep gas) which is introduced into a sintering furnace and then pumped out in order to remove the wax from the furnace. The condenser includes a hot chamber and a cold chamber. Wax... | 03/05/1985 |
| 3933343 | Method and apparatus for melting metals Metallic scrap contaminated with combustibles is melted in a well-type furnace to recover the metallic component with the aid of preheated air and heat generated by burning the fumes generated by the combustible contaminants. The scrap is fed into a depos... | 01/20/1976 |
