PatentVote.com: Vote on your favourite invention!


Primary Examiner: Andrews, M. J.
Assistant Examiner:
Attorney: Sughrue, Rothwell, Mion, Zinn and Macpeak

Next ten patents ordered by date:
Process for producing lead
Erosion and corrosion resistant alloys containing chromium, nickel and molybdenum
Lathe cut dental alloy powder
Process for alloying metals
Nickel-base alloys
Silver base brazing alloy
Fenicraly alloy and abradable seals made therefrom
Sintered alloy having wear-resistance at high temperature
Photographic processing composition containing polyvinyl aminimide
Radiation-sensitive compositions and photographic elements containing N-(acylhydrazinophenyl) thioamide nucleating agents
Translate:
En
De
Es
Fr
It
Pt
Ja
Ko
Zh 

 

Title: Method of operating a vertical shaft furnace

Abstract: In a vertical shaft furnace such as a blast furnace where the charge is introduced at the top of the furnace to form a burden which moves downwardly through the furnace to the combustion zone adjacent the tuyeres, the top of the furnace is provided with a sealing arrangement to prevent the escape of effluent gases and the exhaust conduits are disposed through the side of the furnace at an intermediate level between the combustion zone and the top of the burden.


Do you think this is a good invention? Vote now:

 Votes so far: For:(0) Against:(0)
Other info:


Inventors: Gold, Louis (2725 39TH St., NW)

Application Number: 686986
Filing Date: 1976-05-17
Publication_date: 1978-03-21
Assignee:
Primary Class(es): 75/468 48/210
Other Classes:
US Patent Ref:
1924842Aug, 1933Ebner75/41.
2337551Dec, 1943Hansgirg75/41.
3630719Dec, 1971Craig75/41.

Other Refs: Other References: U.S. Steel Making Shaping & Treating of Steel 1957, pp. 253-256.