The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Nov. 20, 1984
Filed:
Oct. 13, 1981
Applicant:
Inventor:
Hans Tanner, Schaffhausen, CH;
Assignee:
George Fischer Ltd., , CH;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B22C / ;
U.S. Cl.
CPC ...
164 37 ; 164 12 ;
Abstract
A method of compacting particulate material includes providing a primary fuel mixture of air and natural gas in a closed chamber enclosing a surface of the material to be compacted. An additive gas, such as hydrogen, having a higher combustion velocity is added to the primary fuel/air mix and ignited, creating an exothermic reaction which compacts the material. The additive gas increases the gradient of the pressure rise curve of the combustion. Various fuels and additive gases and disclosed.