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:
May. 15, 1990
Filed:
Dec. 12, 1986
Applicant:
Inventors:
Renato Stignani, Mantova, IT;
Francesco Ferrari, Mantova, IT;
Assignee:
Montedipe S.p.A., Milan, IT;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B23B / ; B23C / ;
U.S. Cl.
CPC ...
29726 ; 408 54 ; 408 82 ; 409143 ;
Abstract
Method for the non-destructive removal of tubes or of portions of tubes from heat exchangers, comprising: