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. 19, 1996
Filed:
May. 27, 1992
Applicant:
Inventor:
Gino Cocchi, Bologna, IT;
Assignee:
Carpigiani S.R.L., , IT;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B23P / ;
U.S. Cl.
CPC ...
29890035 ; 29890048 ;
Abstract
The invention relates to a method of manufacturing freezing cylinders for ice cream making machines, with incorporated evaporator of the refrigerating circuit, characterized in that it comprises the steps of: forming a helical groove on the outer surface of the freezing cylinder; winding a flat strip of annealed mild steel along said groove in screw-thread fashion, and shrink-fitting a heated cylindrical steel liner on the crests of said thread.