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:
Jan. 27, 1976
Filed:
Mar. 04, 1975
Applicant:
Inventor:
Mario Cicognani, Milan, IT;
Assignee:
Industrie Pirelli S.p.A., Milan, IT;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B29D / ; B29H / ;
U.S. Cl.
CPC ...
425 / ; 425 40 ; 249 83 ; 4251 / ;
Abstract
A mold for shaping a belt having teeth on opposite sides thereof has a hollow cylindrical mandrel with a surface configuration corresponding to alternate grooves and teeth to be formed on one side of the belt and a plurality of bars arranged side by side around the mandrel having surfaces facing the mandrel corresponding to the configuration of teeth and grooves to be formed on the opposite side of the belt. The bars are supported in radially spaced relation with the mandrel surface in slots in the peripheral surface of end members for the cylinder and are adapted to move under pressure radially inwardly.