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. 12, 1981
Filed:
Sep. 18, 1979
Applicant:
Inventor:
Achille Gallizia, Milan, IT;
Assignee:
Industrie Pirelli S.p.A., Milan, IT;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B29C / ; B29D / ;
U.S. Cl.
CPC ...
249 65 ; 1213 / ; 1213 / ; 249 83 ; 249160 ; 249185 ; 425119 ; 4251 / ; 425417 ; 425442 ; 425D / ; 425D / ; 425D / ; 425D / ; 425470 ;
Abstract
A mold for molding a boot or similar footwear from an elastomeric composition and simultaneously lining the footwear with a fabric, has first and second shells each having a cavity which complements the cavity of the other to form a large cavity which corresponds to the upstanding sides of the footwear and a third shell which has a cavity corresponding to the sole thereof. The three shells are assembled together with a rigid core member enclosed therein which defines the inside of the boot. The core member has an elastically expandable casing. Conduits are arranged in the core member for conveying a fluid under pressure to expand the casing.