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:
Jun. 21, 2005
Filed:
May. 24, 2004
Antonio Proni, Lodi, IT;
Danile Balasso, Calusco D'Adda, IT;
Alan Bottomley, Barton on Trent Staffordshire, GB;
Antonio Proni, Lodi, IT;
Danile Balasso, Calusco D'Adda, IT;
Alan Bottomley, Barton on Trent Staffordshire, GB;
Pirelli Pneumatici S.p.A., Milan, IT;
Abstract
A closed mixer includes a mixing chamber, a pair of rotors, and a pressing ram. The pressing ram is moveable between a resting condition, which allows introduction of material into the mixing chamber, and a working condition. A method of processing polymer-based mixtures and compounds in the closed mixer includes introducing material into the mixing chamber, moving the pressing ram from the resting condition to an upper end-of-stroke position, and moving the pressing ram from the upper end-of-stroke position to a lower end-of-stroke position. A position-time profile of the pressing ram is controlled during moving the pressing ram from the upper end-of-stroke position to the lower end-of-stroke position.