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. 25, 1996
Filed:
Oct. 28, 1994
Franco Borasio, Desana, IT;
Paolo Baracchi, Turin, IT;
TECNOCAR s. r. l., Turin, IT;
Abstract
An apparatus for manufacturing filters for motor vehicles essentially consists of a die (1, 2) in which the filtering element (9) is introduced, around which a channel (25) is formed where a movable frame (10) is lowered having a shape substantially corresponding to that of the filtering element (9), so as to define an injection cavity (27) separated from the filtering element, and an expansion cavity (28) adjacent the filtering element (9) that are communicate one another by the lifting of the movable frame (10), whereby the resin can expand and stick to the filtering element (9). The die is provided with a seal groove (3) acting as a seal gasket and is filled with synthetic resin during the expansion thereof, which resin prevents any further resin from entering the space between the die (2) and the movable frame (10).