-
公开(公告)号：AU3972100A
公开(公告)日：2000-11-14
申请号：AU3972100
申请日：2000-04-11
Applicant: ESSILOR INT
Inventor： HUARD MARC , BESSIERE BENOIT , MASSAU JOEL
Abstract: An injection valve includes an injection channel ( 17 ) that opens outwards via an outlet ( 18 ) and has a specific inlet for the arrival of the molding material ( 19 A) remote from the outlet ( 18 ), in addition to a slider unit ( 20 ) that is moveably mounted in the injection channel ( 17 ) and controls the outlet thereof ( 18 ). The injection channel ( 17 ) has a specific outlet ( 19 B) for discharging the molding material. The invention can be used to mold an optical lens made from a polymerizable synthetic material.
-
公开(公告)号：FR2792243A1
公开(公告)日：2000-10-20
申请号：FR9904579
申请日：1999-04-13
Applicant: ESSILOR INT
Inventor： HUARD MARC , BESSIERE BENOIT , MASSAU JOEL
Abstract: An injection valve includes an injection channel ( 17 ) that opens outwards via an outlet ( 18 ) and has a specific inlet for the arrival of the molding material ( 19 A) remote from the outlet ( 18 ), in addition to a slider unit ( 20 ) that is moveably mounted in the injection channel ( 17 ) and controls the outlet thereof ( 18 ). The injection channel ( 17 ) has a specific outlet ( 19 B) for discharging the molding material. The invention can be used to mold an optical lens made from a polymerizable synthetic material.
-
Patent Agency Ranking
公开(公告)号：DE602004016583D1
公开(公告)日：2008-10-30
申请号：DE602004016583
申请日：2004-01-19
Applicant: ESSILOR INT
Inventor： HUARD MARC , DA SILVA GRACIO , DARMES DANIEL
Abstract: The procedure consists of a staged flow, starting from zero with an initial flow (A) and leading to a nominal flow rate (Dn) of over 40 grams per minute (g/min) which is maintained for a period (B) during which the mold is filled, and a final reduced flow (C) coming back to zero. The initial flow stage (A) has two phases: a first phase (A1) in which the mold is filled to a depth of of at least 2 mm, and preferably up to 7 mm, in its deepest part at a flow rate of under 20 g/min, followed by a second phase (A2) in which the flow rate is increased to nominal (Dn). The first phase itself is divided into two sections: a first section (A11) building up from zero to a first flow rate (Dd) of some 3 - 8 g/min, and a second section (A12) in which the first flow rate is maintained for a period of 4 - 10 seconds. The mold cavity is filled through a needle valve and an orifice in its base, and the polymerization of the molded material is initiated immediately after the cavity is filled.
-
公开(公告)号：AT404354T
公开(公告)日：2008-08-15
申请号：AT06291386
申请日：2006-09-01
Applicant: ESSILOR INT
Inventor： FELTEN YOHANN , HUARD MARC
Abstract: The apparatus, comprising two shells forming a moulding cavity, and a closer with a wall (123) of a synthetic material making contact with the two shells and made with an inlet channel (125) for the moulding material. The closer has a joint (40) of an elastomer material forming the contact wall, and the inlet channel is made in a rigid insert (43) that is at least partly over-moulded by the elastomer material. The outlet aperture (126) of the channel is in the shape of a buttonhole as it tapers from one end to the other, and the overmoulding includes a lining of constant thickness.
-
公开(公告)号：DE602004005084D1
公开(公告)日：2007-04-19
申请号：DE602004005084
申请日：2004-01-16
Applicant: ESSILOR INT
Inventor： HUARD MARC
Abstract: The needle valve consists of a body (25) with a flow channel (30) for a liquid organic plastic material having a tapered section (34) with an angle of 30 - 60 degrees forming a seat for the needle (40). The needle valve consists of a body (25) with a flow channel (30) for a liquid organic plastic material having a tapered section (34) with an angle of 30 - 60 degrees forming a seat for the needle (40). The needle has a shoulder (43) that interacts with the seat for the valve's closed position, and a tip (42) of variable section that provides for a variable flow between open and closed positions. The shoulder and needle tip have blunt surfaces, with the tip having a spherical end and at least one conical section. The valve also has a polymer seal (44) between the body and needle.
-
16.发明专利
公开(公告)号：FR2890592A1
公开(公告)日：2007-03-16
申请号：FR0509338
申请日：2005-09-13
Applicant: ESSILOR INT
Inventor： FELTEN YOHANN , HUARD MARC
Abstract: Il s'agit d'un dispositif pour la réalisation d'une lentille optique en matière synthétique polymérisable, comportant un élément de fermeture apte à enserrer annulairement deux coquilles de moulage pour définir avec lesdites coquilles une cavité de moulage, ledit élément de fermeture comportant une paroi (123) en matière synthétique pour entrer en contact avec lesdites coquilles de moulage, ledit élément de fermeture présentant un canal (125) d'introduction de la matière à mouler débouchant dans la cavité de moulage (15) par une ouverture de coulée (126) ; caractérisé en ce que ledit élément de fermeture (12) comporte un joint (40) formant ladite paroi de contact (123) et ledit canal d'introduction (125), fait d'une matière élastomère et d'un insert (43) rigide surmoulé au moins partiellement par ladite matière élastomère, ledit canal d'introduction (125) étant interne audit insert (43).
-
公开(公告)号：DE60005166T2
公开(公告)日：2004-06-09
申请号：DE60005166
申请日：2000-04-11
Applicant: ESSILOR INT
Inventor： HUARD MARC , BESSIERE BENOIT , MASSAU JOEL
Abstract: An injection valve includes an injection channel ( 17 ) that opens outwards via an outlet ( 18 ) and has a specific inlet for the arrival of the molding material ( 19 A) remote from the outlet ( 18 ), in addition to a slider unit ( 20 ) that is moveably mounted in the injection channel ( 17 ) and controls the outlet thereof ( 18 ). The injection channel ( 17 ) has a specific outlet ( 19 B) for discharging the molding material. The invention can be used to mold an optical lens made from a polymerizable synthetic material.
-
-
-
-
-
-
Search Results
17
records
(took 0.021 seconds)
