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公开(公告)号:US10189201B2
公开(公告)日:2019-01-29
申请号:US15157844
申请日:2016-05-18
Inventor: Yvonnig Guezennec , Stephane Toutain , Jean-Francois Coing , Serge Dupont
IPC: B29C49/22 , B29C49/00 , B29C49/04 , B29C49/20 , B29C49/78 , B29C49/60 , B29C65/02 , B29L31/00 , B60K15/03
Abstract: A method for manufacturing a hollow body, typically a tank, from a plastic material. The method includes molding a preform into shells in a molding tool; joining an insert to an inner surface of a shell of said shells, the insert defining a sub volume within the hollow body to be made; joining together the shells to form the hollow body by closing the molding tool and applying a main pressure to a main volume enclosed by the shells. It is proposed to apply a sub pressure to the sub volume while applying the main pressure to the main volume, such that a pressure difference between the main volume and the sub volume is bigger than 0.20 bar (P1′−P2′>0.20 bar) and smaller than 3.00 bar (P1′−P2′
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公开(公告)号:US11305644B2
公开(公告)日:2022-04-19
申请号:US16585545
申请日:2019-09-27
Inventor: Jean-Francois Coing , Sebastien Jouie , Yvonnig Guezennec , Philippe Coulon , Andre George , Jozef Franko
IPC: B60K15/04 , B29C49/20 , B29C51/12 , B60K15/03 , B65D25/42 , B29L31/00 , B29C51/26 , B29K23/00 , B29C49/48 , B29C49/04 , B29C49/22 , B29C49/42 , B29K31/00
Abstract: The invention relates to a tank of plastics material produced by blow-molding of a parison, incorporating a welding spout, of a shape projecting from its outer surface which has an edge configured to be welded to a corresponding edge of an attached part, the welding spout ending axially, on an inside of the tank, in a shape resulting from contact molding between the parison and a molding component, in which the welding spout ends axially on an outside of the tank in a shape resulting from contact molding between the parison and a molding component.
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公开(公告)号:US11021051B2
公开(公告)日:2021-06-01
申请号:US15748007
申请日:2016-07-29
Inventor: Jean-Francois Coing
Abstract: A liquid vehicle tank (1) having a wall made of a plastic material, the tank (1) comprising a component (3, 5) affixed to the wall, the component (3, 5) having a portion (10) embedded in the wall, the embedded portion (10) having an external surface (21) a part of which is chemically incompatible with the plastic material of the wall, wherein the tank (1) also comprises a strengthening element welded to the wall over the embedded portion (10) of the component (3, 5).
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公开(公告)号:US10434873B2
公开(公告)日:2019-10-08
申请号:US15746999
申请日:2016-07-20
Inventor: Jean-Francois Coing
Abstract: An inlet check valve intended to be entirely located within an internal volume delimited by a liquid tank of a vehicle and a filler pipe welded to the tank, the filler pipe defining a downstream direction followed by a liquid filling the tank, and an upstream direction opposite thereto the inlet check valve comprising a tube and, at the upstream end of the tube, resilient means for adapting the form of the tube to the internal wall of the filler pipe. The inlet check valve comprises hook means for securing the tube to an internal wall of the filler pipe and prevent the inlet check valve from moving within the filler pipe. The tube bears a skirt ending with an edge which can merge with the filler pipe wall when the latter is welded to the tank, making the edge a seal part of the inlet check valve.
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公开(公告)号:US11110792B2
公开(公告)日:2021-09-07
申请号:US16467804
申请日:2017-12-22
Inventor: Jean-Francois Coing , Philippe Convain , Laurent Duez , Pierre De Keyzer
IPC: B60K15/03
Abstract: A plastic vehicle tank defining an interior volume provided to contain liquid and comprising: a. an upper wall; b. a lower wall; c. at least one connecting element joining the upper wall to the lower wall of the plastic vehicle tank, said at least one connecting element being located inside the interior volume provided to contain a liquid, and comprising a structure made of continuous fibers embedded in a matrix.
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公开(公告)号:US10471823B2
公开(公告)日:2019-11-12
申请号:US15108340
申请日:2014-12-26
Inventor: Jean-Francois Coing , Sebastien Jouie , Yvonnig Guezennec , Philippe Coulon , Andre George , Jozef Franko
IPC: B60K15/04 , B29C49/20 , B29C51/12 , B60K15/03 , B65D25/42 , B29L31/00 , B29K23/00 , B29C49/04 , B29C49/22 , B29C49/42 , B29C51/26 , B29C49/48 , B29K31/00
Abstract: A method for forming a welding spout of a plastic tank from a multilayer parison, during blowing of the parison for manufacturing the tank. The method includes, in a blowing mold including two cavities and an insert, one of the cavities delimiting a recess for forming the welding spout, the recess having a mouth opening opposite the insert: providing a push member on the insert opposite the mouth of the recess of the cavity, capable of assuming a first position set back from the recess and a second position in which the push member occupies a portion of the mouth of the recess; positioning the push member in the first position thereof; blowing the parison to match a shape of the cavities; during creeping of the parison towards the inside of the recess, moving the push member into the second position thereof.
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