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公开(公告)号：EP3879063A1
公开(公告)日：2021-09-15
申请号：EP21160738.7
申请日：2021-03-04
申请人： Pella Corporation
摘要： Disclosed herein is an electrostatic shutter system including an electrostatic shutter configured to be selectively raised and lowered based on a voltage applied to the electrostatic shutter, at least one sensor system configured to detect a position of the electrostatic shutter, and a controller communicatively coupled to the electrostatic shutter and the at least one sensor system. The controller is configured to apply an initial voltage to the electrostatic shutter to lower the electrostatic shutter, receive an output signal from the at least one sensor indicating the electrostatic shutter has reached a predetermined position, and based on the received output signal from the at least one sensor, apply an updated voltage to the electrostatic shutter to hold the shutter at the predetermined position.
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公开(公告)号：EP1204529B1
公开(公告)日：2013-05-29
申请号：EP00954150.9
申请日：2000-06-20
申请人： Pella Corporation
CPC分类号： B29C70/521
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公开(公告)号：EP1204529A1
公开(公告)日：2002-05-15
申请号：EP00954150.9
申请日：2000-06-20
申请人： Pella Corporation
IPC分类号： B29C70/52
CPC分类号： B29C70/521
摘要： A method of pultrusion includes collating an assembly of substantially longitudinally continuous fibrous elements (126, 18', 18') and a resin from a bath (132, 122), pulling the elements (126, 18', 18') and the resin through a die (54) to shape the elements and to effect setting of the resin, where one of the elements is a mat (18a) specially designed to transport primarily transverse fibers (32) into the part (10). The mat has a first layer (34) containing a plurality of glass fibers (32) which extend substantially transversely of the mat (18a) so as to be arranged in the part (10) to provide strength to the part (10) primarily in the transverse direction.
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