公开(公告)号：US06175776B1

公开(公告)日：2001-01-16

申请号：US09116031

申请日：1998-07-15

申请人： Richard Kuchta ,  Alexander Zusmanovich ,  Joseph Vivirito

发明人： Richard Kuchta ,  Alexander Zusmanovich ,  Joseph Vivirito

IPC分类号： G06F1730

CPC分类号： A41H43/0292 ,  B26D7/018 ,  Y10T83/0429 ,  Y10T83/654

摘要： In an apparatus for minimizing vacuum losses from a permeable support surface having one or more layers of sheet-type work material positioned thereon, the support surface includes opposed lateral edge surfaces, each defining an upper and lower section. At least two upper seals are coupled to the frame, each engaging the upper section of one of the lateral edge surfaces and extending approximately the length of the support surface. At least two side seals are also provided and are coupled to the frame, each engaging the side section of one of the lateral edge surfaces and also extending approximately the length of the support surface. During operation of the apparatus, vacuum is drawn through the permeable support surface and causes the upper and side seals to be drawn and held against the lateral side sections, forming a seal there against.

摘要翻译： 在用于从具有定位在其上的一层或多层片状工作材料的可渗透支撑表面使真空损失最小化的装置中，支撑表面包括相对的侧边缘表面，每个边缘表面限定上部和下部。 至少两个上部密封件联接到框架，每个接合上述横向边缘表面中的一个的上部并且大致延伸支撑表面的长度。 还提供至少两个侧密封件并且联接到框架，每个侧部密封件接合一个侧边缘表面的侧部并且还大致延伸支撑表面的长度。 在设备的操作期间，通过可渗透的支撑表面抽真空，并使上密封件和侧密封件被拉伸并保持抵靠在侧面部分上，从而在其上形成密封。