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1. 发明授权

US07469520B2 Heat sealer for stretch wrapping apparatus 有权
标题翻译：拉伸包装机热封机
公开(公告)号：US07469520B2
公开(公告)日：2008-12-30
申请号：US10152346
申请日：2002-05-22
申请人： Patrick R. Lancaster, III , David Eldridge , Steven Hack
发明人： Patrick R. Lancaster, III , David Eldridge , Steven Hack
IPC分类号： B65B53/02 , B65B13/02
CPC分类号： B29C65/10 , B29C66/1122 , B29C66/43 , B29C66/71 , B29C66/73921 , B29C66/80 , B29C66/81451 , B29C66/8322 , B29K2023/0633 , B29K2023/083 , B65B11/025 , B29K2027/06 , B29K2023/12 , B29K2023/0691 , B29K2023/065
摘要： A heat sealing device for sealing layers of plastic film together is provided. In a preferred embodiment, the heat sealing device is incorporated into a stretch wrapping apparatus for wrapping a load. The heat sealing device includes a heater element, an air compressor or blower, and a sealing head in fluid communication with the heater element to distribute the heated air. The sealing head is preferably flexible and includes a plurality of convection ports configured to apply heated air to a portion of the packaging material without being completely covered by the packaging material. At least one insulated film contact portion is provided to distance the convection ports from the plastic film.
摘要翻译：提供一种用于将塑料薄膜层密封在一起的热封装置。在优选实施例中，热封装置结合到用于包裹负载的拉伸包装设备中。热封装置包括加热器元件，空气压缩机或鼓风机，以及与加热器元件流体连通以分配加热的空气的密封头。密封头优选地是柔性的并且包括多个对流端口，该对流端口构造成将加热的空气施加到包装材料的一部分而不被包装材料完全覆盖。提供至少一个绝缘膜接触部分以使对流端口与塑料膜间隔开。

2. 发明授权

US06880316B2 Method and apparatus for wrapping a top and bottom of a load 失效
标题翻译：用于包装负载的顶部和底部的方法和装置
公开(公告)号：US06880316B2
公开(公告)日：2005-04-19
申请号：US09879052
申请日：2001-06-13
申请人： Patrick R. Lancaster, III , Steven Hack , Steven DeGrasse , Don Norris , Curtis Martin
发明人： Patrick R. Lancaster, III , Steven Hack , Steven DeGrasse , Don Norris , Curtis Martin
IPC分类号： B65B11/00
CPC分类号： B65B11/008
摘要： An apparatus and method for wrapping a top and bottom of a load with packaging material is provided. The apparatus includes at least one non-driven packaging material guide is provided for use in combination with a powered conveying surface. The non-powered packaging material guide includes at least one row of non-driven wheels attached to a rail. The force applied by the packaging material as it is wrapped around the guide is supported by both the rail and the at least one row of non-driven wheels. The rail also serves to bridge any gaps between the non-driven wheels, thereby preventing capture of packaging material between the non-driven wheels. Preferably, the packaging material guide includes two rows of non-driven wheels, one on each side of the rail. Further, it is preferable that the rail connect the two rows of wheels such that the two rows of wheels form an angle of 60 degrees between them. The packaging material guide is preferably positioned above the load but may also be positioned either below the load or to the sides of the load.
摘要翻译：提供了用包装材料包装负载的顶部和底部的装置和方法。该装置包括至少一个非驱动包装材料导向器，用于与动力输送表面组合使用。非动力包装材料导向件包括连接到轨道的至少一排非从动轮。由包装材料围绕导向器缠绕的力施加的力由轨道和至少一排非从动轮支撑。轨道还用于桥接非从动轮之间的任何间隙，从而防止在非从动轮之间捕获包装材料。优选地，包装材料导向件包括两排非从动轮，一列在轨道的每一侧上。此外，优选的是，轨道连接两排轮，使得两排轮在它们之间形成60度的角度。包装材料导向件优选地定位在负载上方，但也可以位于负载的下方或负载的侧面。

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