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1. 发明授权

US4150519A Packaging apparatus 失效
标题翻译：包装设备
公开(公告)号：US4150519A
公开(公告)日：1979-04-24
申请号：US904377
申请日：1978-05-10
申请人： Walter I. Akkala
发明人： Walter I. Akkala
IPC分类号： B31B3/00 , B65B43/30 , B31B11/00
CPC分类号： B65B43/30
摘要： In plastic pouch forming structure, a pair of vacuum ports such as, for example, cups are provided in each of a pair of opposed vacuum boxes that are horizontally movable toward and away from one another. Each vacuum cup comprises an insert having a first half-face portion that is substantially flush with the vacuum cup's sealing surface, and a second half face portion that is recessed as respects the first face portion. The dividing line between the face portions is essentially a vertically extending edge of the first face portion offset laterally as respects the diameter of the cup. A flattened, gusseted-bottom pouch is placed between the vacuum boxes, in closely spaced relation thereto, and a vacuum is introduced to force the confronting flat surfaces of the pouch onto the vacuum cups and partially into the recessed portions thereof, forming an initial crease on the vertical edge which extends downwardly toward the gusseted bottom of the pouch as the vacuum boxes are moved apart, and partially squaring the cross-sectional configuration of the pouch for insertion of a forming mandrel fully to square up the pouch and move it into a carton or carrier for subsequent filling.
摘要翻译：在塑料袋形成结构中，一对可相对于彼此水平移动的相对的真空箱中的每一个设置有诸如杯子的真空口，每个真空杯包括具有与真空杯的密封表面基本齐平的第一半面部分的插入件和相对于第一面部分凹进的第二半面部分。面部分之间的分界线基本上是第一面部分的垂直延伸的边缘，其相对于杯的直径横向偏移。将扁平的角撑板底袋放置在真空箱之间，与其紧密隔开的关系，并且引入真空以迫使袋的相对的平坦表面进入真空杯并部分地进入其凹部，形成初始折痕在垂直边缘处，随着真空箱移动而向下朝向小袋的角撑板底部向下延伸，并且部分地平衡用于将成形心轴完全插入成形心轴的横截面形状以使其成正方形并将其移动到纸箱或载体，用于随后的填充。

2. 发明授权

US4280313A Packaging apparatus 失效
标题翻译：包装设备
公开(公告)号：US4280313A
公开(公告)日：1981-07-28
申请号：US81528
申请日：1979-10-03
申请人： Walter I. Akkala , Thomas M. Gorshe
发明人： Walter I. Akkala , Thomas M. Gorshe
IPC分类号： B31B3/00 , B65B43/30 , B31B11/00
CPC分类号： B65B43/30
摘要： In plastic pouch forming, improved vacuum boxes that are movable toward and away from one another are provided. Each vacuum box comprises a series of superimposed, paired, mutually spaced vacuum ports in fluid communication with one another, the outer pair of ports being resilient and adapted to frictionally engage a wall portion of a flattened pouch and to flex open upon application of a vacuum to draw portions of the pouch wall into a cavity defined by an underlying port. In the specific and preferred embodiments of the invention, the vacuum boxes comprise (a) a vacuum chamber defined by a hollow metal box body and a cover plate comprising a pair of vacuum ports; (b) a resilient rubber pad affixed to the box cover plate comprising a pair of vertical, elongated vacuum ports, preferably in the form of slots and aligned with overlying the vacuum ports of the cover; and (c) a thin, high friction resilient facing affixed to the rubber pad comprising a pair of vertical, elongated vacuum ports, preferably in the form of slits, and overlying the vacuum slots, preferably in offset lateral relation thereto. A flattened, pouch is placed between the vacuum boxes and a vacuum is introduced to force the confronting flat surfaces of the pouch into frictional engagement with the facing material and to flex the slits formed therein thereby drawing portions of the pouch walls into the slits and partially into the cavity formed by the vacuum slots.
摘要翻译：在塑料袋形成中，提供了能够朝向和远离彼此移动的改进的真空箱。每个真空箱包括彼此流体连通的一系列重叠的，相互间隔的相互间隔的真空端口，该外部一对端口是弹性的并且适于摩擦地接合扁平袋的壁部分并且在施加真空时弯曲打开以将袋壁的部分拉入由下面的端口限定的空腔中。在本发明的具体和优选实施例中，真空箱包括（a）由中空金属箱体限定的真空室和包括一对真空端口的盖板; （b）固定在盒盖板上的弹性橡胶垫片，其包括一对垂直细长的真空端口，优选为狭槽形式并对准盖子的真空端口; 和（c）固定到橡胶垫的薄的高摩擦弹性面，其包括一对垂直的细长的真空端口，优选为狭缝形式，并且覆盖在真空槽上，优选地以与其偏移的横向关系。将扁平的袋放置在真空箱之间并且引入真空以迫使袋的相对的平坦表面与面材料摩擦接合并且弯曲形成在其中的狭缝，从而将袋壁的部分拉入狭缝并部分地进入由真空槽形成的空腔中。

3. 发明授权

US5035103A Self sealing vacuum vent and dome process 失效
标题翻译：自密封真空通风和圆顶过程
公开(公告)号：US5035103A
公开(公告)日：1991-07-30
申请号：US532390
申请日：1990-06-04
申请人： Walter I. Akkala
发明人： Walter I. Akkala
IPC分类号： B65B31/00
CPC分类号： B65B31/00
摘要： This invention relates to the vacuum packaging of products and involves the use of a heat sealable thermoplastic bag in conjunction with a vacuum dome having a sealing edge disposed around its periphery and being connected to a source of vacuum, the thermoplastic bag being entirely closed except for an integral flat vent passage disposed at one peripheral location on the bag. One half of the vent passage is made up of material from one portion of the bag, and the other half of the vent passage is made up of a precisely equal amount of material from an opposite portion of the bag, such that the interior surfaces of said vent passage can tend to adhere together. The novel method in accordance with this invention comprises the steps of placing the thermopalstic bag in a supportive device having a desired configuration, placing the vacuum dome over the vent passage so the vent passage protrudes into the interior of the vacuum dome, with the peripheral edge of the dome in contact with bag portions surrounding the vent passage, reducing the pressure inside the dome so as to cause the egress of air from the interior of the bag out through the vent passage, thereafter removing the dome from contact with the bag, with the sidewalls of the vent member sealing together temporarily, and then taking the final step of heat sealing the opening of the vent passage to effectively prevent the return of air to the interior of the bag.
摘要翻译：本发明涉及产品的真空包装，并且涉及使用可热封的热塑性袋与真空圆顶结合使用，真空圆顶具有围绕其周边设置的密封边缘并且连接到真空源，热塑性袋完全关闭，除了设置在袋的一个周边位置的整体平坦通风通道。通气通道的一半由袋的一部分的材料构成，而排气通道的另一半由相当于袋的相对部分的精确等量的材料制成，所述通气通道可以倾向于粘附在一起。根据本发明的新颖方法包括以下步骤：将热塑性袋放置在具有所需构型的支撑装置中，将真空穹顶放置在通气通道上，使得排气通道突出到真空穹顶的内部，的圆顶与围绕排气通道的袋部分接触，减小了圆顶内部的压力，从而使来自袋子内部的空气从出口通道排出，之后将圆顶与袋脱离接触，通气构件的侧壁临时密封在一起，然后采取热封密封通气通道的开口的最后步骤，以有效地防止空气返回到袋的内部。

4. 发明授权

US4534152A Self sealing vacuumed package 失效
标题翻译：自密封真空包装
公开(公告)号：US4534152A
公开(公告)日：1985-08-13
申请号：US479895
申请日：1983-03-29
申请人： Walter I. Akkala
发明人： Walter I. Akkala
IPC分类号： B65B31/02 , B65D33/01 , B65B31/00
CPC分类号： B65B31/024 , B65D33/01
摘要： Packaging of certain products like cheese is usually done in a vacuum without the presence of heat. Heretofore, a first vacuum was necessary to knit the curds together and to compact the cheese. A second vacuum was then employed to remove air which returned to the package. The present method eliminates the need for the second vacuum. A heat sealable package, containing cheese, and having a tortuous vent passage is subjected to a vacuum. As a full vacuum is achieved, air within the chamber and the package is exhausted. When the chamber is returned to atmospheric pressure, the tortuous seal collapses to form a temporary seal. At the same time, the plastic bag collapses around the cheese which causes the curds to knit together, and compact the cheese. While still in the sealed condition, a permanent heat seal is made across the tortuous vent passage.
摘要翻译：某些产品（如奶酪）的包装通常在没有热量的情况下在真空中进行。迄今为止，需要第一真空来将凝乳编织在一起并压实干酪。然后使用第二个真空去除返回包装的空气。本方法消除了对第二真空的需要。含有干酪并且具有曲折的通气通道的可热封包装受到真空。当达到完全真空时，室内的空气和包装被排出。当腔室返回到大气压力时，曲折的密封件塌缩以形成临时密封。同时，塑料袋在奶酪周围塌陷，导致凝乳一起编织，并压实了奶酪。在仍然处于密封状态的同时，在曲折的排气通道上进行永久热封。

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