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    • 3. 发明授权
    • Internal liners for oil tankers or barges to minimize oil spills
    • 用于油罐车或驳船的内衬,以尽量减少漏油
    • US5337693A
    • 1994-08-16
    • US947796
    • 1992-09-21
    • Philip E. RossLeonard T. StantonTimothy H. Layne
    • Philip E. RossLeonard T. StantonTimothy H. Layne
    • B63B11/04B63B25/08B63B43/10
    • B63B11/04B63B25/082
    • This invention relates to flexible internal liners for reducing the amount of oil spilled by oil tankers due to groundings, collisions, and other major accidents. The liner comprises a flexible oil-resistant impermeable plastic or rubber, which preferably is reinforced by steel mesh or woven aramid fibers. In one embodiment, a independent segment is provided in each bay between two stiffeners. The horizontal edges of each liner segment are coupled to the stiffeners, near the ends of the stiffeners, to provide enough material for the liner to be pushed inward a substantial distance if a collision or grounding occurs. The edges can be secured by detachable clamps; this will provide watertight seals during normal operation, while allowing the segment to be detached and opened when the hull is inspected. In an alternate embodiment, a larger curtain segment which covers a number of stiffener bays can be secured in a manner that allows the liner to be pressed against or held near the outer edges of the stiffeners, without being pressed into the bays. In this embodiment, the bay spaces will be filled with water in a coordinated manner as oil is loaded into the tanker, to minimize stresses on the liner and to avoid the need for cleaning the bays. Periodic inspection of the outer hull is accomplished by draining both the cargo and the water layer, and unclamping a section of the liner to allow access inspection of the stiffener bays. Similar liners having a "waterbed" configuration can be provided over the bottom shell. In each of these embodiments, the liner segments can be held in the stand-by position by devices having low tensile strength, which are designed to yield and release the liner if an accident occurs.
    • 本发明涉及柔性内衬,用于减少由于基础,碰撞和其他重大事故而导致的油轮溢油量。 衬里包括柔性防油不渗透塑料或橡胶,其优选由钢网或编织芳族聚酰胺纤维增强。 在一个实施例中,在两个加强件之间的每个间隔中提供独立的段。 每个衬垫段的水平边缘在加强件的端部附近耦合到加强件,以提供足够的材料,以便在发生碰撞或接地时衬套被向内推动相当长的距离。 边缘可以通过可拆卸的夹具固定; 这将在正常操作期间提供防水密封,同时允许在检查船体时拆卸和打开段。 在替代实施例中,可以以允许衬垫被压靠或靠近加强件的外边缘的方式来固定覆盖多个加强件托架的较大窗帘段,而不被压入该间隔。 在该实施例中,当油被装载到油罐车中时,间隔空间将以协调的方式填充水,以最小化衬套上的应力并且避免清洁舱的需要。 外部船体的定期检查是通过排放货物和水层来实现的,并且松开内衬的一部分以允许检查加强肋。 具有“水床”构造的类似衬垫可以在底壳上提供。 在这些实施例的每一个中,衬垫段可以通过具有低拉伸强度的装置保持在备用位置,如果发生事故,则其被设计成产生和释放衬套。
    • 4. 发明授权
    • Method for making flat bottom plastic bag
    • 平底塑料袋的制作方法
    • US5102384A
    • 1992-04-07
    • US401773
    • 1989-09-01
    • Philip E. RossMartin J. Brown, deceasedMaureen Hagenburg, heirLetitia A. Brown, heirChristine M. Weiss, heir
    • Philip E. RossMartin J. Brown, deceasedMaureen Hagenburg, heirLetitia A. Brown, heirChristine M. Weiss, heir
    • B31B37/00
    • B31B37/00B31B2221/107B31B2221/20B31B2221/402B31B2221/60Y10S493/936
    • A method is disclosed of constructing a flat bottom in a plastic film tube having an open upper end, a closed lower end formed by a transverse seal, forward and rearward sides and a pair of opposing pleated sides that interconnect the forward and rearward sides. The method includes the steps of releasably engaging a lower vacuum and a lower clamp with a transverse section of the rearward side of the tube to provisionally hold the transverse section. A lateral section of the forward side is gripped and raised by an upper vacuum and an upper clamp to expose a portion of the pleated sides such that first and second pockets are formed, respectively, in the sides. The sealed lower end is drawn toward the upper end to fold the tube along first and second transverse fold lines in the forward side, along a third transverse fold line in the transverse section of the rearward side, and along fourth and fifth fold lines, respectively, in the pleated sides such that the first and second pockets are located in the pleated sides, respectively between the first and third fold lines and the lower end of the bag. Pressure is applied to the tube to form creases along the first, third, fourth and fifth fold lines, which define the perimeter of the flat bottom of the tube.
    • 公开了一种在塑料薄膜管中构造平底部的方法,其具有敞开的上端,由横向密封件形成的封闭下端,前侧和后侧以及一对相互折叠的折叠侧面,其相互连接前侧和后侧。 该方法包括以下步骤:将下部真空和下部夹具与管子后侧的横截面可释放地接合以临时保持横向部分。 前侧的横向部分由上部真空和上部夹具夹持并升高,以暴露一部分打褶的侧面,使得分别在侧面形成第一和第二凹部。 密封的下端被拉向上端,以沿着第一和第二横向折叠线沿着前侧的横向部分中的第三横向折线以及沿第四和第五折线分别沿着第一和第二横向折叠线折叠 在褶皱侧,使得第一和第二袋分别位于打褶的侧面,分别在第一和第三折叠线和袋的下端之间。 压力被施加到管,以形成沿着第一,第三,第四和第五折线的褶皱,其限定管的平底部的周边。