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公开(公告)号：US4217998A
公开(公告)日：1980-08-19
申请号：US17440
申请日：1979-03-05
申请人： James E. Alexander
发明人： James E. Alexander
IPC分类号： A45F3/10
CPC分类号： A45F3/10
摘要： The novel weight-balancing device of the present invention is adapted for use in the improved backpack of the present invention. The device comprises a set of two elongated tubes, disposed in telescoping relation to each other with a spring-loaded push button carried by the inner tube adjustably releasably locking the tubes together so that they can have various desired combined lengths. One of the tubes has a slip resistant backpack shoulder strap connector attached at its front end and the other of the tubes has a backpack rear frame connector pivotally secured to its rear end.The improved backpack utilizes a pair of the described novel devices, connected to opposite sides of the backpack rear frame and projecting forwardly to engage the two backpack shoulder straps. Thus, the two devices are disposed on opposite sides of the backpacker. Their purpose is to shift the center of gravity and balance of the backpack from aft of the vertical midline of the backpacker when standing erect with the backpack in place, that is, from a very uncomfortable and clumsy position to a more forward comfortable position adjacent that vertical midline of the backpacker, without the backpacker having to continually tug at the backpack shoulder straps and hunch over to achieve the weight shift. The device is simple, inexpensive, light in weight, durable, easy to install and remove, and is very efficient.
摘要翻译： 本发明的新型重量平衡装置适用于本发明的改进的背包。 该装置包括一组两根细长管，两根细长管彼此伸缩，弹簧加载的按钮被内管承载，可调节地可拆卸地将管锁定在一起，使得它们可以具有各种期望的组合长度。 其中一个管子具有防滑背包肩带连接器，其连接在其前端，另一个管具有枢转地固定到其后端的背包后框架连接器。 改进的背包使用一对所述新颖的装置，连接到背包后框架的相对侧并向前突出以接合两个背包肩带。 因此，两个装置设置在背包客的相对侧上。 他们的目的是将背包的重心和背部平衡从背包客的垂直中线的后方竖立起来，直立于背包的位置，即从一个非常不舒服和笨拙的位置到一个更靠前的舒适的位置 背包客的垂直中线，没有背包客不得不在背包肩带上拖拉，并且跳过来实现重量移动。 该设备简单，价格便宜，重量轻，耐用，易于安装和拆卸，非常高效。
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公开(公告)号：US5850986A
公开(公告)日：1998-12-22
申请号：US904146
申请日：1997-07-31
摘要： A core-chuck device having reusable parts as well as replaceable interchangeable-fins for use within the field of large-scale paper, film, or foil manufacturing. The reusable core-chuck device provides a versatile and lightweight core-chuck of plastic material, where the outermost diameter of the core-chuck can be modified by replacement of radially spaced interchangeable-fins of varying sizes on the core-chuck. The interchangeable-fins are matingly securable within the central-hub of the core-chuck device. The inner-core of the central-hub contains a metallic element that enables mechanical handling of a paper-roll having one core-chuck device inserted into each end of the paper-roll core. An optional end-cap is also included which secures the interchangeable-fins from longitudinal movement with respect to one another. The core-chuck device results in a cost-effective alternative to prior-art devices.
摘要翻译： 具有可再利用部件的芯夹盘装置以及用于大规模纸张，薄膜或箔制造领域的可更换的可互换散热片。 可重复使用的芯卡盘装置提供了一种通用且轻便的塑料材料的卡盘，其中芯卡盘的最外径可以通过在芯卡盘上更换不同尺寸的径向间隔的可互换散热片来改变。 可互换翅片在芯 - 卡盘装置的中心毂内可配合地固定。 中心毂的内芯包含金属元件，其能够机械处理插入到纸卷芯的每一端中的一个芯 - 卡盘装置的纸卷。 还包括可选的端盖，其可互换散热片相对于彼此纵向移动。 芯卡盘装置导致了现有技术装置的成本有效的替代方案。
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公开(公告)号：USD309673S
公开(公告)日：1990-08-07
申请号：US36705
申请日：1987-04-10
申请人： James E. Alexander
设计人： James E. Alexander
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