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29 条记录 (耗时 0.023 秒)

    Roof scuttle safety railing system
    1.
    发明申请
    Roof scuttle safety railing system 审中-公开

    公开(公告)号：US20050115173A1

    公开(公告)日：2005-06-02

    申请号：US10925443

    申请日：2004-08-25

    申请人： Roger Joyce ,  Donald Barker ,  Kenneth Gleason ,  James Gleason

    发明人： Roger Joyce ,  Donald Barker ,  Kenneth Gleason ,  James Gleason

    IPC分类号： E04D13/03 ,  E04B7/18

    CPC分类号： E04D13/0315 ,  E04D13/0335 ,  Y10S256/06

    摘要： A roof scuttle safety railing system is provided for an existing or new roof scuttle which railing may be installed on the roof scuttle by unskilled labor without compromising the integrity of the weather seal of the roof scuttle. In one embodiment, pivotal corner brackets are secured to the capflashing of a roof scuttle with the vertical members of the safety railing being inserted in openings in the brackets. In another embodiment, an elongated bracket is used along two opposed sides of the roof scuttle which brackets are firmly held against the outside walls of the roof scuttle by tie rods, a strap or a cable. The elongated bracket has vertical openings at its distal ends for securing the vertical members of the safety railing and horizontal openings or slots for the tie rods, straps or cables. A hinged gate is also provided which preferably has a self-closing hinge.

    Barrels for firearms and methods of manufacturing the same
    4.
    发明授权
    Barrels for firearms and methods of manufacturing the same 失效
    枪支枪和制造方法相同

    公开(公告)号：US5894770A

    公开(公告)日：1999-04-20

    申请号：US853802

    申请日：1997-05-09

    申请人： Henry A. Rudkin, Jr. ,  Donald Barker

    发明人： Henry A. Rudkin, Jr. ,  Donald Barker

    IPC分类号： F41A21/18 ,  B23B1/00

    CPC分类号： F41A21/18 ,  Y10T407/15 ,  Y10T407/23 ,  Y10T82/10 ,  Y10T82/2502 ,  Y10T82/2529

    摘要： Rifling for the barrel of a firearm includes a first gain twist region for increasing the rotational velocity of a bullet as it travels from the breech towards the muzzle end of the barrel, and a second region in which the rifling is of a constant twist so that the bullet exits the muzzle end of the barrel at a constant rotational velocity. The bore defined in the barrel is tapered in a direction from the breech end to the muzzle end so that the diameter of the muzzle opening of the barrel is less than the diameter of the breech opening. The angle of the rifling is variable with the rate of the gain twist of the rifling. The gain twist of the rifling in the barrel is formed by a button, preferably having a sinusoidal shaped periphery, which is pulled through the barrel during the manufacturing process. The smooth periphery of the button prevents shredding of the barrel when the button is twisted at different speeds to provide the variable gain twist of the rifling in different sections of the barrel. In a further aspect of the invention, an apparatus is provided for selectively varying the rotational speed of the button to form the desired gain twist of the rifling during manufacture of the barrel.

    摘要翻译： 用于枪械枪的步枪包括第一增益扭转区域，用于当子弹从后枪朝向枪管的枪口端行进时增加子弹的旋转速度，以及第二区域，其中膛线具有恒定的扭转，使得 子弹以恒定的旋转速度离开枪管的枪口端。 在筒体中限定的孔在从后膛端到枪口端的方向上是锥形的，使得枪管的枪口开口的直径小于枪口的直径。 膛线的角度随着膛线的增益扭曲率而变化。 枪管中的膛线的增益扭曲由优选地具有正弦形周边的按钮形成，该按钮在制造过程中被拉过枪管。 当按钮以不同的速度扭转时，按钮的平滑周边防止料筒的破碎，从而在筒的不同部分提供膛线的可变增益扭曲。 在本发明的另一方面，提供了一种装置，用于选择性地改变按钮的旋转速度，以在筒的制造过程中形成期望的膛线增益扭矩。

    Multi-component, product handling and delivering system
    8.
    发明授权
    Multi-component, product handling and delivering system 失效
    多组件，产品处理和交付系统

    公开(公告)号：US06572256B2

    公开(公告)日：2003-06-03

    申请号：US10266053

    申请日：2002-10-07

    申请人： James P. Seaton ,  Donald Barker

    发明人： James P. Seaton ,  Donald Barker

    IPC分类号： B01F1306

    CPC分类号： B01F13/002 ,  A61B2050/0064 ,  A61C5/68 ,  A61F2002/30561 ,  A61F2002/4685 ,  A61F2250/0071 ,  B01F7/00408 ,  B01F13/0033 ,  B01F15/00506 ,  B01F15/0205 ,  B01F15/0206 ,  B01F15/0212 ,  B01F15/0216 ,  B01F15/0225 ,  B01F15/0267 ,  B01F15/0278 ,  B01F2215/0029

    摘要： By providing a fluid transfer assembly, two components forming bone cement are maintained separately from each other until actual intermixing thereof for use is desired, with the liquid monomer component being completely dispensed from a sealed unit directly into the mixing vessel in a closed loop manner, without exposure thereof to the user and without breakage of the container holding the liquid monomer, and a unique, multi-component, product handling and delivering system is achieved. In accordance with the present invention, the fluid transfer assembly is constructed for cooperating with the sealed vial or tube containing the liquid monomer and the mixing vessel for completely extracting all of the liquid monomer from the vial/tube in a closed loop operation and directly delivering the liquid monomer into the mixing vessel containing the dry powder. This transfer operation is achieved upon demand by the user, while preventing the liquid monomer from being exposed to the user or to the surrounding area.

    摘要翻译： 通过提供流体转移组件，形成骨粘固剂的两个组分彼此分开保持，直到需要其实际混合使用，液体单体组分从密封单元中以闭环方式直接分配到混合容器中， 而不会暴露于使用者，并且不会容纳保持液体单体的容器，并且实现了独特的多组分的产品处理和输送系统。 根据本发明，流体转移组件被构造成与含有液体单体和混合容器的密封小瓶或管配合，用于在闭环操作中从小瓶/管中完全提取所有液体单体，并直接递送 液体单体进入装有干燥粉末的混合容器中。 这种转印操作是在用户要求时实现的，同时防止液体单体暴露于使用者或周围区域。