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    • 5. 发明授权
    • Preassembled foldable office suite
    • 预装的可折叠办公套件
    • US6158831A
    • 2000-12-12
    • US268459
    • 1999-03-16
    • Charles R. BrownMarion O. FogleThomas F. Salley
    • Charles R. BrownMarion O. FogleThomas F. Salley
    • A47B3/08A47B21/00A47B43/00A47B81/06
    • A47B3/08A47B21/00A47B3/0803A47B3/0818A47B3/0912A47B43/00A47B81/06A47B81/062A47B2200/0069A47B2210/15A47B2220/0072
    • Foldable, ready to use office furniture suite components are disclosed which include a foldable, ready to use office hutch which may be supported on a base. The hutch has an erect configuration for use as a furniture component and a folded configuration for storage. The hutch includes a back panel included in the hutch, a first side panel pivotally attached to the back panel and a second side panel pivotally attached to the back panel. A horizontal panel is pivotally carried by the back panel and a vertical case panel is pivotally carried by one of the back panel for forming a utility case with one of the first and second side panels. Cabinet panels for forming a utility cabinet within the interior of the hutch include a vertical cabinet panel pivotally carried by one of the back panel and the horizontal panel, and a horizontal cabinet panel pivotally carried by the vertical cabinet panel. At least a first displaced pivot hinge attaches the first panel to the back panel having a pivot displaced a distance from the back panel; at least one second side panel displaced pivot hinge pivotally attaches the second side panel to the back panel having a pivot displaced from the back panel. The hutch has a folded configuration in which the first and second side panels are folded inwardly about the displaced pivots to overlie a portion of at least the horizontal panel and accommodate the horizontal panel, the vertical case panel, and the vertical and horizontal cabinet panels in the folded hutch configuration.
    • 公开了可折叠的,准备使用的办公家具套件组件,其包括可以支撑在基座上的可折叠的,即用的办公室。 这种挂钩具有直立的配置,用作家具部件和折叠配置用于存放。 该离合器包括一个包括在该离合器中的后面板,一个可枢转地连接到后面板的第一侧面板和一个可枢转地附接到后面板的第二侧板。 水平面板由背面板枢转地承载,并且垂直外壳面板由后面板中的一个枢转地承载,用于与第一和第二侧板中的一个形成用具箱。 用于在仓库内部形成实用柜的柜体板包括由后面板和水平面板中的一个枢轴承载的垂直柜面板,以及由垂直柜板枢转地支承的水平柜面板。 至少第一移位的枢转铰链将第一面板附接到后面板,其具有与背面板相距一定距离的枢轴; 至少一个第二侧板移动的枢转铰链将第二侧板枢转地附接到具有从后面板移位的枢轴的后面板。 该离合器具有折叠构造,其中第一和第二侧板围绕位移的枢轴向内折叠以覆盖至少水平面板的一部分,并且将水平面板,垂直壳体面板以及垂直和水平机柜面板 折叠的仓库配置。
    • 8. 发明授权
    • Twist drill for drilling printed circuit board laminates and having an
drill point geometry
    • 用于钻印印刷电路板层压板并具有钻头几何形状的扭曲钻头
    • US4759667A
    • 1988-07-26
    • US796286
    • 1985-11-08
    • Charles R. Brown
    • Charles R. Brown
    • B23B51/02
    • B23B51/02B23B2251/04B23B2251/18Y10T408/909Y10T408/9097
    • A four surface point type drill has its primary clearance faces configured so that their circumferential width decreases as the longitudinal axis of the drill is approached. The trailing edge and cutting edge of the primary clearance face surfaces substantially intersect each other at a point where they both intersect the opposite ends of the chisel edge of the drill point. The chisel edge itself is totally defined by a line formed by the intersection of the two secondary clearance face surfaces of the drill point. This new improved drill point geometry permits the use of reduced primary and secondary clearance face relief angles at the drill point which improves the structural integrity of the cutting edge of the drill and hence reduces chipping at the cutting edge.
    • 四面表面钻头的主要间隙面构造成使得它们的圆周宽度随着钻头的纵向轴线的接近而减小。 主间隙面表面的后缘和切割刃在它们都与钻尖的凿边缘的相对端相交的点处基本相交。 凿子边缘本身完全由钻头的两个二次间隙面表面的相交线形成。 这种新的改进的钻孔几何形状允许在钻头处使用减小的初级和次级间隙面浮雕角度,这提高了钻头的切割刃的结构完整性,并因此减少了切削刃处的切屑。