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1. 发明授权

US4949425A Spring loaded block and tackle window sash balance assembly 失效
标题翻译：弹簧加载块和打滑窗扇平衡组件
公开(公告)号：US4949425A
公开(公告)日：1990-08-21
申请号：US259419
申请日：1988-10-19
申请人： Earl L. Dodson , Frederick P. Strobl, Jr.
发明人： Earl L. Dodson , Frederick P. Strobl, Jr.
IPC分类号： E05F1/16
CPC分类号： E05D13/1207 , E05Y2201/67 , E05Y2900/148 , Y10S16/16 , Y10S16/20 , Y10S16/31 , Y10T16/64 , Y10T16/641 , Y10T16/714
摘要： A pre-assembled, spring loaded, block and tackle window sash balance assembly is adapted for providing vertical support for a window sash running in an elongated, generally upright sash run having a generally C-shaped guide channel extending along its plow region. The assembly comprises a generally U-shaped housing for a block and tackle spring balance device. The assembly further includes spaced slide means which are discrete from the housing itself and which are slidably interengageable with the guide channel for removeably attaching the assembly to the sash run. Accordingly, the block and tackle balance assembly may be pre-assembled and then conveniently and efficiently attached to the sash run and supported in a position to provide spring balanced support for a window sash mounted in the sash run.
摘要翻译：预组装的弹簧加载的挡块和滑车窗扇平衡组件适于为在具有沿着其犁区延伸的大致C形的引导通道的细长的，大致直立的窗扇运行中的窗扇提供垂直支撑。组件包括用于块体和滑动弹簧平衡装置的大体上U形的壳体。该组件还包括间隔开的滑动装置，其从壳体本身离散并且与导向通道可滑动地相互接合，用于将组件可移除地附接到窗扇运行。因此，块和滑车平衡组件可以预先组装，然后方便和有效地附接到窗扇跑道并被支撑在为安装在窗扇运行中的窗扇提供弹簧平衡支撑的位置。

2. 发明授权

US5784840A Adjustable window construction 失效
标题翻译：可调节窗构造
公开(公告)号：US5784840A
公开(公告)日：1998-07-28
申请号：US771509
申请日：1996-12-23
申请人： Earl L. Dodson
发明人： Earl L. Dodson
IPC分类号： E05C17/64 , E05F15/12 , E05F1/00
CPC分类号： E05D13/08 , E05F15/616 , E05D13/1207 , E05Y2900/148
摘要： An adjustable window construction is disclosed wherein improved sash carriers prevent damage to any of the components of the window assembly when the sash is forcibly raised to its uppermost position, or when the sash is disengaged from the upwardly biased sash carriers during removal of the sash. When a sash carrier reaches its uppermost position, the novel tapered upper end of the sash carrier gradually engages and wedges within the lower end of the spring cover located above it, slowing the sash carrier and dissipating much of its kinetic energy to reduce the force of final impact of the sash carrier with the spring cover.
摘要翻译：公开了一种可调整的窗构造，其中当门窗被强制地升高到其最高位置时，或者当窗扇在拆除窗扇期间从向上偏置的框架托架脱离时，改进的框架托架防止对窗组件的任何部件的损坏。当窗框载体到达其最上位置时，窗扇的新颖的锥形上端逐渐接合并楔入位于其上方的弹簧盖的下端内，从而减慢了窗扇的载荷并消耗了大量的动能，从而减小了窗扇与弹簧盖的最终影响。

3. 发明授权

US4763447A Torque actuated brake mechanism for spring balanced window sash 失效
标题翻译：用于弹簧平衡窗框的扭矩驱动制动机构
公开(公告)号：US4763447A
公开(公告)日：1988-08-16
申请号：US52430
申请日：1987-05-21
申请人： Garry P. Haltof , Earl L. Dodson
发明人： Garry P. Haltof , Earl L. Dodson
IPC分类号： E05C17/64 , E05F1/16 , E05F3/00
CPC分类号： E05D13/08 , E05D13/1207 , E05Y2900/148
摘要： A brake mechanism utilizes the tension of a spring acting upwardly and the weight of a window acting downwardly to produce a force couple for applying a frictional force to hold a window sash in a preselected position in a sash run. The mechanism is utilized in combination with a jamb liner defining an elongated sash run provided with a C-shaped guide channel in its plow region. The channel has co-planar, laterally spaced, flanges defining a longitudinally extending slot therebetween. A brake component has a pair of shoe portions disposed in the channel adjacent respective internal flange surfaces. The brake component rotates in the channel to move the shoe portions into frictional engagement with the internal flange surfaces. A columnar element rigid with the brake component extends through the slot and presents means disposed outside the channel for applying a torque to rotate the brake component inside the channel. A support platform for a window sash and a balance spring are connected to respective spaced points on the columnar element outside the channel. The connection points are offset so that the tension of the spring acting upwardly and the weight of the sash acting downwardly impose a torque on the element to rotate the brake component and move the brake shoe elements into frictional contact with the internal flange surfaces.
摘要翻译：制动机构利用向上作用的弹簧的张力，并且向下作用的窗的重量产生用于施加摩擦力以将窗框保持在窗扇运行中的预选位置的力对。该机构与限定在其犁区域中设置有C形引导通道的细长窗扇行程的边框衬套结合使用。通道具有共平面的横向隔开的凸缘，其限定了它们之间的纵向延伸的狭槽。制动部件具有一对在相邻的内部凸缘表面的通道中设置的鞋部分。制动部件在通道中旋转以将鞋部分移动成与内部凸缘表面摩擦接合。与制动部件刚性的柱状元件延伸穿过狭槽并且设置在通道外部的装置，用于施加扭矩以使制动部件在通道内旋转。用于窗扇和平衡弹簧的支撑平台连接到通道外的柱状元件上的相应间隔点。连接点被偏移，使得弹簧的张力向上作用，并且窗扇的作用向下的重量施加在元件上的扭矩以旋转制动部件并且使制动蹄元件与内部凸缘表面摩擦接触。

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