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公开(公告)号：US4113674A
公开(公告)日：1978-09-12
申请号：US754730
申请日：1976-12-27
IPC分类号： C08L1/24
CPC分类号： C08L1/24 , D06P3/6008 , Y10S8/92
摘要： Modified, regenerated cellulosics having good receptivity to acid dyes are prepared by introducing a poly-2-alkyl-2-oxazoline, such as poly-2-ethyl-2-oxazoline, having a weight average molecular weight of at least about 10,000 into an aged, cellulose-xanthate solution and forming modified, regenerated cellulosics therefrom. These cellulosics exhibit rapid and quantitative acid-dye absorption and good dye fastness.
摘要翻译： 通过将重均分子量为至少约10,000的聚-2-烷基-2-恶唑啉（例如聚-2-乙基-2-恶唑啉）引入到具有至少约10,000的重均分子量的聚-2-乙基-2-恶唑啉中来制备对酸性染料具有良好接受性的改性的再生纤维素 老化的纤维素 - 黄原酸盐溶液并由其形成改性的再生纤维素。 这些纤维素显示出快速和定量的酸 - 染料吸收和良好的染色牢度。
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公开(公告)号：US20100329782A1
公开(公告)日：2010-12-30
申请号：US12494105
申请日：2009-06-29
IPC分类号： E02D29/14
CPC分类号： E02D29/14 , E02D29/1454 , Y10T29/49826
摘要： A concrete lid for an in-ground utilities box includes a reinforcement structure filled with concrete. The reinforcement structure includes a plastic frame and one or more reinforcing trusses that extend between opposing sidewalls of the plastic frame. The reinforcing trusses also extend substantially between the upper and lower edges of the opposing sidewalls. For example, a reinforcing truss may include a flat truss member that is substantially coplanar with the lower edges of the sidewalls, and an arched truss member that extends towards (but does not reach) a plane defined by the upper edges of the sidewalls. The reinforcing trusses include openings that allow wet concrete to pass through. The sidewalls of the plastic frame protect the edges of the lid from damage. The reinforcing trusses reinforce the concrete lid, eliminating the need for separate reinforcement material.
摘要翻译： 用于地下电力箱的混凝土盖包括一个充满混凝土的钢筋结构。 加强结构包括塑料框架和在塑料框架的相对侧壁之间延伸的一个或多个加强桁架。 加强桁架基本上在相对侧壁的上边缘和下边缘之间延伸。 例如，加强桁架可以包括与侧壁的下边缘基本上共面的平坦桁架构件和朝向（但不到达）由侧壁的上边缘限定的平面延伸的拱形桁架构件。 加强桁架包括允许湿混凝土穿过的开口。 塑料框架的侧壁保护盖子的边缘免受损坏。 加强桁架加固混凝土盖，不需要单独的加固材料。
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公开(公告)号：USD594737S1
公开(公告)日：2009-06-23
申请号：US29312524
申请日：2008-10-28
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公开(公告)号：US08469628B2
公开(公告)日：2013-06-25
申请号：US12494105
申请日：2009-06-29
IPC分类号： E02D29/14
CPC分类号： E02D29/14 , E02D29/1454 , Y10T29/49826
摘要： A concrete lid for an in-ground utilities box includes a reinforcement structure filled with concrete. The reinforcement structure includes a plastic frame and one or more reinforcing trusses that extend between opposing sidewalls of the plastic frame. The reinforcing trusses also extend substantially between the upper and lower edges of the opposing sidewalls. For example, a reinforcing truss may include a flat truss member that is substantially coplanar with the lower edges of the sidewalls, and an arched truss member that extends towards (but does not reach) a plane defined by the upper edges of the sidewalls. The reinforcing trusses include openings that allow wet concrete to pass through. The sidewalls of the plastic frame protect the edges of the lid from damage. The reinforcing trusses reinforce the concrete lid, eliminating the need for separate reinforcement material.
摘要翻译： 用于地下电力箱的混凝土盖包括一个充满混凝土的钢筋结构。 加强结构包括塑料框架和在塑料框架的相对侧壁之间延伸的一个或多个加强桁架。 加强桁架基本上在相对侧壁的上边缘和下边缘之间延伸。 例如，加强桁架可以包括与侧壁的下边缘基本上共面的平坦桁架构件和朝向（但不到达）由侧壁的上边缘限定的平面延伸的拱形桁架构件。 加强桁架包括允许湿混凝土穿过的开口。 塑料框架的侧壁保护盖子的边缘免受损坏。 加强桁架加固混凝土盖，不需要单独的加固材料。
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公开(公告)号：US08028490B2
公开(公告)日：2011-10-04
申请号：US12290190
申请日：2008-10-28
IPC分类号： E04C3/02
CPC分类号： E04C5/20
摘要： A polymeric chair having a rebar cradle and legs of a T-shaped or U-shaped cross-section diverging downwardly from the cradle. The outer surface portions of the legs define segments of a cone. Inwardly extending web portions reinforce the legs. Feet at the distal ends of the legs are disposed to the inside of the outer surface portions. A flat sand plate for the chair has radially extending slots formed therethrough which are proportioned for snug engagement with side surfaces of the feet. The slots are elongate to accommodate different sized chairs having feet spaced at varying radial dimensions. The web portions taper to optimize their reinforcing function and conserve material. In one embodiment, a ring is formed integrally with the legs intermediate the table and the distal ends of the legs. The chair is of a unitary construction and may have an integrally formed strap for extension over the cradle to secure a rebar in place.
摘要翻译： 具有钢筋支架的聚合物椅子和从支架向下分叉的T形或U形横截面的腿。 腿的外表面部分限定了锥体的段。 向内延伸的腹板部分加强腿部。 腿部末端的脚部设置在外表面部分的内侧。 用于椅子的平坦砂板具有穿过其形成的径向延伸的槽，其成比例地与脚的侧表面紧密接合。 狭槽是细长的，以容纳具有在不同径向尺寸上间隔开的脚的不同尺寸的椅子。 网部分逐渐变细以优化其增强功能并节约材料。 在一个实施例中，环与腿之间的腿和腿的远端一体地形成。 椅子是一体式结构，并且可以具有整体形成的带子用于在摇篮上延伸以将钢筋固定到位。
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公开(公告)号：US20090100783A1
公开(公告)日：2009-04-23
申请号：US12290190
申请日：2008-10-28
IPC分类号： E04C5/16
CPC分类号： E04C5/20
摘要： A polymeric chair having a rebar cradle and legs of a T-shaped or U-shaped cross-section diverging downwardly from the cradle. The outer surface portions of the legs define segments of a cone. Inwardly extending web portions reinforce the legs and provide feet at the distal ends of the legs disposed to the inside of the outer surface portions. A flat sand plate for the chair has radially extending slots formed therethrough which are proportioned for snug engagement with side surface of the feet. The slots are elongate to accommodate different sized chairs having fee spaced at varying radial dimensions. The web portions taper to optimize their reinforcing function and conserve material. In one embodiment, a ring is formed integrally with the legs intermediate the table and the distal ends of the legs. The chair is of a unitary construction and may have an integrally formed strap for extension over the cradle to secure a rebar in place.
摘要翻译： 具有钢筋支架的聚合物椅子和从支架向下分叉的T形或U形横截面的腿。 腿的外表面部分限定了锥体的段。 向内延伸的腹板部分加强腿部并且在设置在外表面部分的内侧的腿的远端处提供脚部。 用于椅子的平坦砂板具有穿过其形成的径向延伸的狭槽，其成比例以与脚的侧表面紧密接合。 狭槽是细长的，以适应不同尺寸的椅子，其费用在变化的径向尺寸上间隔开。 网部分逐渐变细以优化其增强功能并节约材料。 在一个实施例中，环与腿之间的腿和腿的远端一体地形成。 椅子是一体式结构，并且可以具有整体形成的带子用于在摇篮上延伸以将钢筋固定到位。
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公开(公告)号：US07451580B2
公开(公告)日：2008-11-18
申请号：US10810219
申请日：2004-03-26
IPC分类号： E04C5/16
CPC分类号： E04C5/20
摘要： A polymeric chair having a rebar cradle and legs of a T-shaped cross-section diverging downwardly from the cradle. The outer surface portions of the legs are arcuate and define segments of a cone. Inwardly extending web portions reinforce the legs and provide feet at the distal ends of the legs disposed to the inside of the outer surface portions. A flat sand plate for the chair has radially extending slots formed therethrough which are proportioned for snug engagement with side surfaces of the feet. The slots are elongate to accommodate different sized chairs having feet spaced at varying radial dimensions. The web portions taper to optimize their reinforcing function and conserve material. In one embodiment, a ring is formed integrally with the legs intermediate the table and the distal ends of the legs. The chair is of a unitary construction and may have an integrally formed strap for extension over the cradle to secure a rebar in place.
摘要翻译： 具有钢筋支架的聚合物椅子和从支架向下分叉的T形横截面的腿部。 腿部的外表面部分是弧形的，并且限定锥形部分。 向内延伸的腹板部分加强腿部并且在设置在外表面部分的内侧的腿的远端处提供脚部。 用于椅子的平坦砂板具有穿过其形成的径向延伸的槽，其成比例地与脚的侧表面紧密接合。 狭槽是细长的，以容纳具有在变化的径向尺寸上间隔开的脚的不同尺寸的椅子。 网部分逐渐变细以优化其增强功能并节约材料。 在一个实施例中，环与腿之间的腿和腿的远端一体地形成。 椅子是一体式结构，并且可以具有整体形成的带子用于在摇篮上延伸以将钢筋固定到位。
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公开(公告)号：USD500668S1
公开(公告)日：2005-01-11
申请号：US29200187
申请日：2004-02-25
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