公开(公告)号：US20020114859A1

公开(公告)日：2002-08-22

申请号：US09754986

申请日：2002-03-27

Applicant: Future Foam Technology, LLC

Inventor： Philip William Cutler

IPC: B29C043/20 ,  B29C044/58

CPC classification number: A42C2/002 ,  B29C44/086 ,  B29C67/205 ,  Y10T428/31855

Abstract: A mold assembly and method for molding a substantially hemispherical construct from pre-expanded polystyrene beads. The mold assembly includes a female half mold; a mating male half mold; a first male mold insert mountable on the male half mold and having a continuous, peripheral, beveled edge; and a second male mold insert mountable on the first male mold insert. For forming a construct having an impact-resistant exterior layer and an energy-absorbing interior layer, such as a motorcyclist safety helmet, the beads are initially molded under heat and compression between the female half mold and the first insert to form a first intermediate product of a first volume having a continuous, peripheral, beveled edge; said product is thereafter molded under heat and compression between the female half mold and the second insert to a second, reduced volume to form a compressed, second intermediate product, the beveled edge of the first intermediate product serving to uniformly distribute the force applied thereto. The second intermediate product is then remolded to the same volume to improve volume stability, and thereafter backfilled between the male half mold and the female half mold with additional pre-expanded polystyrene beads to form an energy-absorbing inner layer.

Abstract translation: 一种用于从预发泡聚苯乙烯珠模制基本上半球形构造的模具组件和方法。 模具组件包括阴半模; 配对男半模; 第一阳模插入件可安装在阳半模上并且具有连续的周边的倾斜边缘; 以及可安装在所述第一阳模插入件上的第二阳模插入件。 为了形成具有抗冲击外层和能量吸收内层的构件，例如摩托车骑行者安全帽，首先在母模半模和第一插入件之间的加热和压缩下模制珠，以形成第一中间产品 具有连续的，外围的，倾斜的边缘的第一体积; 然后，所述产品在母模半模和第二插入件之间在加热和压缩下成型为第二减小体积以形成压缩的第二中间产品，第一中间产品的斜边用于均匀地分布施加到其上的力。 然后将第二中间产物重塑成相同的体积以改善体积稳定性，然后用附加的预发泡聚苯乙烯珠在阳半模和阴半模之间回填以形成能量吸收内层。

公开(公告)号：US20040201120A1

公开(公告)日：2004-10-14

申请号：US10768096

申请日：2004-02-02

Applicant: LAFARGE NORTH AMERICA, INC.

Inventor： Elizabeth Colbert

IPC: B29C044/20 ,  B05D001/02 ,  B29C044/58

CPC classification number: C04B38/10 ,  B01F3/04446 ,  B01F5/043 ,  B28B19/0092 ,  B28C5/026 ,  B29C44/3446 ,  C04B28/14 ,  C04B40/0028

Abstract: A method of manufacturing gypsum board includes applying compressed air to an input end of a tube, wherein the tube includes the input end, an output end, and a venturi located between the input end and the output end; admitting a foaming agent to the input end of the tube so as to form a mixture of the compressed air and the diluted foaming agent; passing the mixture through the venturi and out the output end; combining the mixture with gypsum and water to form a gypsum slurry; and casting the gypsum slurry onto a continuous web for forming a gypsum board.

Abstract translation: 制造石膏板的方法包括将压缩空气施加到管的输入端，其中管包括位于输入端和输出端之间的输入端，输出端和文丘里管; 允许发泡剂到管的输入端，以形成压缩空气和稀释发泡剂的混合物; 将混合物通过文氏管并输出出口端; 将混合物与石膏和水混合以形成石膏浆料; 并将石膏浆料浇注到用于形成石膏板的连续纤维网上。

公开(公告)号：US20030091680A1

公开(公告)日：2003-05-15

申请号：US10003140

申请日：2001-11-15

Inventor： Karl Jay Blethen

IPC: B29C044/58

CPC classification number: B21J13/02 ,  B21J5/08 ,  B29C57/04 ,  Y10S425/218

Abstract: A die assembly is disclosed for forming a bead on a cylindrical tube. The assembly includes a holder which secures the tube against axial movement so that a portion of the tube protrudes outwardly from the holder along a predetermined axis and in which the holder has a forming surface circumscribing the tube. The die assembly further includes a first die part having a cylindrical mandrel aligned with and slidably receivable into the outwardly protruding portion of the tube. A tubular cylindrical sleeve is mounted to the first die part so that the sleeve is coaxial with the mandrel and so that the tube extends between the mandrel and the sleeve. The sleeve also includes a conical surface coaxially formed about a free end of the sleeve. A second die part has a throughbore complementary in size and shape to the outer periphery of the sleeve so that the sleeve is slidably receivable within the throughbore. This second die part is movable between an extended position in which the sleeve is aligned with the second die part throughbore and a first position in which the sleeve extends at least partially into the second die part throughbore. A spring resiliently urges the second die part towards its extended position. An actuator moves the holder along the predetermined axis between a first position in which the second die part is in its extended position, and a second position in which the second die part is in its retracted position to thereby form the bead between the conical surface on the sleeve, the forming surface on the holder, and the second die part throughbore.

Abstract translation: 公开了一种用于在圆柱形管上形成胎圈的模具组件。 组件包括保持器，该保持器固定管子以防止轴向移动，使得管的一部分沿着预定轴线从保持器向外突出，并且保持器具有围绕管的成形表面。 模具组件还包括第一模具部件，其具有与管的向外突出部分对准并可滑动地接收到圆筒形心轴的第一模具部分。 管状圆柱形套筒安装到第一模具部件上，使得套筒与心轴共轴，并且管子在心轴和套筒之间延伸。 套筒还包括围绕套筒的自由端同轴地形成的锥形表面。 第二模具部件具有与套筒的外周尺寸和形状互补的通孔，使得套筒可滑动地容纳在通孔内。 第二模具部件可以在其中套筒与第二模具部件通孔对准的延伸位置和第二位置之间移动，第一位置中套筒至少部分延伸到第二模具部件通孔中。 弹簧将第二模具部件弹性地推向其伸出位置。 致动器沿着预定轴线沿着预定轴线移动第二模具部件处于其延伸位置的第一位置和第二模具部件处于其缩回位置的第二位置，从而在第二位置之间形成在圆锥形表面之间的胎圈 套筒，保持器上的成形表面和第二模具部件通孔。

公开(公告)号：US20040089965A1

公开(公告)日：2004-05-13

申请号：US10381423

申请日：2003-07-08

Inventor： Guy Malfliet ,  Hugo De Winter ,  Jan Willems

IPC: B29C044/12 ,  B29C044/58

CPC classification number: B29C33/56 ,  B29C33/44 ,  B29C44/1233 ,  B29C44/582

Abstract: For manufacturing a moulded article comprising at least an elastomeric polyurethane skin (9) and optionally a structural backing layer (10) and an intermediate foam layer (12) a mould is used having at least a first mould part (1) comprising at least two mutually movable mould sections (2-4). The skin (9) is moulded with its front against a surface (7) of the first mould part (1) by applying at least one reactive polyurethane mixture to this mould surface. In order to prevent the seam between the mutually movable mould sections (2-4) of the first mould part to leave traces on the front of the moulded skin (9), the first mould part (1) further comprises a removable, flexible liner (6) which is positioned onto these mould sections to cover at least partially the seam therebetween. Since the first mould part (1) comprises mutually movable mould sections (2-4), the design freedom is increased and it is not required to transfer the skin to another mould for providing relatively rigid backing layers to the back of this skin.

Abstract translation: 为了制造包含至少弹性体聚氨酯表层（9）和任选的结构背衬层（10）和中间泡沫层（12）的模制品，使用具有至少第一模具部件（1）的模具，所述第一模具部件（1）包括至少两个 相互移动的模具部分（2-4）。 通过将至少一种反应性聚氨酯混合物施加在该模具表面上，使其表面（9）以其前部模制在第一模具部件（1）的表面（7）上。 为了防止第一模具部件的相互移动的模具部分（2-4）之间的接缝在模制表皮（9）的前部留下痕迹，第一模具部件（1）还包括可移除的柔性衬里 （6），其被定位在这些模具部分上以至少部分地覆盖它们之间的接缝。 由于第一模具部件（1）包括相互移动的模具部分（2-4），所以设计自由度增加，并且不需要将皮肤转移到另一个模具，以在该皮肤背面提供相对刚性的背衬层。

公开(公告)号：US20030006519A1

公开(公告)日：2003-01-09

申请号：US10184395

申请日：2002-06-26

Inventor： Siegfried Helmut Kopp

IPC: B29C044/10 ,  B29C044/58

CPC classification number: B29C44/3461 ,  B29C44/445 ,  H05K3/284 ,  Y10T428/13

Abstract: The invention pertains to a method for treating foamed plastic particles 32 that are present in pourable form, as well as a device for carrying out the method. The invention is characterized by the fact that the foamed plastic particles 32 are reduced in volume in an evacuated environment and then introduced into a mold 10, 34, 46, 52, 56, in which the foamed plastic particles 32 are subsequently restored toward their original outer shape in a non-evacuated environment.

Abstract translation: 本发明涉及一种处理可倾倒形式的泡沫塑料颗粒32的方法，以及用于实施该方法的装置。 本发明的特征在于，发泡塑料颗粒32在抽空环境中体积减小，然后被引入到模具10,34,46,52,56中，其中发泡塑料颗粒32随后被恢复到其原始 外形在非抽真空环境中。