CHEMICAL VAPOR INFILTRATION TOOLING FOR OPTIMIZING INFILTRATION IN CERAMIC MATRIX COMPOSITES

    公开(公告)号:US20240300141A1

    公开(公告)日:2024-09-12

    申请号:US18118448

    申请日:2023-03-07

    IPC分类号: B28B7/00

    CPC分类号: B28B7/0029

    摘要: A tooling fixture suitable for use in infiltrating a fibrous preform with a flow of reactant gas includes an outer surface and an inner surface defining a thickness therebetween, and a plurality of holes extending through the thickness of the tooling fixture. The plurality of holes includes a first hole having cylindrical geometry with a first pair of dimensions comprising a first length and a first diameter, a second hole having cylindrical geometry with a second pair of dimensions comprising a second length and a second diameter, and a third hole having cylindrical geometry with a third pair of dimensions comprising a third length and a third diameter. At least one dimension of the first pair of dimensions is different from at least one dimension of the second pair of dimensions, and at least one dimension of the second pair of dimensions is different from at least one dimension of the third pair of dimensions.

    Mold assembly for molding two concrete blocks and method of manufacturing concrete blocks

    公开(公告)号:US12059821B2

    公开(公告)日:2024-08-13

    申请号:US17844700

    申请日:2022-06-20

    IPC分类号: B28B7/28 B28B7/00 B28B7/24

    CPC分类号: B28B7/241 B28B7/0097 B28B7/28

    摘要: A mold assembly and method for molding two concrete blocks in face-to-face non-contacting relationship forms blocks having smooth front faces. The mold assembly includes a mold box having two mold cavities configured to form two blocks in face-to-face non-contacting relationship. A common partition plate separates the two mold cavities and opposite sides of the partition plate form the smooth front faces of the blocks. The two mold cavities are each configured to form a block having a raised front face with a beveled edge around its entire perimeter and a border around the entire perimeter of the beveled edge. The portions of the border at the top and the sides of the raised front face are curved and the portion of the border at the bottom of the raised front face is straight. A core bar is slidably inserted into the mold box beneath the bottom of the partition plate, and opposite sides of the core bar extend into and form the front bottom portions of the mold cavities.

    Pallet forming concrete mold assembly

    公开(公告)号:US11759973B2

    公开(公告)日:2023-09-19

    申请号:US16844025

    申请日:2020-04-09

    申请人: Rod Johnson

    发明人: Rod Johnson

    IPC分类号: B28B7/00 B65D19/00

    摘要: A pallet forming concrete mold assembly includes a bottom wall having a top side, a bottom side and a perimeter edge. The perimeter wall has a rectangular shape and the bottom wall has a length and width each is between 40.0 inches and 60.0 inches. A perimeter wall is attached to and extends upwardly from the perimeter edge. The perimeter wall includes a front wall, a rear wall, a first lateral wall and a second lateral wall. The top side of the bottom wall has a pair of raised sections extending from the front wall to the back wall. The raised sections form forklift slots in a concrete block formed by the bottom and perimeter walls. The raised sections are oriented parallel to each other.