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    Molded plastic siding panel
    61.
    发明授权
    Molded plastic siding panel 有权
    模压塑料壁板

    公开(公告)号：US6421975B2

    公开(公告)日：2002-07-23

    申请号：US76602401

    申请日：2001-01-19

    Applicant: ALCOA INC

    Inventor： BRYANT DAVID A ,  ERNST DANIEL J ,  GRIMAN GEORGE A

    IPC: E04F13/08 ,  E04D1/08

    CPC classification number: E04F13/0864 ,  Y10T156/1036 ,  Y10T156/1051 ,  Y10T428/24669

    Abstract: A molded plastic panel for covering an exterior building wall includes a laterally directed lead fin, a laterally extending groove below the lead fin, and a rearwardly directed middle wall between rows of simulated shingles, all for joining laterally adjacent panels. A side flange extending outwardly of the panel may also be included. The molded plastic panel preferably also includes at least one row of simulated shingles separated by a plurality of gaps each having a randomly varying width in order to camouflage spacings between adjacent panels that change because of thermal contraction and expansion. In a particularly preferred embodiment, the panel body includes a locking tab and a folding flange. The folding flange includes a locking lip for engaging a locking tab on an adjacent panel and a flexible hinge connecting the locking lip to the panel body. The flexible hinge allows the folding flange to be disconnected from the locking tab when replacing a single panel.

    Abstract translation: 用于覆盖外部建筑物墙壁的模制塑料面板包括横向定向的引线鳍片，在引线鳍片下方的横向延伸的凹槽以及在各排模拟板条之间的向后指向的中间壁，全部用于连接横向相邻的板材。 还可以包括从面板向外延伸的侧凸缘。 模制塑料板优选地还包括由多个间隙分开的至少一排模拟木瓦，每个间隙具有随机变化的宽度，以便伪装由于热收缩和膨胀而改变的相邻板之间的间隔。 在特别优选的实施例中，面板主体包括锁定凸片和折叠凸缘。 折叠凸缘包括用于接合相邻面板上的锁定突舌的锁定唇缘和将锁定唇缘连接到面板主体的柔性铰链。 柔性铰链允许在更换单个面板时将折叠法兰与锁定片断开。

    Aluminum alloy products
    62.
    发明授权
    Aluminum alloy products 有权

    公开(公告)号：US11261507B2

    公开(公告)日：2022-03-01

    申请号：US15005191

    申请日：2016-01-25

    Applicant: Alcoa Inc.

    Inventor： John Newman ,  Tim Hosch

    IPC: C22F1/05 ,  C22C21/02 ,  C22C21/08

    Abstract: The aluminum alloy product of an embodiment of the present invention includes a pair of outer regions and an inner region positioned between the outer regions. A first concentration of eutectic forming alloying elements in the inner region is less than a second concentration of eutectic forming alloying elements in each of the outer regions. Further, the aluminum alloy product has a delta r value of 0 to 0.10. The delta r value is calculated as follows: Absolute Value [(r_L+r_LT−2*r_45)/2] and the r_L is an r value in a longitudinal direction of the aluminum alloy product, the r_LT is an r value in a transverse direction of the aluminum alloy product, and the r_45 is an r value in a 45 degree direction of the aluminum alloy product.

    Brazing sheet
    63.
    发明授权
    Brazing sheet 有权

    公开(公告)号：US10532434B2

    公开(公告)日：2020-01-14

    申请号：US14882046

    申请日：2015-10-13

    Applicant: ALCOA INC.

    Inventor： Baolute Ren

    IPC: B23K35/02 ,  B23K35/28 ,  C22C21/02 ,  C22C21/10 ,  C22C21/14 ,  C22C21/16 ,  C22C21/18 ,  B32B15/01

    Abstract: In one embodiment, a brazing sheet comprises: a core layer, a braze liner on the first side of the core layer; and a waterside liner on the second side of the core layer. The core layer is comprised of a 3xxx series aluminum alloy. The waterside liner is an aluminum alloy comprising: 7-20 wt % Zn; up to 0.25 wt % Si; up to 0.1 wt % Cu; up to 0.25 wt % Mn; up to 0.1 wt % Mg; and up to 0.1 wt % Cr. In some embodiments, the brazing sheet has a thickness of 60-180 microns. In some embodiments, the waterside liner comprises 1-15% of the thickness of the brazing sheet.

    2XXX series aluminum lithium alloys having low strength differential
    64.
    发明授权
    2XXX series aluminum lithium alloys having low strength differential 有权

    公开(公告)号：US10435774B2

    公开(公告)日：2019-10-08

    申请号：US14486209

    申请日：2014-09-15

    Applicant: ALCOA INC.

    Inventor： Cagatay Yanar ,  Roberto J. Rioja ,  Jen C. Lin ,  Ralph R. Sawtell

    IPC: C22F1/057 ,  B22D21/00 ,  C22C21/16 ,  C22C21/18

    Abstract: The present application discloses wrought 2xxx Al—Li alloy products that are work insensitive. The wrought aluminum alloy products generally include from about 2.75 wt. % to about 5.0 wt. % Cu, from about 0.2 wt. % to about 0.8 wt. % Mg, where the ratio of copper-to-magnesium ratio (Cu/Mg) in the aluminum alloy is in the range of from about 6.1 to about 17, from about 0.1 wt. % to 1.10 wt. % Li, from about 0.3 wt. % to about 2.0 wt. % Ag, from 0.50 wt. % to about 1.5 wt. % Zn, up to about 1.0 wt. % Mn, the balance being aluminum, optional incidental elements, and impurities. The wrought aluminum alloy products may realize a low strength differential and in a short aging time due to their work insensitive nature.

    Resistance welding fastener, apparatus and methods
    66.
    发明授权
    Resistance welding fastener, apparatus and methods 有权

    公开(公告)号：US10293428B2

    公开(公告)日：2019-05-21

    申请号：US14315698

    申请日：2014-06-26

    Applicant: Alcoa Inc.

    Inventor： Donald J. Spinella ,  Daniel Bergstrom

    IPC: F16B5/04 ,  F16B5/08 ,  B21D39/02 ,  B23K11/00 ,  B23K11/18 ,  B23K11/20 ,  B23K35/02 ,  B23K35/28 ,  F16B37/06

    Abstract: An apparatus and method for fastening dissimilar metals like steel and aluminum utilizes a steel rivet and a spot welding machine. The rivet and metals are stacked and the heat from the welder's electric current softens the lower melting point aluminum allowing the rivet to penetrate the aluminum and weld to the steel layer. The fastener may be used to join stacks with several layers of different materials and may be used to apply a threaded socket or stud made from steel or titanium to an aluminum or magnesium alloy structure. Layers of non-conductive materials like plastic and ceramics may also be affixed to a conductive layer using the fastener made from a compatible material that extends through a pilot hole.

    Swage lock fasteners
    70.
    发明授权
    Swage lock fasteners 有权

    公开(公告)号：US09856898B2

    公开(公告)日：2018-01-02

    申请号：US14697857

    申请日：2015-04-28

    Applicant: Alcoa Inc.

    Inventor： Robert Brown

    IPC: F16B19/05 ,  F16B39/02 ,  F16B37/04

    CPC classification number: F16B19/05 ,  F16B37/044 ,  F16B39/026

    Abstract: A fastener includes a pin member, a swage collar, and an insert. The pin member includes an elongated shank portion, a head, a threaded portion having an external thread and a plurality of lock grooves, and a pull portion. The swage collar includes a shank having a flange and a through bore with a first interior portion extending from a first end of the collar to a stepped portion and forming a first inner wall having a first inner diameter, and a second interior portion extending from the stepped portion to a second end of the collar and forming a second inner wall having a second inner diameter. The insert includes a through bore forming an inner wall that has an internal thread adapted to engage the external thread of the pin member.

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