公开(公告)号：US3820729A

公开(公告)日：1974-06-28

申请号：US29451672

申请日：1972-10-30

Applicant: PRICE BROTHERS CO

Inventor： MARCUM A ,  SPRINGER L ,  MULLENDORE D

IPC: B21F17/00 ,  B28B21/64 ,  H02P5/50 ,  B65H81/06

CPC classification number: H02P5/50 ,  B21F17/00 ,  B28B21/64

Abstract: Apparatus for electronically monitoring the rotational position of a concrete core as it is rotated about its axis during a prestressing wire wrapping operation and simultaneous monitoring the position of a wire feed carriage moving axially of the pipe to provide signals for controlling the movement of a pantograph type wire guide which oscillates the wire guide with a straight line movement parallel to the axis of the core as the wire feed carriage moves along the bevel end of the core.

公开(公告)号：US3250654A

公开(公告)日：1966-05-10

申请号：US39198764

申请日：1964-08-25

Applicant: DAVID RUBENSTEIN

Inventor： DAVID RUBENSTEIN

IPC: B28B21/64

CPC classification number: B28B21/64

公开(公告)号：US2191025A

公开(公告)日：1940-02-20

申请号：US7669336

申请日：1936-04-27

Applicant: MITCHELL ROBERT W

Inventor： MITCHELL ROBERT W

IPC: B28B21/64

CPC classification number: B28B21/64 ,  Y10S29/042 ,  Y10T29/49874 ,  Y10T29/49881

公开(公告)号：US2166847A

公开(公告)日：1939-07-18

申请号：US16586337

申请日：1937-09-27

Applicant: MILLER JOSEPH E ,  OSWEILER PAUL L

Inventor： MILLER JOSEPH E ,  OSWEILER PAUL L

IPC: B28B21/64 ,  B65H75/28

CPC classification number: B28B21/64 ,  B65H75/28 ,  Y10T24/1492 ,  Y10T24/39 ,  Y10T24/3916 ,  Y10T24/3918 ,  Y10T24/44974 ,  Y10T403/5793

公开(公告)号：US3964522A

公开(公告)日：1976-06-22

申请号：US181824

申请日：1971-09-20

Applicant: Paul W. Kao ,  Homer C. Lamborn

Inventor： Paul W. Kao ,  Homer C. Lamborn

IPC: B28B21/60 ,  B28B21/62 ,  B28B21/64 ,  B65H1/00

CPC classification number: B28B21/64

Abstract: In the manufacture of prestressed concrete pipe, wire is wound under tension around the concrete body of the pipe and secured thereto. In accomplishing this the concrete pipe is mounted on a turntable for rotaton about the longitudinal axis of the pipe and wire under tension is wrapped thereon in a helical fashion from one end to the other.

Abstract translation: 在预应力混凝土管的制造中，钢丝缠绕在管子的混凝土体周围，并固定在其上。 在实现这一点时，将混凝土管安装在用于围绕管纵向轴线旋转的转台上，并且张力下的线以一端螺旋的方式包裹在另一端上。

公开(公告)号：US3177902A

公开(公告)日：1965-04-13

申请号：US70205057

申请日：1957-12-11

Applicant: DAVID RUBENSTEIN

Inventor： DAVID RUBENSTEIN

IPC: B28B21/64 ,  B28B23/04 ,  B29C41/04 ,  B29C41/08 ,  B29C53/80 ,  B29C63/00 ,  B29C63/32 ,  B29C70/32 ,  F16L9/08 ,  F16L25/00 ,  F16L58/02

CPC classification number: F16L58/02 ,  B28B21/64 ,  B28B23/046 ,  B29C41/042 ,  B29C41/085 ,  B29C53/805 ,  B29C63/0021 ,  B29C63/32 ,  B29C70/326 ,  B29K2105/12 ,  F16L9/08 ,  F16L25/0027 ,  Y10S52/07

公开(公告)号：US3052266A

公开(公告)日：1962-09-04

申请号：US73140258

申请日：1958-04-28

Applicant: AMERICAN PIPE & CONSTR CO

Inventor： HUCK GEORGE E

IPC: B21F17/00 ,  B28B21/64

CPC classification number: B21F17/00 ,  B28B21/64

公开(公告)号：US2011463A

公开(公告)日：1935-08-13

申请号：US69734533

申请日：1933-11-09

Applicant: GUIDO VIANINI

Inventor： GUIDO VIANINI

IPC: B28B19/00 ,  B28B21/62 ,  B28B21/64 ,  B28B21/94

CPC classification number: B28B21/62 ,  B28B19/0038 ,  B28B21/64 ,  B28B21/94 ,  Y10T29/49874

公开(公告)号：US1402515A

公开(公告)日：1922-01-03

申请号：US32984319

申请日：1919-10-10

Applicant: ALFRED KIELLAND

Inventor： ALFRED KIELLAND

IPC: B28B21/64

CPC classification number: B28B21/64

公开(公告)号：US20190049057A1

公开(公告)日：2019-02-14

申请号：US15672422

申请日：2017-08-09

Applicant: Milliken Infrastructure Solutions, LLC

Inventor： Lawrence Cercone ,  Daniel J. Bomar, SR.

IPC: F16L55/168 ,  F16L55/175 ,  F16L58/10 ,  F16L9/12 ,  F16L9/16 ,  B28B21/64

CPC classification number: F16L55/1686 ,  B28B21/64 ,  B29C63/0069 ,  B29C63/14 ,  B29C70/30 ,  B29C70/74 ,  B29C73/10 ,  B29K2023/00 ,  B29K2105/0845 ,  B29K2301/12 ,  B29K2623/06 ,  F16L9/12 ,  F16L9/16 ,  F16L55/1683 ,  F16L55/175 ,  F16L57/02 ,  F16L58/1063 ,  F16L58/181

Abstract: A strengthened polyethylene tubular member, where the polyethylene tubular member has an outer surface, a circumference, a wall thickness, an area to be strengthened, and the outer surface of the polyethylene tubular member contains polyethylene. The strengthened polyethylene tubular member contains a fabric layer wrapped around the circumference of the tubular member at least two full rotations and covering the area to be strengthened. The fabric layer contains a plurality of interwoven tape elements with a base layer of a strain oriented olefin polymer disposed between covering layers of a heat fusible olefin polymer. The tape elements within the fabric layer are bonded together and the tape elements adjacent the tubular member are bonded to the tubular member.