Invention Grant
- Patent Title: Releasable lifting link
- Patent Title (中): 可拆卸提升环节
-
Application No.: US12665467Application Date: 2008-05-30
-
Publication No.: US08172289B2Publication Date: 2012-05-08
- Inventor: Rod MacKay Sim
- Applicant: Rod MacKay Sim
- Applicant Address: AU Epping, NSW
- Assignee: Woodstock Percussion Pty Ltd.
- Current Assignee: Woodstock Percussion Pty Ltd.
- Current Assignee Address: AU Epping, NSW
- Agency: Pillsbury Winthrop Shaw Pittman LLP
- Priority: AU2007903323 20070621
- International Application: PCT/AU2008/000757 WO 20080530
- International Announcement: WO2008/154673 WO 20081224
- Main IPC: B66C1/66
- IPC: B66C1/66

Abstract:
A lifting link for anchors embedded in concrete panels is disclosed having a shackle with a recessed cross bridge. A part circular latch rotates within a chamber of a hollow toroidal ring. The chamber has a circular longitudinal axis. The upper portion of the ring is formed into a U-shaped slot through which a handle of the latch rotates. A transverse slot accepts the head of anchor. The shackle bears against the exterior surface of the U-shaped slot. The radius of curvature of the exterior surface has a center which is not coincident with the center of the radius of curvature of the chamber axis. Thus the center of lift of the shackle is worked away from the adjacent surface of the concrete panel, thereby saving the surface from damage during lifting.
Public/Granted literature
- US20100176614A1 RELEASABLE LIFTING LINK Public/Granted day:2010-07-15
Information query