Invention Grant
US07992281B2 Method and apparatus for attaching a lifting lug to a concrete product
有权
将吊耳连接到混凝土制品的方法和装置
- Patent Title: Method and apparatus for attaching a lifting lug to a concrete product
- Patent Title (中): 将吊耳连接到混凝土制品的方法和装置
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Application No.: US11822852Application Date: 2007-07-10
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Publication No.: US07992281B2Publication Date: 2011-08-09
- Inventor: Lassi Järvinen , Aimo Seppänen
- Applicant: Lassi Järvinen , Aimo Seppänen
- Applicant Address: FI Toijala
- Assignee: Elematic Group OY
- Current Assignee: Elematic Group OY
- Current Assignee Address: FI Toijala
- Agency: Buchanan Ingersoll & Rooney PC
- Priority: FI20060678 20060712
- Main IPC: B21B1/46
- IPC: B21B1/46 ; E04B1/21
Abstract:
Method and apparatus for attaching a part forming a lifting lug to fresh, prestressed hollow-core slab or massive slab, wherein the part forming the lifting lug is embedded by vibrating at least partly through the upper surface of the slab, after which the part forming the lifting lug is turned by vibrating, so that the lower parts of the lifting lug set themselves under the reinforcing strands of the slab.
Public/Granted literature
- US20080010926A1 Method and apparatus for attaching a lifting lug to a concrete product Public/Granted day:2008-01-17
Information query
IPC分类:
