Method and apparatus for attaching a lifting lug to a...

Details Method and apparatus for attaching a lifting lug to a... Method and apparatus for attaching a lifting lug to a...

2011-08-09

2011-08-09

Hong, John C (Department: 3726)

Metal working

Method of mechanical manufacture

Combined manufacture including applying or shaping of fluent...

C052S333000

Reexamination Certificate

active

07992281

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.

REFERENCES:
patent: 3219139 (1983-11-01), None
patent: 168695 (1993-03-01), None
patent: 1344877 (2003-09-01), None
patent: 1555100 (2005-07-01), None
patent: 2784703 (2000-04-01), None
patent: WO 01/21905 (2001-03-01), None
Finnish Office Action dated Apr. 10, 2007.
Finnish Office Action dated Mar. 3, 2010.

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