Invention Grant
- Patent Title: Lifting and leveling assembly for precast concrete slabs and method
- Patent Title (中): 预制混凝土板起重平整装配及方法
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Application No.: US14595721Application Date: 2015-01-13
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Publication No.: US09347232B1Publication Date: 2016-05-24
- Inventor: Sidney E. Francies, III
- Applicant: Sidney E. Francies, III
- Agency: McGarry Bair PC
- Main IPC: E02D35/00
- IPC: E02D35/00 ; E04G21/14 ; E04B5/04 ; E04B1/35 ; B66F3/08

Abstract:
A lifting and leveling assembly configured to be embedded in a precast concrete slab for lifting a leveling a precast concrete slab includes a base plate, a threaded sleeve, an anchor plate, a thread protecting sleeve, a threaded lifting bolt and an end cap. Rotating the threaded lifting bolt in a first direction positions a bolt head on the threaded lifting bolt above a top surface of a precast concrete slab to accommodate the attachment of a lifting device. Rotating the threaded lifting bolt in a second direction positions the bolt head beneath the top surface of the concrete slab and causes the threaded shaft to exert a force on the base plate to level the precast concrete slab.
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