Pier

Details Pier Pier

2007-07-10

2007-07-10

Singh, Sunil (Department: 3673)

Hydraulic and earth engineering

Foundation

Columnar structure

C052S157000, C248S530000

Reexamination Certificate

active

10525898

ABSTRACT:
A pier (10) to be driven into a ground surface includes an auger member (11) having a shaft (12) that is rotated in a first direction to drive the auger member into the ground surface, and a compaction member (16) having a sleeve (17) surrounding a portion of the shaft. The compaction member (16) includes a compaction part (18) attached to and extending laterally outwardly of the sleeve (17). A threaded rod (23) engages the shaft (12) and is rotated to cause the compaction member (16) to move down the shaft (12) and compact the soil around the shaft.

REFERENCES:
patent: 3382937 (1968-05-01), Watts
patent: 4279104 (1981-07-01), Classen
patent: 4833846 (1989-05-01), McFeetors et al.
patent: 5224310 (1993-07-01), Edwards et al.
patent: 5234290 (1993-08-01), Collins
patent: 5295766 (1994-03-01), Tiikkainen
patent: 5881978 (1999-03-01), Rust
patent: 6202368 (2001-03-01), Wallace, III
patent: 032132 (1984-03-01), None

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