Modular tubular helical piering system

Details Modular tubular helical piering system Modular tubular helical piering system

2006-05-02

2006-05-02

Lagman, Frederick L. (Department: 3673)

Hydraulic and earth engineering

Foundation

Columnar structure

C405S253000, C405S251000, C405S249000

Reexamination Certificate

active

07037045

ABSTRACT:
A modular helical piering system employs a series of tubular shafts having a rectangular cross-section that can be secured to one another by means of couplers and removable pins inserted through holes in the shafts. A number of helical blades can also be removably secured to the shafts at desired locations by means of pins.

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Brochure of DYWIDAG-Systems International, Apr. 1993.

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