Ground freezing installation accommodating thermal...

Details Ground freezing installation accommodating thermal... Ground freezing installation accommodating thermal...

2006-05-16

2008-10-21

Mayo, Tara L. (Department: 3671)

Hydraulic and earth engineering

Temperature modification or control of earthen formation

C165S045000, C062S160000

Reexamination Certificate

active

07438501

ABSTRACT:
A ground freezing system includes a metal feed pipe for delivering refrigerant to the lower end of a freeze pipe installed in a bore in the ground. The feed pipe is supported on a compression spring which accommodates thermal contraction of the feed pipe while maintaining support of its weight.

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