Method and equipment for maintaining ice-free locks

Details Method and equipment for maintaining ice-free locks Method and equipment for maintaining ice-free locks

1992-04-09

1993-08-03

Corbin, David H.

Hydraulic and earth engineering

Fluid control, treatment, or containment

Floatable matter containment

405 85, E02B 504, E02B 1502

Patent

active

052323099

ABSTRACT:
The method and equipment for keeping locks free of ice utilizes the natural energy resources of the waterway itself. Gravity is utilized to conduct warm water from the depths of the upper waterway via a pipe (1) into the lock where it is distributed by a network of pipes punctuated with holes (3) along the lock floor and around the lock gates. Cooled water is discharged through outlets (6) located in the lower lock gates or lock wall just below the level of the upper waterway. Warm water can effectively be brought to the surface by the use of compressed air conducted to the lock floor either through a special network of pipes or through the existing system (3). The piping may be laid on or under the lock floor. Heatloss can be reduced by insulating the sides of the lock and by fitting the lock with a cover the underside of which is coated with a heat-reflecting material. All the necessary equipment for maintaining an ice-free lock can be installed in both already existing and new locks, thus facilitating inland navigation all year round.

REFERENCES:
patent: 90727 (1869-06-01), Chesebrough
patent: 1662113 (1928-03-01), Henry
patent: 3396540 (1968-08-01), Aubert
patent: 3561175 (1971-02-01), Best et al.
patent: 4102134 (1978-07-01), Margen

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