Fluid vacuum release for ice cutting systems

Details Fluid vacuum release for ice cutting systems Fluid vacuum release for ice cutting systems

1975-06-23

1977-02-01

Blix, Trygve M.

Ships

Ice breakers

Cutters

299 24, B63B 3512

Patent

active

040056660

ABSTRACT:
There is described a comminuting type ice cutter for use with vessels operating in ice-covered waters. Fluid, such as water or air, is injected into the region of each cutter edge to break the partial vacuum which is created at the cleavage interface of the ice fragments as they are broken away from the body of ice by the cutting or wedging action of the cutters. The fluid is introduced by passages extending through the cutter blades and opening adjacent the cutter edges. Alternatively the fluid may be forced into the cutting region by separate jets which may be either stationary or may rotate with the blades.

REFERENCES:
patent: 3335686 (1967-08-01), Pontbriand et al.
patent: 3672175 (1972-06-01), Mason
patent: 3678873 (1972-07-01), Bennett
patent: 3693360 (1972-09-01), Holder

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