Ski goggles

Details Ski goggles Ski goggles

1980-01-29

1981-09-22

Corbin, John K.

Optics: eye examining, vision testing and correcting

Spectacles and eyeglasses

With moisture prevention or absorption

2437, G02C 1108, A61F 902

Patent

active

042906733

ABSTRACT:
Ski goggles comprising a goggle frame, a rubber band and a plastics goggle lens composed of a pair of inner and outer lens plates and having a heat insulating interior space between the lens plates. The inner lens plate is formed with an air port at its one end close to the frame and provided with a water-repellent air-permeable filter opposed to the air port. The filter comprises an air-permeable backing sheet and a layer of ethylene tetrafluoride resin fibers. The filter can be housed in a filter frame with an air flow regulating valve accommodated in the filter frame. The air port may be provided, in place of the filter, with a bellows container or an elastic container serving as a pressure balancing container and disposed in the goggle frame.

REFERENCES:
patent: 2539284 (1951-01-01), Thomas
patent: 3377626 (1966-04-01), Smith

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