Device for varying the length of a strap on a mask for...

Surgery – Respiratory method or device – Including body or head supported means covering user's scalp

Reexamination Certificate

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Details

C128S202270, C002S428000, C002S452000, C024S625000

Reexamination Certificate

active

10934291

ABSTRACT:
A device is disclosed for adjusting the length of a strap on a mask for aquatic activities. The mask comprises a frame for supporting one or more lenses and a plurality of fork-shaped portions extending from either side of the frame. Each portion contains a pivot about which a portion of a strap end is wrapped, the portion having a plurality of stop ribs on one side. The adjustment device comprises a stop lever housed in each portion and a tooth extending from the lever for engaging one of the ribs. The lever has a substantially U-shaped member and a tongue extending from the base of the member such that the tongue is coplanar with and cantilevered in the lever. On a side opposite the tooth, a head extends from the tongue, against which a wedge-shaped portion of a button abuts, sliding with respect to the fork-shaped portion on a plane generally parallel to the U-shaped member. When the button is pressed, the head slides away from the member, lifting the tongue and, thereby, disengaging the tooth from the rib.

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patent: D522562 (2006-06-01), Godoy

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