RESPIRATOR FILTER INTERFACE Russian patent published in 2018 - IPC A62B23/02 

FIELD: personal usage items.

SUBSTANCE: respirator filter connection mechanism comprises a first attachment element, the first attachment element associated with a respirator mask; a second attachment element, the second attachment element associated with a filter; openings provided through the first and second attachment elements and configured to be aligned with an inlet or discharge port of the mask and an inlet or discharge port of the filter; one of the first and second attachment elements including a spring element located proximate to a corresponding opening, while another of the first and second attachment elements includes an attachment shelf located proximate to a corresponding opening; the spring element configured to be linearly advanced into initial engagement with the attachment shelf until the spring element and attachment shelf couple to one another in an intermediate loaded position; and at least a fastening shelf having a cam feature that slidably engages the spring element and pulls the spring element from the intermediate loaded position into a locked and sealed position, when least one of the attachment shelf and spring element is rotated relative to the other of the attachment shelf and spring element.

EFFECT: respirator filter connection mechanism is disclosed.

15 cl, 17 dwg