Personal protective equipment strap retaining devices
Assignee3M Innovative Properties Company
InventorsThomas J. Brace, William A. Mittelstadt, David M. Blomberg
Life of this patent
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Abstract
A strap retaining device having an actuation arm that may engage a retaining tab is provided. In an exemplary embodiment, the strap retaining device includes a frame, a retention tab pivotally connected to the frame, and an actuation arm connected to the frame and having a first actuation element movable towards the retention tab from a neutral position to an actuated. The first actuation ramp is movable in a first plane to cause the retention tab to move in a second plane that is perpendicular to the first plane.
Claims26
A strap retaining device for a personal protection device, comprising:
- a frame comprising a first frame portion and a second frame portion;
- a retention tab pivotally connected to the frame;
- and
- a first actuation arm connected to the frame extending between the first and second frame portions and having ends connected to the first and second frame portions, the first actuation arm comprising a first actuation element movable towards the retention tab;
- wherein the first actuation element is movable in a first plane from a neutral position to an actuated position in which the first actuation element causes the retention tab to move in a second plane that is substantially perpendicular to the first plane.
A harness assembly for a respirator, comprising:
- first and second strap retaining devices each including a frame comprising a first frame portion and a second frame portion, a retention tab pivotally connected to the frame, a strap channel and a first actuation arm connected to the frame extending between the first and second frame portions and having ends connected to the first and second frame portions, and comprising a first actuation ramp movable in a first plane from a neutral position to an actuated position in which the first actuation ramp contacts a surface of the retention tab and causes the retention tab to move in a second plane that is perpendicular to the first plane;
- a first strap positioned in a strap channel of the first strap retainer about a portion of the frame of the first strap retainer;
- and
- a second strap positioned in a strap channel of the second strap retainer about a portion of the frame of the second strap retaining devices;
- wherein the first strap retaining device comprises a first attachment element and the second strap retaining device comprises a second attachment element and the first attachment element is attachable to the second attachment element.
Dependencies are inferred from the claim text.