| Patent application number | Description | Published |
|---|
| 20100154804 | EXPANDABLE FACE MASK WITH ENGAGEABLE STIFFENING ELEMENT - Herein are disclosed face masks that are provided in a generally flat configuration and are capable of being expanded to a cup-shaped configuration. Such masks comprise at least one porous layer that comprises at least one pleat and that is capable of being expanded by at least partially unfolding the at least one pleat. The mask further comprises at least one stiffening element that comprises at least one engaging feature. Upon expanding the porous layer, the engaging feature engages with the porous layer so as to enhance the ability of the mask to maintain the expanded, cup-shaped configuration. | 06-24-2010 |
| 20100154805 | FLAT FOLD RESPIRATOR HAVING FLANGES DISPOSED ON THE MASK BODY - A flat-fold, filtering, face-piece respirator | 06-24-2010 |
| 20100154806 | EXPANDABLE FACE MASK WITH REINFORCING NETTING - Herein are disclosed face masks that are provided in a generally flat configuration and are capable of being expanded to a cup-shaped configuration. Such masks comprise at least one porous layer that comprises at least one pleat and that is capable of being expanded by at least partially unfolding the at least one pleat. The mask further comprises reinforcing netting laminated to the outer surface of the porous layer. | 06-24-2010 |
| 20100269463 | JOINED FILTER MEDIA PLEAT PACKS - A joined filter media pleat pack assembly. | 10-28-2010 |
| 20110067700 | FLAT-FOLD FILTERING FACE-PIECE RESPIRATOR HAVING STRUCTURAL WELD PATTERN - A flat-fold filtering face piece respirator | 03-24-2011 |
| 20110067701 | HORIZONTAL FLAT-FOLD FILTERING FACE-PIECE RESPIRATOR HAVING INDICIA OF SYMMETRY - A horizontal flat-fold, filtering face-piece respirator | 03-24-2011 |
| 20110094515 | FILTERING FACE-PIECE RESPIRATOR HAVING PARALLEL LINE WELD PATTERN IN MASK BODY - A respirator | 04-28-2011 |
| 20110138760 | SELF-SUPPORTING PLEATED FILTER MEDIA - The present invention is a filter that includes a length of filter media and a continuous, substantially nonlinear adhesive strand. The filter media has a front face and a rear face. The filter media has a plurality of pleats defined by a plurality of fold lines, each fold line being intermediate oppositely sloping first and second wall surfaces. The plurality of fold lines comprise a first plurality of pleat tips and a second plurality of pleat valleys. The adhesive strand is provided on the front face of the filter media in discontinuous contact with the filter media. The adhesive strand contacts the filter media at a pleat tip and contacts the filter media at a portion of a first wall surface and contacts the filter media at a portion of a second wall surface. | 06-16-2011 |
