Abstract: A reusable face mask is disclosed that filters particulate matter and noxious and poisonous gasses from breathed air. The face mask has a mask shell that is thermoformed of cross-linked, closed cell foam sheet that is impermeable to air while having good shape retention and elasticity. The mask shell is perforated with multiple holes in its central area to permit inhaled air to pass through the otherwise impermeable shell. The mask shell is stiff enough to support filter mounting apparatus that has an internal potion and an external portion that both cover the multiple holes. Filters made from filter sheet material and having a self-adhesive strip around their periphery are removably attached to the mounting apparatus to filter breathed air. Neither the mounting apparatus nor the filters ever touch the face of the wearer of the face mask. By using two filters, selective combinations of noxious and poisonous gasses, dusts and mists may be filtered from breathed air.

Abstract: A face mask is disclosed that can be reusable or disposable, and which filters particulate matter and/or noxious or poisonous gasses from breathed air. The mask has a shell that is formed of polymeric closed cell foam that is impermeable to air while having good shape retention that enables the edge of the mask shell to conform and seal to the face of a wearer around their nose and mouth. The foam mask shell has one or more holes through the central portion thereof and a filter is mounted to cover said hole(s) to thereby filter all inhaled air passing through said holes. A one-way valve is mounted through the wall of the mask shell to exhaust exhaled air.

Abstract: What is disclosed is a face mask formed from a porous sheet made of a plurality of fibers. The mask is formed into a generally cup shape shell that fits over the mouth and nose of the wearer and is held thereto by elastic straps attached to the mask that pass behind the head when the mask is worn. The mask filters breathed air passing through the mask. The border of the mask is more tightly compacted during forming. The mask of the present invention features rearwardly projecting portions located on either side of the nose bridge area of the mask parallel to and close to the border of the mask. The peak of the rearwardly projecting portions extend from the face mask in the direction of the face of the wearer of the mask to conform the portion of the mask close to its border to the contours of the face of the wearer between the bridge of the wearer's nose and the upper areas of their cheekbones.

Abstract: An assembly for the production of covers, or toppers, for the truck beds of various sizes and makes of pick-up trucks comprising a preformed shell which serves as a base or body portion for the finished cover, and a support member for the preformed shell which provides means for trimming the shell to a predetermined length and enables the shell to be maintained in a fixed position during fabrication of the completed cover. The preformed shell has an initial length greater than that of the finished cover, and, together with the support member, provides a simple, effective and efficient means for making covers for at least eleven different models and makes of pick-up trucks.

Abstract: A container formed from a flexible sheet of resilient thermoplastic resin having a body section and a cover section which are hinged together, each having side and end walls which telescope together, the holding of the hinged sections together being by means of undercuts in the corners of the meeting side and end walls of the sections.