Full face respirator mask
First Claim
1. An integrally molded lens member for use with a flexible facepiece of a full face respiratory mask, the lens member being rigid relative to the flexible facepiece, the integrally molded lens member including a pair of cheek portions and with each cheek portion formed with an aperture and structure around the aperture to mate with and hold either a filter cartridge or a plug member to close off the aperture, and a central portion integrally molded as part of the lens member having a first integrally molded portion forming an exhalation valve, and a second integrally molded portion forming a connector to receive either an outside supply of air when the cheek apertures each hold a plug member to close off the cheek apertures or a plug member to close off the connector when the cheek aperture hold the filter cartridges.
1 Assignment
0 Petitions
Accused Products
Abstract
A full face respirator mask includes a rigid plastic integrally molded lens member that has a transparent viewing portion and a central integrally molded port portion. The central port portion is disposed beneath the viewing portion when the mask is viewed from a front elevation. An integrally molded exhalation port is disposed in the central port portion of the rigid plastic lens. First and second air intake ports are disposed in the integrally molded lens member to either side of the central port portion of the rigid plastic lens member. Each air intake port is adapted to support either a plug member to close off the air intake ports or a filter cartridge to filter air passing through the air intake port. An integrally molded portion forming a connector is located within the central port portion of the integrally molded lens member to receive either an outside supply of air when the air intake ports each hold a plug member to close off the air intake ports or a plug member to close off the connector when the air intake ports support the filter cartridges. A face seal is attached to the lens member at an outside edge of the lens member and is adapted to mate with the wearer'"'"'s face, and the face seal is attached by overmolding the face seal around the outside edge of the lens member to form an adhesive bond between the face seal and the lens member.
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Citations
51 Claims
- 1. An integrally molded lens member for use with a flexible facepiece of a full face respiratory mask, the lens member being rigid relative to the flexible facepiece, the integrally molded lens member including a pair of cheek portions and with each cheek portion formed with an aperture and structure around the aperture to mate with and hold either a filter cartridge or a plug member to close off the aperture, and a central portion integrally molded as part of the lens member having a first integrally molded portion forming an exhalation valve, and a second integrally molded portion forming a connector to receive either an outside supply of air when the cheek apertures each hold a plug member to close off the cheek apertures or a plug member to close off the connector when the cheek aperture hold the filter cartridges.
- 12. A full face respirator mask comprising a flexible facepiece adapted to mate with a wearer'"'"'s face and including a molded lens member, the lens member being rigid relative to the flexible facepiece, the mask including a lens member having a pair of cheek portions and with each cheek portion formed with an aperture and structure around the aperture to mate with and hold either a filter cartridge or a plug member to close off the aperture, a central portion of the lens member having a first portion forming an exhalation valve, and a second portion forming a connector to receive either an outside supply of air when the cheek apertures each hold a plug member to close off the cheek apertures or a plug member to close off the connector when the cheek aperture hold the filter cartridges, the flexible facepiece attached to the lens member at an outside edge of the lens member and adapted to mate with a wearer'"'"'s face, and wherein the flexible facepiece is attached to the lens member by overmolding the flexible facepiece around an outside edge of the lens member to form an adhesive bond between the flexible facepiece and the lens member, and a scratch resistant material applied to the lens member prior to the overmolding of the flexible facepiece to the outside edge of the lens member and with the scratch resistant material being melamine based to allow for the overmolding and provide for the adhesion between the flexible facepiece and the lens member.
- 20. A full face respirator mask that includes a rigid plastic integrally molded lens member that has a transparent viewing portion and a central integrally molded port portion, the central port portion being disposed beneath the viewing portion when the mask is viewed from a front elevation, an integrally molded exhalation port disposed in the central port portion of the rigid plastic lens, first and second air intake ports disposed in the integrally molded lens member to either side of the central port portion of the rigid plastic lens member and each air intake port adapted to support either a plug member to close off the air intake ports or a filter cartridge to filter air passing through the air intake port, an integrally molded portion forming a connector located within the central port portion of the integrally molded lens member to receive either an outside supply of air when the air intake ports each hold a plug member to close off the air intake ports or a plug member to close off the connector when the air intake ports support the filter cartridges, and a face seal disposed on the full face respirator mask to seal the respirator over a wearer'"'"'s eyes, nose, and mouth.
- 31. A full face respirator mask that includes a rigid plastic lens member that has a transparent viewing portion and a central port portion, the central port portion being disposed beneath the viewing portion when the mask is viewed from a front elevation, an exhalation port disposed in the central port portion of the rigid plastic lens, first and second air intake ports disposed in the lens member to either side of the central port portion of the rigid plastic lens member and each air intake port adapted to support either a plug member to close off the air intake ports or a filter cartridge to filter air passing through the air intake port, a connector located within the central port portion of the lens member to receive either an outside supply of air when the air intake ports each hold a plug member to close off the air intake ports or a plug member to close off the connector when the air intake ports support the filter cartridges, and a face seal disposed on the full face respirator mask to seal the respirator over a wearer'"'"'s eyes, nose, and mouth wherein the face seal is attached to the lens member at an outside edge of the lens member and is adapted to mate with the wearer'"'"'s face, and wherein the face seal is attached by overmolding the face seal around the outside edge of the lens member to form an adhesive bond between the face seal and the lens member.
- 41. An integrally molded lens member for use with a flexible facepiece of a full face respiratory mask, the lens member being rigid relative to the flexible facepiece, the integrally molded lens member including a pair of cheek portions and with each cheek portion formed with an aperture and structure around the aperture to mate with and hold a filter cartridge, and a central portion integrally molded as part of the lens member having a first integrally molded portion forming an exhalation valve.
Specification