Patent References 2409286 3368221 3395406 3718937 Goggle and accessories therefor Ventilated safety goggles Frameless goggle and method of making the same Face mask having an air duct connectable to a goggle Protective goggle Protective goggle and lens with adjustable ventilation Patent #: 5363512 InventorsAssigneeApplicationNo. 262809 filed on 03/05/1999US Classes:2/436, By ventilation of shield2/434Having lens-cover plateExaminersPrimary: Calvert, John J.Assistant: Moran, Katherine Attorney, Agent or FirmInternational ClassA61F 009/02AbstractA goggle has a replaceable lens mounted in a flexible frame containing several large air vents facing forwardly to input external air into the goggle interior. The inlet air vents have converging and angled walls. A first porous foam of particular porosity covers the inlet air vents and is located in an upper air channel with a curved deflector wall to disperse the external air into the interior space. Exit vents located in the bottom of the frame are covered with a second porous foam of different characteristics than the first porous foam. The sides of the goggle frame include curved slots with curved retention bars around which a stretchable headband strap is secured to create uneven load forces on the sides of the goggle frame. | |