Protective liner for outdoor headgear
Patent 4354284 Issued on October 19, 1982. Estimated Expiration Date: 
January 28, 2001. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.
January 28, 2001. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.Patent References 3462763 3873997 Shock-absorbing system for protective equipment Safety helmets for motorcyclists or the like Patent #: 4038700 InventorApplicationNo. 06/229306 filed on 01/28/1981US Classes:2/413By fluid-containing cushionExaminersPrimary: Nerbun, PeterAttorney, Agent or FirmInternational ClassesA42B 3/04 (20060101)A42B 1/08 (20060101) A42B 1/04 (20060101) A42B 3/12 (20060101) AbstractAn energy-absorbing liner for use in conventional outdoor headgear to provide protection in the event of an impact directed against the wearer's head. A plurality of fluid-filled cushions having walls of resilient material are joined together into a regular and spaced relationship. The connected cushions are mounted over the inside of the outdoor headgear so as to contact and cushion the wearer's head upon impact. In an preferred embodiment, the cushions have two chambers separated by a common wall and are connected by means of flanges along the perimeters of the cushions. The cushions may be interconnected by fluid carrying passages of predetermined cross section to facilitate dispersing of impact forces laterally and may be arranged from a central round or square configuration. | |
