Protective helmet with self-contained air pump
Patent 5083320 Issued on January 28, 1992. Estimated Expiration Date: 
December 24, 2010. 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.
December 24, 2010. 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 ReferencesInventorAssigneeApplicationNo. 632900 filed on 12/24/1990US Classes:2/413By fluid-containing cushionExaminersPrimary: Schroeder, Werner H.Assistant: Neas, Michael A. Attorney, Agent or FirmForeign Patent References
International ClassA42B 003/12AbstractA protective helmet having an outer shell and an inner liner is disclosed. The liner includes a plurality of air compartments interconnected by a number of air channels. A self-contained, tactile actuatable air pump is mounted to the helmet so as to be carried thereby even when the helmet is in use.Other References
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