Automatic breathing mask release mechanism
Patent 4803980 Issued on February 14, 1989. Estimated Expiration Date: 
October 20, 2006. 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.
October 20, 2006. 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 2867812 3035573 3123831 3473166 3872556 Water activated pressurized gas release device Harness release pin Explosively separable link Release mechanism for retention means for oxygen masks Fluid conductivity sensor InventorsApplicationNo. 06/922075 filed on 10/20/1986US Classes:128/201.23, And nose and mouth also covered128/202.27, Means for quickly connecting or disconnecting apparatus components2/422, With article-attaching means2/6.2, Having article attaching means2/6.3, Having eye shield (e.g., goggles, visor, etc.)24/602Interlocking portion actuated or released responsive to preselected condition (e.g., heat, pressure)ExaminersPrimary: Reynolds, Wm. CarterAttorney, Agent or FirmInternational ClassesA62B 18/08 (20060101)A62B 18/00 (20060101) AbstractApparatus for separating a breathing mask from a helmet automatically upon the occurrence of a predetermined event, the mask having a bayonet connection to a bayonet receiver carried by the helmet. A piston and an explosive cartridge are arranged in an actuator body associated with the bayonet receiver. Upon the occurrence of the predetermined event, as sensed by an activating circuit associated with the receiver, the explosive cartridge generates a shock wave driving the piston against the bayonet in generally right angular relation to the bayonet, thereby forcibly separating the bayonet from the receiver. | |
