Retention for quick donning mask

• US 3,234,940 A
• Filed: 09/17/1962
• Issued: 02/15/1966
• Est. Priority Date: 09/17/1962
• Status: Expired due to Term

• Current Assignee: Figgie International, Inc. (Johnson Controls International plc)
• Original Assignee: William D. Morton Jr
• Inventors: Morton, William D. Jr.
• Application Number:
  US04/224,139
• Time in Patent Office: 1,247 Days
• US Class Current: 128/206.27
• CPC Class Codes: A62B 18/084 Means for fastening gas-masks to heads or helmets

Claims

4. AN INDIVIDUALLY FITTING QUICK DONNING MASK ASSEMBLY FOR BREATHING MASKS ADAPTED TO BE CARRIED IN PART BY THE HEAD AND CHEST WHEN NOT IN USE FOR BREATHING, SAID ASSEMBLY COMPRISING A MASK, A HEAD HARNESS INCLUDING EAR PIECES LOCATED WHEN IN USE ONE ADJACENT EACH EAR, A SUBSTANTIALLY RIGID LOCKING BAR ELEMENT AT LEAST PARTIALLY OVERLYING SAID MASK AND HAVING AT ONE END OF SAID BAR ELEMENT A PAIR OF LEGS STRADDLING SAID MASK, SAID LEGS HAVING ENDS ADJACNET THE MASK AND A FIRST PIVOTAL CONNECTION BETWEEN SAID MASK AND SAID ENDS OF THE LEGS, A ROD IN FIXED TRANSVERSE POSITION ON THE BAR ELEMENT ADJACENT THE OTHER END OF SAID BAR ELEMENT, FREE ENDS OF SAID ROD ON RESPECTIVE SIDES OF THE BAR ELEMENTS SPACED FROM EACH OTHER A DISTANCE GREATER THAN THE DISTANCE BETWEEN SAID ENDS OF THE LEGS AND SUBSTANTIALLY EQUAL TO THE DISTANCE BETWEEN OUTERMOST EDGES OF SAID MASK AND EXTENDING TO LOCATIONS SUBSTANTIALLY IN FORE AND AFT ALIGNMENT WITH RESPECTIVE EAR PIECE, A FLEXIBLE CONNECTION ON EACH SIDE HAVING AT ONE END A REMOVABLE PIVOTAL ATTACHMENT TO THE RESPECTIVE EAR PIECE AND AT THE OTHER END A REMOVABLE PIVOTAL CONNECTION TO THE RESPECTIVE FREE END OF SAID ROD, SAID ROD AND THE FLEXIBLE CONNECTIONS ON EACH SIDE BEING ADAPED TO MAINTAIN THE POSITION OF SAID MASK ON THE CHEST.