VALVE DEVICE,PARTICULARLY FOR BREATHING APPARATUS

• US 3,460,558 A
• Filed: 02/03/1966
• Issued: 08/12/1969
• Est. Priority Date: 07/04/1961
• Status: Expired due to Term

• Current Assignee: Dag Olof Alfred Johannisson
• Original Assignee: Dag Olof Alfred Johannisson
• Inventors: JOHANNISSON DAG OLOF ALFRED
• Application Number:
  US04/524,796
• Time in Patent Office: 1,286 Days
• US Class Current: 137/102
• CPC Class Codes: A61M 16/208 Non-controlled one-way valves, e.g. exhalation, check, pop-off non-rebreathing valves
• CPC Class Codes: A62B 18/10 Valves
• CPC Class Codes: Y10T 137/2544 Supply and exhaust type
• CPC Class Codes: Y10T 137/7891 Flap or reed

Claims