Valved device
Patent 4102342 Issued on July 25, 1978. Estimated Expiration Date: 
December 20, 1996. 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 20, 1996. 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 2493326 2566806 2647515 2691985 3081773 3375828 3407817 3903893 InventorsAssigneeApplicationNo. 05/752076 filed on 12/20/1976US Classes:606/192, Inflatable or expandible by fluid251/1.2, Deformable annulus251/342, Jointed or flexible wall604/920, Balloon inflating or inflation control devices [A61M 25/10E]604/98.02, Compressible bulb604/99.03, One-way valve606/196Nose or throatExaminersPrimary: Michell, Robert W.Assistant: Thaler, Michael H. Attorney, Agent or FirmInternational ClassA61M 25/10 (20060101)Foreign Application Priority Data1975-12-29 JPAbstractA fluid such as air is tightly enclosed in a chamber which serves to plug an organic passage such as a person's nasal cavity. The fluid is supplied into the chamber through a tube so as elastically to expand the chamber and thereafter is discharged through a valve device comprising an opening formed in the tube and a valve member which normally closes the opening but can be rolled up on itself so that the fluid in the chamber can flow out through the opening. | |
