Valve
Patent 6035896 Issued on March 14, 2000. Estimated Expiration Date: 
March 2, 2018. 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.
March 2, 2018. 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 3113586 3861416 Filler plug Tubular safety element for closing a flow line Check valve Fuel interception valve Patent #: 4905726 InventorAssigneeApplicationNo. 029433 filed on 03/02/1998US Classes:137/849, Multiple slit137/512.4Integral resilient member forms plural valvesExaminersPrimary: Ferensic, Denise L.Assistant: Kim, Joanne Y. Attorney, Agent or FirmInternational ClassF16K 015/14Foreign Application Priority Data1995-09-01 CHAbstractThe invention concerns a valve comprising a circular frame (1) whose inner edge narrows to form flexible areas (3) connecting the frame to triangular vanes (2). The areas (3) form articulations about which the vanes pivot when the valve opens or closes. In the closed position, the vanes bear against one another and the assembly adopts a pyramidal position. The valve can be produced by the injection of plastics. The entire valve may be produced in a single part. | |
