Invention Grant
- Patent Title: Butterfly valve assembly
- Patent Title (中): 蝶阀总成
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Application No.: US15075010Application Date: 2016-03-18
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Publication No.: US09574669B2Publication Date: 2017-02-21
- Inventor: Michael James Lurk , Thomas Linhorst
- Applicant: Bray International, Inc.
- Applicant Address: US TX Houston
- Assignee: Bray International, Inc.
- Current Assignee: Bray International, Inc.
- Current Assignee Address: US TX Houston
- Agency: Oathout Law Firm
- Agent Mark A. Oathout
- Main IPC: F16K1/22
- IPC: F16K1/22

Abstract:
A valve assembly has a valve body, a lower bushing, a valve seat, a lower stem, a disc, and an upper stem. The valve body defines a bi-directional flow path therethrough; wherein the valve body has an inner surface, two flange faces, and further defines an upper orifice and a hemispherical lower orifice along an axis perpendicular to the flow path. The lower bushing is housed in the lower orifice, and the lower bushing is configured to tilt within the lower orifice away from the axis. The lower bushing defines a bushing cavity. The valve seat has an outer surface configured to encapsulate the inner surface and the two flange faces of the valve body. The lower stem is housed in the bushing cavity, and the lower stem is configured for tilting away from and towards the axis perpendicular to the flow path. The disc has a seating surface on at outer circumference, defines a stem receptacle to house the lower stem, and the stem receptacle extends less than a diameter of the disc.
Public/Granted literature
- US20160201807A1 Butterfly Valve Assembly Public/Granted day:2016-07-14
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