Is a
Patent attributes
Patent Applicant
Current Assignee
Patent Jurisdiction
Patent Number
Patent Inventor Names
Kevin Edward Roach0
Martin Lei0
Michael Anthony Ziska0
Date of Patent
January 12, 2021
0Patent Application Number
164132700
Date Filed
May 15, 2019
0Patent Citations Received
Patent Primary Examiner
Patent abstract
A dual purpose valve assembly may comprise a conduit, a first valve, and a second valve. The first valve may comprise a vacuum breaker valve. The second valve may comprise a check valve. A drain system may comprise a supply tube, a drain tube, and a dual purpose valve disposed between the supply tube and the drain tube. The drain system may allow fluid to drain based on gravity alone, and the dual purpose valve assembly may operate based on gravity alone.
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