Is a
Patent attributes
Current Assignee
Patent Jurisdiction
Patent Number
Date of Patent
July 10, 2007
Patent Application Number
10636080
Date Filed
August 7, 2003
Patent Primary Examiner
Patent abstract
In a bottom valve apparatus in which a flow passage is formed in a bottom piece, a check valve opening and closing the flow passage is provided in one face side of the bottom piece, and a coil spring urging the check valve is fastened by a bolt and a nut which are provided in the bottom piece, a thread direction of the nut or the bolt fastening the coil spring is set to an opposite direction to a winding direction of the coil spring.
Timeline
No Timeline data yet.
Further Resources
No Further Resources data yet.
