Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Johnson Products Inc
Original Assignee
Johnson Products Inc
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Filing date
Publication date
Application filed by Johnson Products IncfiledCriticalJohnson Products Inc
Application grantedgrantedCritical
Publication of FR2089272A5publicationCriticalpatent/FR2089272A5/fr
F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
F01L—CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
F01L3/00—Lift-valve, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces; Parts or accessories thereof
F01L3/02—Selecting particular materials for valve-members or valve-seats; Valve-members or valve-seats composed of two or more materials