The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jul. 27, 1976
Filed:
Apr. 04, 1975
Hans D Baumann, Manville, RI (US);
Masoneilan International, Inc., Norwood, MA (US);
Abstract
A variable resistance type control valve throttling trim having high resistance, fluid energy absorbing passages formed and controlled between the intersection of a cylindrical valve plug slidable co-operating with a cylindrical valve seatring and wherein the number, length, area ratio and specific fluid resistance are a function of the engaged length of the cylindrical plug portion in respect to the seatring bore and wherein the fluid energy absorbing passages consist of a pattern of slots and grooves radially inwardly penetrating the cylindrical wall of said valve plug and/or radially outwardly penetrating the cylindrical inside wall of said seatring bore.