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:
Sep. 15, 1987
Filed:
Jun. 06, 1986
Herbert K Paetzel, Nettetal-Hinsbeck, DE;
Masoneilan International, Inc., Dallas, TX (US);
Abstract
A low-noise control valve in which a noise-dampening element (9) is arranged inside of the valve housing (1) in the passageway of the medium. A built-in element, in which lamellas touching one another are arranged over the entire cross section of passage parallel to each other and parallel to the direction of flow serves as noise-dampening element. These lamellas exhibit a linear corrugation, with the directions of the corrugations proceeding obliquely with respect to the direction of flow and the directions of the corrugations of two adjacent lamellas at a time intersecting each other. Favorable sound level reductions are achieved in small installation dimensions. In upper valves, the built-in element can be arranged at the valve cone. In rotary cone valves, it can be designed as a valve seat.