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:
Nov. 14, 1978
Filed:
Jul. 26, 1976
Applicant:
Inventor:
Hans D Baumann, Woonsocket, RI (US);
Assignee:
Masoneilan International, Inc., Norwood, MA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F16K / ; F16K / ;
U.S. Cl.
CPC ...
1376253 ; 13762538 ; 13762537 ; 138 42 ; 251127 ;
Abstract
Fluid flow controlling apparatus comprising a variable area, variable resistance, axial-flowing, perforated plate or ring stack and solid plug or ring throttling apparatus. In combination with a variable resistance throttling device, a fixed fluid resistance element comprising a stack of perforated plates or rings.