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:
Mar. 27, 1979
Filed:
Jul. 19, 1977
Applicant:
Inventors:
Alfred Bubik, Ravensburg, DE;
Hans-Joachim Schultz, Ravensburg-Oberhofen, DE;
Assignee:
Escher Wyss GmbH, Ravensburg, DE;
Primary Examiner:
Int. Cl.
CPC ...
F16L / ; D21F / ;
U.S. Cl.
CPC ...
137574 ; 162340 ; 162343 ; 162380 ;
Abstract
The damping device has a transition section of increasing cross-sectional area with a perforated plate extending across the downstream end. The perforated plate has ducts which increase in cross-sectional area in a step-wise manner. The transition section may have a parabolic profile, a conical profile, an arcuate profile or may be formed of a sequence of conical parts.