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:
Dec. 10, 2019
Filed:
Oct. 29, 2012
Applicant:
Edco Usa, Fenton, MO (US);
Inventor:
Edwin L. Johnson, Ballwin, MO (US);
Assignee:
EDCO USA, Fenton, MO (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F04F 5/20 (2006.01); F16K 15/16 (2006.01); A61M 1/00 (2006.01); A61F 9/007 (2006.01);
U.S. Cl.
CPC ...
F04F 5/20 (2013.01); A61M 1/0031 (2013.01); F16K 15/16 (2013.01); A61F 9/007 (2013.01); A61M 1/0076 (2013.01); A61M 2206/22 (2013.01); A61M 2210/0612 (2013.01); Y10T 137/0396 (2015.04);
Abstract
The method and system for attenuating or damping the amplitude of vacuum pressure oscillations in a vacuum system uses a flow-modulated damper to disperse and damp high-amplitude vacuum oscillations of a vacuum generator to a degree where fine vacuum control may be achieved for delicate work such as eye surgery.