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. 06, 2011
Filed:
Apr. 11, 2007
Carr Lane Quackenbush, Prairie Grove, IL (US);
Michael Dettling, Woodstock, IL (US);
Mark A. Luzbetak, Kildeer, IL (US);
Brian H. Silver, Cary, IL (US);
Thomas A. Sutrina, Rockford, IL (US);
Peter E. Hartmann, Gooseberry Hill, AU;
Leon R. Mitoulas, Cham, CH;
Donna T. Geddes, Dianella, AU;
Jacqueline C. Kent, Nedlands, AU;
Carr Lane Quackenbush, Prairie Grove, IL (US);
Michael Dettling, Woodstock, IL (US);
Mark A. Luzbetak, Kildeer, IL (US);
Brian H. Silver, Cary, IL (US);
Thomas A. Sutrina, Rockford, IL (US);
Peter E. Hartmann, Gooseberry Hill, AU;
Leon R. Mitoulas, Cham, CH;
Donna T. Geddes, Dianella, AU;
Jacqueline C. Kent, Nedlands, AU;
Medela Holding AG, Baar, CH;
Abstract
A breastpump, manual or motorized, that includes a mechanism to regulate pressure change, e.g., vacuum, within a breastshield chamber, including in some cases to a maintained minimum pressure that is less than ambient (atmosphere). The pressure regulator provides control for varying negative pressure between a minimum value and a maximum value (and values in between), or to achieve a specific actually measured negative pressure value within a breastshield.