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. 21, 1999
Filed:
Aug. 14, 1996
Applicant:
Inventors:
Jay Gregory Johnson, Maple Plain, MN (US);
Jia Hu, New Brighton, MN (US);
Assignee:
SIMS Deltec, Inc., St. Paul, MN (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F04B / ;
U.S. Cl.
CPC ...
417474 ; 604153 ;
Abstract
The present invention describes a free-flow protection device. A pump and tube are provided where the pump affects the flow of fluid through the tube. The device occludes the tube when the tube becomes disengaged from the pump. The device may be internal or external to the tube. The tube may attach to the pump with a pressure plate.