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. 16, 1997
Filed:
Aug. 10, 1995
Russell L Rogers, Munith, MI (US);
Rodney E Turk, West Bloomfield, MI (US);
Aeroquip Corporation, Maumee, OH (US);
Abstract
An intraluminal graft assembly is provided with a double ball check valve which is normally urged to a closed position by a single compression spring acting on a first ball to urge it into sealing engagement with a valve seat. A spacer between the first ball and the second ball urges the second ball into sealing engagement with a second valve seat when the first valve is in sealing engagement with its associated valve seat. A threaded coupler engages and displaces the second valve axially out of engagement with its associated valve seat carrying with it the spacer and first ball thereby displacing also the first ball out of engagement with its associated valve seat. The double ball check valve permits the introduction of fluid into and removal of fluid from the cavity defined by inner and outer wall members of an intraluminal graft member.