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. 07, 2010
Filed:
Feb. 27, 2007
Robert M. Smith, Grosse Ile, MI (US);
Roger W. Snyder, New Braunfels, TX (US);
Adrian Kantrowitz, Auburn Hills, MI (US);
Allen B. Kantrowitz, Williamstown, MA (US);
Robert M. Smith, Grosse Ile, MI (US);
Roger W. Snyder, New Braunfels, TX (US);
Adrian Kantrowitz, Auburn Hills, MI (US);
Allen B. Kantrowitz, Williamstown, MA (US);
Abstract
A pump has an elongated shell with a generally elliptical shape, an outer convex surface and an inner concave surface. A peripheral side edge located between the inner and outer surfaces terminates in a bead edge. A flexible airtight membrane has a membrane edge bonded to the outer shell surface adjacent to the bead edge. Preforming the membrane edge looped with a maximum linear span of curvature that is greater than a maximal transverse linear extent of the bead edge, membrane operational wear during inflation and deflation cycles is reduced in the region around the bead edge. A process of forming a blood pump with a membrane preform is also provided.