Patent ID: 9377017
Filing Date: 2016-06-28
CPC Classification: F04B,H02K,Y10T

Claim Text:
1. A pump comprising: a first pump housing member including a chamber with an inner wall and an open end having a first area, wherein said first pump housing comprises an enlarged surface surrounding said open end of said chamber; a second pump housing member; and a membrane element with a second area, wherein said membrane element has a first central section having a third area with same size as said first area of said open end of said chamber, wherein said membrane element is arranged on said first pump housing member with said first central section positioned over said open end, forming a sealed chamber, and wherein a portion of said membrane element is slidably clamped between said enlarged surface and said second pump housing member, such that the clamped portion is allowed to move radially and to stretch when a force is applied.