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PROGRESSIVE PUMP FORCE REGULATION

  • US 20140134023A1
  • Filed: 11/15/2013
  • Published: 05/15/2014
  • Est. Priority Date: 11/15/2012
  • Status: Active Grant
First Claim
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1. A pump, comprising:

  • a pump housing including a chamber with a bevelled inner wall, said chamber including an open end having a third area;

    a membrane element, said membrane element including a first area and a central section with a second area surrounded by a periphery section,wherein said central section is thicker than said periphery section,wherein said second area of said central section is smaller than said third area of said open end of said chamber, andwherein said membrane element is arrangable over said pump housing forming a sealed chamber,such that said central section of said membrane element is arranged over said open end of said chamber, and said thicker central section is shaped to protrude away from said chamber.

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