Progressive pump force regulation
First Claim
Patent Images
1. A pump, comprising:
- a pump housing including a chamber with a beveled inner side 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,whereinsaid central section is thicker than said periphery section,said second area of said central section is smaller than said third area of said open end of said chamber,said membrane element is arrangable over said pump housing forming a sealed chamber,said central section of said membrane element being arranged over said open end of said chamber,said thicker central section being shaped to protrude away from said chamber,said beveled inner side wall forms a progressively narrowing, progressive deceleration surface for the central section as the central section is pressed inward within the chamber during a pump stroke.
2 Assignments
0 Petitions
Accused Products
Abstract
A pump comprising a membrane element and a pump housing having a chamber with a bevelled inner wall. The chamber comprises an open end having a third area. The membrane element has a first area, and comprises a central section with a second area which is surrounded by a periphery section. The central section is thicker than the periphery section. Further, the second area of the central section is smaller than the third area of the open end of the chamber and the membrane element is arrangable over said pump housing forming a sealed chamber, whereby the central section of the membrane element is arranged over the open end, and the central section is protruding away from the chamber.
-
Citations
14 Claims
-
1. A pump, comprising:
-
a pump housing including a chamber with a beveled inner side 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, said second area of said central section is smaller than said third area of said open end of said chamber, said membrane element is arrangable over said pump housing forming a sealed chamber, said central section of said membrane element being arranged over said open end of said chamber, said thicker central section being shaped to protrude away from said chamber, said beveled inner side wall forms a progressively narrowing, progressive deceleration surface for the central section as the central section is pressed inward within the chamber during a pump stroke. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
-
Specification