Diaphragm pump
First Claim
1. A diaphragm pump comprising a diaphragm (1) comprised of elastic material having a reinforced central area (3) with a receiving cavity (4) for a connecting rod head (5) of a connecting rod which displaces the diaphragm (1) between a top and a bottom dead center point, the diaphragm (1) is secured by a clamping rim (2) on an outer periphery thereof to the pump housing, wherein on an upper side (8) of the diaphragm (1) which is proximal to a chamber of the pump, at least one circularly disposed rib (9) is provided on the upper side (8) located radially outward from and proximal to a central area (3) bounded by an outline of the connecting rod head (5) or by an outline of a part of the diaphragm (1) near the connecting rod head (5).
1 Assignment
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Accused Products
Abstract
A diaphragm pump with a diaphragm (1) of elastic material, which includes a receiving cavity (4) in a reinforced central area (3) for a connecting rod head (5) of a connecting rod which displaces the diaphragm (1). The diaphragm (1) includes a clamping rim (2) for securing the diaphragm to the pump housing. On the upper side (8) of the diaphragm (1) which is proximal to the pump chamber, at least one circularly disposed rib (9) is provided essentially radially outward from and proximal to a central area (3) which area is bounded by the outline of the connecting rod head (5) or by the outline of a part of the diaphragm (1) near to the said connecting rod head (5). A plurality of ribs (9), spaced in a radial direction one from the other are provided and are located where the forces introduced by the connecting rod head (5) spread into the radial, neighboring ring area of the diaphragm.
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Citations
10 Claims
- 1. A diaphragm pump comprising a diaphragm (1) comprised of elastic material having a reinforced central area (3) with a receiving cavity (4) for a connecting rod head (5) of a connecting rod which displaces the diaphragm (1) between a top and a bottom dead center point, the diaphragm (1) is secured by a clamping rim (2) on an outer periphery thereof to the pump housing, wherein on an upper side (8) of the diaphragm (1) which is proximal to a chamber of the pump, at least one circularly disposed rib (9) is provided on the upper side (8) located radially outward from and proximal to a central area (3) bounded by an outline of the connecting rod head (5) or by an outline of a part of the diaphragm (1) near the connecting rod head (5).
Specification