Fluid pump having a piston and a supporting body bearing the piston for sealing
AssigneeAgilent Technologies, Inc.
InventorsBernhard Dehmer, Andre Lichtenberger
Life of this patent
Estimating the term…
Abstract
A fluid pump for pumping fluid in a sample separation device includes a pump body device, a piston arranged for conveying fluid in a reciprocable manner in the pump body device, a seal arranged fluid-sealingly in contact with and between the pump body device and the piston, and a supporting body, which is coupled to the seal for supporting the latter. The supporting body is arranged at the pump body device, thereby forming a bearing for the piston.
Claims23
A fluid pump for pumping fluid in a sample separation device, the fluid pump comprising:
- a pump body device;
- a piston arranged for conveying fluid in a reciprocable manner in the pump body device;
- a seal arranged in contact with, and fluid-sealingly between, the pump body device and the piston;
- and
- a supporting body coupled to and supporting the seal;
- wherein the supporting body is arranged at the pump body device, thereby forming a stationary bearing for the piston, and
- wherein the supporting body comprises a coating selected from the group consisting of:
- diamond;
- polycrystalline diamond;
- and smoothed polycrystalline diamond.
(canceled)
(canceled)
A method for manufacturing a fluid pump for pumping fluid in a sample separation device, the method comprising:
- arranging a piston in a reciprocable manner for conveying fluid in a pump body device;
- arranging a seal in contact with, and fluid-sealingly between, the pump body device and the piston;
- providing a supporting body, which is coupled to and supports the seal;
- and
- arranging the supporting body at the pump body device, such that the supporting body forms a stationary bearing for the piston,
- wherein the supporting body comprises a coating selected from the group consisting of:
- diamond;
- polycrystalline diamond;
- and, smoothed polycrystalline diamond.
-25. (canceled)
Dependencies are inferred from the claim text.