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US 10,591,446 B2Granted
Sealing moving with piston in a high-pressure pump
AssigneeAgilent Technologies, Inc.
InventorsBlasius Nocon, Joachim-Richard Wagner, Karsten Lehradt
Life of this patent
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Abstract
A piston member for a high-pressure pump for pumping fluid in a sample separation apparatus, wherein the piston member comprises a piston configured for being mountable to reciprocate in a piston chamber for displacing fluid, and a sealing for sealing between the piston member and the piston chamber when the piston member is mounted in the piston chamber to reciprocate, wherein the sealing is mounted on the piston so as to reciprocate together with the piston.
Claims19
A high-pressure pump configured for pumping fluid in an HPLC sample separation apparatus, the pump comprising:
- a piston chamber;
- a piston member configured for reciprocating in a reciprocation direction in the piston chamber for displacing fluid;
- a sealing for sealing between the piston member and the piston chamber, wherein the sealing is mounted on the piston member so as to reciprocate together with the piston member;
- a base body at least partly surrounding the piston chamber;
- and
- a static piston guide unit disposed along an interior wall of the base body and configured for guiding the piston member along the reciprocation direction.
3 more elements
Dependencies are inferred from the claim text.