US12571380USUSPTO Grant XML

Using balloon as damper for port of a reciprocating pump

A disposable single-piston dual-action reciprocating pump part includes a single piston, an output port, and a balloon damper. The output port is configured for outputting fluid pumped by the single piston. The balloon damper is fitted in the output port, and the balloon damper is configured to suppress a pulsation in a flow rate of the outputted fluid.

Patent

Brief

Patent brief

Problem

How can vibration in electric motors and rotors be reduced?

Novelty

The output port is configured for outputting fluid pumped by the single piston.

Uses

Motor mounts, Equipment isolation, Compact machinery

Assignee

Biosense Webster (Israel) Ltd.

Published

Mar 10, 2026

Inventors

Yehuda Algawi, Assaf Govari, Ilya Sitnitsky, Gili Attias

Domain

Electromechanical systems

Plain-English summary

Problem

How can vibration in electric motors and rotors be reduced?

Solution

disposable single-piston dual-action reciprocating pump part includes a single piston, an output port, and a balloon damper.

Key novelty

The output port is configured for outputting fluid pumped by the single piston.

Applications

Motor mountsEquipment isolationCompact machinery

Relevant search intents

damper

Claims preview

1 . A method of manufacturing a pump part, comprising: (a) partially assembling the pump part, the pump part comprising the following, and the partially assembling comprising assembling at least some of the following: a single piston configured and positioned to contact fluid; a cylinder having two ends and configured for longitudinal travel of the single piston from one end to the other end of the cylinder; a pair of output passages, each output passage of the pair of output passages including a one-way valve and, each output passage of the pair of output passages being configured to be in fluid communication with an end of the cylinder, each output passage of the pair of output passages being in fluid communication with a different end of the cylinder relative to the other output passage; an output port for outputting fluid pumped by the single piston, the output port being configured to be fluidly connected to each of the output passages, each one-way valve being configured to allow the fluid to flow in one direction from the output passage to the output port; and a rod configured to drive the single piston and to traverse each end of the cylinder; (b) fitting a balloon damper including a balloon in a chamber which is in fluid communication with the output port, the chamber being in fluid communication with the output port via a pair of channels communicating from the chamber into the output port, the pair of channels being located at respective longitudinal locations that are between the pair of output passages, the balloon damper being fitted in the chamber such that it is configured to suppress a pulsation in a flow rate of the outputted fluid; (c) fitting a pair of gaskets, each gasket of the pair of gaskets being fitted such that it is positioned between the rod and the respective end of the cylinder, each gasket of the pair of gaskets being fitted such that it is configured to seal the respective end of the cylinder; (d) completing assembly of the pump part. 2 . The method according to claim 1 , wherein the fitting the balloon damper comprises accepting, by the balloon damper, a shape of the chamber into which the balloon is fitted. 3 . The method according to claim 1 , further comprising packaging the assembled pump part in a sterile package.

Linked approaches

Damping mounts

Isolation and damping structures that absorb motor vibration.

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