Patent · US Active

Membrane pump with bleed valve

US8512010B2 · kind B2 · utility

3Cited by

20References

31Claims

0Family size

Assignee

MEDELA HOLDING AG · CH

Inventors

Alex Stutz · Baar, CH
Beda Weber · Sins, CH
Erich Pfenninger · Ebikon, CH

Key dates

Filing date	Sep 6, 2005
Grant date	Aug 20, 2013
Priority date	—
Expiry date	Sep 25, 2028

Classification

Technology area (CPC F)Mechanical Engineering; Lighting; Heating
CPC primaryF16K31/0672
WIPO fieldMedical technology
WIPO sectorInstruments

Abstract

A suction pump, in particular a breast pump, comprises a bleed valve with a bleed opening, a bleed body which seals the bleed opening and an electromagnet for operating the bleed body. The bleed body may be operated such that upon opening the valve initially only a partial region of the bleed opening is released and subsequently a greater part thereof or the whole bleed opening is released. The suction pump provides a large functionality with the smallest size and, furthermore, is cheap to produce and easily assembled.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.