Distributor head for a suction pump

Patent metadata

Field	Value
Publication number	US-10704543-B2
Application number	US-201916366258-A
Country	US
Kind code	B2
Filing date	Mar 27, 2019
Priority date	Sep 27, 2016
Publication date	Jul 7, 2020
Grant date	Jul 7, 2020

Abstract

A distributor head for a suction pump which includes a housing ( 12 ), a pump port ( 16 ) configured to apply a negative pressure, and a plurality of hollow needles ( 18 ). The hollow needles are fixed to the housing ( 12 ), are connected in a liquid-tight manner to the pump port ( 16 ), and are arranged parallel to and at a distance from one another. Individual connecting paths ( 34 ) of the hollow needles ( 18 ) to the pump port ( 16 ) include respective, independently operable control valves ( 36 ).

First claim

What is claimed is:

1. Distributor head for a suction pump, comprising
a housing,
a pump port configured to apply a negative pressure and
a plurality of hollow needles , which are fixed to the housing, are connected in a liquid-tight manner to the pump port, and are arranged parallel to and at respective distances from one another,

wherein the plurality of hollow needles have respective individual connecting paths to the pump port that each comprise respective control valves that are operable independently from one another, wherein each of the control valves is assigned a respective test chamber, respective inner spaces of the chambers are part of the respective connecting paths, and an outer wall of the chambers comprises a viewing window penetrating the housing, and
wherein the test chambers are arranged on hollow needle sides of the respective control valves in the respective connecting paths.

2. Distributor head, as claimed in claim 1 , wherein the plurality of hollow needles are each individually adjustable in a vertical position.

3. Distributor head, as claimed in claim 1 , wherein the control valves are negative pressure-sensitive normally open valves.

4. Distributor head, as claimed in claim 1 , further comprising at least one telescopic rod arranged parallel to the hollow needles on the housing and configured to moveably guide the housing relative to an exterior plate.

5. Distributor head, as claimed in claim 4 , further comprising an adjustable stop limiting a travel path of the housing relative to the plate.

6. Distributor head, as claimed in claim 4 , wherein the telescopic rod comprises a damping mechanism.

Assignees

• Sartorius Lab Instr Gmbh & Co Kg

Inventors

• Bode Jonas
• Staender Malte

Classifications

• G01G17/04 Primary

  for weighing fluids, e.g. gases, pastes · CPC title

• G01N35/085

  Flow Injection Analysis · CPC title

• A61M5/1408

  in parallel, e.g. manifolds, sequencing valves (access sites A61M39/02; tube connectors A61M39/10) · CPC title

• F04B39/08 Primary

  Actuation of distribution members · CPC title

• F04B39/10

  Adaptations or arrangements of distribution members · CPC title