Patent · US Expired

Closure systems for chromatographic columns

US6090190A · kind A · utility

8Cited by

12References

24Claims

0Family size

Assignee

Hoechst Marion Roussel Deutschland GmbH · DE

Inventors

Alfons Enhsen · Lennestadt, DE
Ralf Watkowiak · Eppstein, DE

Key dates

Filing date	Dec 11, 1998
Grant date	Jul 18, 2000
Priority date	—
Expiry date	Dec 11, 2018

Classification

Technology area (CPC F)Mechanical Engineering; Lighting; Heating
CPC primaryF16L37/20
WIPO fieldChemical engineering
WIPO sectorChemistry

Abstract

A device for establishing a flange connection, having a bearing which can act on a first flange, a counter-bearing which can act on a second flange, and a connecting lever between the two bearings is described. The invention is distinguished by the fact that the connecting lever is a lever with a drawing element. The drawing element and the lever each have a first and second end. The drawing element's first end engages the bearing and its second end jointedly mounts in between the first and second ends of the lever. The counter-bearing has at least one contact location for the first end of the lever and a recess for the drawing element.

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