Patent · US Active

Seal for tube

US7861875B2 · kind B2 · utility

3Cited by

8References

8Claims

0Family size

Assignee

Tubemaster, Inc. · US

Inventors

Clifford L. Johns · Louisville, US
Daniel D. Sympson · Louisville, US
August M. Dattilo, III · Louisville, US
Munaf Chasmawala · Louisville, US
Manfred Schmidt · Krefeld, DE

Key dates

Filing date	Jan 30, 2008
Grant date	Jan 4, 2011
Priority date	—
Expiry date	Mar 20, 2029

Classification

Technology area (CPC B)Performing Operations; Transporting
CPC primaryB01L2200/146
WIPO fieldChemical engineering
WIPO sectorChemistry

Abstract

A seal for sealing against the interior of a tube includes upper and lower rigid plates with flexible plates between them, which are compressed to form a seal.

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