Patent · US Active

Vacuum attachment and method

US7878225B2 · kind B2 · utility

4Cited by

18References

12Claims

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	Dec 12, 2007
Grant date	Feb 1, 2011
Priority date	—
Expiry date	Dec 11, 2028

Classification

Technology area (CPC B)Performing Operations; Transporting
CPC primaryB01J2208/00769
WIPO fieldChemical engineering
WIPO sectorChemistry

Abstract

A device and method for vacuuming solid particles out of a chemical reactor tube. One embodiment comprises the step of substantially reducing the vacuum level applied to the vacuum conduit when the conduit reaches a desired depth within the reactor tube by using means responsive to the depth to which the vacuum conduit is inserted into the reactor tube.

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