Patent · US Active

Spiral conveyor mezzanine seal

US11525513B2 · kind B2 · utility

0Cited by

1References

20Claims

0Family size

Assignee

JOHN BEAN TECHNOLOGIES AB · SE

Inventors

Kenny Tobias Norén · Råå, SE
Anders Rickard Schön · Staffanstorp, SE
Nils Anton Persson · Lund, SE

Key dates

Filing date	Oct 24, 2019
Grant date	Dec 13, 2022
Priority date	—
Expiry date	Dec 23, 2040

Classification

Technology area (CPC B)Performing Operations; Transporting
CPC primaryB65G2207/24
WIPO fieldHandling
WIPO sectorMechanical engineering

Abstract

A thermal processing apparatus (20) includes a spiral conveyor system (22) configured into an ascending spiral stack (26). An inner mezzanine (40) is disposed within the circular interior of the stack (26) and an exterior mezzanine (42) encircles the spiral stack. The mezzanines divide the processing chamber (32) into a plurality of processing zones. A sealing system (90) seals the interior mezzanine (40) relative to the spiral stack (26). A sealing system (130) seals the outer mezzanine (42) relative to the exterior of the spiral stack, and a seal system (132) seals the outer mezzanine relative to the walls (56, 58) of the housing, thereby to limit the leakage of the processing fluid between the mezzanines and the spiral stack (26) and housing walls so that as much as the thermal processing medium is possible is forced through the spiral stack for processing work products carried on the conveyor system (22).

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