Patent GB486237A successfully refreshed from Google Patents.
← Back to Patent Explorer
GB486237A Expired / Lapsed GB ⏱️ 0.0 years remaining

Improvements in heat exchangers for use in the separation of air by liquefaction

Assignee: Individual
•
Filing: 1937-03-19
•
Granted: —
•
Expires: 1957-03-19
📄 Original PDF 🌐 Google Patents 🔄 Sync Now

Abstract

Abstract 486,237. Plate heat - exchangers. GELDBACH, W. March 19, 1937, No. 8088. [Class 64 (iii)] A heat-exchanger for use in plant for separating nitrogen and oxygen from the air by liquefaction comprises spiral ducts 1, 2, having inlet ports 1<1>, 21 for separated oxygen and nitrogen respectively, and an intermediate duct 4 through which pass pipes 5 connected to inlet and outlet headers 6, 7 respectively for compressed air. Oxygen or nitrogen may be passed through the duct 4.

Inventors

No inventors recorded.

Bibliographic Details

Application Number —
Jurisdiction GB
Data Source google_patents
Last Synchronized 2026-10-23 08:17
CPC Classifications
F; F25; F25J; F25J5/00; F25J5/002

Claims Analysis

Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.

References Cited (Backward Citations)

No citation records indexed.

USPTO Annuity & Maintenance Windows

Maintenance schedule is calculated for granted US utility patents.

Assigned Categories & Tags

No categories assigned to this patent yet.

Assign Category Tag