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US 3,943,002 AGranted
Device for drying negative plates and plates made therewith
AssigneeESB Incorporated
InventorsRobert F. Scheuerle, John F. Vinkler
Life of this patent
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Abstract
Wet formed negative storage battery plates are dried without oxidation by a drying cycle including a first portion where dry steam is circulated about the plates, and a second portion where the plates are further dried and cooled in carbon dioxide containing atmosphere until they will not oxidize when exposed to air. An apparatus for carrying out this drying cycle is also described.
Claims6
A method of drying wet formed negative storage battery plates without oxidation which comprises in sequence:
- a. placing the wet formed negative plates in piled configuration in an enclosed chamber with an atmosphere therein;
- b. sealing the chamber;
- c. introducing steam into the chamber;
- d. circulating the atmosphere in the chamber and adding heat and steam thereto at a chosen temperature profile to provide a drying cycle until the plates are dry;
- f. with circulation continuing, providing a cooling cycle by:
- 1. intorducing an inert gas other than steam into the chamber;
- 2. stopping the introduction of steam while continuing the introduction of inert gas other than steam;
- 3. stopping the introduction of heat;
- and,
- 4. cooling the atmosphere in the oven until the temperature of the plates is taken below a chosen value.
7 more elements
Dependencies are inferred from the claim text.