SYSTEM FOR PRODUCING AND DISCHARGING OXIDIZERS FOR WASHING OPERATIONS

• US 3,682,190 A
• Filed: 06/17/1970
• Issued: 08/08/1972
• Est. Priority Date: 06/17/1970
• Status: Expired due to Term

• Current Assignee: Arvind S. Patil, Carmen R. Sarge, Edwin R. Loder, Philip M. Sabatelli, Preston L. Veltman
• Original Assignee: Arvind S. Patil, Carmen R. Sarge, Edwin R. Loder, Philip M. Sabatelli, Preston L. Veltman
• Inventors: Patil, Arvind S., Veltman, Preston L., Loder, Edwin R., Sabatelli, Philip M., Sarge, Carmen R.
• Primary Examiner(s): Cohan, Alan
• Assistant Examiner(s): Zobkiw, David J.
• Application Number:
  US05/046,941
• Time in Patent Office: 783 Days
• Field of Search: 134/57D,57R,100 137/5,93 204/95,149,151,152,275
• US Class Current: 137/93
• CPC Class Codes: A47L 15/4238 by using electrolytic cells
• CPC Class Codes: C02F 1/4674 with halogen or compound of halogens, e.g. chlorine, bromine
• CPC Class Codes: C11D 2111/12 Soft surfaces, e.g. textile
• CPC Class Codes: C11D 3/3953 Inorganic bleaching agents C11D3/3951 takes precedence
• CPC Class Codes: Y10T 137/2509 By optical or chemical property

Abstract

The invention disclosed is directed to a system for generating and discharging oxidizers such as sodium hypochlorite in washing operations where maintenance of a predetermined concentration of oxidizer for extended periods on a continuous and automated basis is essential for stain removal and disinfection. The oxidizer production is achieved by controlled electrolysis of suitable salts in a vessel separate from that in which the objects are washed. The supply of oxidizer to the wash solution is accomplished by a regulated overflow system.

Claims

2. The washing system of claim 1 wherein said salt is selected from the group consisting of sodium chloride, and potassium chloride and wherein the concentration of said salt in said solution is within the range of from about 1. percent by weight to about the percent by weight at which the solution is saturated.

3. The washing system of claim 1 wherein the overflow outlet is controlled by a solenoid valve which is actuated by a conductivity cell whenever the conductivity of the wash solution falls below a predetermined value for maintaining a predetermined concentration of oxidizer in the wash solution.

4. The washing system of claim 1 wherein the concentration of the oxidizer is from about 20 to about 40 parts per million of chlorine in the wash solution.

5. The washing system of claim 1 wherein the concentration of the oxidizer is from about 1 to about 10 parts per million of iodine in the wash solution.