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US3328294A Expired / Lapsed US ⏱️ 0.0 years remaining

Process for control of micro-organisms in process streams

Assignee: Mead Corp
•
Filing: 1966-09-19
•
Granted: 1967-06-27
•
Expires: 1986-09-19
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Abstract

No abstract record available.

Inventors

  • 👤 Richard W Self
  • 👤 Jr Joseph C Watkins
  • 👤 John K Sullins

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-06 10:03
CPC Classifications
C; C02; C02F; C02F1/00; C02F1/72; C02F1/76; Y; Y10; Y10S; Y10S210/00; Y10S210/928

Claims Analysis

Total Claims: 2
Claim 1
Independent Claim 164 words
A PROCESS FOR CONTROLLING THE GROWTH OF MICRO-ORGANISMS COMPRISING THE STEPS OF (A) CONTINUOUSLY SUPPLYING A SOLUTION OF SULFAMIC ACID, (B) CONTINUOUSLY MIXING AND REACTING SAID SULFAMIC ACID SOLUTION WITH A HYPOCHLORITE SOLUTION IN A REACTOR VESSEL TO FORM A REACTION PRODUCT SOLUTION OF NCHLOROSULFAMIC ACID, (C) DELIVERING SAID N-CHLOROSULFAMIC ACID SOLUTION TO AN INTERMEDIATE STORAGE VESSEL, (D) CONTINUOUSLY SUPPLYING SAID N-CHLOROSULFAMIC ACID SOLUTION FROM SAID INTERMEDIATE STORAGE VESSEL TO AQUEOUS PROCESS STREAMS REQUIRING CONTROL OF THE GROWTH OF MICRO-ORGANISMS, (E) REGULATING THE RATE OF SUPPLY OF SULFAMIC ACID SOLUTION BY LIQUID LEVEL IN SAID INTERMEDIATE STORAGE VESSEL, (F) REGULATING THE RATE OF SUPPLY OF SAID HYPOCHLORITE SOLUTION BY THE OXIDATION POTENTIAL OF THE N-CHLOROSULFAMIC ACID SOLUTION LEAVING SAID REACTION VESSEL, AND (G) REGULATING THE RATE OF SUPPLY OF SAID N-CHLOROSULFAMIC ACID SOLUTION TO SAID AQUEOUS PROCESS STREAM TO MAINTAIN A RESIDUAL ACTIVE CHLORINE CONTENT OF FROM 0.1 TO 5 PARTS PER MILLION, MEASURED DOWNSTREAM FROM THE POINT OF INTRODUCTION OF SAID NCHLOROSULFAMIC ACID.
Claim 2
Dependent Claim 164 words
A PROCESS FOR CONTROLLING THE GROWTH OF MICRO-ORGANISMS COMPRISING THE STEPS OF (A) CONTINUOUSLY SUPPLYING A SOLUTION OF SULFAMIC ACID, (B) CONTINUOUSLY MIXING AND REACTING SAID SULFAMIC ACID SOLUTION WITH A HYPOCHLORITE SOLUTION IN A REACTOR VESSEL TO FORM A REACTION PRODUCT SOLUTION OF NCHLOROSULFAMIC ACID, (C) DELIVERING SAID N-CHLOROSULFAMIC ACID SOLUTION TO AN INTERMEDIATE STORAGE VESSEL, (D) CONTINUOUSLY SUPPLYING SAID N-CHLOROSULFAMIC ACID SOLUTION FROM SAID INTERMEDIATE STORAGE VESSEL TO AQUEOUS PROCESS STREAMS REQUIRING CONTROL OF THE GROWTH OF MICRO-ORGANISMS, (E) REGULATING THE RATE OF SUPPLY OF SULFAMIC ACID SOLUTION BY LIQUID LEVEL IN SAID INTERMEDIATE STORAGE VESSEL, (F) REGULATING THE RATE OF SUPPLY OF SAID HYPOCHLORITE SOLUTION BY THE OXIDATION POTENTIAL OF THE N-CHLOROSULFAMIC ACID SOLUTION LEAVING SAID REACTION VESSEL, AND (G) REGULATING THE RATE OF SUPPLY OF SAID N-CHLOROSULFAMIC ACID SOLUTION TO SAID AQUEOUS PROCESS STREAM TO MAINTAIN A RESIDUAL ACTIVE CHLORINE CONTENT OF FROM 0.1 TO 5 PARTS PER MILLION, MEASURED DOWNSTREAM FROM THE POINT OF INTRODUCTION OF SAID NCHLOROSULFAMIC ACID.

References Cited (Backward Citations)

US2427097A Cited
US2438781A Cited
US2548646A Cited
US2944967A Cited
US3082146A Cited
US3091519A Cited
US3066015A Cited
US3170883A Cited
US3177140A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1970-06-26 1970-12-26 1971-06-27 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1974-06-26 1974-12-26 1975-06-27 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1978-06-26 1978-12-26 1979-06-27 $7700.00 Window Closed / Lapsed

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