US2604381A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method for testing refrigerating brines
Assignee: HILL BROS CHEMICAL CO
•
Filing: 1947-04-07
•
Granted: 1952-07-22
•
Expires: 1967-04-07
Abstract
No abstract record available.
Inventors
- 👤 Charles B Hill
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 08:57
CPC Classifications
G; G01; G01N; G01N17/00; Y; Y10; Y10S; Y10S436/00; Y10S436/908; Y10T; Y10T403/00; Y10T403/34
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
132 words
A PROCESS OF DETERMINING THE CORROSIVE PROPERTIES OF REFRIGERATING BRINES WHICH ARE IN CONTACT WITH BOTH STEEL SURFACES AND GALVANIZED SURFACES, WHICH METHOD COMPRISES WEIGHING A PLURALITY OF INDIVIDUAL TEST MEMBERS OF STEEL AND COUPLING SAID TEST MEMBERS IN THE FORM OF A ROD HAVING PACKING MEMBERS AT THE COUPLINGS, WEGHTING A PLURALITY OF TEST MEMBERS HAVING GALVANIZED SURFACES AND COUPLING SUCH TEST MEMBERS IN THE FORM OF A SECOND ROD WITH PACKINGS BETWEEN THE INDIVIDUAL TEST MEMBERS FOR PROTECTION OF THE COUPLINGS, INSERTING BOTH TEST RODS SO FORMED INTO THE REFRIGERATING BRINE TO BE TESTED, THEREAFTER PERIODICALLY REMOVING EACH ROD FROM THE BRINE, REMOVING ONE TEST MEMBER FROM EACH ROD, REINSERTING THE REMAINDER OF THE ROD, AND WEIGHTING SAID TEST MEMBERS FOR COMPARISON WITH THEIR WEIGHT BEFORE CONTACT WITH THE BRINE.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-07-22 | 1956-01-21 | 1956-07-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-07-22 | 1960-01-21 | 1960-07-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-07-22 | 1964-01-21 | 1964-07-22 | $7700.00 | Window Closed / Lapsed |