Patent US3132516A successfully refreshed from Google Patents.
US3132516A
Expired / Lapsed
US
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Liquid level indicator
Assignee: YARNAIL WARING Co
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Filing: 1962-04-03
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Granted: 1964-05-12
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Expires: 1982-04-03
Abstract
No abstract record available.
Inventors
- 👤 Walter J Kinderman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 11:50
CPC Classifications
G; G01; G01F; G01F23/00; G01F23/02
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
103 words
IN A LIQUID LEVEL INDICATOR FOR INDICATION OF THE LEVEL OF THE LIQUID IN A BOILER OR THE LIKE, A CONSTANT HEAD COLUMN HAVING A TOP CONNECTION ADAPTED TO COMMUNICATE WITH STEAM IN THE BOILER, HAVING A BOTTOM CONNECTION ADAPTED TO COMMUNICATE WITH WATER IN THE BOILER AND HAVING AN OVERFLOW CONNECTION BETWEEN THE TOP AND THE BOTTOM CONNECTIONSD AND ADAPTED TO DETERMINE THE LEVEL OF LIQUID IN THE CONSTANT HEAD CHAMBER, AN INDICATOR CONNECTED AT ONE SIDE TO THE BOTTOM CONNECTION OF THE CONSTANT HEAD CHAMBER AND CONNECTED AT THE OTHER SIDE TO THE OVERFLOW CONNECTION OF THE CONSTANT HEAD CHAMBER, AND
Claim 2
Dependent Claim
103 words
IN A LIQUID LEVEL INDICATOR FOR INDICATION OF THE LEVEL OF THE LIQUID IN A BOILER OR THE LIKE, A CONSTANT HEAD COLUMN HAVING A TOP CONNECTION ADAPTED TO COMMUNICATE WITH STEAM IN THE BOILER, HAVING A BOTTOM CONNECTION ADAPTED TO COMMUNICATE WITH WATER IN THE BOILER AND HAVING AN OVERFLOW CONNECTION BETWEEN THE TOP AND THE BOTTOM CONNECTIONSD AND ADAPTED TO DETERMINE THE LEVEL OF LIQUID IN THE CONSTANT HEAD CHAMBER, AN INDICATOR CONNECTED AT ONE SIDE TO THE BOTTOM CONNECTION OF THE CONSTANT HEAD CHAMBER AND CONNECTED AT THE OTHER SIDE TO THE OVERFLOW CONNECTION OF THE CONSTANT HEAD CHAMBER, AND
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-05-12 | 1967-11-11 | 1968-05-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-05-12 | 1971-11-11 | 1972-05-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-05-12 | 1975-11-11 | 1976-05-12 | $7700.00 | Window Closed / Lapsed |