US3338099A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Boiling point indicator
Assignee: American Radiator and Standard Sanitary Corp
•
Filing: 1965-10-23
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Granted: 1967-08-29
•
Expires: 1985-10-23
Abstract
No abstract record available.
Inventors
- 👤 Jr Ralph B Remick
- 👤 Harry J Van Kuyk
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 21:28
CPC Classifications
G; G01; G01K; G01K11/00; G01K11/02
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
110 words
IN AN ENGINE COOLING SYSTEM HAVING A COOLANT PASSAGE DEFINED IN PART BY A RADIATOR; A FLUID-CHARGED BULB LOCATED TO RESPOND TO THE TEMPERATURE OF THE COOLANT WHEN HEATED BY THE ENGINE; A TEMPERATURE GAUGE COMPRISING A CASING LOCATED REMOTE FROM THE BULB AND COOLING SYSTEM, SAID CASING HAVING A PRESSURE-DEFLECTABLE WALL MEANS SUBDIVIDING SAME INTO FIRST AND SECOND FLUID CHAMBERS HAVING INVERSELY VARYING VOLUMES; S FLUID TRANSMISSION TUBE EXTENDING FROM THE BULB INTO THE FIRST CHAMBER WHEREBY AN INCREASING ENGINE TEMPERATURE TENDS TO CAUSE THE DEFLECTABLE WALL MEANS TO MOVE IN THE DIRECTION WHICH EXPANDS THE FIRST CHAMBER; MEANS, INCLUDING A SECOND FLUID TRANSMISSION TUBE, FOR APPLYING THE STATIC
Claim 2
Dependent Claim
110 words
IN AN ENGINE COOLING SYSTEM HAVING A COOLANT PASSAGE DEFINED IN PART BY A RADIATOR; A FLUID-CHARGED BULB LOCATED TO RESPOND TO THE TEMPERATURE OF THE COOLANT WHEN HEATED BY THE ENGINE; A TEMPERATURE GAUGE COMPRISING A CASING LOCATED REMOTE FROM THE BULB AND COOLING SYSTEM, SAID CASING HAVING A PRESSURE-DEFLECTABLE WALL MEANS SUBDIVIDING SAME INTO FIRST AND SECOND FLUID CHAMBERS HAVING INVERSELY VARYING VOLUMES; S FLUID TRANSMISSION TUBE EXTENDING FROM THE BULB INTO THE FIRST CHAMBER WHEREBY AN INCREASING ENGINE TEMPERATURE TENDS TO CAUSE THE DEFLECTABLE WALL MEANS TO MOVE IN THE DIRECTION WHICH EXPANDS THE FIRST CHAMBER; MEANS, INCLUDING A SECOND FLUID TRANSMISSION TUBE, FOR APPLYING THE STATIC
References Cited (Backward Citations)
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Cited
US2244335A
Cited
US2431801A
Cited
US2662757A
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US2601777A
Cited
US3083576A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-08-28 | 1971-02-27 | 1971-08-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-08-28 | 1975-02-27 | 1975-08-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-08-28 | 1979-02-27 | 1979-08-29 | $7700.00 | Window Closed / Lapsed |