US3263411A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Control apparatus
Assignee: Honeywell Inc
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Filing: 1965-08-02
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Granted: 1966-08-02
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Expires: 1985-08-02
Abstract
No abstract record available.
Inventors
- 👤 Jr William L Carlson
- 👤 James E Cox
- 👤 Dean Richard Hankins
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 13:17
CPC Classifications
G; G05; G05D; G05D23/00; G05D23/19; G05D23/1919; G05D23/1921
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
145 words
A THERMAL ACTUATOR COMPRISING: A BODY HAVING A PRESSURE CHAMBER THEREIN; AN OUTPUT MEMBER ASSOCIATED WITH SAID BODY AND MOVABLE WITH RESPECT THERETO IN RESPONSE TO PRESSURE CHANGES IN SAID CHAMBER; HEATER MEANS ASSOCIATED WITH SAID BODY AND OPERABLE TO ELEVATE THE TEMPERATURE IN SAID CHAMBER; AND A THERMALLY EXPANSIBLE FILL IN SAID CHAMBER, SAID FILL COMPRISING A MIXTURE OF TWO CLASSES OF ORGANIC MATERIALS INCLUDING A FIRST MATERIAL CHARACTERIZED IN THAT IT IS A RELATIVELY INCOMPRESSIBLE, THERMALLY STABLE SUBSTANCE HAVING A COMPARATIVELY LOW RATE OF THERMAL EXPANSION AT TEMPERATURES BELOW ABOUT 100*F., A COMPARATIVELY HIGH RATE OF THERMAL EXPANSION OVER A PREDETERMINED TEMPERTURE INCREMENT OCCURRING ABOVE 100*F., AND A COMPARATIVELY LOW RATE OF THERMAL EXPANSION AT TEMPERATURES ABOVE SAID PREDETERMINED TEMPERATURE INCREMENT, SAID FIRST MATERIAL FURTHER BEING CHARACTERIZED IN THAT IT IS NORMALLY BRITTLE AND RELATIVELY NONPLASTIC AT TEMPERATURES BELOW ABOUT 100*F., AND SAID
Claim 2
Dependent Claim
145 words
A THERMAL ACTUATOR COMPRISING: A BODY HAVING A PRESSURE CHAMBER THEREIN; AN OUTPUT MEMBER ASSOCIATED WITH SAID BODY AND MOVABLE WITH RESPECT THERETO IN RESPONSE TO PRESSURE CHANGES IN SAID CHAMBER; HEATER MEANS ASSOCIATED WITH SAID BODY AND OPERABLE TO ELEVATE THE TEMPERATURE IN SAID CHAMBER; AND A THERMALLY EXPANSIBLE FILL IN SAID CHAMBER, SAID FILL COMPRISING A MIXTURE OF TWO CLASSES OF ORGANIC MATERIALS INCLUDING A FIRST MATERIAL CHARACTERIZED IN THAT IT IS A RELATIVELY INCOMPRESSIBLE, THERMALLY STABLE SUBSTANCE HAVING A COMPARATIVELY LOW RATE OF THERMAL EXPANSION AT TEMPERATURES BELOW ABOUT 100*F., A COMPARATIVELY HIGH RATE OF THERMAL EXPANSION OVER A PREDETERMINED TEMPERTURE INCREMENT OCCURRING ABOVE 100*F., AND A COMPARATIVELY LOW RATE OF THERMAL EXPANSION AT TEMPERATURES ABOVE SAID PREDETERMINED TEMPERATURE INCREMENT, SAID FIRST MATERIAL FURTHER BEING CHARACTERIZED IN THAT IT IS NORMALLY BRITTLE AND RELATIVELY NONPLASTIC AT TEMPERATURES BELOW ABOUT 100*F., AND SAID
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) | 1969-08-01 | 1970-01-31 | 1970-08-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-08-01 | 1974-01-31 | 1974-08-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-08-01 | 1978-01-31 | 1978-08-02 | $7700.00 | Window Closed / Lapsed |