US3077763A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Low gas moisture measuring apparatus
Assignee: Leuna Werke GmbH
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Filing: 1959-01-30
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Granted: 1963-02-19
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Expires: 1979-01-30
Abstract
No abstract record available.
Inventors
- 👤 Gena Heinz
- 👤 Werner Eugen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 21:28
CPC Classifications
G; G01; G01N; G01N25/00; G01N25/56; G01N25/66; G01N25/68
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
215 words
A DEW POINT HYGROMETER FOR MEASURING THE MOISTURE CONTENT OF A GAS, COMPRISING A SINGLE LIGHT SOURCE, A SUPPORT MEMBER HAVING FIRST AND SECOND OPENINGS AROUND SAID LIGHT SOURCE, A DEW MIRROR SUBJECTED TO SAID GAS, A SECOND MIRROR ISOLATED FROM SAID GAS, A SINGLE LIGHT SENSITIVE ELEMENT, A FIRST LENS FOR FOCUSING THE LIGHT FROM THE SOURCE THROUGH SAID FIRST OPENING AND ONTO SAID DEW MIRROR, A SECOND LENS FOR FOCUSING THE LIGHT FROM SAID SOURCE THROUGH SAID SECOND OPENING AND ONTO SAID SECOND MIRROR, SAID MIRRORS AND LIGHT SENSITIVE ELEMENT BEING POSITIONED SO THAT LIGHT IS REFLECTED FROM THE MIRRORS ONTO SAID LIGHT SENSITIVE ELEMENT, MEANS ALTERNATELY EXPOSING SAID LIGHT SENSITIVE ELEMENT TO THE LIGHT REFLECTED FROM SAID DEW MIRROR AND THE LIGHT REFLECTED FROM SAID SECOND MIRROR, AMPLIFIER MEANS CONNECTED FROM SAID ELEMENT FOR PRODUCING A CONTROL VOLTAGE PROPORTIONAL TO THE DIFFERENCE IN INTENSITY BETWEENT HE LIGHT RAYS REFLECTED FROM SAID MIRRORS, MEANS RESPONSIVE TO SAID CONTROL VOLTAGE FOR VARYING THE TEMPERATURE OF SAID DEW MIRROR, MEANS RESPONSIVE TO SAID AMPLIFIER MEANS FOR INDICATING THE TEMPERATURE AT WHICH FOGGING OF SAID DEW MIRROR OCCURS, AND ADJUSTING MEANS POSITIONED IN ONE OF THE LIGHT PATHS FROM SAID MIRRORS FOR LIMITING THE AMOUNT OF LIGHT IN SAID PATH THAT FALLS ON SAID PHOTOSENSITIVE ELEMENT.
Claim 2
Dependent Claim
215 words
A DEW POINT HYGROMETER FOR MEASURING THE MOISTURE CONTENT OF A GAS, COMPRISING A SINGLE LIGHT SOURCE, A SUPPORT MEMBER HAVING FIRST AND SECOND OPENINGS AROUND SAID LIGHT SOURCE, A DEW MIRROR SUBJECTED TO SAID GAS, A SECOND MIRROR ISOLATED FROM SAID GAS, A SINGLE LIGHT SENSITIVE ELEMENT, A FIRST LENS FOR FOCUSING THE LIGHT FROM THE SOURCE THROUGH SAID FIRST OPENING AND ONTO SAID DEW MIRROR, A SECOND LENS FOR FOCUSING THE LIGHT FROM SAID SOURCE THROUGH SAID SECOND OPENING AND ONTO SAID SECOND MIRROR, SAID MIRRORS AND LIGHT SENSITIVE ELEMENT BEING POSITIONED SO THAT LIGHT IS REFLECTED FROM THE MIRRORS ONTO SAID LIGHT SENSITIVE ELEMENT, MEANS ALTERNATELY EXPOSING SAID LIGHT SENSITIVE ELEMENT TO THE LIGHT REFLECTED FROM SAID DEW MIRROR AND THE LIGHT REFLECTED FROM SAID SECOND MIRROR, AMPLIFIER MEANS CONNECTED FROM SAID ELEMENT FOR PRODUCING A CONTROL VOLTAGE PROPORTIONAL TO THE DIFFERENCE IN INTENSITY BETWEENT HE LIGHT RAYS REFLECTED FROM SAID MIRRORS, MEANS RESPONSIVE TO SAID CONTROL VOLTAGE FOR VARYING THE TEMPERATURE OF SAID DEW MIRROR, MEANS RESPONSIVE TO SAID AMPLIFIER MEANS FOR INDICATING THE TEMPERATURE AT WHICH FOGGING OF SAID DEW MIRROR OCCURS, AND ADJUSTING MEANS POSITIONED IN ONE OF THE LIGHT PATHS FROM SAID MIRRORS FOR LIMITING THE AMOUNT OF LIGHT IN SAID PATH THAT FALLS ON SAID PHOTOSENSITIVE ELEMENT.
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) | 1966-02-18 | 1966-08-20 | 1967-02-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-02-18 | 1970-08-20 | 1971-02-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-02-18 | 1974-08-20 | 1975-02-19 | $7700.00 | Window Closed / Lapsed |