Patent US3847554A successfully refreshed from Google Patents.
US3847554A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Analysis of materials to measure vaporizable components
Assignee: Phillips Fibers Corp
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Filing: 1973-02-05
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Granted: 1974-11-12
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Expires: 1993-02-05
Abstract
Abstract The vaporizable components of a material, such as the moisture present in a solid polymer, are measured by vaporizing the components in a heated chamber and passing the resulting vapor to an analyzer. The chamber can be evacuated before the sample material is introduced.
Inventors
- 👤 T Su
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 15:37
CPC Classifications
G; G01; G01N; G01N7/00; G01N7/14; G01N7/16; Y; Y10; Y10T; Y10T436/00; Y10T436/25; Y10T436/25875
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
140 words
APPARATUS ADAPTED TO BE USE IN THE ANALYSIS OF MATERIALS TO DETECT VAPORIZABLE COMPONENTS THEREOF COMPRISING: A HOUSING FORMING FIRST AND SECOND CHAMBERS, SAID FIRST CHAMBER HAVING FIRST AND SECOND OPENINGS THEREIN IN SPACED RELATIONSHIP WITH ONE ANOTHER, SAID SECOND CHAMBER HAVING A THIRD OPENING THEREIN; A BARRIER MOVABLY POSITIONED SO AS TO BLOCK COMMUNICATION BETWEEN THE TWO CHAMBER WHEN LOCATED IN A FIRST POSITION AND TO PERMIT COMMUNICATION BETWEEN THE CHAMBERS WHEN LOCATED IN A SECOND POSITION; A PAN CONNECTED TO SAID BARRIER SO AS TO BE LOCATED IN SAID SECOND CHAMBER WHEN SAID BARRIER IS IN SAID FIRST POSITION; MEANS CONNECTED TO SAID BARRIER TO MOVE SAID BARRIER FROM SAID FIRST POSITION TO SAID SECOND POSITION AND THEREBY MOVE SAID PAN INTO SAID FIRST CHAMBER; AND HEATING MEANS ASSOCIATED WITH SAID FIRST CHAMBER TO ELEVATE THE TEMPERATURE THEREOF.
Claim 2
Dependent Claim
140 words
APPARATUS ADAPTED TO BE USE IN THE ANALYSIS OF MATERIALS TO DETECT VAPORIZABLE COMPONENTS THEREOF COMPRISING: A HOUSING FORMING FIRST AND SECOND CHAMBERS, SAID FIRST CHAMBER HAVING FIRST AND SECOND OPENINGS THEREIN IN SPACED RELATIONSHIP WITH ONE ANOTHER, SAID SECOND CHAMBER HAVING A THIRD OPENING THEREIN; A BARRIER MOVABLY POSITIONED SO AS TO BLOCK COMMUNICATION BETWEEN THE TWO CHAMBER WHEN LOCATED IN A FIRST POSITION AND TO PERMIT COMMUNICATION BETWEEN THE CHAMBERS WHEN LOCATED IN A SECOND POSITION; A PAN CONNECTED TO SAID BARRIER SO AS TO BE LOCATED IN SAID SECOND CHAMBER WHEN SAID BARRIER IS IN SAID FIRST POSITION; MEANS CONNECTED TO SAID BARRIER TO MOVE SAID BARRIER FROM SAID FIRST POSITION TO SAID SECOND POSITION AND THEREBY MOVE SAID PAN INTO SAID FIRST CHAMBER; AND HEATING MEANS ASSOCIATED WITH SAID FIRST CHAMBER TO ELEVATE THE TEMPERATURE THEREOF.
Claim 3
Dependent Claim
117 words
The apparatus of claim 1, further comprising: first conduit means communicating with said third opening to introduce a gas; second conduit means to introduce a gas; third conduit means to withdraw a fluid sample to be analyzed; fourth conduit means communicating with said first opening; fifth conduit means communicating with said second opening; and valve means connected to said second, third, fourth and fifth conduit means so as to connect said second and third conduit means and said fourth and fifth conduit means when the valve means is in a first position and to connect said second and fourth conduit means and said third and fifth conduit means when the valve means is in a second position.
Claim 4
Dependent Claim
20 words
The apparatus of claim 2, further comprising a vacuum source connected to one of said fourth and fifth conduit means.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-11-11 | 1978-05-13 | 1978-11-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-11-11 | 1982-05-13 | 1982-11-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-11-11 | 1986-05-13 | 1986-11-12 | $7700.00 | Window Closed / Lapsed |