US3295358A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method and apparatus for determining the thermal expansion of materials
Assignee: Individual
•
Filing: 1964-06-15
•
Granted: 1967-01-03
•
Expires: 1984-06-15
Abstract
No abstract record available.
Inventors
- 👤 Boenisch Dietmar
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 19:09
CPC Classifications
G; G01; G01N; G01N25/00; G01N25/16
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
136 words
AN APPARATUS FOR DETERMINING THE THERMAL EXPANSION OF INDUSTRIAL MATERIALS SUCH AS MOLDING AND CORE SANDS AND OTHER REFRACTORY MATERIALS, COMPRISING: A HOUSING HAVING A COVER, MEANS FOR SUPPORTING A TEST SPECIMEN ABOVE THE COVER, A QUARTZ GLASS ROD EXTENDING VERTIALLY FROM AND FIRMLY SECURED IN SAID COVER AND BENT AT A RIGHT ANGLE AT ITS UPPER END TO FORM A BACKING ELEMENT FOR THE TEST SPECIMEN, A PROBE ELEMENT COMPRISED OF A SIMILARLY BENT QUARTZ GLASS ROD WITH AN ELONGATED SHAFT FREELY MOVABLY VERTICALLY EXTENDING THROUGH AN OPENING IN THE COVER, A FULCRUMED MEASURING BEAM IN THE HOUSING, THE LOWER END OF THE PROBE SHAFT BEING CONNECTED TO ONE END OF SAID MEASURING BEAM, THE OPPOSITE END OF THE MEASURING BEAM PROJECTING OUT OF THE HOUSING, AND BEAM DISPLACEMENT SENSING MEANS CONNECTED WITH SAID BEAM.
Claim 2
Independent Claim
136 words
AN APPARATUS FOR DETERMINING THE THERMAL EXPANSION OF INDUSTRIAL MATERIALS SUCH AS MOLDING AND CORE SANDS AND OTHER REFRACTORY MATERIALS, COMPRISING: A HOUSING HAVING A COVER, MEANS FOR SUPPORTING A TEST SPECIMEN ABOVE THE COVER, A QUARTZ GLASS ROD EXTENDING VERTIALLY FROM AND FIRMLY SECURED IN SAID COVER AND BENT AT A RIGHT ANGLE AT ITS UPPER END TO FORM A BACKING ELEMENT FOR THE TEST SPECIMEN, A PROBE ELEMENT COMPRISED OF A SIMILARLY BENT QUARTZ GLASS ROD WITH AN ELONGATED SHAFT FREELY MOVABLY VERTICALLY EXTENDING THROUGH AN OPENING IN THE COVER, A FULCRUMED MEASURING BEAM IN THE HOUSING, THE LOWER END OF THE PROBE SHAFT BEING CONNECTED TO ONE END OF SAID MEASURING BEAM, THE OPPOSITE END OF THE MEASURING BEAM PROJECTING OUT OF THE HOUSING, AND BEAM DISPLACEMENT SENSING MEANS CONNECTED WITH SAID BEAM.
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) | 1970-01-02 | 1970-07-04 | 1971-01-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-01-02 | 1974-07-04 | 1975-01-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-01-02 | 1978-07-04 | 1979-01-03 | $7700.00 | Window Closed / Lapsed |