US3310682A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hardness measurer using tiltable mirrors
Assignee: Short Brothers & Harland Ltd A
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Filing: 1963-05-20
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Granted: 1967-03-21
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Expires: 1983-05-20
Abstract
No abstract record available.
Inventors
- 👤 Potts John
- 👤 William J Henry
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 01:38
CPC Classifications
A; A24; A24C; A24C5/00; A24C5/32; A24C5/34; A24C5/343; A24C5/3412; G; G01; G01N; G01N33/00; G01N33/02
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
170 words
HARDNESS TESTING APPARATUS INCLUDING LIGHT PROJECTING MEANS FOR PROJECTING A BEAM OF LIGHT, A FIRST DEFLECTABLE MEMBER FOR RESILENTLY ENGAGING A FIRST PART OF AN ARTICLE TO BE TESTED, A SECOND DEFLECTABLE MEMBER FOR RESILIENTLY ENGAGING A SECOND PART OF SAID ARTICLE, MEANS TO APPLY A PREDETERMINED LOAD TO SAID SECOND DEFLECTABLE MEMBER TO TEND TO COMPRESS SAID SECOND PART OF SAID ARTICLE, LIGHT REFLECTING SURFACE MEANS FOR REFLECTING SAID PROJECTED LIGHT BEAM, MEANS INTERCONNECTING SAID LIGHT REFLECTING SURFACE MEANS AND SAID FIRST AND SECOND DEFLECTABLE MEMBERS TO EFFECT A PIVOTAL MOVEMENT OF THE LIGHT REFLECTING SURFACE MEANS IN RESPONSE TO A DIFFERENTIAL CHANGE IN THE ANGULAR POSITIONS OF SAID DEFLECTABLE MEMBERS AS A RESULT OF COMPRESSION OF SAID SECOND PART OF THE ARTICLE BY THE SECOND DEFLECTABLE MEMBER TO CAUSE A DEFLECTION IN SAID LIGHT BEAM REFLECTED FROM THE LIGHT REFLECTING SURFACE MEANS, AND LIGHT RESPONSIVE MEANS RECEIVING SAID LIGHT BEAM REFLECTED FROM SAID LIGHT REFLECTING SURFACE MEANS FOR PROVIDING A MEASUREMENT OF SAID DEFLECTION OF THE LIGHT BEAM.
Claim 2
Dependent Claim
170 words
HARDNESS TESTING APPARATUS INCLUDING LIGHT PROJECTING MEANS FOR PROJECTING A BEAM OF LIGHT, A FIRST DEFLECTABLE MEMBER FOR RESILENTLY ENGAGING A FIRST PART OF AN ARTICLE TO BE TESTED, A SECOND DEFLECTABLE MEMBER FOR RESILIENTLY ENGAGING A SECOND PART OF SAID ARTICLE, MEANS TO APPLY A PREDETERMINED LOAD TO SAID SECOND DEFLECTABLE MEMBER TO TEND TO COMPRESS SAID SECOND PART OF SAID ARTICLE, LIGHT REFLECTING SURFACE MEANS FOR REFLECTING SAID PROJECTED LIGHT BEAM, MEANS INTERCONNECTING SAID LIGHT REFLECTING SURFACE MEANS AND SAID FIRST AND SECOND DEFLECTABLE MEMBERS TO EFFECT A PIVOTAL MOVEMENT OF THE LIGHT REFLECTING SURFACE MEANS IN RESPONSE TO A DIFFERENTIAL CHANGE IN THE ANGULAR POSITIONS OF SAID DEFLECTABLE MEMBERS AS A RESULT OF COMPRESSION OF SAID SECOND PART OF THE ARTICLE BY THE SECOND DEFLECTABLE MEMBER TO CAUSE A DEFLECTION IN SAID LIGHT BEAM REFLECTED FROM THE LIGHT REFLECTING SURFACE MEANS, AND LIGHT RESPONSIVE MEANS RECEIVING SAID LIGHT BEAM REFLECTED FROM SAID LIGHT REFLECTING SURFACE MEANS FOR PROVIDING A MEASUREMENT OF SAID DEFLECTION OF THE LIGHT BEAM.
References Cited (Backward Citations)
US2042257A
Cited
US2504505A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-03-20 | 1970-09-19 | 1971-03-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-03-20 | 1974-09-19 | 1975-03-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-03-20 | 1978-09-19 | 1979-03-21 | $7700.00 | Window Closed / Lapsed |