US3327261A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Direction sensitive displacement transducer
Assignee: HP Inc
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Filing: 1965-09-22
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Granted: 1967-06-20
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Expires: 1985-09-22
Abstract
No abstract record available.
Inventors
- 👤 Philip B Beltz
- 👤 Donald W Brusch
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 08:54
CPC Classifications
H; H01; H01H; H01H36/00; H01H36/0006
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
173 words
A DIRECTION SENSITIVE DISPLACEMENT TRANSDUCER FOR SENSING THE DISPLACEMENT OF AN OBJECT ALONG AN AXIS, COMPRISING: FIRST AND SECOND REED SWITCHES EACH HAVING BY A PREDETERMINED CLOSING AND A LESSER PREDETERMINED OPENING MAGNETIC FLUX, MAGNET MEANS PROVIDING A MAGNETOMOTIVE FORCE, MEANS POSITIONING SAID SWITCHES AT DIFFERENT POINTS ALONG SAID AXIS RELATIVE TO EACH OTHER, SAID SWITCHES BEING POSITIONED RELATIVE TO SAID AXIS SUCH THAT THE FLUX FROM SAID MAGNET MEANS THAT IS EFFECTIVE TO CLOSE THE REEDS OF SAID FIRST SWITCH IS LESS THAN THE FLUX FROM SAID MAGNET MEANS THAT IS EFFECTIVE TO CLOSE THE REEDS OF SAID SECOND SWITCH, MEANS RESPONSIVE TO SAID OBJECT FOR DISPLACING SAID MAGNET MEANS AND SAID SWITCHES ALONG SAID AXIS RELATIVE TO EACH OTHER, THEREBY TO VARY THE FLUX LINKING RESPECTIVE ONES OF SAID REED SWITCHES BETWEEN AT LEAST THAT REQUIRED TO CLOSE THE RESPECTIVE SWITCHES AND A LESSER VALUE, AND MEANS FOR DETECTING WHEN THE REEDS OF BOTH OF SAID PAIRS OF SWITCHES ARE CLOSED, THEREBY TO SENSE A PREDETERMINED DIRECTIONAL DISPLACEMENT OF SAID OBJECT.
Claim 2
Dependent Claim
173 words
A DIRECTION SENSITIVE DISPLACEMENT TRANSDUCER FOR SENSING THE DISPLACEMENT OF AN OBJECT ALONG AN AXIS, COMPRISING: FIRST AND SECOND REED SWITCHES EACH HAVING BY A PREDETERMINED CLOSING AND A LESSER PREDETERMINED OPENING MAGNETIC FLUX, MAGNET MEANS PROVIDING A MAGNETOMOTIVE FORCE, MEANS POSITIONING SAID SWITCHES AT DIFFERENT POINTS ALONG SAID AXIS RELATIVE TO EACH OTHER, SAID SWITCHES BEING POSITIONED RELATIVE TO SAID AXIS SUCH THAT THE FLUX FROM SAID MAGNET MEANS THAT IS EFFECTIVE TO CLOSE THE REEDS OF SAID FIRST SWITCH IS LESS THAN THE FLUX FROM SAID MAGNET MEANS THAT IS EFFECTIVE TO CLOSE THE REEDS OF SAID SECOND SWITCH, MEANS RESPONSIVE TO SAID OBJECT FOR DISPLACING SAID MAGNET MEANS AND SAID SWITCHES ALONG SAID AXIS RELATIVE TO EACH OTHER, THEREBY TO VARY THE FLUX LINKING RESPECTIVE ONES OF SAID REED SWITCHES BETWEEN AT LEAST THAT REQUIRED TO CLOSE THE RESPECTIVE SWITCHES AND A LESSER VALUE, AND MEANS FOR DETECTING WHEN THE REEDS OF BOTH OF SAID PAIRS OF SWITCHES ARE CLOSED, THEREBY TO SENSE A PREDETERMINED DIRECTIONAL DISPLACEMENT OF SAID OBJECT.
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) | 1970-06-19 | 1970-12-19 | 1971-06-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-06-19 | 1974-12-19 | 1975-06-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-06-19 | 1978-12-19 | 1979-06-20 | $7700.00 | Window Closed / Lapsed |