US3307164A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Device for measuring axial displacement of a shaft
Assignee: DR REUTLINGER AND SOHNE
•
Filing: 1961-05-29
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Granted: 1967-02-28
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Expires: 1981-05-29
Abstract
No abstract record available.
Inventors
- 👤 Zimmer Karl Friedrich
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 18:57
CPC Classifications
G; G01; G01D; G01D5/00; G01D5/26; G01D5/32; G01D5/34; G01D5/347; G01D5/34776; G01D5/34784; G01B; G01B7/00; G01B7/14; G01D5/12; G01D5/14; G01D5/20
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
156 words
A DEVICE FOR INDICATING THE LONGITUDINAL POSITION OF A ROTATING SHAFT COMPRISING TWO ELONGATED MAGNETIC FIELD PRODUCING MEMBERS HAVING INDUCTOR WINDINGS THEREON AND DISPOSED BESIDE EACH OTHER STATIONARY NEAR THE SHAFT AND EXTENDING ALONGSIDE THE SHAFT BUT CONVERGING TOWARD EACH OTHER AT THEIR RESPECTIVE ENDS; AN IRON PIN PROJECTING FROM AND FAST ON THE SHAFT AND INTO THE FIELDS OF THE MEMBERS FOR INDUCING ALTERNATING SINGLE PERIOD PULSES IN THE RESPECTIVE WINDINGS IN SEQUENCE AS THE PIN MOVES PAST THE RESPECTIVE MEMBER; MEANS FOR RECTIFYING THE ALTERNATING PULSES AT CORRESPONDING PHASES TO UNIDIRECTIONAL PULSES, A GATE SWITCH MEANS CLOSED BY THE UNIDIRECTIONAL PULSES FROM ONE WINDING AND OPENED BY THE OTHER TO PRODUCE A SUBSTANTIALLY CONSTANT AMPLITUDE SQUARE WAVE UNIDIRECTIONAL PULSE OF DURATION EQUAL TO THE TIME INTERVAL BETWEEN CORRESPONDING PHASE POSITIONS OF THE TWO ALTERNATING PULSES, AND AN AVERAGE READING METER CONNECTED TO THE SWITCH MEANS TO MEASURE THE AVERAGE OUTPUT OF THE SQUARE WAVE
Claim 2
Independent Claim
156 words
A DEVICE FOR INDICATING THE LONGITUDINAL POSITION OF A ROTATING SHAFT COMPRISING TWO ELONGATED MAGNETIC FIELD PRODUCING MEMBERS HAVING INDUCTOR WINDINGS THEREON AND DISPOSED BESIDE EACH OTHER STATIONARY NEAR THE SHAFT AND EXTENDING ALONGSIDE THE SHAFT BUT CONVERGING TOWARD EACH OTHER AT THEIR RESPECTIVE ENDS; AN IRON PIN PROJECTING FROM AND FAST ON THE SHAFT AND INTO THE FIELDS OF THE MEMBERS FOR INDUCING ALTERNATING SINGLE PERIOD PULSES IN THE RESPECTIVE WINDINGS IN SEQUENCE AS THE PIN MOVES PAST THE RESPECTIVE MEMBER; MEANS FOR RECTIFYING THE ALTERNATING PULSES AT CORRESPONDING PHASES TO UNIDIRECTIONAL PULSES, A GATE SWITCH MEANS CLOSED BY THE UNIDIRECTIONAL PULSES FROM ONE WINDING AND OPENED BY THE OTHER TO PRODUCE A SUBSTANTIALLY CONSTANT AMPLITUDE SQUARE WAVE UNIDIRECTIONAL PULSE OF DURATION EQUAL TO THE TIME INTERVAL BETWEEN CORRESPONDING PHASE POSITIONS OF THE TWO ALTERNATING PULSES, AND AN AVERAGE READING METER CONNECTED TO THE SWITCH MEANS TO MEASURE THE AVERAGE OUTPUT OF THE SQUARE WAVE
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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) | 1970-02-27 | 1970-08-29 | 1971-02-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-02-27 | 1974-08-29 | 1975-02-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-02-27 | 1978-08-29 | 1979-02-28 | $7700.00 | Window Closed / Lapsed |