US3084986A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method for machine control
Assignee: Telefonaktiebolaget LM Ericsson AB
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Filing: 1959-03-23
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Granted: 1963-04-09
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Expires: 1979-03-23
Abstract
No abstract record available.
Inventors
- 👤 Schoneck Walter
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 09:17
CPC Classifications
G; G07; G07C; G07C3/00; Y; Y10; Y10T; Y10T409/00; Y10T409/30; Y10T409/30084; Y10T409/300896
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
107 words
APPARATUS FOR INDICATING THE TIME DURING WHICH A METAL WORKING TOOL OF A MACHINE TOOL WORKS A METAL WORKPIECE, SAID APPARATUS COMPRISING, IN COMBINATION, A RECORDER FOR INDICATING THE TIME DURING WHICH THE WORKPIECE IS WORKED, MEANS FOR DETECTING THE THERMO-POTENTIAL DEVELOPED ACROSS A THERMOJUNCTION FORMED BY THE ENGAGING SURFACES OF THE WORKING TOOL AND THE WORKPIECE DURING THE WORKING OF THE WORKPIECE, SENSING CIRCUIT MEANS FOR APPLYING THE THERMO-POTENTIAL DEVELOPED ACROSS SAID THERMOJUNCTION AND DETECTED BY SAID DETECTING MEANS TO SAID RECORDER TO INDICATE THE TIME DURING WHICH THE WORKPIECE IS WORKED, AND MEANS CONNECTED BETWEEN SAID DETECTING MEANS AND SAID RECORDER FOR AMPLIFYING SAID THERMO-POTENTIAL.
Claim 2
Dependent Claim
107 words
APPARATUS FOR INDICATING THE TIME DURING WHICH A METAL WORKING TOOL OF A MACHINE TOOL WORKS A METAL WORKPIECE, SAID APPARATUS COMPRISING, IN COMBINATION, A RECORDER FOR INDICATING THE TIME DURING WHICH THE WORKPIECE IS WORKED, MEANS FOR DETECTING THE THERMO-POTENTIAL DEVELOPED ACROSS A THERMOJUNCTION FORMED BY THE ENGAGING SURFACES OF THE WORKING TOOL AND THE WORKPIECE DURING THE WORKING OF THE WORKPIECE, SENSING CIRCUIT MEANS FOR APPLYING THE THERMO-POTENTIAL DEVELOPED ACROSS SAID THERMOJUNCTION AND DETECTED BY SAID DETECTING MEANS TO SAID RECORDER TO INDICATE THE TIME DURING WHICH THE WORKPIECE IS WORKED, AND MEANS CONNECTED BETWEEN SAID DETECTING MEANS AND SAID RECORDER FOR AMPLIFYING SAID THERMO-POTENTIAL.
References Cited (Backward Citations)
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US2314753A
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US2423479A
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US2946646A
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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) | 1966-04-08 | 1966-10-08 | 1967-04-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-04-08 | 1970-10-08 | 1971-04-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-04-08 | 1974-10-08 | 1975-04-09 | $7700.00 | Window Closed / Lapsed |