US4527661A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Adaptive control system for machine tool or the like
Assignee: Kearney and Trecker Corp
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Filing: 1981-10-29
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Granted: 1985-07-09
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Expires: 2001-10-29
Abstract
Abstract An adaptive control system for a machine tool or the like includes a temperature sensor for measuring spindle bearing temperature and two pairs of thrust sensors for measuring radial and axial spindle deflection. Data processing apparatus, typically comprised of a microcomputer, is coupled to the temperature and thrust sensors and regulates the percentage of oil in the oil-air mixture lubrication mist sprayed on bearing contact surfaces in accordance with bearing temperature. The microcomputer simultaneously regulates the spindle bearing preload and spindle axis feedrate in accordance with radial and axial spindle thrust, thereby assuring optimum machine tool performance.
Inventors
- 👤 Richard Johnstone
- 👤 Edward E. Kirkham
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 15:59
CPC Classifications
F; F16; F16N; F16N29/00; F16N29/02; B; B23; B23Q; B23Q11/00; B23Q11/12; B23Q11/121; B23Q15/00; B23Q15/007; B23Q15/12; B23Q15/18; F01; F01M; F01M5/00; F16C; F16C19/00; F16C19/52; F16C19/525; F16C25/00; F16C25/06; F16C25/08; F16C33/00; F16C33/30; F16C33/66; F16C33/6637; F16C33/6659; F16C33/667; F16C33/6674; F16N7/00; F16N7/30; F16N7/32; F16N7/34; F16C2322/00; F16C2322/39; G; G05; G05B; G05B2219/00; G05B2219/30; G05B2219/37; G05B2219/37344; G05B2219/37431; G05B2219/49; G05B2219/49043; G05B2219/49044
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
181 words
In a lubricating system for lubricating a mechanism with an air and lubricant mist mixture, sensing means for mounting in a position to sense the temperature of the mechanism to be lubricated and to continuously produce a signal representing the sensed temperature, a source of pressurized lubricant, a source of pressurized air, an atomizer for applying said mist mixture to said mechanism connected to receive lubricant from said lubricant source from a first line and connected to receive air from said air source from a second line, a lubricant valve in said first line, an air valve in said second line, said valves controllable to enable the percent volume of lubricant in said mist mixture to vary over a range of percentages, and an automatic and continuous control means for controlling the lubricating of the mechanism by determining from said sensing means signal the proper percent volume of lubricant in said mist mixture necessary to maintain said mechanism at a minimum temperature and adjusting said lubricant and air valves to achieve said proper percent volume of lubricant in said mist mixture.
Claim 2
Dependent Claim
181 words
In a lubricating system for lubricating a mechanism with an air and lubricant mist mixture, sensing means for mounting in a position to sense the temperature of the mechanism to be lubricated and to continuously produce a signal representing the sensed temperature, a source of pressurized lubricant, a source of pressurized air, an atomizer for applying said mist mixture to said mechanism connected to receive lubricant from said lubricant source from a first line and connected to receive air from said air source from a second line, a lubricant valve in said first line, an air valve in said second line, said valves controllable to enable the percent volume of lubricant in said mist mixture to vary over a range of percentages, and an automatic and continuous control means for controlling the lubricating of the mechanism by determining from said sensing means signal the proper percent volume of lubricant in said mist mixture necessary to maintain said mechanism at a minimum temperature and adjusting said lubricant and air valves to achieve said proper percent volume of lubricant in said mist mixture.
Claim 3
Dependent Claim
14 words
A lubricating system acording to claim 1 wherein said control means includes a computer.
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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) | 1988-07-08 | 1989-01-07 | 1989-07-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1992-07-08 | 1993-01-07 | 1993-07-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1996-07-08 | 1997-01-07 | 1997-07-09 | $7700.00 | Window Closed / Lapsed |