Patent AT201039B successfully refreshed from Google Patents.
EP0321920A2
Expired / Lapsed
EP
⏱️ 0.0 years remaining
Centrifuge control system having dual processors
Assignee: EIDP Inc
•
Filing: 1988-12-20
•
Granted: —
•
Expires: 2008-12-20
Abstract
Abstract The present invention relates to control architecture for a centrifuge motor speed control system having dual processors. The processors are configured in a master-slave relationship for some predetermined subset of instrument control functions during the execution of which the slave operates under the direction of the master to effect that subset of control functions. However, each of the processors is independently responsive to a speed signal from a tachometer and is indepenently capable of controlling the additional instrument control function of conditionally coupling the motor to a source of energy.
Inventors
- 👤 Gerald Elroy Fries
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-10-29 22:22
CPC Classifications
H; H02; H02P; H02P5/00; H02P5/46; H02P5/50; B; B04; B04B; B04B9/00; B04B9/10
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
124 words
In a control system for a centrifuge instrument having a motor with a shaft and a source of energy for the motor, the motor being operative to rotate the shaft to a rotational speed, a tachometer operative to generate a signal representative of the actual rotational speed of the shaft, the system including a programmable controller operative to provide a predetermined set of instrument control functions including the function of conditionally coupling of the source to the motor, wherein the improvement comprises: the programmable controller having a first and a second processor therein, each of the processors being independently responsive to the speed signal from the tachometer and being independently capable of controlling the function of conditionally coupling of the source to the motor.
Claim 2
Dependent Claim
124 words
In a control system for a centrifuge instrument having a motor with a shaft and a source of energy for the motor, the motor being operative to rotate the shaft to a rotational speed, a tachometer operative to generate a signal representative of the actual rotational speed of the shaft, the system including a programmable controller operative to provide a predetermined set of instrument control functions including the function of conditionally coupling of the source to the motor, wherein the improvement comprises: the programmable controller having a first and a second processor therein, each of the processors being independently responsive to the speed signal from the tachometer and being independently capable of controlling the function of conditionally coupling of the source to the motor.
Claim 3
Dependent Claim
162 words
In a control system for a centrifuge instrument having a motor with a shaft and a source of energy for the motor, the motor being operative to rotate the shaft to a rotational speed, a tachometer operative to generate a signal representative of the actual rotational speed of the shaft, the system including a programmable controller operative to provide a predetermined set of instrument control functions including the function of conditionally coupling of the source to the motor, wherein the improvement comprises: the programmable controller having a first and a second processor therein, the processors being configured in a master-slave relationship for some predetermined subset of the instrument control functions during the execution of which the slave operates under the direction of the master to effect that subset of control functions, each of the processors being independently responsive to the speed signal from the tachometer and being independently capable of controlling the function of conditionally coupling of the source to the motor.
Claim 4
Dependent Claim
162 words
In a control system for a centrifuge instrument having a motor with a shaft and a source of energy for the motor, the motor being operative to rotate the shaft to a rotational speed, a tachometer operative to generate a signal representative of the actual rotational speed of the shaft, the system including a programmable controller operative to provide a predetermined set of instrument control functions including the function of conditionally coupling of the source to the motor, wherein the improvement comprises: the programmable controller having a first and a second processor therein, the processors being configured in a master-slave relationship for some predetermined subset of the instrument control functions during the execution of which the slave operates under the direction of the master to effect that subset of control functions, each of the processors being independently responsive to the speed signal from the tachometer and being independently capable of controlling the function of conditionally coupling of the source to the motor.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
Maintenance schedule is calculated for granted US utility patents.