ALLAN L FLANAGAN
Radio and Television Technicians in South Attleboro, MA

4704676, Nov 3, 1987

Mar 24, 1986

6/842979

Allan L. Flanagan - Attleboro MA
David A. Richardson - East Greenwich RI

The Foxboro Company - Foxboro MA

G06F 1546

364146

Reading values, setting values and setting configuration options within a complex programmable apparatus is simplified, by chaining all user interaction points into a single path, cross linking portions of the main path into subpaths and providing keys that step the user according to his selection along the main path, along the subpaths, and between the subpaths. A two part display indicating the general and specific positions clarify the locations and the options available.

4658348, Apr 14, 1987

Aug 12, 1985

6/764271

Allan L. Flanagan - Attleboro MA
David A. Richardson - East Greenwich RI

The Foxboro Company - Foxboro MA

G06F 1546

364146

Reading values, setting values and setting configuration options within a complex programmable controller is simplified, by chaining all user interaction points into a single path, cross linking portions of the main path into subpaths and providing keys that step the user according to his selection along the main path, along the subpaths, and between the subpaths. A two part display indicating the general and specific positions clarify the locations and the options available.

4423412, Dec 27, 1983

Sep 30, 1981

6/306955

Allan L. Flanagan - Attleboro MA

The Foxboro Company - Foxboro MA

G08B 2100

340661

A compact ribbon-indicator and chart-recorder instrument for use in process control systems adapted to indicate and simultaneously record the values of up to three independent process variables. The motive power for each pen/indicator drive system is supplied from a corresponding relatively high-speed stepping motor. Each such motor is servo-controlled by a feedback circuit including a potentiometer coupled to the pen drive cable for developing a d-c feedback signal to be compared with the d-c measurement signal. The system is arranged to actuate the motor immediately upon development of a deviation signal outside of a fixed dead-band, but the extent of initial motor movement is limited to a pre-set small amount (preferably one step). If the deviation signal still is outside of the dead-band after a predetermined period of time, a clock pulse oscillator is turned on to actuate the motor at a relatively rapid rate until the deviation signal returns to the dead-band. The instrument also includes special limit circuitry for preventing motor activity when the pen has been driven to either end of its full-scale stroke.

3952293, Apr 20, 1976

Jun 24, 1974

5/482041

Allan L. Flanagan - Attleboro MA
Richard Driscoll - Mansfield MA
David A. Richardson - Sheldonville MA

The Foxboro Company - Foxboro MA

G08B 2900

340213Q

A deviation meter, responding to a deviation signal, is mounted on a turntable which rotates in response to a set point adjustment. Rotation of the turntable maintains the null position of the deviation meter pointer at a scale position corresponding to a set point value, so that a direct readout of the actual measurement value is provided.