Dale H Chidester

US Patent:

48927074, Jan 9, 1990

Filed:

Jul 25, 1983

Appl. No.:

6/517189

Inventors:

Gerald W. Stockton - Morrisville PA
Dale H. Chidester - Levittown PA
Susan J. Ehrlich - Hamilton Township, Mercer County NJ

Assignee:

American Cyanamid Company - Stamford CT

International Classification:

G01N 2520

US Classification:

422 51

Abstract:

A calorimeter for measuring the thermodynamic and kinetic characteristics of chemical reactions, microbial fermentations, and other processes of industrial importance is described. The present invention also relates to a method of operation of this apparatus.

US Patent:

49634992, Oct 16, 1990

Filed:

Feb 24, 1989

Appl. No.:

7/315363

Inventors:

Gerald W. Stockton - Morrisville PA
Dale H. Chidester - Levittown PA
Susan J. Ehrlich - Hamilton Township, Mercer County NJ

Assignee:

American Cyanamid Company - Stamford CT

International Classification:

G01N 2520

US Classification:

436147

Abstract:

A calorimeter for measuring the thermodynamic and kinetic characteristics of chemical reactions, microbial fermentations, and other processes of industrial importance is described. The present invention also relates to a method of operation of this apparatus.

US Patent:

45174733, May 14, 1985

Filed:

Jun 1, 1982

Appl. No.:

6/383633

Inventors:

Dale H. Chidester - Levittown PA

Assignee:

American Cyanamid Company - Stamford CT

International Classification:

H03K 1300
H03K 1718
H03K 17296

US Classification:

307269

Abstract:

In order to control the auto-sampler in a device such as a gas chromatograph in which data is sampled by an analog-to-digital converter, the converter providing outputs indicative of its status and having one state when the converter is enabled, another state when the converter is disabled and pulsing between said states when the converter is acquiring data, an automatic injection control device is provided which: counts the sampling pulses from the converter to insure that a full conversion cycle has been completed and sets a first signal to so indicate; through a retriggerable, one-shot multivibrator insures that the last of the sampling pulses is completed and provides a second signal accordingly; and adds these two signals with the status signal indicating that the converter is in a condition to receive data to provide a trigger signal for use by the auto-sampler. Further, a method for generating triggering signals to initiate such event is presented.