1
Bartlett Peter G, Henry Donald E, Murrell Thomas: Process control computer. Struthers Dunn, September 25, 1973: US3761882 (13 worldwide citation)

A solid state process control computer for continually controlling a plurality of outputs in dependence upon the conditions of a plurality of continually variable input parameters. The controller includes a memory capable of storing a large number of multi-bit words each comprising both an address a ...


2
Bartlett Peter G, Henry Donald E: Contact monitoring system. Struthers Dunn, December 7, 1971: US3626248 (13 worldwide citation)

Circuit means for monitoring the conditions of a plurality of contacts, thereby making it possible to determine at each instant which contact is open and which is closed. The output of each contact monitoring circuit is electrically isolated from all of the monitored contacts and also from any circu ...


3
Bartlett Peter G, Henry Donald E: Process control computer. Struthers Dunn, Hall & Myers, April 29, 1975: US3881172 (12 worldwide citation)

A solid state process control computer for continually controlling a plurality of outputs in dependence upon the conditions of a plurality of continually variable input parameters. The controller includes a memory capable of storing a large number of multi-bit words each comprising both an address a ...


4
Henry Donald E: Method of preparing cells for inspection. Cesari Robert A, McKenna John F, Kehoe Andrew F, September 9, 1975: US3904781 (11 worldwide citation)

A process for preparing cells for microscope examination whereby a suspension of the cells is agitated by convection currents caused by the cooling effect of the evaporation of a suspension medium. The process is advantageously carried out in a shallow well formed of a microscopic slide bottom membe ...


5
Vandemore James J, Henry Donald E: Solid-state process control module with indicia to associate output signal with terminal. E W Bliss Company, October 16, 1973: US3766550 (11 worldwide citation)

There is provided a process control system including a plurality of functional modules for sequencing a plurality of operations of a machine, such as a plastic molding machine, wherein the functional modules include a static electrical control circuit. The static control circuit is comprised of an i ...


6
Bartlett Peter G, Henry Donald E, Riceman Kenton L: Cabinet for interchangeable circuit boards. Struthers Dunn, October 9, 1973: US3764857 (10 worldwide citation)

The disclosure relates to a cabinet with replaceable and removable circuit boards. The cabinet is provided with a plurality of circuit boards, each of the circuits being provided with indicating means for identifying the input for and output from the circuit. Means are provided on the interior of th ...


7
Henry Donald E: Process control system. Gulf & Western, January 4, 1972: US3632251 (9 worldwide citation)

There is provided a process control system for controlling the position of a movable machine member, for example, the movable die member of a plastic molding machine, comprising an actuatable means, such as a solenoid-controlled valve system, for upon energization driving the movable member; circuit ...


8
Bartlett Peter G, Henry Donald E: Process control system. Struthers Dunn, March 21, 1972: US3651477 (8 worldwide citation)

The present invention provides a process control system which minimizes the effect of noise on the system and also minimizes the amount of noise produced by the system. This is accomplished by properly timing all operations, both sensing and control, so as to both minimize the possibility of a spuri ...


9
Henry Donald E: Means for preparing cells for inspection. Kehoe Andrew F, Cesari Robert A, McKenna John F, August 12, 1975: US3899610 (6 worldwide citation)

A process, and apparatus useful in carrying out the process, of the type wherein a suspension of cells is agitated by convection currents caused by the cooling effect of an evaporating liquid suspension medium. The process is advantageously carried out in a shallow well with wires or filaments or ot ...


10
Henry Donald E: Zero swithching network for a triac swithcing circuit. Gulf & Western, January 12, 1971: US3555292 (6 worldwide citation)

There is provided a switching circuit for switching an alternating voltage source across a load including switch means, such as a triac, having a first, second, and control electrode, and exhibiting the characteristic of presenting a low impedance to current flow from the voltage source to the load ...