Ernest Thomas Williams

US Patent:

6337058, Jan 8, 2002

Filed:

Sep 16, 1996

Appl. No.:

08/714638

Inventors:

Charles A. Williams - Summerville SC
Ernest H. Williams - Summerville SC

Assignee:

EC Williams Inc. - Summerville SC

International Classification:

C22B 2620

US Classification:

423168, 4235663, 423638, 422137, 422229, 422233

Abstract:

A process and apparatus for producing calcium sulfide is provided comprising a container housing one or more drums, each drum having a substantially horizontal longitudinal center axis and containing one or more screw conveyors therein. Multiple drums are connected by passageways, and passages are provided for passing material into and out of the container and the drum(s). A heater is provided for supplying heat to the material within the drum(s). The process comprises passing the reactants, gypsum and charcoal, into the container and drum(s), heating the reactants within the drum(s) thereby initiating a chemical reaction converting reactants to products (including calcium sulfide), moving the reactants and products substantially horizontally in the drum(s) through the use of the screw conveyor(s) contained therein, and passing the products out of the drum(s) and the container.

US Patent:

6564878, May 20, 2003

Filed:

May 31, 2001

Appl. No.:

09/871105

Inventors:

Ernest H. Williams - Summerville SC 29485
Charles A. Williams - Summerville SC 29485

International Classification:

A01B 4502

US Classification:

172 495

Abstract:

A rotatable tiller apparatus for use in mixing soils in situ, including: (a) a vertically oriented rotatable drive shaft, connected to and driven by a motor external to the apparatus; (b) a drive assembly connected to the drive shaft; (c) at least two vertically oriented, rotatable cutting shafts connected to the drive shaft through the drive assembly and at least one support plate; (d) a sprocket assembly within the drive assembly connected to the drive shaft, the sprocket assembly comprising at least one rotatable sprocket for each cutting shaft; (e) a device for rotating the sprockets in a direction counter to the rotation of the drive shaft, the device being driven by the motor, the sprockets being rotatable in the same direction and at the same speed as one another; and (f) at least two tine assemblies arranged vertically in tandem along each of the cutting shafts, each tine assembly including at least one tine with at least one blade at its end.