Joseph Edward Kachnik

42793378, Jul 21, 1981

Sep 10, 1979

6/073905

Joseph E. Kachnik - Fort Worth TX

B65G 3700

198472

A conveyor system for conveying trays containing articles has a positive drive for enabling extreme angles of inclination of the conveyor system. The conveyor system includes a plurality of spaced apart drive rollers, each having an annular row of teeth. The tray has a row of teeth that engages the teeth of the drive rollers. A drive system, which is preferably a belt having teeth on its outer surface, rotates the drive rollers. The drive rollers have cylindrical portions on each side of the teeth of lesser diameter than the teeth. The teeth on the bottom of the tray are located in a recessed channel, with flat surfaces on either side that engage the cylindrical portions. This enables the tray to be used also on a conventional conveyor system.

46542663, Mar 31, 1987

Dec 24, 1985

6/813574

Joseph L. Kachnik - Fort Worth TX

E21B 4326

428403

What is disclosed is a method of forming a high-strength proppant that resists the deleterious effects of high temperature saline environments characterized by the steps of forming a plurality of particles of propping agent; and coating particles with a thin high-strength covering in a fluidized bed employing chemical vapor deposition to deposit a coating substantially uniformly over all the exposed surfaces of the particles to increase durability of the particles, as well as their strength and resistance to the deleterious effects of hot saline environment. Preferably, each particle has at least one passageway formed directly therethrough for increased permeability once deposited.

44624662, Jul 31, 1984

Mar 29, 1982

6/362960

Joseph E. Kachnik - Fort Worth TX

E21B 43267

166280

A method of propping fractures in a subterranean formation employing high-strength particles of propping agent having at least one passageway formed through each of the particles and having the usual high compressive strength and particle size range and density to enable emplacement in the fracture by hydraulic transport. Each particle has its at least one passageway formed substantially directly therethrough for increased permeability to flow of fluids from the subterranean formation. Particles may have any of the shapes that are commonly and economically available.