1
Merrill J Reynolds, Ralph W Disney: Situ coal combustion heat recovery method. Head Johnson & Chafin, May 16, 1978: US04089373 (104 worldwide citation)

A method for recovery of heat generated by the combustion of coal in situ within coal seams in the earth. Three embodiments are described: one, in which the coal seam crops out and into which can be drilled and inserted a pipe, through the coal seam, to a central point, where it is joined with a ver ...


2
John Smith Zink, Hershel E Goodnight: Low nox burner. John Zink Company, Head Johnson & Chafin, January 25, 1977: US04004875 (82 worldwide citation)

An improved burner for both liquid and gaseous fuels in which the combustion air is divided into at least two parts, comprising primary and secondary air. The primary air, which is insufficient to completely burn the fuel, creates a flame zone in which there is a deficiency of air, which produces qu ...


3
George F Jackson: Centrifugal flotation separator. Head Johnson & Chafin, June 13, 1978: US04094783 (77 worldwide citation)

A multi-stage, recycling, centrifugal, flotation separator system, comprising a circular cylindrical vessel with vertical axis, having a horizontal tray positioned inside the vessel near the top, the tray having an axial opening. Means for introducing air under pressure into the vessel at the top th ...


4
Paul W Marshall, Darrell F Beaver, Lawrence M Thomas: Container lid with integral removable eating utensil. Head Johnson & Chafin, May 11, 1976: US03955742 (61 worldwide citation)

A container for edible material including an upright open top vessel having a circumferential upper lip and a lid of generally flat, thin, impervious material having the outer edge configured to removably sealably engage the vessel circumferential upper lip and having an eating utensil, such as a sp ...


5
Dwight A Vance: Apparatus to indicate when a patient has evacuated a bed or demonstrates a restless condition. Head Johnson & Chafin, December 18, 1979: US04179692 (56 worldwide citation)

A switch placed in a bed under a patient, includes contacts which can make or break a connection to a signal processing circuit. The signal processing circuit charges a capacitor at a selected rate, when the switch is in a first state and discharges the capacitor when the switch is in a second state ...


6
James C McGill, William N Scott: Adsorption-absorption vapor recovery system. HT Management Company, Head Johnson & Chafin, January 3, 1978: US04066423 (46 worldwide citation)

A process for the recovery of light mixed hydrocarbon vapors from an air-hydrocarbon mixture expelled as a result of storage breathing or loading of a vented hydrocarbon vessel. The hydrocarbon vapor components are adsorbed from the mixture, thus permitting venting of the substantially hydrocarbon f ...


7
Doug Fitzpatrick: Method and system for controlling well bore fluid level relative to a down hole pump. Basic Sciences, Head Johnson & Chafin, November 14, 1978: US04125163 (42 worldwide citation)

A system for maintaining well bore fluid level to increase oil well production. The fluid level is monitored by a down hole pressure sensing device which relays the fluid level information to the surface by acoustical transmissions where, based on the information received, the speed of the pumping i ...


8
Kenneth K Clark: Gauge for remotely indicating the pressure of a subterranean formation. Geophysical Research Corporation, Head Johnson & Chafin, July 13, 1976: US03968694 (39 worldwide citation)

A gauge for remotely indicating the pressure in a subterranean formation penetrated by a bore hole, including a tubular closed housing, the lower end of the closed housing forming an integral diaphragm which is subjected to the pressure of the subterranean formation, the housing having an internal r ...


9
Joseph C Halpine: Piston detector switch. Head Johnson & Chafin, September 18, 1979: US04168413 (38 worldwide citation)

A piston detector switch adapted to be positioned on a pipe having an orifice in the wall thereof which may be briefly described as comprising a plate securable to the pipe having a bore extending therethrough in open communication with the pipe orifice, a valve seat positioned in the bore adjacent ...


10
Phyllis L Gaspar: Childs play seat apparatus. Head Johnson & Chafin, November 8, 1977: US04057244 (37 worldwide citation)

A child's play seat comprising a support frame structure having a play area including an open box member having an upstanding wall secured thereto and a relatively deep removable open tray disposed in the box, and a seat member secured to the frame structure for supporting the child while using the ...



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