Ronald P Cruea

US Patent:

40711935, Jan 31, 1978

Filed:

Jul 19, 1976

Appl. No.:

5/706583

Inventors:

Arthur J. Sternby - Middletown OH
Ronald D. Cruea - Carlisle OH

Assignee:

The Black Clawson Company - Middletown OH

International Classification:

B05B 126

US Classification:

239 11

Abstract:

Flow spreading method and apparatus particularly adapted for use with a generally parabolic, slotted screening or dewatering surface, which redimensions the cross-sectional shape of a flow of material from a relatively narrow width, deep depth flow to a relatively shallow depth, wide width flow approximately equal to the width of the surface to which the flow is delivered. The apparatus includes a curved plate preferably having a substantially constant radius of curvature and a conduit which directs the material against the curved plate non-tangentially with respect to its surface to induce a smooth but rapid redirection and hence, redimensioning of the flow cross-sectional configuration. The conduit feeding the material may have at least its terminal portion constructed of a flexible material which allows the conduit outlet to be pressed against the surface of the curved plate and deformed somewhat to enhance flow spreading while still permitting the passage of relatively large objects through the conduit.

US Patent:

43990282, Aug 16, 1983

Filed:

Jun 14, 1982

Appl. No.:

6/388387

Inventors:

Gregory D. Kile - Cincinnati OH
Larry D. Markham - Middletown OH
Ronald D. Cruea - Franklin OH
Derald R. Hatton - Middletown OH

Assignee:

The Black Clawson Company - Middletown OH

International Classification:

C02F 124

US Classification:

209164

Abstract:

A froth flotation apparatus for elimination of solid particle impurities contained within a liquid includes a vessel defining a flotation cell which includes an upstanding foam discharge conduit, an inlet conduit communicating with the vessel such that fluid flowing through the inlet conduit and into the vessel moves in a vortical fashion within the vessel, a skimmer, and a sparger. The skimmer consists of a generally cylindrical roller which is rotatably mounted between the discharge conduit and a side wall of the vessel and is buoyant so that it floats on the surface of the fluid within the vessel such that it is rotated by the vortical movement of the fluid within the vessel to prevent buildup of foam and maintain the motion of the fluid within the vessel. The sparger includes a substantially cylindrical porous element mounted on a tubular shaft which is rotatably mounted within the inlet conduit and driven by a motor. Compressed air is forced through the porous element to aerate the fluid entering the vessel.

US Patent:

40973824, Jun 27, 1978

Filed:

Mar 28, 1977

Appl. No.:

5/781729

Inventors:

Ronald DeWayne Cruea - Carlisle OH

Assignee:

The Black Clawson Company - Middletown OH

International Classification:

B01D 3528

US Classification:

210456

Abstract:

Screening apparatus that provides improved dewatering of liquid slurries includes a plurality of spaced, ridge-shaped flow disruption elements secured to the vertical side walls of the screening apparatus and a plurality of deflector elements disposed along the back convex surface of the screen extending across substantially the entire width of the screen parallel to and in engagement with bar-shaped members forming the screen. The flow disruption elements cause the thick slurry which otherwise sluices along the side guide surfaces of the screening device without being completely subjected to the screen action to be directed or diverted inwardly towards the active surface of the screen. The deflector elements cause the thruput water flowing down the back convex side of the screen which has passed through the screen to be diverted and captured in a container underneath the screen without running the entire length of the screen and tending to inhibit the water from passing through the screen on the downstream side of the deflector.