Jerry Edward Francis
Accountancy at Hampden Ave, Denver, CO

6016920, Jan 25, 2000

Feb 3, 1997

8/792406

Joseph Karl Brauch - Aurora CO
Jerry Boyd Francis - Aurora CO
Charles Lonnie Meurer - Golden CO
Douglas Lee Meurer - Denver CO

Meurer Industries, Inc. - Golden CO

B07B 150

209379

A programmed bar screen cleaner removes debris from a screen positioned in a channel to prevent the flow of the debris to a liquid treatment. A rake has tines for engaging the screen to move the debris toward and past an upper end of the screen to remove the debris from the screen. Automatic and controllable raking operations are provided to handle the situation in which there is debris jammed in the screen. The jammed debris resists the movement of the rake along the screen, which is sensed via rake motor overloaded, indicated by motor current in excess of a limit. The existence of a jammed rake causes positive release of the rake from the face of the bars, and further movement of the rake is controlled according to the nature of the problem which caused the jamming. If the rake jams during a raking stroke, the jam is sensed, and according to the nature of the problem, the rake may be positively removed from the face of the bars, and then either returned to an original position at the beginning of the stroke, or advanced in the direction of the original stroke and then returned to the face for completion of the stroke, or advanced in the direction of the original stroke, then returned to the face, and then moved toward the original position at the beginning of the stroke to remove the cause of the jamming from the face of the bars.

6129215, Oct 10, 2000

Jan 19, 2000

9/487744

Joseph Karl Brauch - Aurora CO
Jerry Boyd Francis - Aurora CO
Charles Lonnie Meurer - Golden CO
Douglas Lee Meurer - Denver CO

Meurer Industries, Inc. - Golden CO

B07B 150

209379

A programmed bar screen cleaner removes debris from a screen positioned in a channel to prevent the flow of the debris to a liquid treatment. A rake has tines for engaging the screen to move the debris toward and past an upper end of the screen to remove the debris from the screen. Automatic and controllable raking operations are provided to handle the situation in which there is debris jammed in the screen. The jammed debris resists the movement of the rake along the screen, which is sensed via rake motor overloaded, indicated by motor current in excess of a limit. The existence of a jammed rake causes positive release of the rake from the face of the bars, and further movement of the rake is controlled according to the nature of the problem which caused the jamming. If the rake jams during a raking stroke, the jam is sensed, and according to the nature of the problem, the rake may be positively removed from the face of the bars, and then either returned to an original position at the beginning of the stroke, or advanced in the direction of the original stroke and then returned to the face for completion of the stroke, or advanced in the direction of the original stroke, then returned to the face, and then moved toward the original position at the beginning of the stroke to remove the cause of the jamming from the face of the bars.

5914049, Jun 22, 1999

Sep 19, 1996

8/724271

Joseph Karl Brauch - Aurora CO
Ronald Eddie Dollar - Arvada CO
Jerry Boyd Francis - Aurora CO
Christopher Dale Hanson - Arvada CO
Charles Lonnie Meurer - Golden CO

Meurer Research, Inc. - Golden CO

B01D 2102

210803

A header conduit provides an elongated passageway through which waste liquid and sludge ("waste") are guided and enter the conduit along a path that is tangential to at least the inner surface of the conduit which such incoming waste first contacts. When the conduit has an inner surface of circular cross-section, the passageway is elongated enough that the incoming waste enters the conduit along a path tangential to the circular surface. To better assure axial flow of the waste in the conduit to an outlet, the passageway provides both the tangential flow and is at an acute angle to the longitudinal axis of the conduit. The incoming waste is thereby provided with an axial component. In this manner, the passageway assures that the energy and momentum of the incoming waste is helical in direction. The waste previously admitted into the header conduit is urged by the newly entering waste to continue to flow helically in the conduit.