John R Ridgely, 601333 Vega Way, San Luis Obispo, CA 93405

7634328, Dec 15, 2009

Jan 20, 2004

10/760437

Masoud Medizade - San Luis Obispo CA, US
John Robert Ridgely - Los Osos CA, US

G05D 7/00
G01N 15/08
G01F 1/00
G06F 11/00

700282, 700 14, 700 28, 702 12, 702 45, 702188, 137 2

An arrangement which utilizes an inexpensive flap valve/flow transducer combination and a simple local supervisory control system to monitor and/or control the operation of a positive displacement pump used to extract petroleum from geologic strata. The local supervisory control system controls the operation of an electric motor which drives a reciprocating positive displacement pump so as to maximize the volume of petroleum extracted from the well per pump stroke while minimizing electricity usage and pump-off situations. By reducing the electrical demand and pump-off (i. e. , “pounding” or “fluid pound”) occurrences, operating and maintenance costs should be reduced sufficiently to allow petroleum recovery from marginally productive petroleum fields. The local supervisory control system includes one or more applications to at least collect flow signal data generated during operation of the positive displacement pump. No flow, low flow and flow duration are easily evaluated using the flap valve/flow transducer arrangement.

7662004, Feb 16, 2010

Nov 14, 2007

11/985404

Philip A. March - El Dorado Hills CA, US
John R. Ridgely - Los Osos CA, US
Sherwood P. Gibson - Orangevale CA, US
Peter R. March - Rocklin CA, US

B63H 1/36

440 14, 440 26, 440 32

A pair of foils are pivotably coupled to a nacelle. The nacelle is pivotably coupled to a mast extending down from to a frame and below a water surface. A push rod oscillates, causing the nacelle to experience a heaving motion, in turn causing the foils to flap up and down. The push rod is driven by a power plant such as a human rider. Angles of attack for the foils are actively controlled to optimize lift and propulsion forces provided by the foils to cause the water craft to move over the water. A steering fin is also provided for heading control of the water craft. A control system for separate angles of attack for the foil sends appropriate information to servo motors which cause the foils to rotate relative to the nacelle to achieve optimal angles of attack relative to the particular position of the nacelle at any given moment.

2010033, Dec 30, 2010

Dec 14, 2009

12/636781

MASON MEDIZADE - San Luis Obispo CA, US
John Ridgely - Los Osos CA, US

G05D 7/00

700282, 702 12

An arrangement which utilizes an inexpensive flap valve/flow transducer combination and a simple local supervisory control system to monitor and/or control the operation of a positive displacement pump used to extract petroleum from geologic strata. The local supervisory control system controls the operation of an electric motor which drives a reciprocating positive displacement pump so as to maximize the volume of petroleum extracted from the well per pump stroke while minimizing electricity usage and pump-off situations. By reducing the electrical demand and pump-off (i.e., “pounding” or “fluid pound”) occurrences, operating and maintenance costs should be reduced sufficiently to allow petroleum recovery from marginally productive petroleum fields. The local supervisory control system includes one or more applications to at least collect flow signal data generated during operation of the positive displacement pump. No flow, low flow and flow duration are easily evaluated using the flap valve/flow transducer arrangement.