Manuel D Mills from 2808 Delano Ave, Midland, TX 79701, Phone: 432 689-3086

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Pumpjack Dynamometer And Method
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US Patent:

6409476, Jun 25, 2002
Filed:

Dec 22, 2000
Appl. No.:

09/747831
Inventors:

Manuel D. Mills - Midland TX
Assignee:

DJAX Corporation - Midland TX
International Classification:

F04B 4900
US Classification:

417 18, 417 12
Abstract:

A dynamometer readout ( ) and method is disclosed for obtaining dynamometer information ( ) related to pumpjacks ( ). For this purpose, a change of pivotal direction of the walking beam ( ) may be detected by processor ( ) utilizing an encoder component ( ) with spaced slots ( ) therein and light signal devices ( ) positioned to have a spacing different from that of the spacing of the slots ( ). Software techniques filter out effects of stray mechanical vibrations. An infrared transceiver ( ) of a preferred embodiment includes a radio frequency carrier generator ( ) and modulator ( ) that produces an infrared signal receivable by a low cost consumer radio receiver. The radio frequency modulation technique for infrared signals ( ) and related filtering ( ) condition formatted infrared signals for utilization in daylight and through a car window for drive-by downloading of data to second computer ( ). A sensor ( ) may be substituted for the encoder. A sensor ( ) may include a moveable light interrupter, such as a ball ( ) or a bubble ( ), moveably disposed within the sensor.

Fluid Level Control System For Progressive Cavity Pump
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US Patent:

7314349, Jan 1, 2008
Filed:

Apr 26, 2004
Appl. No.:

10/831054
Inventors:

Manuel D. Mills - Midland TX, US
Assignee:

Djax Corporation - Midland TX
International Classification:

F04B 49/06
US Classification:

417 42, 417 441, 417 53
Abstract:

A control system controls a progressive cavity pump driven by a rod. The rod is powered by a prime mover, such as a variable speed drive. A proximity sensor outputs signals responsive to rotational positioning of the rod. A controller receives the signals and computes a time interval between selected signals corresponding to a selected number of rod rotations. The controller references a data set, compares the computed time interval with the data set, and selectively increases, decreases, or cycles power to the prime mover in response thereto, thereby controlling the fluid level within the well.

Fluid Level Control System
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US Patent:

7316542, Jan 8, 2008
Filed:

Jul 9, 2004
Appl. No.:

10/888394
Inventors:

Manuel D. Mills - Midland TX, US
Assignee:

DJAX Corporation - Midland TX
International Classification:

F04B 49/06
US Classification:

417 42, 417 441, 417 53
Abstract:

A control system governs fluid level in a well system including a pump positioned downhole for pumping fluid upward through a tubular, a rod positioned within the tubular for driving the pump, a prime mover, and a pumpjack to transmit power from the prime mover to the rod to reciprocate the rod. A sensor senses a position of the rod or a member of the pumpjack and outputting signals in response thereto. A controller receives the signals and computes a plurality of time intervals, each time interval being between signals and occurring during at least a portion of an upstroke of the rod. The controller selectively decreases power output from the prime mover in response to an increase in the computed time interval.

Book Holder
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US Patent:

20090189388, Jul 30, 2009
Filed:

Jan 29, 2008
Appl. No.:

12/011687
Inventors:

Manuel D. Mills - Midland TX, US
International Classification:

B42D 3/16
US Classification:

281 45
Abstract:

An adjustable book holder includes a support plate for supporting an open book, and one or more rails each extendable from a side of the support plate for engaging an open book having a width greater than the width of the support plate. An elastic band extends from one of the rails, across the open book, and is removably engaged with the opposing rail or with an opposing side of the support plate. Suction cups , may be used for supporting the book holder, and a flexible chain may be adjusted to alter the inclination of the support plate with respect to a rear brace.

Apparatus For Controlling A Pumpjack Prime Mover
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US Patent:

46319549, Dec 30, 1986
Filed:

Jul 25, 1984
Appl. No.:

6/634544
Inventors:

Manuel D. Mills - Midland TX
International Classification:

F04B 4900
E21B 4400
US Classification:

73151
Abstract:

An improved pump control having a device for measuring relative movement between structural components of a pumpjack unit, and converting the movement into a signal which varies according to the magnitude of the movement. The signal is divided into an upstroke and downstroke component so that during one cycle of the pumping operation, the downstroke part of the signal can be analyzed. A selected part of the downstroke signal can be used to indicate a pump-off condition. The entire signal can also be treated to provide a plot having characteristics similar to a dynamometer card. The disclosure further sets forth a motion sensor which measures the characteristics of the motion induced into the pumpjack structure and provides a signal which can be used to shut-in the well each time a pump-off condition is reached by the bottom hole pump.

Monitoring Pump Stroke For Minimizing Pump-Off State
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US Patent:

54584663, Oct 17, 1995
Filed:

Oct 22, 1993
Appl. No.:

8/139819
Inventors:

Manuel D. Mills - Midland TX
International Classification:

F04B 4900
US Classification:

417 12
Abstract:

Fluid pounding in a pumpjack is minimized by dictating the length of the run cycles of the pumpjack. The pumpjack is first allowed to pump down until a fluid pounding state is reached, at which time it is shut down. The time it takes to reach this state is monitored. Using the length of time it took to reach the fluid pounding state, the pumpjack is set to run a predetermined number of dictated cycles for a length of time which is 70-99% of the time it took to reach the fluid pounding state. During these predetermined number of cycles if the pumpjack again reaches a fluid pounding state the time is reset based on this new information, and the number of predetermined number of dictated cycles left is finished. After the predetermined number of cycles has finished, the process is repeated by allowing the pumpjack to run to a fluid pounding state.

Pumpjack Dynamometer And Method
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US Patent:

61766828, Jan 23, 2001
Filed:

Aug 6, 1999
Appl. No.:

9/369792
Inventors:

Manuel D. Mills - Midland TX
International Classification:

F04B 4900
US Classification:

417 18
Abstract:

A dynamometer readout (42, 46) and method is disclosed for obtaining dynamometer information (110) related to pumpjacks (10). For this purpose, a change of pivotal direction of the walking beam (18) may be detected by processor (82) utilizing an encoder component (60) with spaced slots (64) therein and light signal devices (68, 70, 72, 74) positioned to have a spacing different from that of the spacing of the slots (64). Software techniques filter out effects of stray mechanical vibrations. An infrared transceiver (46, 50, 100) of a preferred embodiment includes a radio frequency carrier generator (90) and modulator (88) that produces an infrared signal receivable by a low cost consumer radio receiver. The radio frequency modulation technique for infrared signals (96) and related filtering (98, 102, 104) condition formatted infrared signals for utilization in daylight and through a car window for drive-by downloading of data to second computer (108).