Michael C Hartman

US Patent:

6380852, Apr 30, 2002

Filed:

Nov 2, 1999

Appl. No.:

09/432850

Inventors:

Michael G. Hartman - Kirkland WA
Jesse A. Dosher - Seattle WA

Assignee:

Quietech LLC - Kirkland WA

International Classification:

G08B 1900

US Classification:

340521, 340538, 340539, 34031008, 307116, 307140

Abstract:

Apparatus and a method for temporarily disabling the operation of a noise-producing electrical device or internal combustion engine upon detection of a predetermined awareness condition, such as an incoming telephone call, doorbell ring, security system alarm or other awareness condition. For disabling operation of an electrical device, the apparatus includes a command module and one or more switchable power receptacles that respond to a control signal from the command module, de-energizing the electrical device, when at least one of the predetermined awareness conditions is detected. Control signals are communicated to the switchable power receptacles via either a radio frequency signal, or by a modulated signal that is conveyed over an alternating current electrical power circuit to which the command module and switched power receptacle(s) are connected. For disabling operation of an engine, the apparatus includes a command module that sends a wireless signal to a shutdown module to control operation of the engines ignition or fuel systems, so that operation of the engine is disabled when the shutdown module is switched to a shutdown mode. Disabling operation of a noise-producing device enables a signal that is produced in conjunction with the awareness condition, such as a telephone or doorbell ring, to be more easily perceived.

US Patent:

20020153141, Oct 24, 2002

Filed:

Apr 19, 2001

Appl. No.:

09/838744

Inventors:

Michael Hartman - Kirkland WA, US
Eric Moe - Seattle WA, US
Robert Breidenthal - Seattle WA, US
Jesse Rehr - Seattle WA, US

International Classification:

E21B043/16

US Classification:

166/302000, 166/369000, 166/066400, 166/062000

Abstract:

The production rate, useful life and operating efficiency of electric submergible pumping systems (ESP) is improved by operating the system so that the motor is cooled by two passes of production. The two passes of production fluid are achieved by employing a shroud with the inlet at the opposite end of the production fluid intake or by installing the motor below the perforations that allow production fluids to enter a well. The motor is designed with an internal conduit through which the production fluids are pumped. Production fluids remove waste heat from the motor by passing in fluid contact with the exterior of the motor and again by passing through the internal conduit of the motor. The improved cooling permits the motor to be operated at a lower temperature improving life and efficiency, and/or to be operated at higher power at a similar temperature. Additionally, oversized and excess equipment is not required, further improving performance and economics for the user. In another aspect, the invention is a method of pumping fluids using a motor having vortex generators on its exterior surfaces or on the interior surfaces of a surrounding shroud, and a method for determining optimum well operating conditions.

US Patent:

20050217859, Oct 6, 2005

Filed:

Mar 11, 2002

Appl. No.:

10/471462

Inventors:

Michael Hartman - Kirkland WA, US
Eric Moe - Bainbridge Island WA, US
Robert Breidenthal - Seattle WA, US
Jesse Rehr - Seattle WA, US
Elaine Hartman - La Grande OR, US

International Classification:

E21B043/00

US Classification:

166369000, 166065100

Abstract:

The production rate, useful life and operating efficiency of electric submergible pumping systems (ESP) is improved by operating the system so that the motor () is cooled by two passes of production. Production fluids remove waste heat from the motor () by passing the fluid in contact with the exterior of the motor (). The improved cooling permits the motor to be operated at a lower temperature improving life and efficiency, and/or to be operated at higher power at a similar temperature. Additionally, oversized and excess equipment is not required, further improving performance and economics for the user. In another aspect, the invention is a method of pumping fluids using a motor having vortex generators () on its exterior surfaces or on the interior surfaces of a surrounding shroud.

US Patent:

59512628, Sep 14, 1999

Filed:

Apr 18, 1997

Appl. No.:

8/844576

Inventors:

Michael G. Hartman - Kent WA

Assignee:

Centriflow LLC - Kirkland WA

International Classification:

F04B 3504

US Classification:

417356

Abstract:

Provided in accordance with the principles of the present invention, in one preferred embodiment, is a mechanism (10). The mechanism functions in general for providing motive force, and is specially adapted for pumping applications. In particular, the mechanism includes an impeller/pumping section integral with a drive system (16). The mechanism includes a housing (14), and a tube (18) rotatably mounted within the housing. Specifically, the tube mounts in the housing for rotation of the tube relative to the housing, substantially about the tube's longitudinal axis. A power or drive system (16) connected to the tube, and/or forming part of the tube, causes the tube to rotate relative to the housing. The drive system preferably includes a plurality of magnets (42) mounted within the housing, located around the tube, for creating magnetic forces for causing the tube to rotate. One or more impellers (20) mount to the tube.

US Patent:

60009152, Dec 14, 1999

Filed:

Jan 9, 1998

Appl. No.:

9/005170

Inventors:

Michael G. Hartman - Kirkland WA

Assignee:

Centiflow LLC - Kirkland WA

International Classification:

F04B 3504

US Classification:

417356

Abstract:

Provided in accordance with the principles of the present invention, in one preferred embodiment, is a pumping system (90). The system includes a housing (108) rotatably supporting a tube (112), with a plurality of magnets (116) located around the tube. The magnets create magnetic forces that cause the tube to rotate. The system further includes a pump (94) connected to the tube. When the tube rotates, the pump receives rotational mechanical energy, which operates the pump. Additionally, the tube and pump are connected in fluid communication such that fluid flows through the pump and the tube, when the system operates to pump a fluid. Preferably, the outlet end (98) of the pump connects to the tube in the system so that fluid first flows through the pump, and then through the tube.