Other

Smith International, Inc.

Daniel D Alvarado

Peter Thomas Cariveau

Geoffrey Charles Downton

Lance D Underwood

Gokturk Tunc

Lawrence C Lee

Maxim Pushkarev

Brian P Jarvis

William E Murray

Andrei Plop

Brian Williams

Nigel Wilcox

Warren E Askew

Shunetsu Onodera

Shun'etsu Onodera

Techniques involve a motor assembly including a rotor and a stator. The stator includes a contact surface for contacting an outer surface of the rotor. The contact surface includes a rigid material. The motor assembly also includes at least one constraint disposed along a length of the motor assembly, where the constraint constrains a radial and/or tangential movement of the rotor relative to the stator. The at least one constraint may be disposed at one or more proximate ends of the motor assembly, and/or along the length of the motor assembly. The contact surface of the stator may have a profile including peaks and valleys, and in some embodiments, the contact surface may be treated to reduce friction and/or wear.

Apparatus and method for controlling or limiting rotor orbit in moving cavity motors and pumps

Techniques relate to a moving cavity motor or pump, such as a mud motor, including a rotor, a stator, and one or more apparatus for constraining (i.e., controlling or limiting) the movement of the rotor relative to the stator, where the apparatus for constraining is operable with the rotor catch. The motor may include a top sub, power section having a progressive cavity motor with a stator and rotor, a rotor catch, and an apparatus between a proximal and distal end of the rotor catch shaft. The apparatus may constrain the radial and/or tangential movement of the rotor catch shaft and the rotor.

Positive displacement motor with radially constrained rotor catch

A moving cavity motor or pump, such as a mud motor, comprising: a rotor, a stator, and one or more apparatus for constraining (i.e., controlling or limiting) the movement of the rotor relative to the stator, where the apparatus for constraining is operable with the rotor catch.

A moving cavity motor or pump, such as a mud motor, comprising: a rotor, a stator, and one or more apparatus for constraining (i.e., controlling or limiting) the movement of the rotor relative to the stator.

A game having the object of winning either by promotion to the chairman of the board or by acquisition of a majority interest in stock of a corporation is based upon real life corporate decision making requirements with commensurate rewards and penalties. A two part game board is laid out to depict two paths; the first path reflects the position of each player upon the corporate ladder and the second path regulates a player's financial status and extent of stock ownership. The second path is divided into a plurality of sections, each section being directed to one of six discrete corporate functions and each of which functions affects by stipulated extent or by trading option possibilities of a player's progress in both areas of interest. An element of luck is introduced by directing to some extent a player's movement along the second path by the throw of a pair of dice.

Business organization game

Growing community of inventors

Phoenix, AZ, United States of America

Daniel D Alvarado