The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Mar. 10, 2009
Filed:
Oct. 03, 2006
Kevin R Williams, Cypress, TX (US);
Alvie E. Howard, Jr., Houston, TX (US);
Daniel F. Mcnease, Montgomery, TX (US);
Rudy Harris, Longview, TX (US);
Richard Bradley, Cypress, TX (US);
Kevin R Williams, Cypress, TX (US);
Alvie E. Howard, Jr., Houston, TX (US);
Daniel F. McNease, Montgomery, TX (US);
Rudy Harris, Longview, TX (US);
Richard Bradley, Cypress, TX (US);
LaTourneau Technologies Drilling Systems, Inc., Houston, TX (US);
Abstract
A low speed alternating current motor having motor shaft speeds of about 300 is provided, and such motor has application in numerous industries and devices, such as, for example, in top drive drilling systems. Because of the low shaft speed, mechanical speed reduction equipment may not be necessary. In addition, the motor shaft may be hollow to facilitate the flow of fluid, such as, for example, drilling mud.