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:
Oct. 05, 2021
Filed:
Oct. 30, 2019
Nabors Drilling Technologies Usa, Inc., Houston, TX (US);
Faisal Yousef, Houston, TX (US);
Randy Pyrch, Montgomery, TX (US);
William R. Slocum, Houston, TX (US);
Nabors Drilling Technologies USA, Inc., Houston, TX (US);
Abstract
A top drive comprising: a housing; a bearing coupled to the housing, the bearing defining an upper surface; and a quill coupled to the bearing, wherein an engagement interface between the quill and bearing is disposed along the upper surface of the bearing. A method of installing a quill in a top drive comprising: providing a top drive preassembly comprising a housing, a bonnet coupled with the housing, and a spindle coupled with the housing; translating the quill in a direction toward the top drive preassembly through an opening in the bonnet; and after aligning the quill relative to the top drive preassembly, securing the quill to the top drive preassembly with a securing element.