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. 02, 2001
Filed:
Jan. 06, 2000
Kyle Lamar Taylor, Spring, TX (US);
Other;
Abstract
A combination collar based retrievable drilling fluid filter and wiper with threaded ends for easy inclusion within the drill string, and a through bore for passage of drilling fluids and insertion of a wire line retrievable filter and wiper unit which is concentrically received and supported by the collar. The filter and wiper unit include a filter insert and an elongated wiper carrier. The filter insert is positioned at an upper end of the apparatus and is received by the elongated wiper carrier which is positioned at the lower end of the apparatus. The elongated wiper carrier includes numerous wiper brushes which help remove scale from the interior of the drill string when the filter and wiper unit is retrieved. Electrical wiring passes easily through the apparatus for operation of down hole instruments if desired.