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:
Sep. 29, 2020
Filed:
May. 11, 2018
Frac Technology As, Ytre Arna, NO;
Viggo Brandsdal, Ytre Arna, NO;
FRAC Technology AS, , NO;
Abstract
A downhole valve having: a valve body with a longitudinal main passage; an annular chamber arranged in the valve body; at least one valve port extending from the main passage, through the annular chamber and to an outside of the valve. The downhole valve further includes a sleeve disposed at least partially within the chamber. The sleeve is movable in response to an application of fluid pressure to the annular chamber via a fluid channel extending from the main passage to the annular chamber. The sleeve is movable between a closed position in which the sleeve blocks the at least one valve port and an open position in which the sleeve does not block the at least one valve port.