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:
May. 19, 2026
Filed:
Jun. 05, 2025
Tempress Technologies, Inc., Renton, WA (US);
Jack J. Kolle, Seattle, WA (US);
Tempress Technologies, Inc., Renton, WA (US);
Abstract
A rotary flow control apparatus may comprise a rotary drive mechanism coupled to a ball controller comprising a ball disposed within a cavity. The apparatus may be disposed within a tubing string in a wellbore. Fluid flow is provided though the tubing, causing the rotation of the rotary drive mechanism. The flow passes through a ball cage above a seat disc that incorporates a flow port. The ball orbits around the cavity in response to the motion of an axially extending surface or 'kicker.' When the ball obstructs the flow port, it substantially blocks the flow of fluid through the assembly, generating a water hammer impulse in the tubing above the rotary drive mechanism. The rotating kicker moves the ball off the flow port at one angular position and then allows the ball to reseat at a second angular position.