US Patent Issued to Halliburton Energy Services on Nov. 18 for "Active bellows pump valve management" (Oklahoma Inventors)

ALEXANDRIA, Va., Nov. 18 -- United States Patent no. 12,473,909, issued on Nov. 18, was assigned to Halliburton Energy Services Inc. (Houston).

"Active bellows pump valve management" was invented by Timothy Holiman Hunter (Duncan, Okla.) and Justin Lee Hurst (Duncan, Okla.).

According to the abstract* released by the U.S. Patent & Trademark Office: "Disclosed embodiments may relate to bellows pumps for introducing treatment fluid into a well. Wear issues, for example causing leakage of the discharge valve, can lead to pressure build-up in the pump chamber which may eventually damage the bellows. Disclosed embodiments may be configured to prevent such damage to the bellows due to discharge valve leakage. For example, in some embodiments a ...