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:
Nov. 18, 2025
Filed:
Dec. 28, 2023
Halliburton Energy Services, Inc., Houston, TX (US);
Timothy Holiman Hunter, Duncan, OK (US);
Justin Lee Hurst, Duncan, OK (US);
Halliburton Energy Services, Inc., Houston, TX (US);
Abstract
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 mechanism may hold open the suction valve during pump stoppage, to prevent pressure accumulation. Alternate embodiments may be configured to protect the bellows, even when the pump continues to run. Related methods are also disclosed.