Invention Grant
- Patent Title: Guideless cage for downhole valve
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Application No.: US17955374Application Date: 2022-09-28
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Publication No.: US11952866B1Publication Date: 2024-04-09
- Inventor: Michael Bair , Simon Shin
- Applicant: Black Gold Pump and Supply, Inc.
- Applicant Address: US CA Signal Hill
- Assignee: Black Gold Pump and Supply, Inc.
- Current Assignee: Black Gold Pump and Supply, Inc.
- Current Assignee Address: US CA Signal Hill
- Agency: Scanlon Duncan LLP
- Agent James M. Duncan
- Main IPC: E21B34/06
- IPC: E21B34/06 ; E21B34/14 ; F16K15/04

Abstract:
A cage for a down-hole valve for a hydrocarbon well has no internal guides for directing a ball as it travels from a closed position in which the ball is disposed against a ball seat to an open position where the ball is urged against a ball stop structure. The cage has an internal conical profile which inhibits ball sticking, reduces ball lift acceleration, and allows for a full-open flow area through the cage.
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