Invention Grant
US08770322B2 Latch body components having multiple functions, and drilling head assembly incorporating same
有权
具有多种功能的闩锁体部件,以及并入其的钻头组件
- Patent Title: Latch body components having multiple functions, and drilling head assembly incorporating same
- Patent Title (中): 具有多种功能的闩锁体部件,以及并入其的钻头组件
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Application No.: US13593338Application Date: 2012-08-23
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Publication No.: US08770322B2Publication Date: 2014-07-08
- Inventor: Christopher L. Drenth , Anthony LaChance , George Iondov
- Applicant: Christopher L. Drenth , Anthony LaChance , George Iondov
- Applicant Address: US UT South Jordan
- Assignee: Longyear TM, Inc.
- Current Assignee: Longyear TM, Inc.
- Current Assignee Address: US UT South Jordan
- Agency: Ballard Spahr LLP
- Main IPC: E21B7/00
- IPC: E21B7/00

Abstract:
A latch body for use in a drilling head assembly including a fluid control subassembly, a check valve element, and/or a hollow spindle. A distal end portion of the latch body includes a port section that defines a chamber for receiving the check valve element and promoting movement of the check valve element between a blocking position and an open position. The hollow spindle of the fluid control subassembly is operatively coupled to the chamber of the port section and supports the check valve element in the blocking position. A proximal end portion of the latch body supports the fluid control subassembly of the drilling head assembly in an operative position. The latch body includes male protrusions extending inwardly toward and spaced from a longitudinal axis of the latch body. A plurality of channels extend radially outwardly from the longitudinal axis of the latch body, spanning between adjacent male protrusions.
Public/Granted literature
- US20140054093A1 Latch Body Components Having Multiple Functions, And Drilling Head Assembly Incorporating Same Public/Granted day:2014-02-27
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