IP Library Granted Patent US 10,527,140
Granted Patent B2
US 10,527,140 · App. 15/318,509 · Granted Jan 7, 2020

Compact articulation mechanism

Inventor: Hau Nguyen-Phuc Pham (Houston, TX)
Assignee: SCHLUMBERGER TECHNOLOGY CORPORATION
F16H25/20B65D88/32B65G65/32E04H7/22E21B43/267B65G2814/0326F16H2025/2031
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Quick Facts
Patent No.
US 10,527,140
App. No.
15/318,509
Granted
Jan 7, 2020
Kind
B2
Abstract

An articulation mechanism for large scale mobile aggregate system equipment. The mechanism includes a screw device that is pivotally secured to an elongated portion of the equipment to drive its movement to and from a collapsed position. The screw device is driven by a screw jack and moved within a housing while the housing itself is pivotally secured to another portion of the equipment. Rollers within the housing may be used to stabilize the lateral movement of the screw device during the opening, closing or self-locking of the elongated portion by the mechanism.

Claims (19)

1. A method of utilizing a large-scale aggregate management system at a worksite, the method comprising:

delivering mobile equipment of the system to the worksite with an elongated portion of the equipment in a collapsed position relative another portion of the equipment;

employing a screw jack of an articulation mechanism to laterally move a screw device by rotationally operating the screw jack, via a motor, relative to a threaded region of the screw device so as to extend or retract the screw device with respect to a screw device housing, an end of the screw device being pivotally secured to the elongated portion and the screw device housing being pivotally coupled to the other portion of the equipment, the lateral movement of the screw device causing the elongated portion of the equipment to pivot from the collapsed position to an operating position relative the another portion of the equipment, the screw device supporting a load from the elongated equipment during movement from the collapsed position to the operating position;

holding, with the screw device, the elongated portion in the operating position in a substantially self-locking manner; and

operating the mobile equipment at the worksite, while the elongated portion of the equipment is in the operating position, to deliver aggregate for a well related application.

2. The method of claim 1 further comprising:

holding, with the screw device, the elongated portion in the in the collapsed position in a substantially self-locking manner; and

transporting the mobile equipment prior to delivering.

3. The method of claim 2 wherein holding the elongated portion in the collapsed position comprises maintaining the screw device in a retracted position relative the housing.

4. The method of claim 3 wherein the mobile equipment is a mobile base frame coupled to an aggregate silo at the worksite, wherein the elongated portion thereof is a wing with the operational position comprising the wing deployed to the ground, and wherein the collapsed position is the wing in a folded upright position relative to the ground.

5. The method of claim 2 wherein holding the elongated portion in the collapsed position comprises maintaining the screw device in an extended position relative the housing.

6. The method of claim 5 wherein the mobile equipment is a mobile auger unit positioned relative to an aggregate silo such that operation of the mobile auger unit discharges aggregate into the silo.

7. The method of claim 6 wherein the collapsed position is a horizontal orientation relative to the ground and wherein the operating position is a vertical position relative to the ground, wherein the elongated portion of the equipment comprises at least one auger arm for delivering the aggregate to the silo, the method further comprising operating an elevator of the auger unit coupled to the auger arm to a vertical position after holding the auger arm in the operating position.

8. The method of claim 1 , further comprising forming the screw device housing with a rectangular cross-section for receiving a corresponding rectangular section of the screw device.

9. The method of claim 1 , further comprising supporting the screw device on a plurality of rollers.

10. The method of claim 1 , wherein rotationally operating the screw jack, via a motor, comprises using a hydraulic motor.

11. The method of claim 1 , further comprising coupling the screw device housing to the other portion of the equipment via an offset clevis connection.

12. The method of claim 1 , further comprising coupling the screw device housing to the other portion of the equipment via a supplemental link.

13. The method of claim 1 , wherein operating comprises delivering aggregate in the form of proppant for use in a fracturing operation.

Assignments (7)
CHANGE OF NAME Recorded Jan 13, 2025
From: LIBERTY OILFIELD SERVICES LLC
To: LIBERTY ENERGY SERVICES LLC
Reel/Frame 069881/0664 →
RELEASE OF SECURITY INTEREST Recorded Jun 26, 2023
From: WELLS FARGO BANK, NATIONAL ASSOCIATION, AS ADMINISTRATIVE AGENT
To: LIBERTY OILFIELD SERVICES LLC
Reel/Frame 064058/0405 →
RELEASE OF PATENT SECURITY AGREEMENT Recorded Jan 26, 2023
From: U.S. BANK NATIONAL ASSOCIATION, AS AGENT
To: LIBERTY OILFIELD SERVICES LLC
Reel/Frame 062516/0566 →
PATENT SECURITY AGREEMENT Recorded Jun 15, 2021
From: LIBERTY OILFIELD SERVICES LLC
To: U.S. BANK NATIONAL ASSOCIATION, AS AGENT
Reel/Frame 056596/0168 →
SECURITY INTEREST Recorded Feb 10, 2021
From: LIBERTY OILFIELD SERVICES LLC
To: WELLS FARGO BANK, NATIONAL ASSOCIATION, AS ADMINISTRATIVE AGENT
Reel/Frame 055217/0599 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jan 4, 2021
From: SCHLUMBERGER TECHNOLOGY CORPORATION
To: LIBERTY OILFIELD SERVICES LLC
Reel/Frame 054802/0869 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jan 24, 2017
From: PHAM, HAU NGUYEN-PHUC
To: SCHLUMBERGER TECHNOLOGY CORPORATION
Reel/Frame 041060/0556 →
Continuity (2)
Provisional Application 62019294 · Jun 30, 2014
Related Publication 20170130808A1 · May 11, 2017