公开(公告)号：US20180283121A1

公开(公告)日：2018-10-04

申请号：US15599142

申请日：2017-05-18

Applicant: Zhihui Zhang ,  Zhiyue Xu ,  Goang-Ding Shyu ,  Juan Carlos Flores Perez ,  James Doane ,  Yingqing Xu

Inventor： Zhihui Zhang ,  Zhiyue Xu ,  Goang-Ding Shyu ,  Juan Carlos Flores Perez ,  James Doane ,  Yingqing Xu

IPC: E21B29/02 ,  E21B47/06 ,  E21B47/00 ,  E21B33/12 ,  E21B34/06

CPC classification number: E21B29/02 ,  E21B33/12 ,  E21B34/06 ,  E21B43/116 ,  E21B47/00 ,  E21B47/06 ,  E21B47/122 ,  E21B47/18 ,  E21B2034/005

Abstract: A downhole assembly includes a downhole tool including a degradable-on-demand material, the degradable-on-demand material including a matrix material, and a unit in contact with the matrix material, the unit including a core comprising an energetic material configured to generate energy upon activation to facilitate degradation of the downhole tool and, an activator disposed in contact with the core, the activator having a triggering system including an electrical circuit, an igniter in the electrical circuit arranged to ignite the energetic material, a sensor configured to sense a target event or parameter within the borehole, and a control unit arranged to receive sensed signals from the sensor and to deliver a start signal to the electrical circuit in response to the sensed signals indicating an occurrence of the target event or parameter wherein, after the start signal is delivered from the control unit, the electrical circuit is closed and the igniter is initiated.

公开(公告)号：US20180023357A1

公开(公告)日：2018-01-25

申请号：US15214202

申请日：2016-07-19

Applicant: James Doane

Inventor： James Doane

IPC: E21B23/01 ,  E21B33/129

CPC classification number: E21B33/128 ,  E21B23/01 ,  E21B23/04 ,  E21B33/12 ,  E21B33/129 ,  E21B33/1293

Abstract: An embodiment of a gripping arrangement includes a mandrel having an axially extending groove therein, a first slip ring about the mandrel, a first cone about the mandrel spaced from the first slip ring, and a key engaged with the groove such that the key is axially movable and rotationally fixed relative to the mandrel. The key is disposed to maintain the spacing between the first slip ring and the first cone. The gripping arrangement also includes a release feature releasably interconnected with the key and method.

公开(公告)号：US20160183453A1

公开(公告)日：2016-06-30

申请号：US14588161

申请日：2014-12-31

Applicant: Ian Doane ,  James Doane

Inventor： Ian Doane ,  James Doane

IPC: A01D34/416

CPC classification number: A01D34/4161

Abstract: A vegetation trimmer with a hub and spool assembly has a cutting filament wound around the spool. The free end of the filament extends through an aperture in the hub into the cutting plane. The hub and spool are rotated at a high rate to allow the filament to cut vegetation. The spool includes a plurality of arms which engage with arms on the hub. When the spool is acted upon, the arms on the spool disengage with the arms on the hub to permit relative rotation of the spool to the hub to feed additional filament into the cutting plane. An indexing feature is used to regulate the amount of additional cutting filament that is allowed to be fed into the cutting plane. The arms on the hub selectively engage with the arms on the spool to limit the axial movement between the spool and the hub. Quick removal is permitted when the spool is rotated relative to the hub and spool assembly, and the arms on the hub no longer limit the axial movement of the spool, and the spool is removed from the hub and spool assembly.

Abstract translation: 具有轮毂和卷轴组件的植被修剪器具有围绕卷轴缠绕的切割细丝。 灯丝的自由端延伸穿过轮毂中的孔进入切割平面。 轮毂和卷轴以高速旋转以允许细丝切割植被。 卷轴包括与轮毂上的臂接合的多个臂。 当阀芯作用时，阀芯上的臂与轮毂上的臂脱离，以允许阀芯相对于轮毂旋转，以将另外的细丝进入切割平面。 使用分度特征来调节允许进入切割平面的附加切割长丝的数量。 轮毂上的臂选择性地与卷轴上的臂接合以限制卷轴和轮毂之间的轴向运动。 当阀芯相对于轮毂和阀芯组件旋转时，允许快速拆卸，并且轮毂上的臂不再限制阀芯的轴向运动，并且阀芯从轮毂和阀芯组件中移除。

公开(公告)号：US20160145964A1

公开(公告)日：2016-05-26

申请号：US14552003

申请日：2014-11-24

Applicant: James Doane ,  Wayne Furlan ,  Ping Duan ,  Sayantan Roy ,  Anil Sadana

Inventor： James Doane ,  Wayne Furlan ,  Ping Duan ,  Sayantan Roy ,  Anil Sadana

IPC: E21B33/128 ,  E21B23/06

CPC classification number: E21B33/1208

Abstract: In one aspect, a degradable apparatus is disclosed, including: an inner core with a first degradation rate in a downhole environment; an outer sheath disposed around an outer extent of the inner core with a second degradation rate less than the first degradation rate in the downhole environment. In another aspect, a method of temporarily sealing a downhole zone is disclosed, including: providing an inner core with a first degradation rate in a downhole environment; providing an outer sheath disposed around an outer extent of the inner core with a second degradation rate less than the first degradation rate in the downhole environment; sealing the downhole zone with the outer sheath; exposing the outer sheath to the downhole environment; and exposing the inner core to the downhole environment.

Abstract translation: 一方面，公开了一种可降解装置，包括：在井下环境中具有第一降解速率的内核; 外护套，其设置在内芯的外部范围内，具有小于井下环境中的第一劣化率的第二降解率。 另一方面，公开了临时密封井下区域的方法，包括：在井下环境中提供具有第一降解速率的内核; 提供围绕所述内芯的外部范围设置的外护套，其具有小于所述井下环境中的所述第一降解速率的第二降解速率; 用外护套密封井下区域; 将外护套暴露于井下环境; 并将内芯暴露于井下环境中。

公开(公告)号：US20160135367A1

公开(公告)日：2016-05-19

申请号：US14542570

申请日：2014-11-15

Applicant: James Doane

Inventor： James Doane

IPC: A01D34/416

CPC classification number: A01D34/416 ,  A01D34/4168

Abstract: A vegetation trimmer with a filament enclosure has cutting filament stored inside the filament enclosure. The free end of the cutting filament extends through a portal in the filament enclosure into the cutting plane. The filament enclosure is rotated at a high rate to allow the cutting filament to cut vegetation. Additional portals in the filament enclosure provide air circulation to the cutting filament stored inside the filament enclosure to prevent heating of the cutting filament during use.

Abstract translation: 具有灯丝外壳的植被修剪器具有存储在灯丝外壳内的切割灯丝。 切割细丝的自由端延伸穿过灯丝外壳中的入口进入切割平面。 灯丝外壳以高速率旋转，以允许切割细丝切割植被。 灯丝外壳中的额外门口为存放在灯丝外壳内的切割灯丝提供空气循环，以防止在使用过程中加热切割灯丝。

公开(公告)号：US5005868A

公开(公告)日：1991-04-09

申请号：US505403

申请日：1990-04-06

Applicant: Bradley M. Stern ,  James Doane

Inventor： Bradley M. Stern ,  James Doane

IPC: A63C17/01

CPC classification number: A63C17/265 ,  A63C17/0006 ,  A63C17/01

Abstract: A retractable sling assembly for mounting to coaster-type vehicles including an enclosure adapted for carrying a storage member within, said storage member arrayed for winding and holding a selected portion of a flexible sling thereon, said flexible sling having a free end to which an attaching member is secured; and a connecting member mounted to the vehicle for engaging the attaching member thereby holding the flexible sling in a more or less extended condition as and when desired.

Abstract translation: 一种用于安装到过山车型车辆的伸缩吊索组件，包括适于承载存储构件的外壳，所述存储构件排列成用于卷绕和保持其上的柔性吊索的选定部分，所述柔性吊索具有自由端，附接 会员安全; 以及安装到车辆上的连接构件，用于接合附接构件，从而在需要时将柔性吊索保持在或多或少的延伸状态。