公开(公告)号：USD524364S1

公开(公告)日：2006-07-04

申请号：US29203696

申请日：2004-04-16

Applicant: David B. Larson ,  Julie B. Jensen ,  Angela K. Ogle

Designer： David B. Larson ,  Julie B. Jensen ,  Angela K. Ogle

公开(公告)号：US4802534A

公开(公告)日：1989-02-07

申请号：US92938

申请日：1987-09-04

Applicant: David B. Larson ,  Erik B. Nelson

Inventor： David B. Larson ,  Erik B. Nelson

IPC: B01F13/08 ,  C04B14/30 ,  C04B14/34 ,  C04B28/02 ,  C04B40/02 ,  C09K8/42 ,  C09K8/46 ,  E21B33/14 ,  E21B43/00

CPC classification number: E21B33/13 ,  B01F13/0809 ,  C04B14/30 ,  C04B14/34 ,  C04B28/02 ,  C04B40/0209 ,  C09K8/42 ,  C09K8/46 ,  B01F2215/0081

Abstract: A novel method and device for manipulating ferrofluids for use in cementing wells are disclosed. The cementitious fluids may comprise: (a) a hydraulic cement, (b) finely divided magnetic particles, (c) a binding agent or a surfactant, and (d) a liquid medium. The binding agent or surfactant is present in the compositions in an amount sufficient to render the compositions stable in a magnetic field. When used in cementing wells, the cementitious ferrofluids are implaced in the annulus separating a casing from the formation in a wellbore by conventional techniques and the slurry is subsequently subjected to an activating alternating magnetic field that causes movement of the flurry. The non-cementitious ferrofluids comprise: (a) finely divided magnetic particles, (b) stabilizing agent, and (c) a liquid medium. The movement of the slurry results in a "scrubbing" action against the surface of the casing and formation surfaces, and a mixing of the slurry which helps displace any residual drilling mud. The net result is better bonding of the cement to the casing and formation.

Abstract translation: 公开了一种用于操纵用于固井的铁磁流体的新颖方法和装置。 水泥质流体可以包括：（a）水硬性水泥，（b）细碎的磁性颗粒，（c）粘合剂或表面活性剂，和（d）液体介质。 粘合剂或表面活性剂以足以使组合物在磁场中稳定的量存在于组合物中。 当在固井中使用时，水泥质铁磁流体通过常规技术嵌入到在井眼中将壳体与地层分离的环形空间中，并且随后使浆料经受引起湍流运动的活化交变磁场。 非水泥质铁磁流体包括：（a）细分磁性颗粒，（b）稳定剂和（c）液体介质。 浆料的运动导致针对壳体和地层表面的“擦洗”作用，以及浆液的混合，其有助于移动任何残留的钻井泥浆。 最终的结果是水泥与套管和地层的粘结更好。

公开(公告)号：US20130109280A1

公开(公告)日：2013-05-02

申请号：US13721344

申请日：2012-12-20

Applicant: David B. Larson ,  Brian M. Spahnie

Inventor： David B. Larson ,  Brian M. Spahnie

IPC: B24B7/10

CPC classification number: B24B7/10 ,  B24B19/11 ,  B24D13/04

Abstract: A method of marring a fiber optic substrate by supporting a length of the substrate on a tapered surface of an elongate support and causing relative movement between at least one roller and the support lengthwise of the support with the roller pressing the substrate against the tapered surface and the roller rolling along the substrate. At least one of the roller and the support include an abrasive surface for marring the substrate during such relative movement therebetween.

Abstract translation: 一种通过将长度的衬底支撑在细长支撑件的锥形表面上并通过辊将衬底压靠在锥形表面上并使得至少一个辊和支撑件在支撑件纵向方向之间相对运动而损坏光纤衬底的方法;以及 滚子沿基板滚动。 辊和支撑体中的至少一个包括用于在其间的相对运动期间损坏基底的研磨表面。

公开(公告)号：USD655331S1

公开(公告)日：2012-03-06

申请号：US29376872

申请日：2010-10-13

Applicant: David B. Larson ,  Da-Wei Huang ,  Kevin L. Falk

Designer： David B. Larson ,  Da-Wei Huang ,  Kevin L. Falk

公开(公告)号：US08029337B2

公开(公告)日：2011-10-04

申请号：US12907064

申请日：2010-10-19

Applicant: David B. Larson ,  Brian M. Spahnie

Inventor： David B. Larson ,  Brian M. Spahnie

IPC: B24B5/38

CPC classification number: B24B7/10 ,  B24B19/11 ,  B24D13/04

Abstract: Methods and systems for marring fiber optic substrates may include rollers with abrasive surfaces that press lengths of the substrates against elongated supports, which may be tapered, during relative lengthwise movement between the rollers and supports; abrasive sheets that are vibrated against the substrates; abrasive flap wheels that are rotated to cause flexible abrasive flaps on the wheels to strike the substrates; rotating blades that cut a transverse marring pattern in the substrates; hammers having abrasive surfaces that are oscillated to strike the substrates; and water jet abrasive slurries that are directed at the substrates.

Abstract translation: 用于损坏光纤基板的方法和系统可以包括具有研磨表面的滚子，所述滚子具有在辊和支撑件之间的相对长度方向移动期间将基板的长度压缩成细长支撑件（可以是锥形的） 相对于基板振动的研磨片; 旋转的研磨翼片轮使得轮上的柔性研磨片撞击基底; 旋转刀片切割基片中的横向锯齿图案; 锤具有振动的研磨表面以撞击基底; 和喷射研磨浆料，其指向基底。

公开(公告)号：US07833087B2

公开(公告)日：2010-11-16

申请号：US11327968

申请日：2006-01-09

Applicant: David B. Larson ,  Brian M. Spahnie

Inventor： David B. Larson ,  Brian M. Spahnie

IPC: B24B5/14

CPC classification number: B24B7/10 ,  B24B19/11 ,  B24D13/04

Abstract: Methods and systems for marring fiber optic substrates may include rollers with abrasive surfaces that press lengths of the substrates against elongated supports, which may be tapered, during relative lengthwise movement between the rollers and supports; abrasive sheets that are vibrated against the substrates; abrasive flap wheels that are rotated to cause flexible abrasive flaps on the wheels to strike the substrates; rotating blades that cut a transverse marring pattern in the substrates; hammers having abrasive surfaces that are oscillated to strike the substrates; and water jet abrasive slurries that are directed at the substrates.

Abstract translation: 用于损坏光纤基板的方法和系统可以包括具有研磨表面的滚子，所述滚子具有在辊和支撑件之间的相对长度方向移动期间将基板的长度压缩成细长支撑件（可以是锥形的） 相对于基板振动的研磨片; 旋转的研磨翼片轮使得轮上的柔性研磨片撞击基底; 旋转刀片切割基片中的横向锯齿图案; 锤具有振动的研磨表面以撞击基底; 和喷射研磨浆料，其指向基底。

公开(公告)号：USD558265S1

公开(公告)日：2007-12-25

申请号：US29254762

申请日：2006-02-28

Applicant: Michael V. Leman ,  David B. Larson ,  Julie A. Jensen

Designer： Michael V. Leman ,  David B. Larson ,  Julie A. Jensen

公开(公告)号：USD524362S1

公开(公告)日：2006-07-04

申请号：US29201483

申请日：2004-03-16

Applicant: Curtis G. Kelsay ,  David B. Larson

Designer： Curtis G. Kelsay ,  David B. Larson

公开(公告)号：US06874925B2

公开(公告)日：2005-04-05

申请号：US10382379

申请日：2003-03-06

Applicant: David J. Page ,  David B. Larson ,  Joseph Lee Diamond

Inventor： David J. Page ,  David B. Larson ,  Joseph Lee Diamond

IPC: F21V8/00 ,  G02B6/08 ,  F21V7/04 ,  G02B6/04

CPC classification number: G02B6/08 ,  G02B6/0008

Abstract: Fiber optic light panel assemblies include a panel member having one or more layers of individual optical fibers arranged in close proximity to each other. One or more of the optical fibers may be completely severed adjacent the light receiving end of the panel member to prevent any light entering the light receiving end from being transmitted through the severed optical fibers. At least some of the severed optical fibers may extend along one or more side edges of the panel member and/or intermediate the side edges. A slot may extend through an unlighted end of the panel member toward the light receiving end intermediate the side edges that sever a number of the optical fibers at the innermost end of the slot. The panel member may also be cut into a plurality of smaller width panel sections to provide gaps between the panel sections. One or both ends of the panel member (including any smaller width panel sections) and/or any severed ends of the optical fibers may be masked with a light absorbent material to absorb any light emitted therefrom.

Abstract translation: 光纤光板组件包括具有彼此靠近布置的一个或多个独立光纤层的面板构件。 一个或多个光纤可以在面板构件的光接收端附近被完全切断，以防止进入光接收端的任何光透过切断的光纤。 至少一些切断的光纤可以沿着面板构件的一个或多个侧边缘延伸和/或在侧边缘之间延伸。 狭槽可以延伸穿过面板构件的未点亮的端部朝向在狭槽的最内端处切断多个光纤的侧边缘的光接收端。 面板构件还可以被切割成多个较小宽度的面板部分，以在面板部分之间提供间隙。 面板构件（包括任何较小宽度的面板部分）和/或光纤的任何切断的端部的一端或两端可用光吸收材料掩蔽以吸收从其发射的任何光。

公开(公告)号：US06575019B1

公开(公告)日：2003-06-10

申请号：US09760016

申请日：2001-01-12

Applicant: David B. Larson

Inventor： David B. Larson

IPC: G01N1104

CPC classification number: G01N11/04 ,  G01N11/08

Abstract: A reciprocating pump and a capillary viscometer utilizing the same. Preferably, the inventive reciprocating pump is a syringe pump comprising: a cylinder, an actuated piston, and a floating piston. A chamber is created between the actuated piston and floating piston which may be filled with a pressurant to establish the quiescent pressure of the test fluid. The capillary viscometer comprises: a capillary tube wound about a heated mandrel, a differential pressure transducer, and a reciprocating pump. Test fluid is first pumped at a known rate from a first chamber, through the capillary tube, and into a second chamber. The pump is then reversed and the test fluid is then pumped from the second chamber, back through the capillary tube, and back into the first chamber. The process may be repeated in a continuous, reciprocating manner.

Abstract translation: 一种往复泵和使用该往复泵的毛细管粘度计。 优选地，本发明的往复泵是注射泵，其包括：气缸，致动活塞和浮动活塞。 在致动的活塞和浮动活塞之间产生一个室，该活塞可以填充有压力以建立测试流体的静态压力。 毛细管粘度计包括：围绕加热心轴缠绕的毛细管，差压换能器和往复泵。 首先以第一室从毛细管以已知的速率泵送测试流体并进入第二室。 然后将泵反向，然后将测试流体从第二室泵送回到毛细管并返回到第一室中。 该过程可以以连续的，往复的方式重复。