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    Vacuum breaker flow regulator
    21.
    发明授权
    Vacuum breaker flow regulator 有权
    真空断路器流量调节器

    公开(公告)号：US08550113B1

    公开(公告)日：2013-10-08

    申请号：US12798266

    申请日：2010-03-31

    Applicant: Edward L. Hamernik ,  David B. Larson

    Inventor： Edward L. Hamernik ,  David B. Larson

    IPC: F16K31/12

    CPC classification number: G05D16/0677 ,  A61M16/207 ,  Y10T137/7801 ,  Y10T137/7836

    Abstract: A single stage vacuum breaker flow regulator includes a diaphragm retained in an elevated position in between atmosphere and an outlet chamber for a gaseous medium. A valve in communication with an inlet chamber is yieldingly urged to a closed position by a spring. Cam levers are movable by the diaphragm upon a reduction in pressure to sub-atmospheric in the outlet chamber. The movement of said cam levers in response to a reduction in pressure is transmitted to a yieldingly movable valve to open said valve to the flow of gas from said inlet chamber to said outlet chamber.

    Abstract translation: 单级真空断路器流量调节器包括保持在大气中的升高位置的隔膜和用于气体介质的出口室。 与入口室连通的阀门通过弹簧有力地推动到关闭位置。 凸轮杆可以通过隔膜在压力降低到出口室中的低于大气压的状态下移动。 响应于压力降低，所述凸轮杆的移动被传递到可屈曲的可移动阀，以将气体从所述入口室向所述出口室打开。

    METHODS AND SYSTEMS FOR MARRING FIBER OPTIC SUBSTRATES
    23.
    发明申请
    METHODS AND SYSTEMS FOR MARRING FIBER OPTIC SUBSTRATES 有权
    用于光纤光栅的方法和系统

    公开(公告)号：US20110034110A1

    公开(公告)日：2011-02-10

    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: B24B5/04

    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。

    Fracturing fluids containing bouyant inorganic diverting agent and method of use in hydraulic fracturing of subterranean formations
    28.
    发明授权
    Fracturing fluids containing bouyant inorganic diverting agent and method of use in hydraulic fracturing of subterranean formations 失效
    含有bouyant无机转移剂的压裂液和地下地层水力压裂中使用的方法

    公开(公告)号：US4509598A

    公开(公告)日：1985-04-09

    申请号：US478933

    申请日：1983-03-25

    Applicant: Robert B. Earl ,  David B. Larson ,  Huy X. Nguyen

    Inventor： Robert B. Earl ,  David B. Larson ,  Huy X. Nguyen

    IPC: C09K8/62 ,  E21B43/26

    CPC classification number: E21B43/261 ,  C09K8/62 ,  E21B43/26

    Abstract: The growth of upward vertical fractures during a hydraulic fracturing process is inhibited or prevented by (1) initiating the fracture with a first fluid which is a pad fluid, and (2) extending the fracture with a second fluid comprising a carrier fluid and a bouyant inorganic diverting agent. The second fluid is preferably pumped at a minimum rate to extend the fracture and carry the diverting agent without screening out. After the diverting agent is implaced, a viscous pad fluid and fracture fluid are subsequently pumped at treatment rates and pressures to complete the fracturing process.

    Abstract translation: 在水力压裂过程中向上垂直裂缝的生长被抑制或防止（1）用作为衬垫流体的第一流体引发断裂，和（2）用包含载体流体和浮力的第二流体延伸断裂 无机转移剂。 优选地以最小速率泵送第二流体以延伸断裂并携带转移剂而不进行筛选。 在转移剂被牵引后，随后在处理速率和压力下泵送粘性垫液体和断裂流体以完成压裂过程。

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