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    • 4. 发明申请
    • Sulfur-containing oligomers and high index polyurethanes prepared therefrom
    • 含硫低聚物和由其制备的高折射率聚氨酯
    • US20070142605A1
    • 2007-06-21
    • US11303707
    • 2005-12-16
    • Nina BojkovaRobert HeroldWilliam McDonaldMarvin GrahamRobert Smith
    • Nina BojkovaRobert HeroldWilliam McDonaldMarvin GrahamRobert Smith
    • C08G18/00
    • C08G18/758C08G18/10C08G18/1816C08G18/3876C08G18/52
    • The present invention provides polythiol oligomer formed by the reaction of at least two or more different dienes and at least one or more dithiol wherein stoichiometric ratio of the sum of the number of equivalents of all polythiols to the sum of the number of equivalents of all dienes used to form said polythiol oligomer is greater than 1.0:1.0; and wherein said two or more different dienes comprise (a) at least one non-cyclic diene and at least one cyclic diene; or (b) at least one aromatic ring-containing diene and at least one non-aromatic cyclic diene; or (c) at least one non-aromatic monocyclic diene and at least one non-aromatic polycyclic diene; Sulfur-containing polyurethane of the present invention can be prepared by combining polyisocyanate, polyisothiocyanate, or mixture thereof; the polythiol oligomer described above; and active hydrogen-containing material.
    • 本发明提供通过至少两种或更多种不同的二烯和至少一种或多种二硫醇的反应形成的多硫醇低聚物,其中所有多硫醇的当量数之和与所有二烯的当量数之和的化学计量比 用于形成所述多硫醇低聚物大于1.0:1.0; 并且其中所述两种或更多种不同的二烯包含(a)至少一种非环状二烯和至少一种环状二烯; 或(b)至少一种含芳族环的二烯和至少一种非芳族环状二烯; 或(c)至少一种非芳族单环二烯和至少一种非芳族多环二烯; 本发明的含硫聚氨酯可以通过多异氰酸酯,多异硫氰酸酯或其混合物的组合来制备; 上述多硫醇低聚物; 和含活性氢的材料。
    • 6. 发明授权
    • Pressure equalizing earphone
    • US11405717B2
    • 2022-08-02
    • US17125603
    • 2020-12-17
    • Robert SmithCasey Ng
    • Robert SmithCasey Ng
    • H04R1/10
    • An earphone has a body housing a transducer that is capable of generating an acoustic signal and directing the acoustic signal to an outlet in the body, the body being positionable in, on, or near an ear of user so that the acoustic signal can be directed into the ear canal of the user. The earphone also has an ear coupling mechanism comprising a sealing mechanism with a sealing member that is adapted to contact a portion of the ear of the user to at least partially create a seal between the ear canal and the external environment and a venting mechanism capable of venting air between the ear canal and the external environment, the venting mechanism comprising an air conduit that is adapted to communicate on one end with the ear canal and at another end with the external environment so that air can flow through the conduit to equalize a pressure differential across the sealing mechanism. The air conduit is sized and shaped so as to provide an improved audio performance over an earphone without the air conduit.
    • 9. 发明授权
    • Portable temporary extension enclosure for folding trailers
    • 便携式折叠式拖车的临时扩展机柜
    • US08919861B1
    • 2014-12-30
    • US14107571
    • 2013-12-16
    • Robert Smith
    • Robert Smith
    • B60P3/00B60P3/36
    • B60P3/36
    • A flexible extension storage enclosure for folding travel trailers that is selectively secured to the underside of a folding trailer extension after it has been deployed from the main body of the travel trailer. The storage extension enclosure provides additional usable weather tight storage area beneath the extension by using a combination of track insertable support rails and a plurality of wall surface mounted snaps to define selectively accessible integrated storage compartment there beneath with a selective access closure.
    • 用于折叠行走拖车的灵活的扩展存储箱,其在从行驶拖车的主体部署之后被选择性地固定到折叠拖车延伸部的下侧。 存储延伸机架通过使用可轨道插入的支撑轨道和多个壁表面安装的卡扣的组合,在延伸部下方提供额外的可用的天气紧密的存储区域,以在其下方具有选择性的存取闭合件来限定可选择地可访问的集成的存储隔间。
    • 10. 发明授权
    • Chain tension sensor
    • 链式张力传感器
    • US08636140B2
    • 2014-01-28
    • US13553487
    • 2012-07-19
    • John ToutGordon PowellRobert Smith
    • John ToutGordon PowellRobert Smith
    • B65G23/44
    • B65G43/00B65G19/10B65G19/18B65G23/44B65G43/02B65G43/06G01L5/04
    • A chain tension sensor for a chain conveyor, the conveyor including a frame and a chain having a plurality of flights. The tension sensor includes a reaction arm and a load sensing pin. The reaction arm includes a first end, a second end opposite the first end, and a load pad. The first end is pivotably coupled to the frame by a pivot pin defining a pivot axis. The load pad is adjacent the conveyor chain and positioned to contact flights passing the load pad. The flights contacting the load pad exert a force on the reaction in a direction that is perpendicular to the pivot axis. The load sensing pin is coupled to the reaction arm such that the load sensing pin senses the force that is exerted by the flights.
    • 用于链式输送机的链式张力传感器,该输送机包括具有多个飞行的框架和链条。 张力传感器包括反作用臂和负载传感销。 反作用臂包括第一端,与第一端相对的第二端和负载垫。 第一端通过限定枢转轴线的枢轴枢转地联接到框架。 负载垫与输送链相邻并且定位成与经过负载垫的接触点接触。 与负载垫接触的飞行器在垂直于枢转轴线的方向上对反作用力施加力。 负载感测销耦合到反作用臂,使得负载感测销感测到由翼片施加的力。