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1. 发明授权

US07283555B2 Method and apparatus for determining a polling interval in a network management system 有权
标题翻译：用于确定网络管理系统中的轮询间隔的方法和装置
公开(公告)号：US07283555B2
公开(公告)日：2007-10-16
申请号：US10179440
申请日：2002-06-25
申请人： Robert J. Duncan , Christopher R. Linzell , David J. Stevenson , Iain Hogg
发明人： Robert J. Duncan , Christopher R. Linzell , David J. Stevenson , Iain Hogg
IPC分类号： H04L12/42
CPC分类号： H04L41/0213 , H04L41/12 , H04L43/10 , H04L43/103 , H04Q3/0087 , H04Q2213/13092 , H04Q2213/13093 , H04Q2213/13196 , H04Q2213/13349 , H04Q2213/13389
摘要： A method and apparatus for determining a time interval for periodically polling a device on a network 1 is described. The method determines the most restrictive link on the path to the network device, the level of restrictiveness of a link being dependent on the nature of the link, such as the link speed and link type. The time interval between polling is determined based on the nature of the most restrictive link. Thus, the time interval can be determined according to the type and speed of the links between the polling device, which in a preferred embodiment is a network management station, and the polled device on the network 1.
摘要翻译：描述了一种用于确定用于周期性地轮询网络1上的设备的时间间隔的方法和装置。该方法确定到网络设备的路径上的最严格的链路，链路的限制级别取决于链路的性质，例如链路速度和链路类型。轮询之间的时间间隔是基于限制性最强的链路的性质来确定的。因此，可以根据轮询设备（在优选实施例中为网络管理站）和网络1上的轮询设备之间的链路的类型和速度来确定时间间隔。

2. 发明授权

US4446990A Self-defense spray device 失效
标题翻译：自卫喷雾装置
公开(公告)号：US4446990A
公开(公告)日：1984-05-08
申请号：US373712
申请日：1982-04-03
申请人： David J. Stevenson , Robert E. Domian
发明人： David J. Stevenson , Robert E. Domian
IPC分类号： F41H9/10 , B67B7/28
CPC分类号： F41H9/10
摘要： A device for spraying a noxious powder includes a housing for a CO.sub.2 cartridge, and a moveable barrel which carries a firing pin by which the cartridge can be punctured to explosively release the gas. The barrel has a nozzle at its outer end, and contains the noxious powder in a chamber defined between the barrel and the firing pin. When the barrel is released from an outwardly extended position it is thrust by a spring against the rupturable end of the cartridge, thereby releasing the gas which in turn propels the active agent through the nozzle and toward the assailant at whom it is aimed. Generally, a powdered tear gas will be employed in the device.
摘要翻译：用于喷洒有害粉末的装置包括用于二氧化碳筒的壳体和可移动的筒体，其携带击打销，所述筒体可被刺穿以爆炸地释放气体。枪管在其外端具有喷嘴，并且在筒体和撞针之间的腔室内容纳有害粉末。当桶从向外延伸的位置释放时，其被弹簧推靠在筒的可破裂的端部上，从而释放气体，这又引起活性剂通过喷嘴并朝向其目的的凶手。通常，在该装置中将使用粉末状的催泪瓦斯。

3. 发明授权

US4324133A Torque measuring device 失效
标题翻译：扭矩测量装置
公开(公告)号：US4324133A
公开(公告)日：1982-04-13
申请号：US150625
申请日：1980-05-16
申请人： David J. Stevenson
发明人： David J. Stevenson
IPC分类号： G01L3/00 , G01L3/16 , G01L3/02
CPC分类号： G01L3/16
摘要： A torque measuring device is disclosed wherein a torque of a rotating member rotating about an axis is measured. The device includes a support member which is attached to a fixed object such as a stationary frame by at least two linkage arms. Each linkage arm is pivotably attached at a first point of attachment to the fixed object and at a second point of attachment to the support member. The relative positioning of the rotating member, the support member, and the linkage arms is such that geometrical lines interconnecting the respective first and second points of attachment of each linkage arm substantially intersect the axis of the rotating member. The rotating member is in an operative relationship with the support member so that the rotating member during its rotation imparts a force to the support member, which attempts to rotate the support member.An instantaneous center of rotation of the support member coincides with the axis of rotation of the rotating member. A load cell or like force measuring device is interposed between the support member and the fixed object to measure the force imparted to the support member by the rotating member. The load cell and the linkage arms prevent substantial displacement of the support member even though the measured force may vary substantially. From the measured force and a known and constant lever arm of the force the torque of the rotating member is readily calculated.
摘要翻译：公开了一种扭矩测量装置，其中测量围绕轴线旋转的旋转部件的转矩。该装置包括支撑构件，其通过至少两个连杆臂附接到诸如固定框架的固定物体。每个联动臂可在第一连接点处可枢转地连接到固定物体上，并在与支撑构件相连接的第二点处。旋转构件，支撑构件和连接臂的相对定位使得互连每个联动臂的相应第一和第二连接点的几何线基本上与旋转构件的轴线相交。旋转构件与支撑构件处于可操作的关系，使得旋转构件在其旋转期间向支撑构件施加力，这试图使支撑构件旋转。支撑构件的瞬时旋转中心与旋转构件的旋转轴线重合。负载传感器或类似的力测量装置插入在支撑构件和固定物体之间，以测量由旋转构件施加到支撑构件的力。测力传感器和连接臂防止支撑构件的实质位移，即使所测量的力可能显着变化。根据测量的力和力的已知和恒定的杠杆臂，容易地计算旋转构件的扭矩。

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