公开(公告)号：US4950111A

公开(公告)日：1990-08-21

申请号：US462973

申请日：1990-01-05

申请人： Robert E. Thomas

发明人： Robert E. Thomas

IPC分类号： B23B51/00 ,  B27G15/00

CPC分类号： B23B51/00 ,  B27G15/00 ,  B23B2251/14 ,  Y10T408/8957 ,  Y10T408/90 ,  Y10T408/9065

摘要： An improved drill bit for wood boring or boring in other relatively soft material, having a generally cylindrical shaft (20), with a flattened blade portion at one end (24). The blade portion (24) is broad and flat with essentially parallel side surfaces (41,42) and having negatively beveled edges along the length of such side surfaces, such side surfaces giving way to a modified end edge. The modified end edge includes a center spur that is of rectangular cross section, with a length of one half to several times the thickness of the blade, and said spur (34) is centered on the end edge and is made with a concave tip (35). The edges of the center spur are parallel from vertex (36) to base. Outer spurs of rectangular cross section (29 and 30) with a negative bevel away from the leading edge are located on the lateral extremities of the end edge. Radially extending cutting surfaces (45 and 46) with a negative bevel away from the leading edge (37 and 38) extend at right angles from the base of the center spur to the inside edge of the outer spurs.

摘要翻译： 一种改进的钻头，用于在其他相对软的材料中用于木材钻孔或钻孔，其具有大致圆柱形的轴（20），在一端（24）具有扁平的叶片部分。 刀片部分（24）宽且平坦，具有基本上平行的侧表面（41,42），并且沿着这些侧表面的长度具有负斜面的边缘，这样的侧表面给予修改的端部边缘。 修改的端边缘包括具有矩形横截面的中心支线，其长度为叶片厚度的一半至几倍，并且所述支线（34）在端边缘上居中并且由凹入尖端（ 35）。 中心支线的边缘从顶点（36）到基座平行。 具有远离前缘的负斜面的矩形横截面（29和30）的外刺位于末端边缘的两侧。 远离前缘（37和38）的具有负斜面的径向延伸的切割表面（45和46）从中心支线的基部到外部马刺的内边缘成直角地延伸。

公开(公告)号：US4300690A

公开(公告)日：1981-11-17

申请号：US121102

申请日：1980-02-13

申请人： Robert E. Thomas

发明人： Robert E. Thomas

IPC分类号： A47F7/024 ,  E05B69/00

CPC分类号： A47F7/024 ,  E05B69/006 ,  Y10T70/5013

摘要： A security display rack comprising an elongated support member appropriately elevated above a supporting surface and an elongated locking member. The support member has an elongated surface and a plurality of grooves extending through the support member and opening at the elongated surface. Each of these grooves is adapted to have at least a portion of an article inserted therein with the grooves spacing the articles along the support member. The locking member is mounted for movement so that it can open and at least partially close the open ends of the grooves. The locking member has a closed position in which it lies along the elongated surface of the support member and at least partially closes the open ends of the grooves. In the closed position, the articles inserted into the grooves either cannot be withdrawn from the support member of their withdrawal is impeded. The locking member can be locked in the closed position.

摘要翻译： 一种安全展示架，包括在支撑表面上适当地升高的细长支撑构件和细长锁定构件。 支撑构件具有细长表面和延伸穿过支撑构件并在细长表面处开口的多个凹槽。 这些凹槽中的每一个适于具有插入其中的制品的至少一部分，其中凹槽沿着支撑构件间隔物品。 锁定构件安装成运动，使得其可以打开并且至少部分地关闭凹槽的开口端。 锁定构件具有闭合位置，在该位置中，锁定构件沿着支撑构件的细长表面定位并且至少部分地封闭凹槽的开口端。 在关闭位置，插入凹槽中的物品或者不能从其支撑构件中撤出它们的抽出被阻止。 锁定构件可以锁定在关闭位置。

公开(公告)号：US4038982A

公开(公告)日：1977-08-02

申请号：US637208

申请日：1975-12-03

申请人： George K. Burke ,  Robert J. LeFevre ,  Robert E. Thomas ,  James W. Turner ,  Peter L. Krohn

发明人： George K. Burke ,  Robert J. LeFevre ,  Robert E. Thomas ,  James W. Turner ,  Peter L. Krohn

IPC分类号： A61M5/00 ,  A61M5/168 ,  A61M5/14

CPC分类号： A61M5/1689 ,  Y10S128/13 ,  Y10T137/7761

摘要： An electronically controlled intravenous infusion set of the gravity feed type having a flow path including a drip chamber and an internal valve for regulating flow through the set. Electromagnetic valve operating structure, positioned outside the IV set, controls the internal valve in response to an electronic control system. The electronic control system serves to open the valve to allow a drop to fall, and includes a control circuit. The control circuit includes an optical drop detector, associated with but positioned outside the drip chamber, which senses the falling drop and signals the control circuit to close the valve. The control circuit also includes a variable frequency clock and associated digital selectors for affording an attendant the ability to precisely select a desired drip rate. An alarm system, operating on digital principles, senses high drop rate or low drop rate conditions and, in response thereto, puts the control system into an alarm condition. The alarm system includes means for digitally adjusting the sensitivity thereof to provide high sensitivity at low drip rates but to decrease the sensitivity at higher rates so that premature alarm conditions are avoided.

摘要翻译： 一种具有流路的重力进料型电子控制静脉输注装置，该流路包括滴水室和用于调节流过该组的内部阀。 位于IV组外的电磁阀操作结构根据电子控制系统控制内阀。 电子控制系统用于打开阀门以允许液滴落下，并且包括控制电路。 该控制电路包括一个光学滴落检测器，该光学滴落检测器与滴液室相关联，但位于滴液室外部，该检测器检测掉落下降并且指示控制电路关闭阀门。 控制电路还包括可变频率时钟和相关联的数字选择器，用于为服务员提供精确选择所需滴流速率的能力。 以数字原理操作的报警系统可以感测高压降率或低下降率条件，并且响应于此，将控制系统置于报警状态。 报警系统包括用于数字调节其灵敏度的装置，以低滴流率提供高灵敏度，但是以更高的速率降低灵敏度，从而避免过早的报警状况。

公开(公告)号：US6167049A

公开(公告)日：2000-12-26

申请号：US972663

申请日：1997-11-18

申请人： Tong-Bi Pei ,  Kohei Abe ,  Robert E. Thomas

发明人： Tong-Bi Pei ,  Kohei Abe ,  Robert E. Thomas

IPC分类号： H04L12/56 ,  H04Q11/04 ,  H04L12/28

CPC分类号： H04L12/5602 ,  H04L2012/5638 ,  H04L2012/5679 ,  H04Q11/0478

摘要： A scheduler in accord with the invention schedules available bit rate (ABR) traffic over an asynchronous transfer mode (ATM) link in such a manner as to provide circuits having the ABR traffic service a minimum cell rate (MCR) that may be greater than zero. The scheduler uses static scheduling information to schedule traffic for high priority services, such as constant bit rate service. The static information also specifies transmit opportunities for an ABR circuit, in a manner analogous to that for CBR traffic. The statically scheduled transmit opportunities provide a negotiated minimum cell rate that is greater than zero, for the ABR circuit. The scheduler maintains dynamic scheduling information, which it uses to schedule traffic in otherwise available transmit times. For example, the scheduler may use the dynamic information to create a work list of virtual circuit connections for ABR service. During any cell transmit time that is not used by a higher priority service (e.g. CBR or MCR), the scheduler goes to the work list to find a circuit with a cell ready for transmission and initiates transmission of the cell for that circuit. The ABR circuit having a non-zero MCR receives service from the statically scheduled opportunities and from the dynamically scheduled opportunities.

摘要翻译： 根据本发明的调度器以异步传输模式（ATM）链路调度可用比特率（ABR）业务，以便提供具有ABR业务业务的电路，其可以大于零的最小信元速率（MCR） 。 调度器使用静态调度信息来调度高优先级业务的流量，例如恒定比特率服务。 静态信息还以类似于CBR业务的方式为ABR电路指定发送机会。 对于ABR电路，静态调度的发送机会提供大于零的协商的最小信元速率。 调度器维护动态调度信息，其用于在可用的传输时间内调度流量。 例如，调度器可以使用动态信息来创建用于ABR服务的虚拟电路连接的工作列表。 在不被较高优先级服务（例如CBR或MCR）使用的任何小区发送时间期间，调度器进入工作列表以找到具有准备好传输的小区的电路，并且启动用于该电路的小区的传输。 具有非零MCR的ABR电路从静态调度的机会和动态调度的机会接收服务。

公开(公告)号：US5796966A

公开(公告)日：1998-08-18

申请号：US850975

申请日：1997-05-05

申请人： Robert Simcoe ,  Robert E. Thomas ,  George Varghese

发明人： Robert Simcoe ,  Robert E. Thomas ,  George Varghese

IPC分类号： H04L12/18 ,  H04L12/935 ,  H04L12/937 ,  G06F13/00

CPC分类号： H04L12/1881 ,  H04L49/254 ,  H04L49/30

摘要： A mechanism for operating a configurable switch to dynamically (i) route each of the data packets in an ordered string from a particular switch input port through a selected member output port of a hunt group; and (ii) route data packets which need not be transmitted in order from the input ports to available member output ports of the hunt group, as the members become available. A controller assigns each input port a service number, and directs member output ports to handle requests for ordered data packet transmissions from input ports with particular service numbers, such that the ordered transfers from an input port are handled by a single member of each group. The input port broadcasts, through the switch, a request to send ordered data packets through a particular hunt group and includes its service number in the request. The group member assigned to handle ordered transfers from the input port responds by identifying itself. Thereafter, the input port sends its ordered data packets to the identified member. Unordered data packets are queued and routed dynamically through the members of the group, as the members become available. In a local area network, data is sent from a source station to file servers using server group identifiers for multiple-route transfers or individual server identifiers for single-route transfers.

摘要翻译： 一种用于操作可配置交换机的机制，用于动态地（i）将来自特定交换机输入端口的有序字符串中的每个数据分组路由到寻线组的所选成员输出端口; 以及（ii）当成员变得可用时，将从搜索组的输入端口到可用成员输出端口的顺序的数据包路由不需要传送。 控制器为每个输入端口分配服务号码，并​​指示成员输出端口处理来自具有特定服务号码的输入端口的有序数据分组传输的请求，使得来自输入端口的有序传输由每个组的单个成员处理。 输入端口通过交换机广播通过特定寻线组发送有序数据包的请求，并在请求中包括其服务号码。 分配给处理来自输入端口的有序传输的组成员通过识别自身进行响应。 此后，输入端口向已识别的成员发送其有序数据包。 随着成员可用，无序数据包将通过组的成员进行排队和路由。 在局域网中，使用用于多路由传输的服务器组标识符或单路传输的单个服务器标识符将数据从源站发送到文件服务器。

公开(公告)号：US5151899A

公开(公告)日：1992-09-29

申请号：US654067

申请日：1991-02-11

申请人： Robert E. Thomas ,  George Varghese ,  Robert J. Souza ,  George A. Harvey

发明人： Robert E. Thomas ,  George Varghese ,  Robert J. Souza ,  George A. Harvey

IPC分类号： H04L1/18 ,  H04L29/06

CPC分类号： H04L1/1835 ,  H04L29/06

摘要： A packet data communication network employs sequence numbers in message packets to identify the packets transmitted for a message, so that the order of packets can be checked, and so that the occurrence of lost or duplicated packets can be detected. A method of keeping track of these sequence numbers is provided. Any number below or above a bounded sequence number acceptance window is ignored (not accepted). Bit maps are established for the range of numbers within the bounded window, each bit representing a sequence number and the bit maps indexed by sequence number. One bit map is a received packet map, used to keep track of which sequence numbers have been received and thus to filter duplicate sequence numbers. An end-of-message bit map is used to record the positions of packets having end-of-message flags, and this is used with the received packet map to determine whether all packets of a message have been received, so that an end-of-message trigger can be generated. The sequence number and an end-of-message flag from an incoming packet are used to update these bit maps as each packet is received, then the updated bit maps used to determine the needed action. Two methods are described for tracking these sequence numbers. Both methods have good average-case performance. The first method uses an iterative loop and is more suited for software implementation. The second method uses table lookup to replace the iterative loop and is more suited for hardware implementation. This method has very good worst-case performance.

摘要翻译： 分组数据通信网络使用消息分组中的序列号来识别针对消息发送的分组，从而可以检查分组的顺序，从而可以检测到丢失或重复分组的发生。 提供了跟踪这些序列号的方法。 任何低于或高于有界序列号接受窗口的数字将被忽略（不接受）。 为有界窗口内的数字范围建立位图，每个位表示一个序列号，并且由序列号索引的位图。 一个位图是接收到的分组映射，用于跟踪已经接收到哪个序列号，并且因此过滤重复的序列号。 消息结束位映射用于记录具有消息结束标志的分组的位置，并且与接收到的分组映射一起使用以确定是否已经接收到消息的所有分组， 可以生成消息触发。 来自分组的序列号和消息结束标志用于在接收到每个分组时更新这些位图，然后使用更新的位映射来确定所需的动作。 描述了两种跟踪这些序列号的方法。 两种方法都具有良好的平均性能。 第一种方法使用迭代循环，更适合于软件实现。 第二种方法使用表查找来代替迭代循环，更适合于硬件实现。 这种方法具有非常好的最坏情况。

公开(公告)号：US4924463A

公开(公告)日：1990-05-08

申请号：US383439

申请日：1989-07-24

申请人： Robert E. Thomas ,  Jeffrey L. Cooper ,  Robert J. Simcoe

发明人： Robert E. Thomas ,  Jeffrey L. Cooper ,  Robert J. Simcoe

IPC分类号： H04J3/06 ,  H04L25/49

CPC分类号： H04L25/4908 ,  H04J3/0605

摘要： A data coding method for digital communication systems is disclosed. In two embodiments, every four bits of data in a first data channel are mapped to a five bit code symbol. The five bit code symbols are chosen to have a duty cycle of 40 to 60 percent. In the first embodiment, a second channel of data is optionally interleaved with the encoded first channel data by placing single bits from the second channel every sixth bit in the data stream between each five bit code symbol. A plurality of synchronizing words are each formed from other pairs of five bit code symbols, and, in the two channel embodiment, the optional two bits of data from the second channel. The synchronizing words also have a duty cycle of 40 to 60 percent, and further have the characteristic that their bit patterns can only occur where they are placed in a stream of encoded data. This enables them to be easily recognized in a data stream for both synchronization of a communication element with the encoded data stream, and conveyance of control information between elements in the system. The second channel can also be utilized for conveyance of control information, as a separate data channel, or in a third embodiment, to provide an exact 50 percent duty cycle for a "balanced" code in which every four bits of data are mapped to a six bit code symbol. The maximum run length of this code is limited to five if the second channel is used, and four if it is not used.

摘要翻译： 公开了一种用于数字通信系统的数据编码方法。 在两个实施例中，将第一数据信道中的每四位数据映射到五位代码符号。 五位代码符号被选择为具有40％至60％的占空比。 在第一实施例中，第二数据通道可选地与编码的第一通道数据交错，通过在每个五位代码符号之间的每数据流中的每第六位放置来自第二通道的单个位。 多个同步字各自由其他五比特码符号对形成，并且在两个信道实施例中，来自第二信道的可选的两位数据。 同步字还具有40至60％的占空比，并且还具有它们的位模式只能在它们被放置在编码数据流中的情况下发生的特征。 这使得它们能够容易地识别为用于通信元件与编码数据流的同步的数据流，以及系统中的元件之间的控制信息的传送。 第二通道还可以用作输送控制信息，作为单独的数据通道，或者在第三实施例中，为“平衡”代码提供精确的50％占空比，其中每四位数据映射到 六位代码符号。 如果使用第二个通道，则此代码的最大运行长度被限制为5个，如果不使用则为4个。

公开(公告)号：US4792025A

公开(公告)日：1988-12-20

申请号：US164086

申请日：1988-03-04

申请人： Robert E. Thomas

发明人： Robert E. Thomas

IPC分类号： A45C5/14 ,  A45C13/26 ,  A45C13/36 ,  A45C13/38

CPC分类号： A45C5/14

摘要： A suitcase is modified to have wheels at the bottom corners of the rear face of the suitcase, a retractable handle with an offset to secure stacked luggage against the offset, and a spring actuated folding shelf which can grip adjacent luggage items. The offset handle can be used for normal lifting when retracted and pulling when extended. Offset allows extension structure to be placed in the rear wall of the suitcase while the handle is placed in the normal central location. The offset also lowers the center of gravity of the combination, especially when other items of luggage are stacked on the extensible handle. The shelf is incorporated into the front wall, and can be folded out and down to support adjacent luggage. The shelf is spring loaded towards the closed (flush with suitcase) position, in order to secure the shelf when not in use and to grip adjacent luggage when the shelf is deployed. Wheels are placed in recessed corners using a single bracket and axle component which provides added structural integrity with minimum added weight.

摘要翻译： 手提箱被修改为在行李箱的后表面的底角处具有轮子，具有偏移的可伸缩手柄以将堆叠的行李抵靠在偏移上，以及可夹紧相邻行李物品的弹簧致动折叠架。 当伸出时，偏移手柄可用于缩回和拉伸时的正常提升。 当手柄放置在正常的中央位置时，偏移允许延伸结构放置在手提箱的后壁上。 偏移也降低了组合的重心，特别是当其他物品的行李堆放在可伸缩手柄上时。 货架装在前壁上，可折叠下来支撑相邻行李。 货架朝向封闭的（与手提箱齐平）的位置弹簧加载，以便在不使用时固定货架，并在搁置货架时夹紧相邻的行李。 使用单个支架和轴组件将轮子放置在凹入的角落中，其提供附加的结构完整性并以最小的附加重量。

公开(公告)号：USD261284S

公开(公告)日：1981-10-13

申请号：US64347

申请日：1979-08-06

申请人： Robert M. Thomas ,  Robert E. Thomas

设计人： Robert M. Thomas ,  Robert E. Thomas

公开(公告)号：US4204601A

公开(公告)日：1980-05-27

申请号：US907770

申请日：1978-05-19

申请人： Robert E. Thomas

发明人： Robert E. Thomas

IPC分类号： A47F7/024 ,  E05B69/00 ,  E05B73/00

CPC分类号： A47F7/024 ,  E05B69/006 ,  Y10T70/5009 ,  Y10T70/5013

摘要： A security display rack comprising an elongated support member appropriately elevated above a supporting surface and an elongated locking member. The support member has an elongated surface and a plurality of grooves extending through the support member and opening at the elongated surface. Each of these grooves is adapted to have at least a portion of an article inserted therein with the grooves spacing the articles along the support member. The locking member is mounted for movement so that it can open and at least partially close the open ends of the grooves. The locking member has a closed position in which it lies along the elongated surface of the support member and at least partially closes the open ends of the grooves. In the closed position, the articles inserted into the grooves either cannot be withdrawn from the support member or their withdrawal is impeded. The locking member can be locked in the closed position.

摘要翻译： 一种安全展示架，包括在支撑表面上适当地升高的细长支撑构件和细长锁定构件。 支撑构件具有细长表面和延伸穿过支撑构件并在细长表面处开口的多个凹槽。 这些凹槽中的每一个适于具有插入其中的制品的至少一部分，其中凹槽沿着支撑构件间隔物品。 锁定构件安装成运动，使得其可以打开并且至少部分地关闭凹槽的开口端。 锁定构件具有关闭位置，在该关闭位置中，锁定构件沿着支撑构件的细长表面定位并且至少部分地封闭凹槽的开口端。 在关闭位置，插入凹槽中的物品不能从支撑构件中取出，或阻止其退避。 锁定构件可以锁定在关闭位置。