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71. 发明授权

US5544323A High bit rate ethernet connection 失效
标题翻译：高比特率以太网连接
公开(公告)号：US5544323A
公开(公告)日：1996-08-06
申请号：US126176
申请日：1993-09-23
申请人： Robert Heaton , Nariman Yousefi , Khosrow Sadeghi , David Fischer
发明人： Robert Heaton , Nariman Yousefi , Khosrow Sadeghi , David Fischer
IPC分类号： H04L7/06 , H04L12/413 , H04L12/44 , G06F13/00
CPC分类号： H04L12/44 , H04L12/413 , H04L7/06 , Y10S370/902
摘要： In a fast Ethernet, each station is connected to the hub by four unshielded twisted pairs. A first pair is transmit only for the station and receive only for the hub, a second pair is transmit only for the hub and receive only for the station, and the third and fourth pairs are bidirectional. Both the station and the hub use their transmit only and the bidirectional pairs for data transmission and their receive only pair for collision detection.
摘要翻译：在快速以太网中，每个站通过四个非屏蔽双绞线连接到集线器。第一对是仅为站发送并且仅为集线器接收，第二对仅针对集线器进行发送，并仅为站接收，并且第三和第四对是双向的。站和集线器都使用它们的发送和双向对进行数据传输，并且它们的接收只对用于冲突检测。

72. 发明授权

US5259450A Vented packer for sampling well 失效
标题翻译：通风封隔器采样井
公开(公告)号：US5259450A
公开(公告)日：1993-11-09
申请号：US946898
申请日：1992-09-17
申请人： David Fischer
发明人： David Fischer
IPC分类号： E21B33/127 , E21B43/12 , E21B49/08 , E21B34/00
CPC分类号： E21B49/084 , E21B33/127 , E21B43/121
摘要： There is provided an apparatus for obtaining liquid samples from a well which incorporates a vented packer. The packer reduces the amount of groundwater which must be pumped by the pump of the apparatus in order to purge the well by isolating the input of the pump to a reduced volume of groundwater. The region below the packer, which is the region in communication with the pump, is vented to the atmosphere in order to permit the pump to operate at its maximum pumping rate regardless of the recovery rate of the well. The venting of the packer eliminates the condition where the pump is trying to pull a vacuum due to a low recovery rate of the well.
摘要翻译：提供了一种用于从井中获得液体样品的装置，其包括通气封隔器。封隔器减少了必须由设备的泵泵送的地下水量，以便通过将泵的输入隔离成减少体积的地下水来清除井。与泵连通的区域下方的封隔器下方的区域被排放到大气中，以便允许泵以其最大泵送速率运行，而与井的回收率无关。封隔器的排放消除了由于井的回收率低而泵试图拉动真空的状况。

73. 发明授权

US5158308A Device for clampingly centering 失效
标题翻译：用于夹紧中心的装置
公开(公告)号：US5158308A
公开(公告)日：1992-10-27
申请号：US491313
申请日：1990-03-09
申请人： David Fischer , Rudolf Kohlert
发明人： David Fischer , Rudolf Kohlert
IPC分类号： B23B31/16
CPC分类号： B23B31/16287 , Y10T279/1291 , Y10T279/19 , Y10T279/1973 , Y10T279/26
摘要： A centering and clamping device is provided which comprises a plurality of rod elements, a plurality of clamping slides and reversing and non-reversing transmission elements between the rod elements and clamping slides to convert motion of the rod elements into centering and clamping motion of the clamping slides. Each of the rod elements are in engagement with some of the other rod elements whereby movement of one rod element can transmit motion to at least one other rod element. Various arrangements of the rod elements, slides and transmission elements are disclosed to achieve centering and clamping.
摘要翻译：提供一种定心和夹紧装置，其包括多个杆元件，多个夹紧滑块以及在杆元件和夹紧滑块之间的反向和不反转传动元件，以将杆元件的运动转换成夹紧的定心和夹紧运动幻灯片。每个杆元件与一些其他杆元件接合，由此一个杆元件的移动可以将运动传递到至少一个其它杆元件。公开了杆元件，滑块和传动元件的各种布置以实现定心和夹紧。

74. 发明授权

US5060958A Power drive and transmission unit for self centering clamps and chucks 失效
标题翻译：用于自动对中夹具和卡盘的动力传动和传动单元
公开(公告)号：US5060958A
公开(公告)日：1991-10-29
申请号：US506672
申请日：1990-04-09
申请人： David Fischer , Rudolf Kohlert
发明人： David Fischer , Rudolf Kohlert
IPC分类号： B23B31/16 , B25B1/08 , B25B1/18
CPC分类号： B23B31/16287 , B25B1/08 , B25B1/18 , Y10T279/1291 , Y10T279/19 , Y10T279/275
摘要： A power drive and transmission unit for self centering clamps and chucks has a housing with a cylindrical bore and a piston which is rotatably mounted therein and is acted upon by two linear operating, piston cylinder drives to obtain rotation of the rotating piston in one or the opposite direction. Two or three linearly moving central slide elements which are mounted on said housing for obtaining the centering chuck action elements are connected to the rotating piston by means of pins running in oblong slots in order to convert the rotation of the rotating piston into oppositely linear motion of the slide elements, so that they move towards or away from a common center depending on the direction of rotation of the rotating piston.
摘要翻译：用于自对中夹具和卡盘的动力驱动和传动单元具有带圆柱形孔的壳体和可旋转地安装在其中的活塞，并由两个直线运动的活塞缸驱动器作用，以使旋转活塞在一个或多个相反的方向。安装在所述壳体上以获得定心卡盘动作元件的两个或三个直线运动的中心滑动元件通过在长方形槽中延伸的销连接到旋转活塞，以便将旋转活塞的旋转转换成相对的线性运动滑动元件，使得它们根据旋转活塞的旋转方向朝向或远离公共中心移动。

75. 发明授权

US4401212A Two bottle carrier 失效
标题翻译：两瓶载体
公开(公告)号：US4401212A
公开(公告)日：1983-08-30
申请号：US352175
申请日：1982-02-25
申请人： David Fischer
发明人： David Fischer
IPC分类号： B65D71/40 , B66C1/10 , B65D75/00 , B65D85/62
CPC分类号： B65D71/40
摘要： A bottle carrier is formed by means of first and second panels interconnected by a longitudinally extending fold line. The first panel is provided with a first pair of aperatures spaced longitudinally and symetrically positioned on opposite sides of a transverse line substantially perpendicular to the fold line while the second panel is provided with a second pair of aperatures (larger than the first pair) spaced longitudinally on the second panel symetrically on opposite sides of the transverse line. Connecting passages traverse the longitudinal fold line and connect adjacent of said first and second aperatures. These connecting passages slope from a first aperature towards the adjacent second aperature in a direction away from the transverse line. A portion of the boundary of each of the passages adjacent to the transverse line in the second panel are spaced further from the center line than the boundary of the passages formed in the first panel, the aperatures are positioned and sized so that with necks of bottles passing through said first aperatures, said second panel may be folded on said longitudal fold line into overlying relationship with said first panel with a portion of said neck projecting through the adjacent of the second aperatures and said portion of the boundaries of each of said passages in said second panel positioned to overly an adjacent portion of each of said passages in said first panel to reduce the effective width of said passages and thereby to retain a bottle therein.
摘要翻译：通过由纵向延伸的折叠线相互连接的第一和第二面板形成瓶子托架。第一面板设置有第一对纵向和对称地定位在基本上垂直于折叠线的横向线的相对侧上的温度，而第二面板设置有第二对温度（大于第一对），纵向间隔开在第二个面板上，在横向线的相对两侧相对对准。连接通道穿过纵向折叠线并连接在所述第一和第二温度附近。这些连接通道在远离横向线的方向上从第一个温度向相邻的第二个温度倾斜。与第二面板中的横向线相邻的每个通道的边界的一部分距中心线比形成在第一面板中的通道的边界更远，所述孔的位置和尺寸使得与瓶颈穿过所述第一孔，所述第二面板可以在所述纵向折叠线上折叠成与所述第一面板的覆盖关系，所述颈部的一部分突出穿过邻近的第二孔和所述每个所述通道的边界部分所述第二面板位于所述第一面板中的每个所述通道的相邻部分上，以减小所述通道的有效宽度，从而将瓶子保持在其中。

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