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31. 发明授权

US5046322A Electronic refrigerant transfer scale 失效
标题翻译：电子制冷剂转移秤
公开(公告)号：US5046322A
公开(公告)日：1991-09-10
申请号：US348555
申请日：1989-05-08
申请人： Don A. Bulla , Byron J. Dunham , Gary P. Murray
发明人： Don A. Bulla , Byron J. Dunham , Gary P. Murray
IPC分类号： F25B45/00 , G01G17/06
CPC分类号： F25B45/00 , G01G17/06 , F25B2345/001 , F25B2345/002 , F25B2345/003 , F25B2345/0051
摘要： An electronic scale assembly for transferring refrigerant charge between a tank and refrigeration equipment under service comprises a generally rectangular enclosure that includes a handle positioned along one side edge of the enclosure for manually transporting the scale, and a cover for selectively opening and closing the enclosure. A scale includes a platform mounted within the enclosure at a position to support a refrigerant tank when the cover is open, and a strain gage sensor for providing an electrical signal as function of weight supported by the platform. A solenoid-operated refrigerant transfer valve is mounted within the enclosure for connection between a tank mounted on the scale platform and refrigeration equipment under service for selectively transferring refrigerant between the tank and the equipment through the valve. An electronic controller is responsive to the electrical scale signal for indicating weight of refrigerant transferred through the valve. The electronic controller includes facility for operator programming of a selected charge transfer quantity, opening the solenoid valve upon initiation of a charging operation, and monitoring the scale signal for automatically closing the transfer valve responsive to a change in the scale signal corresponding to the programmed transfer refrigerant quantity.
摘要翻译：用于在储罐和正在使用的制冷设备之间输送制冷剂填充物的电子秤组件包括大致矩形的外壳，其包括沿壳体的一个侧边缘定位的手柄，用于手动输送秤，以及用于选择性地打开和关闭外壳的盖。标尺包括安装在外壳内的平台，其在盖打开时支撑制冷剂罐的位置，以及应变计传感器，用于提供作为由平台支撑的重量的函数的电信号。电磁操作的制冷剂转移阀安装在外壳内，用于在安装在秤台上的罐和正在使用的制冷设备之间连接，用于通过阀选择性地在罐和设备之间输送制冷剂。电子控制器响应于电气标度信号以指示通过阀传递的制冷剂的重量。电子控制器包括用于操作员编程所选择的电荷转移量的设备，在开始充电操作时打开电磁阀，以及响应于与编程转移相对应的标度信号的变化来监视秤信号以自动关闭转换阀制冷剂量。

32. 发明授权

US4551898A Crankshaft seal installing tool 失效
标题翻译：曲轴密封安装工具
公开(公告)号：US4551898A
公开(公告)日：1985-11-12
申请号：US577159
申请日：1984-02-06
申请人： Lawrence A. Provost
发明人： Lawrence A. Provost
IPC分类号： B25B27/00
CPC分类号： B25B27/0028 , Y10T29/53657 , Y10T29/53878
摘要： A tool for installing an oil seal for an internal combustion engine crankshaft wherein an adapter is affixed to the end of the crankshaft having a cylindrical guide surface upon which the seal is initially located axially positioning the seal in alignment with a recess in which it is to be received. A ram axially movable upon the adapter is translated by a wing nut to displace the seal from the adapter guide surface into the seal recess while maintaining the proper orientation of the seal throughout the entire installation procedure.
摘要翻译：一种用于安装用于内燃机曲轴的油封的工具，其中适配器固定到具有圆柱形引导表面的曲轴的端部，所述密封件初始定位在所述圆柱形引导表面上，轴向将所述密封件定位成与其中的凹部对准被接收。在适配器上可轴向移动的冲头通过翼形螺母平移，以将密封件从适配器引导表面移动到密封凹部中，同时在整个安装过程中保持密封件的正确取向。

33. 外观设计

USD260725S Strut spring compressor 失效
公开(公告)号：USD260725S
公开(公告)日：1981-09-15
申请号：US5345
申请日：1979-01-22
申请人： David S. Kemmer
设计人： David S. Kemmer

34. 外观设计

USD257960S Transmission shim selector 失效
公开(公告)号：USD257960S
公开(公告)日：1981-01-20
申请号：US838
申请日：1979-01-04
申请人： Joel S. Johnson
设计人： Joel S. Johnson

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