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1. 发明授权

US4505339A Hydraulic control for a dozer blade 失效
标题翻译：推土铲的液压控制
公开(公告)号：US4505339A
公开(公告)日：1985-03-19
申请号：US388569
申请日：1982-06-14
申请人： Lee F. Kramer , Ronald K. Schantz , Steven C. Kirkham , Charles M. Tschanz
发明人： Lee F. Kramer , Ronald K. Schantz , Steven C. Kirkham , Charles M. Tschanz
IPC分类号： E02F3/84 , E02F3/76 , F16B11/00
CPC分类号： E02F3/844
摘要： A hydraulic circuit for pitch and tilt control of a dozer blade attached to push arms on a vehicle with a pitch ram connected between one push arm and the blade and a dual actuator consisting of a second pitch ram and a tilt ram connected at their head ends. A pitch valve directs hydraulic fluid to and from the pitch rams with a diverter/combiner valve interposed therebetween to assure a flow of fluid either to said rams or from said rams at equal rates. Pilot-operated check valves hydraulically lock the pitch rams until opened by pressure directed from said pitch valve. Tilt and lift valves directs fluid pressure to and from the tilt ram and a lift ram respectively with regeneration capability for both tilt and lift functions.
摘要翻译：一种用于俯仰和倾斜控制的液压回路，其连接到车辆上的推动臂上，所述推土铲具有连接在一个推动臂和叶片之间的桨距推杆，以及由其第二俯仰柱塞和在其头部连接的倾斜柱塞的双重致动器。节流阀将液压流体引导到沥青柱塞，并且其间插入有分流器/组合阀，以确保流体流动到所述的公柱或以相等的速率从所述的柱塞流出。先导式止回阀以液压方式锁定间距柱，直到从所述节流阀引导的压力打开。倾斜和提升阀将流体压力引导到倾斜压头和升降压头，并且具有用于倾斜和提升功能的再生能力。

2. 发明授权

US4400898A Bucket pivot assembly 失效
标题翻译：铲斗枢轴组件
公开(公告)号：US4400898A
公开(公告)日：1983-08-30
申请号：US292454
申请日：1981-08-13
申请人： Robert B. Christensen , Lee F. Kramer
发明人： Robert B. Christensen , Lee F. Kramer
IPC分类号： E02F9/00 , F16C11/04 , E02F3/00 , F16C11/02
CPC分类号： E02F9/006 , F16C11/045 , Y10T403/32918 , Y10T403/32926
摘要： A pivot assembly for mounting a bucket to a loader arm wherein shouldered pin adapters having a pin bore are tack welded in the bucket brackets so that when pounding occurs between the pin and pin bore, the pin adapter can be replaced to provide a new pin bore. The pin adapters are located on the interior sides of the bucket brackets and the external corner is indented to define a seal groove which provides an additional seal between the loader arm and the pivot pin.
摘要翻译：一种用于将铲斗安装到装载臂的枢轴组件，其中具有销孔的带肩针销适配器被定位焊接在铲斗托架中，使得当销和销孔之间发生冲击时，可以更换销适配器以提供新的销孔。销适配器位于铲斗支架的内侧，并且外部角部被缩进以限定密封槽，其在装载臂和枢轴销之间提供额外的密封。

3. 发明授权

US4395193A Material handling bucket 失效
标题翻译：物料搬运桶
公开(公告)号：US4395193A
公开(公告)日：1983-07-26
申请号：US251004
申请日：1981-04-03
申请人： Robert B. Christensen , Lee F. Kramer
发明人： Robert B. Christensen , Lee F. Kramer
IPC分类号： E02F3/40 , B66F9/06
CPC分类号： E02F3/401
摘要： A stress distributing plate member for a bucket tilting hinge bracket attached to the exterior wall of a material handling bucket.
摘要翻译：一种用于铲斗倾斜铰链支架的应力分布板构件，其附接到材料处理桶的外壁。

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