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1. 发明授权

US3618683A Button bit 失效
标题翻译：按钮位
公开(公告)号：US3618683A
公开(公告)日：1971-11-09
申请号：US3618683D
申请日：1968-12-16
申请人： INGERSOLL RAND CO
发明人： HUGHES ROBERT W
IPC分类号： E21B10/56 , E21C13/00
CPC分类号： E21B10/56
摘要： A percussive rock drill bit of a type generally known in the art as a button bit wherein a plurality of wear-resistant metal inserts project from the working face of the drill bit. An elastomeric sleeve surrounds that portion of the sides of the insert which is embedded in the bit body. There is metal to metal contact be between the end of the insert and the bit body for transmitting blow energy from the bit body to the insert.

3. 发明授权

US3683466A Hydraulic centralizer 失效
标题翻译：液压中心机
公开(公告)号：US3683466A
公开(公告)日：1972-08-15
申请号：US3683466D
申请日：1970-10-08
申请人： INGERSOLL RAND CO
发明人： HUGHES ROBERT W
IPC分类号： E21B19/16 , E21B33/03
CPC分类号： E21B19/16
摘要： The centralizer comprises a pair of mutually engaging arms, movable by a hydraulic-fluid powered piston rod, for closure about a drill rod. The arms have resiliently loaded, extending pins therein which engage to inhibit an abutting closure of the arms upon each other, when powered by a first hydraulic supply. When powered by a second hydraulic supply, the pins are caused to retract into the arms, and the arms do close to an almost abutting disposition. In this latter operation, the arms grip and restrain a drill rod coupling disposed therebetween to facilitate a coupling (or uncoupling) of a drill rod therewith (or therefrom).
摘要翻译：扶正器包括一对相互接合的臂，可通过液压动力的活塞杆移动，用于围绕钻杆闭合。臂具有弹性加载，在其中延伸的销，其接合以在由第一液压供应源供电时阻止臂彼此相对的关闭。当由第二液压供应器供电时，引脚被缩回到臂中，并且臂确实接近几乎相邻的配置。在后一种操作中，臂夹持并限制设置在其间的钻杆联接件，以便于与其（或从其）联接（或解耦）钻杆。

6. 发明授权

US3650576A Liner for aluminum drill guide feed 失效
标题翻译：铝合金钻孔引导线
公开(公告)号：US3650576A
公开(公告)日：1972-03-21
申请号：US3650576D
申请日：1970-11-20
申请人： INGERSOLL RAND CO
发明人： HUGHES ROBERT W
IPC分类号： E21B7/02 , E21B19/24 , F16C29/02 , F16C29/00
CPC分类号： E21B19/24 , F16C29/02
摘要： A replaceable wear resistant liner for the wearing surface of an aluminum guide feed used on rock drills.
摘要翻译：用于岩石钻头的铝导向进给器的磨损表面的可更换的耐磨衬里。

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