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公开(公告)号:US07401863B1
公开(公告)日:2008-07-22
申请号:US11695689
申请日:2007-04-03
申请人: David R. Hall , Ronald Crockett , Jeff Jepson
发明人: David R. Hall , Ronald Crockett , Jeff Jepson
IPC分类号: E21C35/18
CPC分类号: E21C35/183 , E21C2035/1806
摘要: In one aspect of the invention, a pick comprises a shank attached to a base of a steel body, a cemented metal carbide core press fit into the steel body opposite the shank, and an impact tip bonded to a first end of the core opposite the shank. The impact tip comprises a superhard material opposite the core, and the core comprises a second end and a largest diameter. A distance through the body from the shank to the second end of the core is less than the largest diameter of the core.
摘要翻译: 在本发明的一个方面,拾取器包括附接到钢体的基部的柄,与柄相对的钢体中的胶合金属碳化物芯压合件,以及结合到芯的第一端的冲击尖端 小腿 冲击尖端包括与芯部相对的超硬材料,并且芯部包括第二端和最大直径。 通过主体从柄到芯的第二端的距离小于芯的最大直径。
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公开(公告)号:US07396086B1
公开(公告)日:2008-07-08
申请号:US11695672
申请日:2007-04-03
申请人: David R. Hall , Ronald Crockett , Jeff Jepson
发明人: David R. Hall , Ronald Crockett , Jeff Jepson
IPC分类号: E21C35/18
CPC分类号: E21C35/183 , E21C2035/1806
摘要: In one aspect of the invention, a pick comprises a shank attached to a base of a steel body, a cemented metal carbide core press fit into the steel body opposite the shank, and an impact tip bonded to a first end of the core opposite the shank. The impact tip comprises a superhard material opposite the core, and the core comprises a second end and a largest diameter. A distance through the body from the shank to the second end of the core is less than the largest diameter of the core.
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公开(公告)号:US20080035386A1
公开(公告)日:2008-02-14
申请号:US11844586
申请日:2007-08-24
申请人: David R. Hall , Ronald Crockett , Scott Dahlgren , Jeff Jepson
发明人: David R. Hall , Ronald Crockett , Scott Dahlgren , Jeff Jepson
IPC分类号: E21B10/42
CPC分类号: E21C35/183 , E21C35/19 , E21C2035/1806 , E21C2035/1826
摘要: A high impact resistant pick in a holder having a super hard material bonded to a cemented metal carbide substrate at a non-planar interface. The cemented metal carbide substrate is bonded to a front end of a cemented metal carbide bolster. A bore is formed in a base end of the carbide bolster generally opposed to the front end. A steel shank being fitted into the bore of the bolster at a bolster end of the shank, and a portion of the shank is disposed within a bore of the holder at a holder end of the shank.
摘要翻译: 具有在非平面界面处结合到胶合金属碳化物基底的超硬材料的保持器中的高抗冲击性拾取。 粘结的金属碳化物基体粘合到粘结金属碳化物垫块的前端。 在通常与前端相对的碳化物垫片的基端部形成有孔。 钢柄在所述柄的枕头端装配到所述枕垫的孔中,并且所述柄的一部分在所述柄的保持器端处设置在所述保持器的孔内。
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公开(公告)号:US07320505B1
公开(公告)日:2008-01-22
申请号:US11463990
申请日:2006-08-11
申请人: David R. Hall , Ronald Crockett , Jeff Jepson
发明人: David R. Hall , Ronald Crockett , Jeff Jepson
IPC分类号: E21C37/00
CPC分类号: E21C35/183 , B28D1/188 , E02F9/285 , E02F9/2866 , E02F9/2875 , E21C2035/1816
摘要: In one aspect of the invention, an attack tool is disclosed which comprises a wear-resistant base suitable for attachment to a driving mechanism. The wear-resistant base has a shank and a metal segment. A cemented metal carbide segment is bonded to the metal segment and the shank has a wear-resistant surface. The wear-resistant surface has a hardness greater than 60 HRc.
摘要翻译: 在本发明的一个方面,公开了一种攻击工具,其包括适于附接到驱动机构的耐磨底座。 耐磨基座具有柄和金属段。 粘结金属碳化物段与金属段结合,柄具有耐磨表面。 耐磨表面的硬度大于60HRC。
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公开(公告)号:US07231766B2
公开(公告)日:2007-06-19
申请号:US11161875
申请日:2005-08-19
申请人: David R. Hall , Timothy C. Duke , Ronald Crockett , Jeff Jepson
发明人: David R. Hall , Timothy C. Duke , Ronald Crockett , Jeff Jepson
CPC分类号: F16K31/1223 , B30B11/004 , F15B3/00 , F15B11/032 , F15B15/18 , F15B2211/40515 , F15B2211/428 , F15B2211/455 , F15B2211/46 , F15B2211/7052 , F16K31/383
摘要: The present invention includes a piston valve for charging and discharging a first fluid chamber. The piston valve includes a piston shaft and a ring comprising a seal element. The piston shaft has a first end and a second end with the first end including a counter bore having at least one vent. The ring is disposed within a cylinder and the seal element is disposed intermediate the piston shaft and the ring. The piston valve may be used for intensification purposes such as in a high pressure high temperature hydraulic cartridge.
摘要翻译: 本发明包括用于对第一流体室进行充放电的活塞阀。 活塞阀包括活塞轴和包括密封元件的环。 活塞轴具有第一端和第二端,其第一端包括具有至少一个通气口的反向孔。 环设置在气缸内,密封元件设置在活塞轴和环之间。 活塞阀可以用于增压目的,例如在高压高温液压盒中。
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公开(公告)号:US20090108664A1
公开(公告)日:2009-04-30
申请号:US11928471
申请日:2007-10-30
申请人: David R. Hall , Ronald Crockett , Jeff Jepson
发明人: David R. Hall , Ronald Crockett , Jeff Jepson
IPC分类号: E21C35/197
CPC分类号: E21C35/197 , E21C2035/1826
摘要: In one aspect of the present invention, a degradation assembly has a holder fitted within a block attached to a driving mechanism. The holder has a longitudinal central bore with an opening at an end opposite the driving mechanism. A high impact resistant tool has a carbide bolster axially intermediate a steel shank and an impact tip, the steel shank having a first end and a second end. A sleeve being radially intermediate the bore of the holder and the steel shank.
摘要翻译: 在本发明的一个方面,降解组件具有装配在附接到驱动机构的块内的保持器。 保持器具有在与驱动机构相对的一端具有开口的纵向中心孔。 高抗冲击工具具有在钢柄和冲击尖端的轴向中间的碳化物垫片,钢柄具有第一端和第二端。 套筒径向位于夹持器的孔和钢柄之间。
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公开(公告)号:USD581952S1
公开(公告)日:2008-12-02
申请号:US29283824
申请日:2007-08-24
申请人: David R. Hall , Ronald Crockett , Scott Dahlgren , Jeff Jepson
设计人: David R. Hall , Ronald Crockett , Scott Dahlgren , Jeff Jepson
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公开(公告)号:US20080284234A1
公开(公告)日:2008-11-20
申请号:US11748254
申请日:2007-05-14
申请人: David R. Hall , Ronald Crockett , Jeff Jepson
发明人: David R. Hall , Ronald Crockett , Jeff Jepson
IPC分类号: E21C35/18
CPC分类号: E21C35/183 , E21C2035/1806
摘要: In one aspect of the invention, a pick adapted to degrade man-made or natural formations has a steel body comprising a shank adapted for attachment to a driving mechanism. The pick also has a leading edge opposite the shank which has an inside edge. A bore is disposed in the steel body proximate the inside edge. A cemented metal carbide core is press fit into the bore. A reentrant is formed at least partially in the bore.
摘要翻译: 在本发明的一个方面,适于降解人造或天然地层的镐具有包括适于附接到驱动机构的柄的钢体。 该接头还具有与柄部相对的前缘,其具有内侧边缘。 孔内部靠近内边缘设置在钢体内。 胶合金属碳化物芯被压配合到孔中。 至少部分地在孔中形成凹陷。
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公开(公告)号:US20080258536A1
公开(公告)日:2008-10-23
申请号:US12146665
申请日:2008-06-26
申请人: David R. Hall , Ronald Crockett , Jeff Jepson
发明人: David R. Hall , Ronald Crockett , Jeff Jepson
CPC分类号: E21C35/197 , A47C3/00 , B28D1/186 , E21B10/16 , E21B10/36 , E21C35/18 , E21C35/183 , E21C2035/1826 , Y10T29/49865 , Y10T403/217
摘要: A high impact resistant tool comprises a steel shank. The steel shank has a hollow portion and first and second ends. The shank is adapted for insertion into a holder and connection to a driving mechanism. A carbide cap is joined at a brazed joint to the first end of the shank.
摘要翻译: 高抗冲击工具包括钢柄。 钢柄具有中空部分和第一和第二端部。 柄部适于插入支架并连接到驱动机构。 碳化物盖在钎焊接头处连接到柄的第一端。
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公开(公告)号:US07413256B2
公开(公告)日:2008-08-19
申请号:US11463962
申请日:2006-08-11
申请人: David R. Hall , Ronald Crockett , Jeff Jepson
发明人: David R. Hall , Ronald Crockett , Jeff Jepson
IPC分类号: E21C35/18
CPC分类号: E21C35/183 , E21C35/197 , E21C2035/1806
摘要: In one aspect of the invention, a degradation assembly has an attack tool with a body and a shank, the body having a wear-resistant tip. The shank is disposed within a bore of a holder secured to a driving mechanism. A washer is positioned in-between the attack tool and the holder and fitted around the shank of the attack tool, wherein an outer edge of the washer has a hardness greater than 58 HRc.
摘要翻译: 在本发明的一个方面,降解组件具有具有主体和柄部的攻击工具,所述主体具有耐磨头部。 柄设置在固定到驱动机构的保持器的孔内。 垫圈定位在攻击工具和保持器之间并且围绕攻击工具的柄部安装,其中垫圈的外边缘具有大于58HRC的硬度。
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