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US2506494 * Jan 9, 1948 May 2, 1950 Whitehead Brothers Rubber Comp Coupling assembly for rotary drill hoseUS2506494 * 194819 195052
2. A method of manufacture for reinforcing the inner tube of a reinforcedThe rotary drilling hose is subject to further stress in that it hangs down
2003419-This invention relates to self-supporting, selfguiding rotary oil well drilling apparatus and particularly to that type embodying two rotary
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20171121-Rotary drilling hose is used to convey drilling liquids from the top of mud standpipe to the rotary swivel. Operating pressure up to 4000psi.
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20091119-US Patent References: 1615596 Rotary well drill 1927-01-25 1587194 Self-propelling hose nozzle 1926-06-01 Home Search Services Communiti
Rotary drilling equipment -- Rotary hosesGeneral information Status : Withdrawn Publication date : 1978-04 Edition : 1 Technical Committee : ISO/TC
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1,Applicability: Commonly used in rotary drilling service as flexible connectors3,Hose Reinforcement: 2~ 6 layers spiraled by single high-strength steel
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This article presents a 30-year summary of the development of the rotary drilling hose in China. The key features of the various products are discussed
COLQUITT 2,657,015 MEANS FOR CIRCULATING MUD IN ROTARY WELL DRILLING masas to completely eliminate the necessity for a flexible mud hose. 7 A
2007119-rotary drill hose, which is employed for handling the drilling fluid or hose showing the damage resulting from the hose being flattened;
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20171126-DRILLING RUBBER HOSE / Rotary hose Construction: it is composed of an 2sp-64-15 64±1.2 75±1.0 79±1.5 15 2160 30 4320 45 6480 1000
SCHLIECKMANN SCAVENGING HEAD ASSEMBLY FOR ROTARY DRILLING APPARATUS Filed June 2, the suspended flexible hose or the hinge coupling of the special pipe
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