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Class Information
Number: 175/52
Name: Boring or penetrating the earth > With magazine for successively moving unconnected, oriented tool or shaft sections to use position
Description: Process or apparatus combined with a holding of storage means or steps for carrying a plurality of separate disconnected tools or tool shaft sections, said holding or storage means or steps including separately removing and positioning a tool or a tool shaft section from said holding or storage position into a use position with the previously removed and positioned tool or tool shaft section.










Patents under this class:
1 2 3 4 5

Patent Number Title Of Patent Date Issued
4834195 Drill magazine May. 30, 1989
4832552 Method and apparatus for rotary power driven swivel drilling May. 23, 1989
4825962 Drilling system May. 2, 1989
4765401 Apparatus for handling well pipe Aug. 23, 1988
4748563 Have invented certain new and useful improvements in method and apparatus for controlling the lift travel of a mast or derrick May. 31, 1988
4744710 Drilling derrick with external pipe storage May. 17, 1988
4725179 Automated pipe racking apparatus Feb. 16, 1988
4709766 Well pipe handling machine Dec. 1, 1987
4708563 Arrangement for storing pipes Nov. 24, 1987
4684314 Pipe handling apparatus Aug. 4, 1987
4684306 Auxiliary workover rig Aug. 4, 1987
4632618 Feed storage for drill rods for a long-hole drilling apparatus Dec. 30, 1986
4613001 Weather protected offshore drilling rig Sep. 23, 1986
4610315 Pipe handling apparatus for oil drilling operations Sep. 9, 1986
4605077 Top drive drilling systems Aug. 12, 1986
4604724 Automated apparatus for handling elongated well elements such as pipes Aug. 5, 1986
4595066 Apparatus for handling drill pipes Jun. 17, 1986
4591007 Well tubing handling apparatus May. 27, 1986
4591006 Well servicing rig May. 27, 1986
4533055 Storage rack for drilling tubulars Aug. 6, 1985
4455116 Drill pipe handling and storage apparatus Jun. 19, 1984
4453884 Hook rotating mechanism Jun. 12, 1984
4449596 Drilling of wells with top drive unit May. 22, 1984
4449592 Automatic drill string section changer May. 22, 1984
4445579 Pipe carousel for well-drilling rig May. 1, 1984
4437524 Well drilling apparatus Mar. 20, 1984
4407629 Lifting apparatus for down-hole tubulars Oct. 4, 1983
4405022 Tubular handling system for oil drilling rigs Sep. 20, 1983
4403666 Self centering tongs and transfer arm for drilling apparatus Sep. 13, 1983
4345290 Electrical transient suppressor Aug. 17, 1982
4335792 Working board for drilling rig Jun. 22, 1982
4312413 Drilling apparatus Jan. 26, 1982
4296820 Drilling apparatus Oct. 27, 1981
4258796 Earth drilling apparatus Mar. 31, 1981
4187546 Computer-controlled oil drilling rig having drawworks motor and brake control arrangement Feb. 5, 1980
4165690 Drill units for drilling and charge laying operations and method of carrying out the operations Aug. 28, 1979
RE30071 Drill string element handling apparatus Aug. 14, 1979
4128135 Drill pipe handling mechanism Dec. 5, 1978
4114698 Method and apparatus for tunneling upwardly Sep. 19, 1978
RE29541 Hydraulic drilling rig and power swivel Feb. 21, 1978
4065845 Device for changing bore crowns Jan. 3, 1978
4053182 Mining method and apparatus Oct. 11, 1977
4049065 Drilling apparatus Sep. 20, 1977
4043407 Drilling sampling/testing equipment Aug. 23, 1977
RE29020 Drilling apparatus Nov. 2, 1976
3986569 Drill string element handling apparatus Oct. 19, 1976
3985189 Drill rod handling device Oct. 12, 1976
3976149 Rock drill equipment having a mechanized drill bit exchange Aug. 24, 1976
3966053 Drilling apparatus Jun. 29, 1976
3965994 Magazine for storing drill string elements Jun. 29, 1976

1 2 3 4 5










 
 
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