专利检索_ .旋转是间歇性的例如通过棘轮机构获得的专利检索_ .旋转是间歇性的例如通过棘轮机构获得的专利检索查询

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E21B6/08： ..冲击和旋转的单独驱动装置

序号	专利名	申请号	申请日	公开（公告）号	公开（公告）日	发明人
41	Rotation device for rock drills	US34868353	1953-04-14	US2700373A	1955-01-25	FEUCHT JACOB E

42	Tool rotator for reciprocating hammers	US18435750	1950-09-12	US2635854A	1953-04-21	RICHARDS ARCHER W; OSTERHUS ERVIN J

43	Power-driven jackhammer	US9072749	1949-04-30	US2597292A	1952-05-20	COATES OSCAR S

44	Rock drill	US66738446	1946-05-04	US2595128A	1952-04-29	CURTIS JOHN C; GARTIN ELMER G

45	Percussion tool	US16723650	1950-06-09	US2588360A	1952-03-11	COLE CHARLES T

46	Hand tool	US66486746	1946-04-25	US2478894A	1949-08-16	CARLSTEN SIGURD V

47	Rock drill rotation mechanism	US46775342	1942-12-03	US2349971A	1944-05-30	LEAR EARL B

48	Rock drill	US25487639	1939-02-06	US2251269A	1941-08-05	CURTIS JOHN C

49	Fluid operated tool	US11327536	1936-11-30	US2129566A	1938-09-06	CURTIS JOHN C

50	Rock drill mechanism	US15643637	1937-07-30	US2124627A	1938-07-26	MORRISON WILLIAM A

51	Rock drill	US7600136	1936-04-23	US2092530A	1937-09-07	CURTIS JOHN C

52	Rock drill	US6617536	1936-02-28	US2076355A	1937-04-06	SMITH SR WILLIAM A

53	Ratchet mechanism	US1634835	1935-04-15	US2062805A	1936-12-01	CAMPBELL ROY E

54	Rotation mechanism	US5936336	1936-01-16	US2043352A	1936-06-09	HULSHIZER GEORGE W

55	Spring for ratchet mechanisms	US61010232	1932-05-09	US2013765A	1935-09-10	RICHARDSON LED L

56	Drilling apparatus	US72858134	1934-06-01	US2001729A	1935-05-21	CHESTER HUFFMAN MERVIN

57	Rotation device for drilling mechanisms	US47158130	1930-07-29	US1988445A	1935-01-22	DOVELL DUDLEY K

58	Rotation control mechanism for drills	US46830830	1930-07-16	US1895860A	1933-01-31	NELL GUSTAVE M

59	Safety device for rock drills	US54836731	1931-07-02	US1889409A	1932-11-29	LEAR EARL B

60	Back head construction for rock drills	US46807130	1930-07-15	US1868670A	1932-07-26	NELL GUSTAVE M

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