专利检索_ 带有振动挖掘或穿孔工作部件的犁带或不带驱动的专利检索_ 带有振动挖掘或穿孔工作部件的犁带或不带驱动的专利检索查询

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	Nonlinear resonant vibratory work system	US3633683D	1970-01-26	US3633683A	1972-01-11	SHATTO HOWARD L JR
A resonant vibratory system utilizes nonlinear elastic transmission means to operatively connect an oscillator to a work member to provide a nonsinusoidal vibratory system having a highvelocity work stroke and a low-velocity return stroke for greatly reducing draft or propulsive load on a work member. The oscillator is coupled to the transmission means so as to be isolated from high-velocity impulses delivered to the work member.
42	Vibrating plow with balanced forces	US3627056D	1968-12-23	US3627056A	1971-12-14	ROGERS THELMER A
This plow implement is made with a main frame and two plowcarrying subframes which are mounted for lateral swinging movement below the main frame. An eccentric arrangement between the two subframes laterally vibrates the subframes equally and opposite. Therefore, the main frame is isolated from vibration and is adapted to be attached to tractors or to have other machinery placed on it.
43	Vyba mount	US3461971D	1966-07-05	US3461971A	1969-08-19	SPRENKEL ROGER

44	Vibratory plow	US44515665	1965-04-02	US3396804A	1968-08-13	ROGERS THELMER A

45	Plate type heat exchangers	US58215566	1966-09-26	US3380517A	1968-04-30	BUTT ALAN G

46	Reciprocatory hoe	US72098247	1947-01-09	US2550522A	1951-04-24	DOMINIC BOLONGARO JAMES

47	Motor-driven spade	US72998047	1947-02-21	US2544747A	1951-03-13	DOMINIC BOLONGARO JAMES

48	Revolving scraper	US33682340	1940-05-23	US2259536A	1941-10-21	VAUGHN JESSE A

49	Plow	US6693536	1936-03-03	US2087639A	1937-07-20	GEDEON DEMEULENAERE

50	Automatic cultivator	US1303935	1935-03-26	US2028774A	1936-01-28	GEORGE HANTJOPOULOS

51	Earth working implement	US549035	1935-02-07	US2003871A	1935-06-04	JOSEPH SVATOS

52	Agricultural digging machine	US68086033	1933-07-17	US1988756A	1935-01-22	WILLIAM SMITH ROBERT

53	Spading device	US20935127	1927-07-29	US1818148A	1931-08-11	AKE MATSON OSCAR

54	Power-lift implement	US62314823	1923-03-06	US1584644A	1926-05-11	HUGO PETZOLDT

55	Tractor cultivator	US66364723	1923-09-19	US1577567A	1926-03-23	DAVID CHARLES R

56	Power hoe	US75386424	1924-12-04	US1561457A	1925-11-17	GUSS BRANNAN

57	Ground-tilling machine	US37675420	1920-04-26	US1479188A	1924-01-01	LARSON FRED E

58	Tractor	US37418520	1920-04-15	US1422558A	1922-07-11	GARDINER LOU M

59	Soil tiller	US46825521	1921-05-10	US1414308A	1922-04-25	HERMAN SCHULZE

60	Shovel or spade plow	US20681117	1917-12-12	US1328913A	1920-01-27	ISAAC COHEN

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