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81.Visual tuning electronic drive circuitry for ultrasonic dental tools 失效
Title translation: 视觉调谐电子驱动电路用于超声牙科工具公开(公告)号:US3586936A
公开(公告)日:1971-06-22
申请号:US3586936D
申请日:1969-10-16
Applicant: C & B CORP
Inventor: MCLEROY ROBERT P
CPC classification number: B06B1/0223 , B06B2201/58 , B06B2201/76
Abstract: Solid state electronic circuitry for driving the magnetostrictive transducer of ultrasonic dental tools is described, wherein tuning to resonance is controlled by circuit adjustment to maximum brightness of a tuning indicator lamp. Variation of brightness of the lamp as a function of tuning accuracy is achieved by feeding a reference voltage proportional to the excitation current flowing through the ultrasonic transducer to the input of a differential amplifier stage to compare it with a preset reference voltage. The varying output voltage thus derived is amplified to provide an energization current for the indicator lamp which will be proportional to the transducer excitation current and thus an indication of tuning to resonance.
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82.Article of manufacture and apparatus for producing ultrasonic power 失效
Title translation: 制造超声波电源制造装置公开(公告)号:US3351832A
公开(公告)日:1967-11-07
申请号:US63562967
申请日:1967-02-01
Applicant: AEROJET GENERAL CO
Inventor: HOUGHTON RICHARD B , BELL STEVEN A
CPC classification number: B06B1/08 , B06B1/0207 , B06B2201/58
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公开(公告)号:US3151284A
公开(公告)日:1964-09-29
申请号:US9701161
申请日:1961-03-20
Applicant: CAVITRON ULTRASONICS INC
Inventor: CLAUS KLEESATTEL
CPC classification number: H03B5/40 , B06B1/0261 , B06B2201/58
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公开(公告)号:US3148289A
公开(公告)日:1964-09-08
申请号:US84200059
申请日:1959-09-24
Applicant: PHILIPS CORP
Inventor: JOSEPHUS PIJLS HERMANUS STEPHA , ERNST ENZ ULRICH
CPC classification number: H03H3/013 , B06B1/0261 , B06B2201/55 , B06B2201/58
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公开(公告)号:US3044016A
公开(公告)日:1962-07-10
申请号:US74379258
申请日:1958-06-23
Applicant: MOTOROLA INC
Inventor: NEIL FRIHART HENRY , KRAKORA JR JAMES J
IPC: B06B1/02
CPC classification number: B06B1/0261 , B06B2201/58 , B06B2201/70
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公开(公告)号:US2921288A
公开(公告)日:1960-01-12
申请号:US65569646
申请日:1946-03-20
Applicant: O'NEILL JOHN P , LEIGH JOHN S
Inventor: O'NEILL JOHN P , LEIGH JOHN S
CPC classification number: B06B1/0215 , B06B1/085 , B06B2201/40 , B06B2201/58 , B06B2201/74
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公开(公告)号:US2872578A
公开(公告)日:1959-02-03
申请号:US46452054
申请日:1954-10-25
Applicant: JACK KAPLAN , TURNER FRANK T
Inventor: JACK KAPLAN , TURNER FRANK T
IPC: B06B1/02
CPC classification number: B06B1/0253 , B06B2201/58
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公开(公告)号:ZA7305101B
公开(公告)日:1974-10-30
申请号:ZA7305101
申请日:1973-07-26
Applicant: MATSUSHITA ELECTRIC IND CO LTD
Inventor: FUJIEDA H , YAMAMOTO T
CPC classification number: F23D11/345 , B06B1/0253 , B06B2201/58 , B06B2201/77
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公开(公告)号:NO20074561A
公开(公告)日:2007-09-27
申请号:NO20074561
申请日:2007-09-10
Applicant: SULPHCO INC
Inventor: GUNNERMAN RUDOLF W , MAY JASON , RICHMAN CHARLES I
IPC: H04N5/228
CPC classification number: B06B1/0246 , B06B2201/58 , B06B2201/70
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