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公开(公告)号：DE1954272A1
公开(公告)日：1970-05-27
申请号：DE1954272
申请日：1969-10-28
Applicant: AMLAB AB
Inventor： FAHLSTROEM RUNE
Abstract: Tool reciprocates on a surface in the vibration-plane of the tip and has hard diamond powder as abrader. The abrasive particle size is 20-60 microns and the tool operates at 15-30 kHz and amplitude of 0.05-0.12 mm. The area treated is supplied with water for cooling and flushing surplus filling amalgam clear.
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公开(公告)号：DE2005847B2
公开(公告)日：1979-02-01
申请号：DE2005847
申请日：1970-02-09
Applicant: AMLAB AB, NYNAESHAMN (SCHWEDEN)
Abstract: The power output from the alternating current or impulse generator(S) connected to the tool can be altered by stationary control unti(O) actuated by a short circuit winding (R) provided in the area of the magnetic field of the induction coil (I1) used to drive the tool. This short-circuit winding (R) is attached for manual control to the tool and is galvanically sepd. from the remaining circuit. A control member (J2, J3) is connected to the induction coil (J1) and the control unit (O) so that the control unit O can be actuated and the generator altered in its capacity in dependence on the alterations in the electrical conditions which occur during a manual short circuiting of the short circuit winding (R). The winding (R) is pref. an open metal ring which can be detachably fitted on the tool.
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公开(公告)号：SE7402974L
公开(公告)日：1975-09-08
申请号：SE7402974
申请日：1974-01-26
Applicant: AMLAB AB
Inventor： BOSTROM H , WESTBERG B
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公开(公告)号：GB1276766A
公开(公告)日：1972-06-07
申请号：GB1196470
申请日：1970-03-12
Applicant: AMLAB AB
IPC: B06B1/02
Abstract: 1276766 Ultrasonic transducers AMLAB AB 12 March 1970 [12 March 1969] 11964/70 Heading H3T An ultrasonic generator comprises an amplifier T, a reactive impedance Cy connected in parallel across the exciting impedance Lp of an electromechanical element E to form a parallel tuned circuit wherein the maximum current occurring at the resonant frequency of the equivalent series resonant circuit of E is supplied to the primary winding Le of a current transformer, the secondary Lb being connected to Cb to form a series tuned resonant circuit through which the current is in a phase-aiding relationship returned to the control electrode b of the amplifier for automatically adjusting the electrical oscillation frequency to compensate for variations in the mechanical resonance frequency. The transformation ratio is chosen so that T is brought into a pulsed oscillation and E is driven into a maximum change of length during one half period while being allowed freely to regain original length during next half period.
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公开(公告)号：SE343140B
公开(公告)日：1972-02-28
申请号：SE269971
申请日：1971-03-03
Applicant: AMLAB AB
Inventor： WESTBERG B , LINDSTEN R
IPC: F42B19/01
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Patent Agency Ranking
公开(公告)号：SE339346B
公开(公告)日：1971-10-04
申请号：SE340569
申请日：1969-03-12
Applicant: AMLAB AB
Inventor： DUREN L , ANDERSSON A
Abstract: An ultrasonic generator including an amplifier coupled in oscillator configuration for initiating via an exciting impedance ultrasonic vibrations in an electro-acoustic element such as that associated with a dental instrument. Connected in parallel with the exciting impedance in an additional impedance to form a tuned parallel resonance circuit. Maximum current is supplied to the exciting impedance through the amplifier and the primary winding of a current transformer also having a secondary winding connected in series with a capacitor to form a tuned series resonance circuit additionally emphasizing the maximum current. The transformer forms an inductive coupling in phase-aiding relationship between the output circuit of the amplifier and the control electrode thereof for continuously maintaining optimal effect at the prevailing resonance frequency with an automatic adaptation of the oscillation frequency to variations from the nominal mechanical resonance frequency of the electro-acoustic element.
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公开(公告)号：SE320431B
公开(公告)日：1970-02-09
申请号：SE175969
申请日：1969-02-10
Applicant: AMLAB AB
Inventor： ANDERSSON A , DUREN L
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公开(公告)号：DE2005847C3
公开(公告)日：1979-09-27
申请号：DE2005847
申请日：1970-02-09
Applicant: AMLAB AB, NYNAESHAMN (SCHWEDEN)
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公开(公告)号：SE7603777A
公开(公告)日：1977-10-01
申请号：SE7603777
申请日：1976-03-30
Applicant: AMLAB AB
Inventor： WESTBERG K-A , DUREN L A
IPC: B29D3/02
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公开(公告)号：SE390376B
公开(公告)日：1976-12-20
申请号：SE7402974
申请日：1974-01-26
Applicant: AMLAB AB
Inventor： BOSTROM H , WESTBERG B
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