公开(公告)号：US2969506A

公开(公告)日：1961-01-24

申请号：US73710858

申请日：1958-05-22

Applicant: TESLA NP

Inventor： JIRI VACKAR

IPC: H03F1/04

CPC classification number: H03F1/04

公开(公告)号：US2929929A

公开(公告)日：1960-03-22

申请号：US66477657

申请日：1957-06-10

Applicant: TESLA NP

Inventor： VENCESLAV KROUPA

IPC: H03K23/82

CPC classification number: H03K23/82

公开(公告)号：US2872568A

公开(公告)日：1959-02-03

申请号：US42469754

申请日：1954-04-21

Applicant: TESLA NP

Inventor： JOSEF PROVAZ

IPC: H04B7/08

CPC classification number: H04B7/0805

公开(公告)号：US2843709A

公开(公告)日：1958-07-15

申请号：US63096656

申请日：1956-12-27

Applicant: TESLA NP

Inventor： ARNOST KREISINGER

IPC: H01H1/06 ,  H01H1/44 ,  H01H19/58

CPC classification number: H01H19/58 ,  H01H1/06 ,  H01H1/44

公开(公告)号：US3624312A

公开(公告)日：1971-11-30

申请号：US3624312D

申请日：1969-08-04

Applicant: TESLA NP

Inventor： KOUKAL VLASTIMIL ,  KRAKORA OTOKAR

IPC: H04R19/00 ,  H04R19/04 ,  H04R23/00

CPC classification number: H04R19/005

Abstract: The electret member of an electret microphone is a substantially cylindrical body of barium titanate composition having a first flat end face opposite the microphone diaphragm and a second end face covered with a fixedly attached electrode which extends into a blind axial bore centered in the second end face. The electret member is attached to a supporting plate by a bolt soldered to the electrode in the bore and fastened to the support plate by a nut. The bolt provides the conductive lead for the electret.

公开(公告)号：US3610593A

公开(公告)日：1971-10-05

申请号：US3610593D

申请日：1969-09-29

Applicant: TESLA NP

Inventor： VARGA JOSEF ,  KOSAR JIRI ,  BRAND MILAN

IPC: F27B7/02 ,  F27B7/32 ,  F27B9/38 ,  F27D3/04 ,  F27B9/14

CPC classification number: F27B9/38 ,  F27B7/02 ,  F27B7/3205 ,  F27D3/04

Abstract: An oven for curing ceramic objects having a kiln, a support mounted therein, a movable rod mounted for axial movement in alignment with the support, means for delivering successive workpieces between the rod and the support and means for continuously reciprocating the rod in the axial direction to move the workpieces through the oven.

公开(公告)号：US3603495A

公开(公告)日：1971-09-07

申请号：US3603495D

申请日：1969-01-09

Applicant: TESLA NP

Inventor： STEJSKAL BRETISLAV ,  STEPAN VLADIMIR ,  VLACH PETR

IPC: G03B17/30 ,  G11B15/20

CPC classification number: G03B17/305

Abstract: The invention relates to a film-feeding device for advancing a perforated or unperforated film strip of any width by any number of frames in either direction. The feeding of the film strip is effected by means of friction drive powered by two reversing motors. The advancement and braking of the film strip is carried out by variously supplying power to the two reversing motors. The displacement as well as the required positioning of the film strip are determined by sensing synchronizing indicia on the film strip by photoelectric sensors. The two reversing motors are switched from a rest condition to working and braking conditions by a special motor control device which is actuated either by starting signals from a primary source effecting the forward or reverse movement of the film strip or by stopping signals set up by the photoelectric sensors sensing the synchronizing marks.

公开(公告)号：US3546587A

公开(公告)日：1970-12-08

申请号：US3546587D

申请日：1968-04-25

Applicant: TESLA NP

Inventor： TURECEK JAN

IPC: G01R19/155 ,  G01R19/16

CPC classification number: G01R19/155

公开(公告)号：US3504213A

公开(公告)日：1970-03-31

申请号：US3504213D

申请日：1967-01-16

Applicant: TESLA NP

Inventor： HIX PETR ,  SCHNEIDER PETR

IPC: H01J1/48 ,  H01J43/04

CPC classification number: H01J1/48

公开(公告)号：US3487201A

公开(公告)日：1969-12-30

申请号：US3487201D

申请日：1968-04-12

Applicant: TESLA NP

Inventor： BERANEK MILAN

IPC: G05D23/22 ,  H05B1/02 ,  H05B3/02

CPC classification number: G05D23/22 ,  G05D23/1927