公开(公告)号：US2931865A

公开(公告)日：1960-04-05

申请号：US83941459

申请日：1959-09-11

Applicant: ASTATIC CORP

Inventor： DVORSKY ALEXANDER L

IPC: H04R17/02

CPC classification number: H04R17/02

公开(公告)号：US2653191A

公开(公告)日：1953-09-22

申请号：US28616452

申请日：1952-05-05

Applicant: ASTATIC CORP

Inventor： MAURICE PALO ,  DVORSKY ALEXANDER L

IPC: H04R17/04 ,  H04R17/06

CPC classification number: H04R17/06 ,  H04R17/04

公开(公告)号：US3585317A

公开(公告)日：1971-06-15

申请号：US3585317D

申请日：1968-01-04

Applicant: ASTATIC CORP

Inventor： DVORSKY ALEXANDER L

IPC: H04R1/38 ,  H04R7/26

CPC classification number: H04R1/38 ,  H04R7/26

Abstract: Directional (cardioid) response is achieved by acoustical phase shift through porous plates and slots which are adjustable. Rubber vibration isolator means adjustably secures the transducer in the housing. A multipath acoustical system, combined with a high-compliance diaphragm, insures improved response and greater discrimination over a wide frequency range.

公开(公告)号：US2601126A

公开(公告)日：1952-06-17

申请号：US5830248

申请日：1948-11-04

Applicant: ASTATIC CORP

Inventor： MAURICE PALO ,  DVORSKY ALEXANDER L

IPC: G11B3/02 ,  G11B3/46

CPC classification number: G11B3/02 ,  G11B3/46

公开(公告)号：US3555206A

公开(公告)日：1971-01-12

申请号：US3555206D

申请日：1967-09-15

Applicant: ASTATIC CORP

Inventor： DVORSKY ALEXANDER L

IPC: H04R1/22 ,  H04R7/20 ,  H04R7/26 ,  H04R9/08 ,  H04R9/04

CPC classification number: H04R7/20 ,  H04R1/225 ,  H04R7/26

Abstract: A composite diaphragm structure combining a deeply drawn main diaphragm, an inturned compliance ring under the main diaphragm and an elastomer stiffener and damper applied to the front face of the main diaphragm.

公开(公告)号：US3278695A

公开(公告)日：1966-10-11

申请号：US26696863

申请日：1963-03-21

Applicant: ASTATIC CORP

Inventor： CRAIG JAMES C ,  DVORSKY ALEXANDER L

IPC: H04R1/06 ,  H04R1/10 ,  H04R17/00

CPC classification number: H04R1/1058 ,  H04R1/06 ,  H04R1/1008 ,  H04R17/00 ,  H04R17/02

公开(公告)号：US2702318A

公开(公告)日：1955-02-15

申请号：US20534951

申请日：1951-01-10

Applicant: ASTATIC CORP

Inventor： DVORSKY ALEXANDER L

IPC: H04R1/38

CPC classification number: H04R1/38