公开(公告)号：US2878713A

公开(公告)日：1959-03-24

申请号：US48043655

申请日：1955-01-07

Applicant: SERVO CORP OF AMERICA

Inventor： HENRY BLACKSTONE

IPC: G01C11/02 ,  G01S7/20 ,  G01S7/28 ,  G01S7/295 ,  G01S11/12 ,  G01S17/50 ,  G01S17/89 ,  G02B26/10 ,  H01Q3/14 ,  H04N3/09 ,  H04N5/33

CPC classification number: H01Q3/14 ,  G01C11/025 ,  G01S7/20 ,  G01S7/2806 ,  G01S7/295 ,  G01S11/12 ,  G01S17/50 ,  G01S17/89 ,  G02B26/10 ,  H04N3/09 ,  H04N5/33

公开(公告)号：US2860179A

公开(公告)日：1958-11-11

申请号：US39434653

申请日：1953-11-25

Applicant: SERVO CORP OF AMERICA

Inventor： HENRY BLACKSTONE

IPC: H04N7/12

CPC classification number: H04N7/12

公开(公告)号：US2761072A

公开(公告)日：1956-08-28

申请号：US23448351

申请日：1951-06-30

Applicant: SERVO CORP OF AMERICA

Inventor： WORMSER ERIC M

IPC: G01J5/08

CPC classification number: G01J5/08 ,  G01J5/0806 ,  G01J5/0834 ,  G01J5/0859 ,  Y10S246/01

公开(公告)号：US2739865A

公开(公告)日：1956-03-27

申请号：US15846550

申请日：1950-04-27

Applicant: SERVO CORP OF AMERICA

Inventor： WILLEY FRANK G

IPC: G01D15/06 ,  G01R13/14 ,  G06K1/02 ,  G06K15/22

CPC classification number: G06K1/02 ,  G01D15/06 ,  G01R13/14 ,  G06K15/22

公开(公告)号：US2629490A

公开(公告)日：1953-02-24

申请号：US17960950

申请日：1950-08-15

Applicant: SERVO CORP OF AMERICA

Inventor： BAILEY SAMUEL J

IPC: B07C5/28

CPC classification number: B07C5/28

公开(公告)号：AU624058B2

公开(公告)日：1992-05-28

申请号：AU6825290

申请日：1990-12-19

Applicant: SERVO CORP OF AMERICA

Inventor： BAMBARA JOSEPH E

IPC: G01N29/30 ,  G01N29/34 ,  B61K9/04 ,  G01N29/04

公开(公告)号：CA1290845C

公开(公告)日：1991-10-15

申请号：CA574184

申请日：1988-08-09

Applicant: SERVO CORP OF AMERICA

Inventor： BAMBARA JOSEPH E ,  FRAREY JOHN L ,  SMITH RICHARD L

IPC: B61K9/04 ,  G01N29/14 ,  G01M13/04 ,  G01H1/00

Abstract: This invention relates to apparatus for the detection of acoustic impact frequencies, characteristic of bearing assembly failure during operation, which modulate an acoustic carrier frequency band. This apparatus allows for on-site or field application with high-level of ambient noise such as are present in railroad yards. This apparatus allows for early detection of such failures, so that a repair may be made before damaging heat build-up or catastrophic bearing failure occurs. Additionally, with sufficient early warning in railroad applications, a train may continue running to a railyard for convenient shop repair rather than expensive field repair.

公开(公告)号：SE9003239L

公开(公告)日：1991-08-01

申请号：SE9003239

申请日：1990-10-11

Applicant: SERVO CORP OF AMERICA

Inventor： BAMBARA J E

IPC: G01N29/30 ,  G01N29/34

公开(公告)号：SE9001955L

公开(公告)日：1991-01-07

申请号：SE9001955

申请日：1990-05-31

Applicant: SERVO CORP OF AMERICA

Inventor： BAMBARA J E

IPC: B61K9/04 ,  G01H1/00 ,  G01H3/08 ,  G01N29/14 ,  G01N29/38

公开(公告)号：GB8815142D0

公开(公告)日：1988-08-03

申请号：GB8815142

申请日：1988-06-24

Applicant: SERVO CORP OF AMERICA

IPC: B61K9/04 ,  G01N29/14

Abstract: This invention relates to apparatus for the detection of accustic impact frequencies, characteristic of bearing assembly failure during operation, which modulate an acoustic carrier frequency band. This apparatus allows for on-site or field application with high-level of ambient noise such as are present in railroad yards. This apparatus allows for early detection of such failures, so that a repair may be made before damaging heat build-up or catastrophic bearing failure occurs. Additionally, with sufficient early warning in railroad applications, a train may continue running to a railyard for convenient shop repair rather than expensive field repair.