公开(公告)号：US3691843A

公开(公告)日：1972-09-19

申请号：US3691843D

申请日：1970-09-11

Applicant: DRESSER IND

Inventor： GORGENS JOSEPH E ,  HESKE WILLIAM A ,  GOFF RANDALL

IPC: G01R17/08 ,  G01L7/04

CPC classification number: G01R17/08

Abstract: Apparatus responsive to sensed magnitude of a variable condition input to provide an output drive for operative connection to a recorder, counter, or the like. The apparatus includes a control operative in response to condition changes by discreet bidirectional movement from a force balance null position at which sensing means for emitting correlated bidirectional signals to the output drive are at a nonemitting signal level.

公开(公告)号：US3424008A

公开(公告)日：1969-01-28

申请号：US3424008D

申请日：1966-09-26

Applicant: DRESSER IND

Inventor： HESKE WILLIAM A

IPC: F15B5/00 ,  G01L7/04

CPC classification number: F15B5/003 ,  G01L7/04

公开(公告)号：US3500391A

公开(公告)日：1970-03-10

申请号：US3500391D

申请日：1968-05-01

Applicant: DRESSER IND

Inventor： HESKE WILLIAM A

IPC: G06M1/22 ,  G06M1/24 ,  G08B5/02

CPC classification number: G06M1/22 ,  G06M1/248