Differential pressure gauge transmitter

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 4890497
SERIAL NO

07236231

Stats

ATTORNEY / AGENT: (SPONSORED)

Importance

Loading Importance Indicators... loading....

Abstract

See full text

For use in a process control current loop including an external electrical power source that is series connected to the transmitter which is in turn connected to a fixed resistance receiver (that may be in the form of a system controller, a computer, a digital readout device, or the like) that in turn is series connected to the electrical power source, with the transmitter being arranged to provide an analog display of differential pressure or pressure sensed by the instrument and also provide for transmission to the receiver of a signal in the 4-20 milliamp range that is proportional to any changes in the differential pressure or pressure sensed by the instrument.

Loading the Abstract Image... loading....

First Claim

See full text

Family

Loading Family data... loading....

Patent Owner(s)

Patent OwnerAddress
DWYER INSTRUMENTS INC A CORP OF INDIANANot Provided

International Classification(s)

  • [Classification Symbol]
  • [Patents Count]

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Cahill, John M Michigan City, IN 7 72

Cited Art Landscape

Load Citation

Patent Citation Ranking

Forward Cite Landscape

Load Citation