Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
148 words
A fluid pressure transmitter comprising a first diaphragm means responsive to a first input pressure, first incompressible fluid means in contact with said first diaphragm means, a differential pressure responsive means, a first fluid conduit means communicating said first fluid means to one side of said differential pressure responsive means, a second diaphragm means responsive to a second input pressure, a second incompressible fluid means in contact with said second diaphragm means, a second fluid conduit means communicating said second fluid means to the other side of said differential pressure responsive means, a first bellows means having an outside surface exposed to said first fluid means and an internal surface exposed to said second fluid means and a second bellows means located within said first bellows means and having an internal surface exposed to said first fluid means and an external surface exposed to said second fluid means.
Claim 2
Dependent Claim
148 words
A fluid pressure transmitter comprising a first diaphragm means responsive to a first input pressure, first incompressible fluid means in contact with said first diaphragm means, a differential pressure responsive means, a first fluid conduit means communicating said first fluid means to one side of said differential pressure responsive means, a second diaphragm means responsive to a second input pressure, a second incompressible fluid means in contact with said second diaphragm means, a second fluid conduit means communicating said second fluid means to the other side of said differential pressure responsive means, a first bellows means having an outside surface exposed to said first fluid means and an internal surface exposed to said second fluid means and a second bellows means located within said first bellows means and having an internal surface exposed to said first fluid means and an external surface exposed to said second fluid means.
Claim 3
Dependent Claim
37 words
A fluid pressure transmitter as set forth in claim 1 and further including a housing encompassing said first and second diaphragms, said first and second conduits, said first and second bellows and said differential pressure responsive means.
Claim 4
Dependent Claim
61 words
A fluid pressure transmitter as set forth in claim 1 and further including a housing means encompassing said first and second diaphragms, said first and second conduits means, said first and second bellows and further including first and second conduits external to said housing connecting respective ones of said first and second fluids to corresponding sides of said pressure responsive means.
Claim 5
Dependent Claim
35 words
A fluid pressure transmitter as set forth in claim 1 and further including a bellows preload means located with said first bellows to bias said first bellows to respond to a predetermined fluid pressure level.
Claim 6
Dependent Claim
36 words
A fluid pressure transmitter as set forth in claim 4 and further including a second bellows preload means located with said second bellows to bias said second bellows to respond to a predetermined fluid pressure level.
Claim 7
Dependent Claim
78 words
A fluid pressure transmitter as set forth in claim 1 wherein said first diaphragm means includes a first diaphragm and a first mating backup surface normally spaced from said first diaphragm, said first conduit means having a fluid port in said first backup surface, and said second diaphragm means includes a second diaphragm and a second mating backup surface normally spaced from said second diaphragm, said second conduit means having a fluid port in said second backup surface.
Claim 8
Dependent Claim
34 words
A fluid pressure transmitter as set forth in claim 6 and further including a bellows preload means located with said second bellows to bias said first bellows to respond a predetermined fluid pressure level.
Claim 9
Dependent Claim
36 words
A fluid pressure transmitter as set forth in claim 7 and further including a second bellows preload means located with said second bellows to bias said second bellows to respond to a predetermined fluid pressure level.