William D Newbold

39397084, Feb 24, 1976

Sep 12, 1974

5/505758

Homer L. Greer - Bryn Athyn PA
William F. Newbold - Philadelphia PA

Honeywell, Inc. - Minneapolis MN

G01F 138
G01L 708

73205R

A closed system couples the inlet and outlet pressures generated by a centrifugal pump to a pair of flexible diaphragms which seal the flow tube in a pressure rebalance system for measuring fluid flow. The system is filled with a conducting fluid which forms certain resistance paths whose resistance varies with diaphragm position. This resistance change is used to generate signals which control the pump motor to the end that the diaphragms maintain a predetermined position and the pump head is equal to the differential pressure.

41633954, Aug 7, 1979

Sep 29, 1977

5/837714

Lewis A. Medlar - Oreland PA
William F. Newbold - Philadelphia PA

Honeywell Inc. - Minneapolis MN

G01L 708
G01L 1904

73708

A differential pressure to electrical signal transmitter has a pair of flat barrier diaphragms and a central control diaphragm located between the barrier diaphragms. First chambers between one of the barrier diaphragms and the control diaphragm, and a first length of capillary tubing connected between the first chambers and one chamber of a remotely located sensor capsule, are filled with a first incompressible fill liquid. Second chambers between the other barrier diaphragm and the control diaphragm, and a second length of capillary tubing connected between the second chambers and another chamber of the sensor capsule, are filled with a second incompressible fill liquid. The fill liquids are made to pump up their respective flat barrier diaphragms to cause the latter to have a dome shape and hence to be free from "oil canning. " A chamber on the outside of one barrier diaphragm is pressurized with a first fluid, and a chamber on the outside of the other barrier diaphragm is pressurized with a second fluid. The pressures of the two fill liquids act on the opposite sides of a minute displacement sensing element, located between the two sensor chambers, to displace the element and cause it to produce an electrical output signal which is dependent upon the difference between the fill liquid pressures, and hence upon the difference between the pressures of the first and second fluids.

39903109, Nov 9, 1976

Jul 28, 1975

5/599726

Homer L. Greer - Bryn Athyn PA
William F. Newbold - Philadelphia PA

Honeywell Inc. - Minneapolis MN

G01L 902

73398AR

A closed system couples the inlet and outlet pressures generated by a centrifugal pump to a pair of flexible diaphragms which seal the flow tube in a pressure rebalance system for measuring fluid flow. The system is filled with a conducting fluid which forms certain resistance paths whose resistance varies with diaphragm position. This resistance change is used to generate signals which control the pump motor to the end that the diaphragms maintain a predetermined position and the pump head is equal to the differential pressure.

42122090, Jul 15, 1980

Sep 7, 1978

5/940333

William F. Newbold - Philadelphia PA
Gurnam Singh - Willow Grove PA

Honeywell Inc. - Minneapolis MN

G01L 906

73721

In a differential pressure to electric current transducer, a short sapphire slab carries a strain sensitive resistive pattern. The sapphire slab is an element of a much larger beam as the beam moves to change the stress of the other surfaces of the sapphire slab and varies the resistance of the silicon resistive pattern to produce an electric current signal indicative of the differential pressure.

42442265, Jan 13, 1981

Oct 4, 1979

6/081692

Norman F. Green - Warrington PA
Yoel Keiles - Havertown PA
William F. Newbold - Philadelphia PA
John L. Searle - Camden NJ
Douglas W. Wilda - West Chester PA

Honeywell Inc. - Minneapolis MN

G01L 1100

73703

A distance measuring apparatus and a differential pressure transmitter utilizing the same having an ultrasonic element reflector mounted between a pair of ultrasonic transducers. The alternate operation of the ultrasonic transducers produces a pair of transducer energizing signals which are related to the relative separation of the reflector element from the transducers. In one embodiment, the reflector element is mounted within a closed pressure vessel divided internally by an ultrasonic reflector diaphragm with a pair of fluid inlet lines admitting respective pressurized fluids to corresponding sides of the reflector diaphragm. The ultrasonic transducer elements are mounted on the outside of the pressure vessel on an acoustical signal transmitting interface and are arranged to alternately supply an ultrasonic signal through the pressure vessel wall to the respective side of the diaphragm reflector while an analysis of the frequency of operation of each transducer is used to determine the differential pressure applied to the diaphragm.

42812992, Jul 28, 1981

Nov 23, 1979

6/096895

William F. Newbold - Philadelphia PA

Honeywell Inc. - Minneapolis MN

H03H 900
H03H 913
H04R 1700
H01L 4104

333187

A signal isolator has an acoustic transmitting medium with a first pair of acoustic transducers thereon for transmitting an input signal through the medium at a first frequency. A first transmitting and receiving circuit is used in combination with the first pair of transducers. A second pair of transducers is located on the acoustic medium to transmit a power supply signal through the medium at a second frequency. Power supply means associated with the power supply signals are used to energize the transmitting and receiving means on opposite sides of the medium.