Measuring and testing – Volume or rate of flow – Using differential pressure
Patent
1996-09-24
1998-02-24
Dombroske, George M.
Measuring and testing
Volume or rate of flow
Using differential pressure
73706, G01F 138
Patent
active
057213828
ABSTRACT:
An apparatus for visually indicating fluid flow through a fluid system or apparatus such as a medical infusion device. The apparatus comprises a pair of thin, indicia bearing films disposed in an overlaying relationship. These films are shifted relative to each other by movement of mechanical actuators which are deflected solely by the pressure of the fluid within the fluid conduits of the system of the apparatus. The two films are stacked in closed proximity and are preferably constructed from a substantially transparent flexible material such as mylar. One surface of the inferior film is printed with a plurality of integrated symbols depicting various fluid flow conditions. The superior film functions as a mask over the inferior film and is printed with a pattern of diagonally extending, alternating clear and opaque stripes. The print ratio of the superior film permits viewing at any one time of only one of the symbols printed on the inferior film.
REFERENCES:
patent: 3675722 (1972-07-01), Balmes, Sr.
patent: 3703879 (1972-11-01), Huthsing, Jr.
patent: 3895631 (1975-07-01), Buckles et al.
patent: 3939069 (1976-02-01), Buckles et al.
patent: 4020784 (1977-05-01), Greene
patent: 4140117 (1979-02-01), Buckles et al.
patent: 4343188 (1982-08-01), Baker
patent: 4431425 (1984-02-01), Thompson et al.
patent: 4626243 (1986-12-01), Sinah et al.
patent: 5039279 (1991-08-01), Natwick et al.
patent: 5267980 (1993-12-01), Dirr, Jr. et al.
Arnold Steven
Garrison James M.
Kazemzadeh Farhad
Kriesel Marshall S.
Brunton James E.
Dombroske George M.
Noori Max H.
LandOfFree
Apparatus for indicating fluid pressure within a conduit does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Apparatus for indicating fluid pressure within a conduit, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Apparatus for indicating fluid pressure within a conduit will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1876271