Measuring and testing – Liquid level or depth gauge – With illumination
Patent
1996-08-15
1998-12-29
Dombroske, George M.
Measuring and testing
Liquid level or depth gauge
With illumination
222 64, 250900, 347 7, G01F 23292, B41F 3102
Patent
active
058529462
ABSTRACT:
The present invention is a fluid level detector for providing a signal indicative of fluid level in a fluid container. The fluid level detector includes a first light conduit portion for providing light to fluid within the fluid container and a second light conduit portion for receiving light provided by the first light conduit portion. A light path extends from the first light conduit portion into the second light conduit portion. The light path has a light path length that varies with fluid level within the fluid container. The light path length variation produces light intensity variation at the second conduit portion which is indicative of fluid level in the fluid container.
REFERENCES:
patent: 2190027 (1940-02-01), Jordan
patent: 3448616 (1969-06-01), Wostl et al.
patent: 4038650 (1977-07-01), Evans et al.
patent: 4342042 (1982-07-01), Cruz-Uribe et al.
patent: 4443699 (1984-04-01), Keller
patent: 4544840 (1985-10-01), Keller
patent: 4732035 (1988-03-01), Lagergren et al.
patent: 4783599 (1988-11-01), Borden
patent: 4938590 (1990-07-01), Ishida
patent: 4973993 (1990-11-01), Allen
patent: 5054319 (1991-10-01), Fling
patent: 5164605 (1992-11-01), Kidwell
patent: 5406315 (1995-04-01), Allen et al.
Dombroske George M.
Hewlett--Packard Company
Patel Harshad
Sullivan Kevin B.
LandOfFree
Method and apparatus for detecting fluid level does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Method and apparatus for detecting fluid level, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method and apparatus for detecting fluid level will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1416411