Measuring and testing – Liquid level or depth gauge – Float
Patent
1992-06-30
1994-04-05
Gutierrez, Diego F. F.
Measuring and testing
Liquid level or depth gauge
Float
73313, 73319, 73DIG5, 73311, 732225, 340624, 3404503, 33722, 184108, 123196S, G01F 2372, G01F 2376
Patent
active
052994562
ABSTRACT:
A dipstick for measuring oil levels provides an electronic indication when oil in an internal combustion engine sump is low or high. The electronic dipstick does not have to be removed as is normal for most dipsticks which determine level from observing a wet line on the stick. The dipstick has an elongated member for insertion into an aperture of a sump, the member has a high mark and a low mark thereon representing oil level in the sump. A float is mounted for movement within a cage integral with the elongated member, the float having a magnet to activate a switch. A first switch is associated with the high level and a second switch is associated with the low level. An indicating arrangement indicates when the magnet in the float activates either the first switch and/or the second switch.
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