Measuring and testing – Simulating operating condition – Marine
Patent
1985-11-04
1987-01-13
Levy, Stewart J.
Measuring and testing
Simulating operating condition
Marine
G01M 1900
Patent
active
046354735
ABSTRACT:
An oil monitor assembly (10) comprising a support (12) for removable attachment to an oil reservoir, a first electrode (14) extending from the support (12) for immersion in an oil in the reservoir and a second electrode (18) extending from the support (12) in spaced relationship to the interior of the first electrode (14). An electrical insulation (22) spaces the second electrode (18) within the first electrode (14) at the distal ends and presents a surface (24) in a plane facing the support (12). Perforations (16) in the first electrode are spaced circumferentially thereabout and axially therealong with some of the perforations (16) overlapping the plane of the surface (24) of the insulation (22) and extending toward the support (12) to prevent retention of oil within the first electrode (14) on the surface (24). A temperature sensor (26) is disposed within the second electrode (18). A heat-conducting potting material (28) fills the initiator electrode ( 18) and encapsulates the temperature sensor (26) and has a radial thickness of at least one tenth the radial spacing (20) of the second electrode (18) within the first electrode (14) to produce a sufficient resistivity for preventing current flow from the oil to the temperature sensor (26).
REFERENCES:
patent: 2122578 (1938-07-01), McMaster et al.
patent: 3477290 (1969-11-01), Lerner
patent: 3499130 (1970-03-01), Norred
patent: 3735638 (1973-05-01), Miller
patent: 4027534 (1977-06-01), Zimmermann
patent: 4296472 (1981-10-01), Sarkis
patent: 4467134 (1984-08-01), Pustell
patent: 4570483 (1986-02-01), Sobue
Levy Stewart J.
Milton Jr. Harold W.
Raevis Robert R.
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