Measuring and testing – Liquid level or depth gauge – Float
Patent
1990-03-08
1992-01-28
Cuchlinski, Jr., William A.
Measuring and testing
Liquid level or depth gauge
Float
277 30, 340625, 384 2, G01F 2332
Patent
active
050834614
ABSTRACT:
A high pressure, fluid level sensor and seal includes a body supporting a removable end cap and housing a trunnion bearing comprising a pivot disk that is pivotable about a pivot axis formed by a pair of pivot pins that are secured to the base of the end cap. The pivot disk is connected to a control arm that freely passes through the end cap. The pivot disk is also connected to a displacer arm that engages a float or displacer in communication with fluid in a high pressure tank. A compression spring acting between the control arm and the end cap biases the pivot disk against the pivot pins. The control arm engages an operating mechanism in a controller that includes a relay. The body is secured in the wall of a high pressure tank. A high pressure seal is formed by a spacer that forms a slip fit with an annular recess on the pivot disk and which engages the end cap and O-rings. The O-rings couple the spacer to the pivot disk and couple the spacer to the end cap. Small pivotal movement of the pivot disk about the pivot pins does not disrupt the high pressure seal. The entire assembly is readily removable from the tank for servicing without requiring removal of the body.
REFERENCES:
patent: 1992212 (1935-02-01), Horne
patent: 2137880 (1938-11-01), Loesser
patent: 2244131 (1941-06-01), Van Norstrand
patent: 2646067 (1953-07-01), Smith
patent: 2826919 (1958-03-01), Klingler
patent: 3064095 (1962-11-01), Kmiecik et al.
patent: 3890478 (1975-06-01), Riddel
patent: 4181021 (1980-01-01), Harris et al.
patent: 4700738 (1987-10-01), Frese et al.
patent: 4838303 (1989-06-01), Goans
Bulletin by Kimray, Inc., PFS Float Operated Pilot, Oklahoma City, Oklahoma--Dated 6/86.
Camasto Nicholas A.
Cole Arnold H.
Cuchlinski Jr. William A.
Fisher Controls International Inc.
Kubly Dale A.
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