Electricity: measuring and testing – Magnetic – Fluid material examination
Patent
1994-10-28
1996-04-09
Williams, Hezron E.
Electricity: measuring and testing
Magnetic
Fluid material examination
73 5307, 73 64560, 73 6171, G01N 3300
Patent
active
055065015
ABSTRACT:
A method and apparatus is provided to prepare samples of viscous industrial fluids such as machine lubrication oil for analysis for the presence of magnetically responsive particles and other suspended solids. A test sample of the fluid is held in non-magnetic vessel. This sample holding vessel is positioned in the cooperative pocket of a portable, handheld vibrator and stimulated by 120 to 150 Hz, vibration for a designated period of time, usually 30 to 60 seconds. A strong permanent magnet below the vibrating vessel pocket is oriented to emit a magnetic field on or within the sample simultaneously with the vibrations to induce rapid settlement of any magnetic particles toward the vessel bottom. Such vibration also assists and accelerates pure gravity settlement of non-magnetic particles. Entrained gas bubbles tend to rise more rapidly to the sample surface due to the vibrational stimulation. After a brief vibrational interval within the magnetic flux fields and while the sample vessel remains in the flux field, oil is poured from the vessel across a suitable planar sheet filter to segregate non-magnetic particles originally suspended in the sample. Still within the flux field, the substantially empty vessel is rinsed with a solvent to immobilize residual non-magnetic particles. This rinse mixture is also poured across the sheet filter. Magnetically responsive particles held to the vessel bottom by the magnetic field are mobilized in a solvent upon removal of the vessel from the magnetic field. This mixture of solvent and magnetically responsive particles is poured across a second filter to isolate the magnetic particles independently of the non-magnetic particles for separate analysis.
REFERENCES:
patent: 1940772 (1933-12-01), Schoenberg
patent: 2599583 (1952-06-01), Robinson et al.
patent: 2889736 (1959-06-01), Borg
patent: 3049964 (1962-08-01), Miller et al.
patent: 3371574 (1968-03-01), Dwyer
patent: 3790279 (1974-02-01), Skala
patent: 3892485 (1975-07-01), Merritt et al.
patent: 4003661 (1977-01-01), Yamano
patent: 4029554 (1977-06-01), Ellison
patent: 4047814 (1977-09-01), Westcott
patent: 4302754 (1981-11-01), Magee et al.
patent: 4492461 (1985-01-01), Jones et al.
patent: 4646070 (1987-02-01), Yasuhara et al.
patent: 4677847 (1987-07-01), Sawatari et al.
patent: 4692698 (1987-09-01), Lewis
patent: 4701713 (1987-10-01), Eaton et al.
patent: 4741204 (1988-05-01), Luck et al.
patent: 4791374 (1988-12-01), Yodice et al.
patent: 4796204 (1989-01-01), Inoue
patent: 4831362 (1989-05-01), Tsaprazis
patent: 4857829 (1989-08-01), Sagae et al.
Brochure entitled: Tribometrics, Inc. Model 56 Wear Particle Analyzer.
Paper having the heading of ICC Federrated.
Paper having the heading of Analex.
Paper having the heading of Sensys.
B. J. Roylance & A. L. Price, The Development of A Computer-Aided Systemic Particle Analysis Procedure-CASPA, Dec. 1992 Lubrication Engineering, p. 940.
Brown Kenneth W.
Fogel Anthony G.
Computational Systems Inc.
Politzer Jay L.
Williams Hezron E.
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