US3869209A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for determining the amount of the dispersed phase in a suspension
Assignee: Individual
•
Filing: 1973-09-04
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Granted: 1975-03-04
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Expires: 1993-09-04
Abstract
Abstract The amount of the dispersed phase in a suspension is determined by causing the suspension to flow in a free falling jet, directing a beam of light transversely on the jet, and measuring the light scattered and otherwise deflected by the jet by means of at least two photoelectric cells placed about the jet outside the incident light beam and its portion linearly transmitted by the jet. Three fixedly arranged photoelectric cells permit useful readings on dispersions of a wide variety of materials.
Inventors
- 👤 Willy Sigrist
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 06:34
CPC Classifications
G; G01; G01N; G01N21/00; G01N21/17; G01N21/47; G01N21/49; G01N21/53; G01N15/00; G01N15/02; G01N15/0205
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
276 words
Apparatus for determining the amount of the dispersed phase in a suspension comprising, in combination: a. nozzle means for discharging said suspension as a jet having a first longitudinal axis; b. a light source; c. first optical means for directing light of said source toward said jet as an incident beam having an optical second axis intersecting said first axis; d. a photoelectric element; e. second optical means for directing light of said beam scattered by said jet on said photoelectric element and for thereby causing said element to generate an electrical signal indicative of the amount of said scattered light, 1. said second optical means having an optical third axis obliquely inclined relative to a reference plane defined by said second axis and a straight line perpendicular to said first and second axes through the point of intersection of said first and second axes, 2. said second optical means being spaced from said plane; f. another photoelectric element; g. third optical means having an optical fourth axis and directing light of said incident beam reflected from said jet toward said other photoelectric element, 1. the axis of the portion of said incident beam linearly transmitted by said jet and said fourth axis defining an angle of 90* to 150*; h. light trap means spaced from said point of intersection in the direction of said second axis away from said light source for absorbing the light of said source linearly transmitted by said jet; and i. indicating means in circuit with each of said photoelectric elements for producing a visible indication of the amount of light directed toward said elements by the associated optical means respectively.
Claim 2
Dependent Claim
276 words
Apparatus for determining the amount of the dispersed phase in a suspension comprising, in combination: a. nozzle means for discharging said suspension as a jet having a first longitudinal axis; b. a light source; c. first optical means for directing light of said source toward said jet as an incident beam having an optical second axis intersecting said first axis; d. a photoelectric element; e. second optical means for directing light of said beam scattered by said jet on said photoelectric element and for thereby causing said element to generate an electrical signal indicative of the amount of said scattered light, 1. said second optical means having an optical third axis obliquely inclined relative to a reference plane defined by said second axis and a straight line perpendicular to said first and second axes through the point of intersection of said first and second axes, 2. said second optical means being spaced from said plane; f. another photoelectric element; g. third optical means having an optical fourth axis and directing light of said incident beam reflected from said jet toward said other photoelectric element, 1. the axis of the portion of said incident beam linearly transmitted by said jet and said fourth axis defining an angle of 90* to 150*; h. light trap means spaced from said point of intersection in the direction of said second axis away from said light source for absorbing the light of said source linearly transmitted by said jet; and i. indicating means in circuit with each of said photoelectric elements for producing a visible indication of the amount of light directed toward said elements by the associated optical means respectively.
Claim 3
Dependent Claim
38 words
said second optical means being spaced from said plane; f. another photoelectric element; g. third optical means having an optical fourth axis and directing light of said incident beam reflected from said jet toward said other photoelectric element,
Claim 4
Dependent Claim
38 words
said second optical means being spaced from said plane; f. another photoelectric element; g. third optical means having an optical fourth axis and directing light of said incident beam reflected from said jet toward said other photoelectric element,
Claim 5
Dependent Claim
93 words
Apparatus as set forth in claim 1, further comprising an additional photoelectric element, fourth optical means having an optical fifth axis and directing light of said incident beam deflected by said jet toward said additional photoelectric element, the axis of said portion of said incident beam linearly transmitted by said jet and said fifth axis defining an angle of 75* to 105*, and indicating means in circuit with said additional photoelectric element for producing a visible indication of the amount of light directed toward said additional photoelectric element by said fourth optical means.
Claim 6
Dependent Claim
27 words
Apparatus as set forth in claim 2, wherein the angle defined by said fifth axis and by the axis of said linearly transmitted portion is approximately 90*.
Claim 7
Dependent Claim
41 words
Apparatus as set forth in claim 2, wherein the angle defined by the axis of said linearly transmitted portion and said fourth axis is greater than the angle defined by the axis of said linearly transmitted portion and said fifth axis.
Claim 8
Dependent Claim
23 words
Apparatus as set forth in claim 1, wherein said third axis diverges from said reference plane at an angle of 15* to 40*C.
References Cited (Backward Citations)
US3758787A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1978-03-03 | 1978-09-02 | 1979-03-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-03-03 | 1982-09-02 | 1983-03-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-03-03 | 1986-09-02 | 1987-03-04 | $7700.00 | Window Closed / Lapsed |