US3765654A
Expired / Lapsed
US
⏱️ 0.0 years remaining
System for measuring and controlling mixture content
Assignee: Continental Can Co Inc
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Filing: 1971-08-06
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Granted: 1973-10-16
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Expires: 1991-08-06
Abstract
Abstract A method of detecting the ratio of component particles in a mixture wherein the quantity of one of the component particles is continually decreased, as in an electrostatic printing operation, includes the provision of a window adjacent the path of movement of the mix of component particles and contacting particles in transit therepast, illumination of the mix through the window and detection of light reflected from the mix through the window. Replenishment of the depleted component may be electrically controlled in accordance with the light reflected and optical filter provisions may be employed to limit the spectrum of the light with which the mix is illuminated where the components of the mix differ in color. Diversion of a quantity of mix to bypass an area wherein depletion of one component occurs effects mixing in the direction of flow and cross-flow mixing effects greater consistency in the mix transverse to the direction of flow.
Inventors
- 👤 K Rarey
- 👤 J Kennedy
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 19:11
CPC Classifications
G; G03; G03G; G03G15/00; G03G15/06; G03G15/08; G03G15/0822; G03G15/0848; G03G15/0849; G03G15/0855
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
105 words
A mixture monitoring system for detecting the ratio of components in a moving mix of two or more components of different optical qualities, a window located along a path of movement of the mix and having surface means disposed at an acute angle to the horizontal for supporting the mix for sliding movement therealong in cleansing relation to the window, a light source for illuminating the mix in transit past said window, photosensitive detector means for detecting the light reflected from said mix, and means connected with said photo-sensitive detector means for producing an electrical signal representative of the ratio of components of said mix.
Claim 2
Dependent Claim
105 words
A mixture monitoring system for detecting the ratio of components in a moving mix of two or more components of different optical qualities, a window located along a path of movement of the mix and having surface means disposed at an acute angle to the horizontal for supporting the mix for sliding movement therealong in cleansing relation to the window, a light source for illuminating the mix in transit past said window, photosensitive detector means for detecting the light reflected from said mix, and means connected with said photo-sensitive detector means for producing an electrical signal representative of the ratio of components of said mix.
Claim 3
Dependent Claim
33 words
A mixture monitoring system according to claim 1 including means for limiting the spectrum of light to increase variations in reflection from said mix resultant from variations in the ratio of components therein.
Claim 4
Dependent Claim
136 words
A mixture monitoring system for detecting the ratio of components in a moving mix of two or more components of differing optical qualities, a window located along a path of movement of the mix and having surface means for supporting the mix for sliding movement therealong in cleansing relation to the window, a light source for illuminating the mix in transit past said window, photo-sensitive detector means for detecting the light reflected from said mix, and means connected with said photo-sensitive detector means for producing an electrical signal representative of the ratio of components of said mix, further comprising means for diverting a portion of the mix and for combining the diverted portion with mix in transit to said window, and cross-flow mixing means for providing mixing transverse to the direction of movement of the mix.
Claim 5
Dependent Claim
136 words
A mixture monitoring system for detecting the ratio of components in a moving mix of two or more components of differing optical qualities, a window located along a path of movement of the mix and having surface means for supporting the mix for sliding movement therealong in cleansing relation to the window, a light source for illuminating the mix in transit past said window, photo-sensitive detector means for detecting the light reflected from said mix, and means connected with said photo-sensitive detector means for producing an electrical signal representative of the ratio of components of said mix, further comprising means for diverting a portion of the mix and for combining the diverted portion with mix in transit to said window, and cross-flow mixing means for providing mixing transverse to the direction of movement of the mix.
Claim 6
Dependent Claim
57 words
A mixture monitoring system according to claim 3 further comprising means for controlling the ratio of components in said mix including means located adjacent the path of movement of said mix for supplying to said mix an additional portion of one of said components, and means responsive to said electrical signal for controlling said means for supplying.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-10-15 | 1977-04-16 | 1977-10-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-10-15 | 1981-04-16 | 1981-10-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-10-15 | 1985-04-16 | 1985-10-16 | $7700.00 | Window Closed / Lapsed |