US3557376A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Radiation sensitive device for flow tube using moving fluid tight seal
Assignee: Honeywell Inc
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Filing: 1969-02-14
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Granted: 1971-01-19
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Expires: 1989-02-14
Abstract
Abstract A transparent film under tension is employed to provide a moving fluidtight seal over and about two opposite but longitudinal openings formed in the displaced wall of a flow tube containing moving matter that is to be continuously analyzed. This seal allows a different clean portion of the transparent film to be continuously brought over each of the aforementioned openings and thereby clean windows through which a source of radiant energy can be directed as this radiant energy is passed into and out of the moving matter in the flow tube and thence to an optical radiant energy detecting and analyzing utilitarian means, such as a turbidimeter.
Inventors
- 👤 Orest J Senyk
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 17:34
CPC Classifications
G; G01; G01N; G01N21/00; G01N21/01; G01N21/15
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
226 words
An analyzer having a chamber adapted to contain matter to be analyzed, comprising an elongated transparent fluidtight seal extending in movabLe physical contact around an outer peripheral surface of the chamber, one elongated portion of the seal being positioned to pass over a first aperture formed in the chamber wall and to provide a moving fluidtight seal with the outer surface of the chamber wall that surrounds said first aperture, another elongated portion of the seal being positioned to pass over a second aperture formed in another wall portion of the chamber that is diagonally opposite the first mentioned aperture that is formed in the wall of said chamber and to provide a moving fluid seal with the outer surface of the chamber wall that surrounds the wall forming said second aperture a radiant energy source positioned to pass radiant energy through the portions of the movable seal covering said first aperture through said last mentioned aperture into said matter and a responsive means positioned in aligned relationship with the second aperture that is formed in the wall of the chamber and the movable portion of the seal covering said last mentioned aperture to respond to the radiant energy emitted from said matter through the last mentioned aperture and associated moving seal portion as said transparent seal is moved around said outer surface of the chamber.
Claim 2
Dependent Claim
226 words
An analyzer having a chamber adapted to contain matter to be analyzed, comprising an elongated transparent fluidtight seal extending in movabLe physical contact around an outer peripheral surface of the chamber, one elongated portion of the seal being positioned to pass over a first aperture formed in the chamber wall and to provide a moving fluidtight seal with the outer surface of the chamber wall that surrounds said first aperture, another elongated portion of the seal being positioned to pass over a second aperture formed in another wall portion of the chamber that is diagonally opposite the first mentioned aperture that is formed in the wall of said chamber and to provide a moving fluid seal with the outer surface of the chamber wall that surrounds the wall forming said second aperture a radiant energy source positioned to pass radiant energy through the portions of the movable seal covering said first aperture through said last mentioned aperture into said matter and a responsive means positioned in aligned relationship with the second aperture that is formed in the wall of the chamber and the movable portion of the seal covering said last mentioned aperture to respond to the radiant energy emitted from said matter through the last mentioned aperture and associated moving seal portion as said transparent seal is moved around said outer surface of the chamber.
Claim 3
Dependent Claim
28 words
The apparatus as defined in claim 1 wherein the chamber is constructed of a polished steel material, and the seals are constructed of a silicon coated polytetrafluorethylene film.
Claim 4
Dependent Claim
31 words
The apparatus as defined in claim 1 wherein the chamber is a cylindrical flow tube and the chamber is constructed of a polytetrafluorethylene material and the seal is a polytetrafluorethylene film.
Claim 5
Dependent Claim
47 words
The apparatus as defined in claim 1 wherein the seal is constructed of polyethylene terephthalate and the chamber is a flow tube having walls forming cylindrical apertures therein that are angularly displaced from one another on opposite sides of the tube under each of said transparent seals.
Claim 6
Dependent Claim
204 words
The apparatus as defined in claim 1 wherein the seal is a transparent film in the form of an elongated tape having one end attached to a supply spool driven by a first drive means that is operated at one speed, the other end of the tape being attached to a takeup spool that is continuously driven by a second drive means that is operated at a slower speed than the speed at which the supply spool is being operated and a spring biased constant tension retaining means operably connected with the first drive means to energize the first drive means upon the occurrence of a preselected reduction in the length of the unwrapped tape and said spring biased tensioning means being further operably connected with the first drive means to deenergize and stop the first drive means upon the occurrence of a preselected increase in the length of the unwrapped tape, and rollers positioned adjacent said external wall of the chamber to guide said movable fluidtight seal portions of the tape over and surrounding the top of a wall portion of the chamber that forms the two apertures in the wall of the chamber that are angularly and longitudinally displaced from one another.
Claim 7
Dependent Claim
84 words
The apparatus as defined in claim 1 wherein the chamber is of a tube shaped configuration to accommodate the passage of said matter therethrough, and wherein the wall of said tube has a pair of cylindrical apertures formed therein diagonally displaced from one another immediately below each of said movable transparent seals, the radiation source is collimated light and the response means is a light detecting cell operably connected to an electrical measuring circuit for measuring the turbidity of the matter in the tube.
Claim 8
Dependent Claim
36 words
The apparatus as disclosed in claim 1 wherein a roller is positioned adjacent to the external wall of said chamber for guiding a movable part of the seal between said transparent wall portions of said chamber.
Claim 9
Dependent Claim
77 words
The apparatus disclosed in claim 1 wherein a single strip of film is employed as the elongated transparent fluid tight seals and wherein successive parts of one elongated portion of tHe film are moved over a first opening in the chamber to form said first mentioned moving transparent seal and wherein successive parts of another elongated portion of the film are moved over a second opening in the chamber to form said second mentioned moving transparent seal.
Claim 10
Dependent Claim
45 words
The apparatus disclosed in claim 1 wherein the source of radiation is a light source positioned to direct collimated light through the first transparent light seal at an angle into the chamber through the material and the second transparent light seal to the responsive means.
Claim 11
Dependent Claim
39 words
The apparatus as disclosed in claim 1 wherein the elongated transparent fluidtight seals are comprised of a single strip of film and a tensioning means is employed to maintain a preselected fixed amount of tension in said movable film.
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) | 1974-01-18 | 1974-07-20 | 1975-01-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-01-18 | 1978-07-20 | 1979-01-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-01-18 | 1982-07-20 | 1983-01-19 | $7700.00 | Window Closed / Lapsed |