Patent US4432851A successfully refreshed from Google Patents.
Patent US4160360A successfully refreshed from Google Patents.
US4160360A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Optical strand sensor for detecting a filament being wound and twisted on a spool
Assignee: Owens Corning
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Filing: 1978-07-27
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Granted: 1979-07-10
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Expires: 1998-07-27
Abstract
Abstract A guide is placed between a strand of fibers and a winder, which twists the strand as it is wound. The guide is circular so the strand may be maintained in an unconstrained twisting path between the receiver and the supply as it is being wound and twisted and includes an optical sensor mounted about the area of movement of the filament to detect the presence of the filament and stop the winding process if the strand breaks.
Inventors
- 👤 Robert L. Carvalho
- 👤 Sheldon A. Canfield
- 👤 Gary Steinbaugh
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 20:09
CPC Classifications
D; D01; D01H; D01H13/00; D01H13/14; D01H13/16; D01H13/1616; D01H13/1633; D01H13/165; D01H13/04
Claims Analysis
Total Claims: 30
Claim 1
Independent Claim
90 words
An apparatus for detecting a continuous filamentary material comprising a means for guiding said filamentary material placed in the path of the material, a supply for said material, a means for twisting and collecting said material as it is removed from said supply, the path of said material from said supply being substantially a free twist path to said means for collecting said material, said apparatus having a sensor mounted for detecting the presence of the material in the path defined by said supply, collecting means and said guide means.
Claim 2
Independent Claim
90 words
An apparatus for detecting a continuous filamentary material comprising a means for guiding said filamentary material placed in the path of the material, a supply for said material, a means for twisting and collecting said material as it is removed from said supply, the path of said material from said supply being substantially a free twist path to said means for collecting said material, said apparatus having a sensor mounted for detecting the presence of the material in the path defined by said supply, collecting means and said guide means.
Claim 3
Dependent Claim
25 words
The apparatus of claim 1 wherein said means for guiding has a side opposite said supply and said sensor is mounted on said opposite side.
Claim 4
Dependent Claim
22 words
The apparatus of claim 1 wherein said sensor is mounted on said guiding means on the supply side of the guiding means.
Claim 5
Dependent Claim
28 words
The apparatus of claim 1 wherein said sensor is an optical sensor having a light source and a sensor portion mounted to receive light reflected from the material.
Claim 6
Dependent Claim
27 words
The apparatus of claim 4 wherein said material describes a cone as it is being wound and twisted, said cone having its apex at said supply end.
Claim 7
Dependent Claim
20 words
The apparatus of claim 5 wherein said cone described by said material passes through said means for guiding said material.
Claim 8
Dependent Claim
43 words
The apparatus of claim 6 wherein said means for guiding is a body having an opening substantially circumscribing the path of said material as it moves transverse to its principal direction of movement from the supply to the means for collecting the material.
Claim 9
Dependent Claim
31 words
The apparatus of claim 7 wherein said sensor has a region of maximum sensitivity, said sensor being located with its region of maximum sensitivity substantially at a surface of said guide.
Claim 10
Dependent Claim
25 words
The apparatus of claim 3 wherein said sensor light source and reflected light sensor is focused at the inner surface of said means for guiding.
Claim 11
Dependent Claim
26 words
The apparatus of claim 9 wherein said means for guiding describes a plane and with the axis of said cone being substantially perpendicular to said plane.
Claim 12
Dependent Claim
23 words
The apparatus of claim 1 wherein said means for guiding is a body having an opening and said material passes through said opening.
Claim 13
Independent Claim
111 words
An apparatus for detecting a continuous material comprising a means for guiding said material displaced in the path of the material, a supply for said material, a means for twisting said collecting said material as it is removed from said supply, the path of said material from said supply through said guide means being substantially a free twist path to said means for collecting said material, said means for guiding having means for mounting a sensor, a sensor mounted on said means for guiding for detecting the presence of the strand, and said means for guiding has a side opposite said supply and said sensor is mounted on said opposite side.
Claim 14
Independent Claim
111 words
An apparatus for detecting a continuous material comprising a means for guiding said material displaced in the path of the material, a supply for said material, a means for twisting said collecting said material as it is removed from said supply, the path of said material from said supply through said guide means being substantially a free twist path to said means for collecting said material, said means for guiding having means for mounting a sensor, a sensor mounted on said means for guiding for detecting the presence of the strand, and said means for guiding has a side opposite said supply and said sensor is mounted on said opposite side.
Claim 15
Independent Claim
109 words
An apparatus for detecting a continuous filament comprising a means for guiding said filament displaced in the path of the material, a supply for said material, a means for twisting said collecting said material as it is removed from said supply, the path of said material from said supply through said guide means being substantially a free twist path to said means for collecting said material said means for guiding having means for mounting a sensor, a sensor, mounted on said means for guiding, for detecting the presence of the material, and wherein said sensor is mounted on said guiding means on the supply side of the guiding means.
Claim 16
Independent Claim
109 words
An apparatus for detecting a continuous filament comprising a means for guiding said filament displaced in the path of the material, a supply for said material, a means for twisting said collecting said material as it is removed from said supply, the path of said material from said supply through said guide means being substantially a free twist path to said means for collecting said material said means for guiding having means for mounting a sensor, a sensor, mounted on said means for guiding, for detecting the presence of the material, and wherein said sensor is mounted on said guiding means on the supply side of the guiding means.
Claim 17
Independent Claim
143 words
An apparatus for detecting a continuous filamentary material comprising a means for guiding the filamentary material placed in the path of the material, a supply for the said material, a means for twisting and collecting said material is it is removed from said supply, the path of said material from said supply being substantially a free twist path to the said means for collecting said material, said apparatus having a sensor mounted for detecting the presence of the material in the path defined by the supply, collecting and guiding means, said sensor being an optical sensor having a light source and a sensor portion mounted to receive light reflected from the material and wherein said means for guiding is a body having an opening substantially circumscribing the path of the said material as it is being twisted and wound from said supply means.
Claim 18
Independent Claim
143 words
An apparatus for detecting a continuous filamentary material comprising a means for guiding the filamentary material placed in the path of the material, a supply for the said material, a means for twisting and collecting said material is it is removed from said supply, the path of said material from said supply being substantially a free twist path to the said means for collecting said material, said apparatus having a sensor mounted for detecting the presence of the material in the path defined by the supply, collecting and guiding means, said sensor being an optical sensor having a light source and a sensor portion mounted to receive light reflected from the material and wherein said means for guiding is a body having an opening substantially circumscribing the path of the said material as it is being twisted and wound from said supply means.
Claim 19
Dependent Claim
29 words
The apparatus of claim 14 wherein the said material describes a cone as it is being wound and twisted, and said cone has its apex at the supply end.
Claim 20
Dependent Claim
32 words
The apparatus of claim 14 wherein the said sensor has a region of maximum sensitivity, said sensor being located with its region of maximum sensitivity substantially at a surface of said guide.
Claim 21
Dependent Claim
27 words
The apparatus of claim 16 wherein said material describes a cone as it is being wound and twisted, said cone having its apex at its supply end.
Claim 22
Dependent Claim
20 words
The apparatus of claim 17 wherein said cone described by said material passes through said means for guiding said material.
Claim 23
Dependent Claim
26 words
The apparatus of claim 18 wherein said means for guiding describes a plane and with the axis of said cone being substantially perpendicular to said plane.
Claim 24
Independent Claim
126 words
An apparatus for detecting a continuous filamentary material comprising a means for guiding said filementary material placed in the path of the material, a supply for said material, a means for twisting and collecting said material as it is removed from said supply, the path of said material from said supply being substantially a free twist path to said means for collecting said material, said apparatus having a sensor mounted for detecting the presence of the material, said means for guiding being a body having an opening, with said material passing through said opening, said sensor being located on said guide and having a region of greatest sensitivity, said sensor being located with its region of greatest sensitivity substantially at the inner surface of said guide.
Claim 25
Independent Claim
126 words
An apparatus for detecting a continuous filamentary material comprising a means for guiding said filementary material placed in the path of the material, a supply for said material, a means for twisting and collecting said material as it is removed from said supply, the path of said material from said supply being substantially a free twist path to said means for collecting said material, said apparatus having a sensor mounted for detecting the presence of the material, said means for guiding being a body having an opening, with said material passing through said opening, said sensor being located on said guide and having a region of greatest sensitivity, said sensor being located with its region of greatest sensitivity substantially at the inner surface of said guide.
Claim 26
Dependent Claim
11 words
The apparatus of claim 20 wherein said opening is substantially circular.
Claim 27
Dependent Claim
24 words
The apparatus of claim 20 wherein said sensor has a light source and a reflected light sensor and is focused at said inner surface.
Claim 28
Dependent Claim
13 words
The apparatus of claim 22 wherein said light source is a light-emitting diode.
Claim 29
Dependent Claim
31 words
The apparatus of claim 32 wherein said filament passing through said guide describes a cone as it is being wound and twisted with the cone having its apex at said supply.
Claim 30
Dependent Claim
29 words
The apparatus of claim 22 wherein said circular opening of said means for guiding describes a plane with the axis of said cone being substantially perpendicular to said plane.
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) | 1982-07-09 | 1983-01-08 | 1983-07-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1986-07-09 | 1987-01-08 | 1987-07-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1990-07-09 | 1991-01-08 | 1991-07-10 | $7700.00 | Window Closed / Lapsed |