Patent US4025202A successfully refreshed from Google Patents.
US4025202A
Expired / Lapsed
US
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Method and apparatus for inspecting the bottoms of hollow glass articles
Assignee: Ball Corp
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Filing: 1975-08-07
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Granted: 1977-05-24
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Expires: 1995-08-07
Abstract
Abstract Apparatus and method for inspecting the inside bottom surface of glassware for tramp glass by irradiating said surface with light having an angle of incidence of approximately 15 degrees and sensing any light transmitted through said surface as an indication of the presence of tramp glass.
Inventors
- 👤 David W. Deane
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 10:47
CPC Classifications
G; G01; G01N; G01N21/00; G01N21/84; G01N21/88; G01N21/90; G01N21/9045
Claims Analysis
Total Claims: 19
Claim 1
Independent Claim
74 words
Apparatus for inspecting the bottom of glassware comprising: means for illuminating the inside bottom surface of said glassware; and means for sensing illumination transmitted through said bottom surface, wherein said means for illuminating is positioned to direct illumination through a side wall of said glassware to illuminate said bottom surface and wherein the angle of incidence of said illumination on said bottom surface results in optimum reflection of said illumination by said bottom surface.
Claim 2
Dependent Claim
74 words
Apparatus for inspecting the bottom of glassware comprising: means for illuminating the inside bottom surface of said glassware; and means for sensing illumination transmitted through said bottom surface, wherein said means for illuminating is positioned to direct illumination through a side wall of said glassware to illuminate said bottom surface and wherein the angle of incidence of said illumination on said bottom surface results in optimum reflection of said illumination by said bottom surface.
Claim 3
Dependent Claim
44 words
Apparatus for inspecting the bottom of glassware as set forth in claim 1 wherein said means for sensing illumination is disposed generally in alignment with the longitudinal axis of said glassware and external to said glassware to receive illumination transmitted through said bottom surface.
Claim 4
Dependent Claim
91 words
Apparatus for inspecting the bottom of glassware while said glassware is moving along a conveyor, said apparatus comprising: means for sensing the presence of said glassware in an inspection zone; means for illuminating the entire interior bottom surface of said glassware through the side walls of said glassware while said glassware is in said inspection zone; means for sensing the quantum of light transmitted through said bottom surface; means for generating a reject signal in response to a predetermined level of sensed illumination to thereby cause said glassware to be rejected.
Claim 5
Dependent Claim
91 words
Apparatus for inspecting the bottom of glassware while said glassware is moving along a conveyor, said apparatus comprising: means for sensing the presence of said glassware in an inspection zone; means for illuminating the entire interior bottom surface of said glassware through the side walls of said glassware while said glassware is in said inspection zone; means for sensing the quantum of light transmitted through said bottom surface; means for generating a reject signal in response to a predetermined level of sensed illumination to thereby cause said glassware to be rejected.
Claim 6
Dependent Claim
53 words
Apparatus for inspecting the bottom of glassware as set forth in claim 3 wherein said glassware is in an inverted position during the inspection cycle and wherein said illumination is directed at such angle whereby substantially no light is transmitted through said bottom surface in the absence of a defect in said glassware.
Claim 7
Dependent Claim
58 words
Apparatus for inspecting the bottom of glassware as set forth in claim 3 wherein said means for illuminating the interior bottom surface of said glassware is a plurality of light sources disposed circumferentially to said glassware whereby light produced thereby is directed through the side walls of said glassware and onto the interior bottom surface of said glassware.
Claim 8
Dependent Claim
72 words
Apparatus for inspecting the bottom of glassware as set forth in claim 5 wherein said apparatus detects the presence of tramp glass or fused glass on the interior surface of the bottom of said glassware and wherein said means for illuminating said bottom surface are disposed to cause said illumination to have an angle of incidence on said bottom surface which results in optimum reflection of said illumination by said bottom surface.
Claim 9
Dependent Claim
25 words
Apparatus for inspecting the bottom of glassware as set forth in claim 6 wherein the angle of incidence is between 5 degrees and 30 degrees.
Claim 10
Dependent Claim
21 words
Apparatus for inspecting the bottom of glassware as set forth in claim 6 wherein the angle of incidence is 15 degrees.
Claim 11
Independent Claim
89 words
A method for inspecting glassware for presence of tramp glass and fused glass on the bottom interior surface of said glassware comprising the steps of: presenting said glassware individually and sequentially to an inspection zone; irradiating the entire interior surface of said bottom with illumination directed through the side walls of said glassware; sensing illumination transmitted through said bottom due to the presence of tramp glass or fused glass on said bottom; and generating a signal in response to any transmissions sensed to reject the glassware causing said transmissions.
Claim 12
Independent Claim
89 words
A method for inspecting glassware for presence of tramp glass and fused glass on the bottom interior surface of said glassware comprising the steps of: presenting said glassware individually and sequentially to an inspection zone; irradiating the entire interior surface of said bottom with illumination directed through the side walls of said glassware; sensing illumination transmitted through said bottom due to the presence of tramp glass or fused glass on said bottom; and generating a signal in response to any transmissions sensed to reject the glassware causing said transmissions.
Claim 13
Dependent Claim
34 words
The method of claim 9 which further includes the step of: preventing generation of said signal in response to transmitted illumination except when said container is in a known position in said inspection zone.
Claim 14
Independent Claim
91 words
A method for inspecting glassware for the presence of undesired material within said glassware as said glassware is continuously moved comprising the steps of: sensing the presence of glassware in an inspection zone; directing illumination at the interior bottom surface of said glassware at such an angle whereby substantially no light passes through said bottom in the absence of undesirable material therein; sensing the light transmitted through the bottom of said glassware; and generating a reject signal when the light transmitted through the bottom of said glassware exceeds a preselected quantum.
Claim 15
Independent Claim
91 words
A method for inspecting glassware for the presence of undesired material within said glassware as said glassware is continuously moved comprising the steps of: sensing the presence of glassware in an inspection zone; directing illumination at the interior bottom surface of said glassware at such an angle whereby substantially no light passes through said bottom in the absence of undesirable material therein; sensing the light transmitted through the bottom of said glassware; and generating a reject signal when the light transmitted through the bottom of said glassware exceeds a preselected quantum.
Claim 16
Independent Claim
68 words
A method for inspecting glassware for the presence of extraneous material inside the container while said container is moving, said method comprising the steps of: irradiating the inside bottom surface of said container with light whose angle of incidence is 15 degrees, sensing the light transmitted through said inside bottom surface of said container; and generating a signal when light in excess of a predetermined amount is sensed.
Claim 17
Independent Claim
68 words
A method for inspecting glassware for the presence of extraneous material inside the container while said container is moving, said method comprising the steps of: irradiating the inside bottom surface of said container with light whose angle of incidence is 15 degrees, sensing the light transmitted through said inside bottom surface of said container; and generating a signal when light in excess of a predetermined amount is sensed.
Claim 18
Independent Claim
77 words
A method for inspecting glassware for the presence of extraneous material inside the container while said container is moving, said method comrising the steps of: irradiating the inside of said container with infrared light whose angle of incidence on the bottom of said container is 15 degrees; sensing the light transmitted through the bottom of said container with a television camera; and generating a signal when the light sensed by said camera exceeds a preselected minimum amount.
Claim 19
Independent Claim
77 words
A method for inspecting glassware for the presence of extraneous material inside the container while said container is moving, said method comrising the steps of: irradiating the inside of said container with infrared light whose angle of incidence on the bottom of said container is 15 degrees; sensing the light transmitted through the bottom of said container with a television camera; and generating a signal when the light sensed by said camera exceeds a preselected minimum amount.
References Cited (Backward Citations)
US2798605A
Cited
US3356853A
Cited
US3411005A
Cited
US3684385A
Cited
US3735144A
Cited
US3770355A
Cited
US3894806A
Cited
US3887285A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1980-05-23 | 1980-11-22 | 1981-05-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-05-23 | 1984-11-22 | 1985-05-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-05-23 | 1988-11-22 | 1989-05-24 | $7700.00 | Window Closed / Lapsed |