US3132253A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Web guidance apparatus
Assignee: GPE Controls Inc
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Filing: 1960-07-01
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Granted: 1964-05-05
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Expires: 1980-07-01
Abstract
No abstract record available.
Inventors
- 👤 Spencer L Sorsen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 02:51
CPC Classifications
B; B65; B65H; B65H23/00; B65H23/02; B65H23/032; B65H23/038; B65H23/0204; B65H23/0216
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
178 words
LINE FOLLOWER CONTROL APPARATUS FOR CONTROLLING THE LATERAL DEVIATION OF A WEB OF MATERIAL AS IT IS MOVED LONGITUDINALLY COMPRISING IN COMBINATION, A LIGHT SOURCE ARRANGED FOR DIRECTING A CONCENTRATED BEAM OF LIGHT AT AN ACUTE ANGLE UPON A CONTINUOUS REFERENCE LINE ASSOCIATED WITH THE WEB OF MATERIAL, A SINGLE PHOTO-CONDUCTIVE CELL ADAPTED TO RECEIVE A PORTION OF SAID CONCENTRATED BEAM OF LIGHT BY REFLECTION FROM SAID WEB OF MATERIAL, AN AMPLIFIER ADAPTED TO GENERATE A VOLTAGE POTENTIAL WHICH IS PROPORTIONAL TO THE INTENSITY OF THE REFLECTED LIGHT RECEIVED BY SAID PHOTO-CONDUCTIVE CELL, HYDRAULIC POWER MEANS, AND A JET PIPE REGULATOR INCLUDING A JET PIPE AND AN ELECTO-MAGNETIC MEANS RESPONSIVE TO VOLTAGE OUTPUT OF SAID AMPLIFIER WHEREBY THE JET PIPE IS MOVED TO DEVELOP A PRESSURE DIFFERENTIAL WITHIN THE HYDRAULIC POWER MEANS IN RELATION TO THE VOLTAGE GENERATED BY THE AMPLIFIER, SAID HYDRAULIC POWER MEANS BEING OPERATIVE TO CONTROL THE LATERAL DEVIATION OF SAID WEB OF MATERIAL, WHEREBY THE REFERENCE LINE ASSOCIATED WITH THE WEB OF MATERIAL AND THE SINGLE PHOTO-CONDUCTIVE CELL ARE MAINTAINED IN A FIXED RELATIONSHIP.
Claim 2
Dependent Claim
178 words
LINE FOLLOWER CONTROL APPARATUS FOR CONTROLLING THE LATERAL DEVIATION OF A WEB OF MATERIAL AS IT IS MOVED LONGITUDINALLY COMPRISING IN COMBINATION, A LIGHT SOURCE ARRANGED FOR DIRECTING A CONCENTRATED BEAM OF LIGHT AT AN ACUTE ANGLE UPON A CONTINUOUS REFERENCE LINE ASSOCIATED WITH THE WEB OF MATERIAL, A SINGLE PHOTO-CONDUCTIVE CELL ADAPTED TO RECEIVE A PORTION OF SAID CONCENTRATED BEAM OF LIGHT BY REFLECTION FROM SAID WEB OF MATERIAL, AN AMPLIFIER ADAPTED TO GENERATE A VOLTAGE POTENTIAL WHICH IS PROPORTIONAL TO THE INTENSITY OF THE REFLECTED LIGHT RECEIVED BY SAID PHOTO-CONDUCTIVE CELL, HYDRAULIC POWER MEANS, AND A JET PIPE REGULATOR INCLUDING A JET PIPE AND AN ELECTO-MAGNETIC MEANS RESPONSIVE TO VOLTAGE OUTPUT OF SAID AMPLIFIER WHEREBY THE JET PIPE IS MOVED TO DEVELOP A PRESSURE DIFFERENTIAL WITHIN THE HYDRAULIC POWER MEANS IN RELATION TO THE VOLTAGE GENERATED BY THE AMPLIFIER, SAID HYDRAULIC POWER MEANS BEING OPERATIVE TO CONTROL THE LATERAL DEVIATION OF SAID WEB OF MATERIAL, WHEREBY THE REFERENCE LINE ASSOCIATED WITH THE WEB OF MATERIAL AND THE SINGLE PHOTO-CONDUCTIVE CELL ARE MAINTAINED IN A FIXED RELATIONSHIP.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-05-05 | 1967-11-04 | 1968-05-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-05-05 | 1971-11-04 | 1972-05-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-05-05 | 1975-11-04 | 1976-05-05 | $7700.00 | Window Closed / Lapsed |