Patent US4393313A successfully refreshed from Google Patents.
US4393313A
Expired / Lapsed
US
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Width detector system
Assignee: BINKS INDUSTRIES Inc
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Filing: 1981-04-29
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Granted: 1983-07-12
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Expires: 2001-04-29
Abstract
Abstract Apparatus for continuously measuring the width of moving strip materials and visually displaying such measurements; the same utilizing a pair of motorized edge sensors for locating and following the strip edges relative to a fixed reference datum and signal generators for measuring the width of the material and energizing alarm and/or recording systems whenever the measured width exceeds predetermined tolerance limits.
Inventors
- 👤 James D. Calkins
- 👤 Eugene E. Bushong
- 👤 Lee R. Schuck
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 09:19
CPC Classifications
G; G01; G01B; G01B7/00; G01B7/02; G01B7/04; G01B7/048; G01B11/00; G01B11/02; G01B11/04; G01B11/046
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
220 words
A width detector system for constantly monitoring and measuring the width of moving elongated strip materials, comprising: a pair of carriages, one movably mounted adjacent each lateral edge of a strip of material to be measured; a pair of sensor means mounted, one on each carriage, for movement therewith along parallel paths transversely of the elongated axis of said strip material; each sensor means comprising a light source and a photo sensitive cell disposed on opposite faces of said strip material and productive of signals proportional to the intensity of light received by said cell; a pair of drive means, one for bidirectionally moving each carriage and sensor means; a pair of pulse generators, one operatively driven by each drive means, and operable to generate positive and negative output signals dependent on the direction of travel of said carriages along said paths; control means responsive to signals from each sensor means for controlling its associated said drive means whereby to cause each sensor means to independently follow an adjacent edge of said material, and measurement means responsive to the combined output signals of said generators for constantly monitoring the distances of said sensor means from a fixed datum including means for totalizing said distances whereby to determine the measured distance between said sensor means representing the width of said material.
Claim 2
Dependent Claim
220 words
A width detector system for constantly monitoring and measuring the width of moving elongated strip materials, comprising: a pair of carriages, one movably mounted adjacent each lateral edge of a strip of material to be measured; a pair of sensor means mounted, one on each carriage, for movement therewith along parallel paths transversely of the elongated axis of said strip material; each sensor means comprising a light source and a photo sensitive cell disposed on opposite faces of said strip material and productive of signals proportional to the intensity of light received by said cell; a pair of drive means, one for bidirectionally moving each carriage and sensor means; a pair of pulse generators, one operatively driven by each drive means, and operable to generate positive and negative output signals dependent on the direction of travel of said carriages along said paths; control means responsive to signals from each sensor means for controlling its associated said drive means whereby to cause each sensor means to independently follow an adjacent edge of said material, and measurement means responsive to the combined output signals of said generators for constantly monitoring the distances of said sensor means from a fixed datum including means for totalizing said distances whereby to determine the measured distance between said sensor means representing the width of said material.
Claim 3
Dependent Claim
26 words
The combination of claim 1, and means responsive to said measurement means for initiating alarm means in the event said measured distance exceeds predetermined tolerance limits.
Claim 4
Dependent Claim
38 words
The combination of claim 1, and means for setting tolerance limits for the measured distance between said sensor means, and means responsive to said measurement means for initiating alarm means in the event said tolerance limits are exceeded.
Claim 5
Dependent Claim
34 words
The combination of claim 1, and a zeroizing fixture mounted centrally between said sensor means and providing said reference datum from which the distance of each sensor means is determined by said measurement means.
Claim 6
Dependent Claim
31 words
The combination of claim 4, wherein said measurement means responds to the movement of each sensor means relative to said fixed datum reference in determining the distance between said sensor means.
Claim 7
Dependent Claim
26 words
The combination of claim 1, wherein each said drive means comprises a stepper motor and rotatable screw means for bidirectionally moving each carriage and sensor means.
Claim 8
Dependent Claim
19 words
The combination of claim 1, and means for manually controlling the directional movements of said carriages and sensor means.
Claim 9
Dependent Claim
67 words
The combination of claim 1, wherein said measurement means comprises counting means and means for visually displaying the distance count between said sensor means, means for automatically reversing each of said carriages to move away from one another whenever said counting means indicates a zero distance, and means for de-energizing said drive means when said carriages remain at their limits of separating movement for a predetermined time.
Claim 10
Dependent Claim
18 words
The combination of claim 8, and manually operable means for overriding said means for automatically reversing said carriages.
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) | 1986-07-11 | 1987-01-10 | 1987-07-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1990-07-11 | 1991-01-10 | 1991-07-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1994-07-11 | 1995-01-10 | 1995-07-12 | $7700.00 | Window Closed / Lapsed |