Patent US3974540A successfully refreshed from Google Patents.
US3974540A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Ribbon cleaning and scanning apparatus
Assignee: Individual
•
Filing: 1975-08-06
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Granted: 1976-08-17
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Expires: 1995-08-06
Abstract
Abstract An apparatus for scanning and cleaning computer printout ribbons is provided with an electromagnetic clutch drive which facilitates connection and reversal of direction of the motor drives for transporting the ribbon in a forward or reverse direction of travel. This increases the production rate of the apparatus. Also, a magnetic means is provided to remove metal particles from the ribbon in combination with a vacuum means which uses suction to clean lint, dirt and other foreign matter from the ribbon as it travels from a supply chuck means to a take up chuck means.
Inventors
- 👤 William J. Bonner
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 08:45
CPC Classifications
B; B41; B41J; B41J31/00; B41J31/14
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
194 words
A cleaning and scanning apparatus for cleaning and scanning ribbons having one end attached to a supply core and an opposite end connected to a take up core, said apparatus comprising: a frame means, a supply chuck means supported by said frame means for mounting the supply core for rotation about a first axis, a take up chuck means mounted on said frame means and spaced from said supply chuck means for receiving and supporting the take up core, a vacuum means extending across the ribbon for applying suction to the ribbon to clean the ribbon of foreign material thereon, a light source located behind the ribbon for allowing the operator to view the ribbon and to spot a hole, tears or defects in the ribbon, a motor drive means for driving the take up chuck means in a forward direction and for driving the ribbon in a forward direction and for selectively driving a supply chuck means in the opposite direction to reverse the direction of the ribbon travel, and at least one electromagnetic clutch means operable to clutch or unclutch the driving of one of said chuck means by said motor means.
Claim 2
Dependent Claim
194 words
A cleaning and scanning apparatus for cleaning and scanning ribbons having one end attached to a supply core and an opposite end connected to a take up core, said apparatus comprising: a frame means, a supply chuck means supported by said frame means for mounting the supply core for rotation about a first axis, a take up chuck means mounted on said frame means and spaced from said supply chuck means for receiving and supporting the take up core, a vacuum means extending across the ribbon for applying suction to the ribbon to clean the ribbon of foreign material thereon, a light source located behind the ribbon for allowing the operator to view the ribbon and to spot a hole, tears or defects in the ribbon, a motor drive means for driving the take up chuck means in a forward direction and for driving the ribbon in a forward direction and for selectively driving a supply chuck means in the opposite direction to reverse the direction of the ribbon travel, and at least one electromagnetic clutch means operable to clutch or unclutch the driving of one of said chuck means by said motor means.
Claim 3
Dependent Claim
35 words
An apparatus in accordance with claim 1 in which an electrical switch means is provided for operating said electromagnetic clutch means to stop and to start the turning movement of one of said chuck means.
Claim 4
Dependent Claim
21 words
An apparatus in accordance with claim 2 in which said electromagnetic clutch means is connected to said take up chuck means.
Claim 5
Dependent Claim
38 words
An apparatus in accordance with claim 1 in which said electromagnetic clutch means comprises a first electromagnetic clutch for selectively driving said take up chuck means and a second electromagnetic clutch for selectively driving said supply chuck means.
Claim 6
Dependent Claim
191 words
A cleaning and scanning apparatus for cleaning and scanning ribbons having one end attached to a supply core and an opposite end connected to a take up core, said apparatus comprising: a frame means, a supply chuck means supported by said frame means for mounting the supply core for rotation about a first axis, a take up chuck means mounted on said frame means and spaced from said supply chuck means for receiving and supporting the take up core, a vacuum means extending across the ribbon for applying suction to the ribbon to clean the ribbon of foreign material thereon, a light source located behind the ribbon for allowing the operator to view the ribbon and to spot a hole, tears or defects in the ribbon, a motor drive means for driving the take up chuck means in a forward direction and for driving the ribbon in a forward direction and for selectively driving a supply chuck means in the opposite direction to reverse the direction of the ribbon travel, and magnetic means for attracting magnetizable metal from the ribbon to remove the same during the cleaning operation by magnetic attraction.
Claim 7
Dependent Claim
191 words
A cleaning and scanning apparatus for cleaning and scanning ribbons having one end attached to a supply core and an opposite end connected to a take up core, said apparatus comprising: a frame means, a supply chuck means supported by said frame means for mounting the supply core for rotation about a first axis, a take up chuck means mounted on said frame means and spaced from said supply chuck means for receiving and supporting the take up core, a vacuum means extending across the ribbon for applying suction to the ribbon to clean the ribbon of foreign material thereon, a light source located behind the ribbon for allowing the operator to view the ribbon and to spot a hole, tears or defects in the ribbon, a motor drive means for driving the take up chuck means in a forward direction and for driving the ribbon in a forward direction and for selectively driving a supply chuck means in the opposite direction to reverse the direction of the ribbon travel, and magnetic means for attracting magnetizable metal from the ribbon to remove the same during the cleaning operation by magnetic attraction.
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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) | 1979-08-17 | 1980-02-16 | 1980-08-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-08-17 | 1984-02-16 | 1984-08-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-08-17 | 1988-02-16 | 1988-08-17 | $7700.00 | Window Closed / Lapsed |