US3640482A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Paper feed mechanism
Assignee: Graphic Sciences Inc
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Filing: 1970-03-19
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Granted: 1972-02-08
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Expires: 1990-03-19
Abstract
Abstract A device for quickly loading a document onto a drum for scanning or other purposes comprises a pair of bandlike spiral springs circumferentially wound around the drum adjacent its ends and exerting an inward force against the surface of the drum. Crossbands extending transversely between the springs hold the document flat against the drum surface under the force of the springs. The springs are each fastened to the drum at one end and are readily unwound from the drum by pulling on their free ends to extend them in a flattened position in which they receive the document for loading onto the drum. On release of the free ends the bands rewind around the drum to position the document against its surface.
Inventors
- 👤 Eric A Von Hippel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 13:56
CPC Classifications
H; H04; H04N; H04N1/00; H04N1/04; H04N1/06; H04N1/08; H04N1/0804; H04N1/0813; H04N1/083; H04N1/0847; H04N1/0865
Claims Analysis
Total Claims: 43
Claim 1
Independent Claim
147 words
Apparatus for loading a document onto a drum of a facsimile system whereon said document is to be scanned for copying on a rotating drum, said apparatus comprising A. a drum rotatable on an axis and laterally positioned by brackets, B. at least two flexible retainer straps 1. each having one end thereof attached to said drum, 2. windable upon said drum against the arcuate surface thereof and C. means for winding said straps onto said drum to position against said surface a document positioned on said straps, D. means for releasing a second end of said straps from said winding means for rotation with the drum, and E. said apparatus including a crossband 1. extending parallel with the axis of said drum to interconnect said retainer straps, and 2. arranged to position said document against said drum when said retainer straps are wound upon said drum.
Claim 2
Dependent Claim
147 words
Apparatus for loading a document onto a drum of a facsimile system whereon said document is to be scanned for copying on a rotating drum, said apparatus comprising A. a drum rotatable on an axis and laterally positioned by brackets, B. at least two flexible retainer straps 1. each having one end thereof attached to said drum, 2. windable upon said drum against the arcuate surface thereof and C. means for winding said straps onto said drum to position against said surface a document positioned on said straps, D. means for releasing a second end of said straps from said winding means for rotation with the drum, and E. said apparatus including a crossband 1. extending parallel with the axis of said drum to interconnect said retainer straps, and 2. arranged to position said document against said drum when said retainer straps are wound upon said drum.
Claim 3
Dependent Claim
56 words
windable upon said drum against the arcuate surface thereof and C. means for winding said straps onto said drum to position against said surface a document positioned on said straps, D. means for releasing a second end of said straps from said winding means for rotation with the drum, and E. said apparatus including a crossband
Claim 4
Dependent Claim
56 words
windable upon said drum against the arcuate surface thereof and C. means for winding said straps onto said drum to position against said surface a document positioned on said straps, D. means for releasing a second end of said straps from said winding means for rotation with the drum, and E. said apparatus including a crossband
Claim 5
Dependent Claim
17 words
arranged to position said document against said drum when said retainer straps are wound upon said drum.
Claim 6
Dependent Claim
17 words
arranged to position said document against said drum when said retainer straps are wound upon said drum.
Claim 7
Dependent Claim
48 words
Apparatus as defined in claim 1 wherein there are at least two of said crossbands successively arranged and forming means to interconnect the flexible straps at spaced locations along said straps and to position said document against said drum when said retainer straps are wound upon said drum.
Claim 8
Dependent Claim
13 words
windable upon said drum in a circumferential direction, C. at least one crossband
Claim 9
Dependent Claim
13 words
windable upon said drum in a circumferential direction, C. at least one crossband
Claim 10
Dependent Claim
110 words
arranged to hold a document against the surface of said drum, D. means for unwinding said band from said drum for receiving a document for loading onto said drum, and E. in which said drum has a first hub attached thereto and freely rotatable with said drum about a shaft, a second hub coaxial with said first hub but rotatable with said shaft, means releasably connecting said hubs to ensure simultaneous rotation thereof at desired times, and spring means connected between said hubs and extensible to generate a restoring torque when said first hub is rotated with respect to said second hub to thereby rewind said bands onto said drum.
Claim 11
Dependent Claim
110 words
arranged to hold a document against the surface of said drum, D. means for unwinding said band from said drum for receiving a document for loading onto said drum, and E. in which said drum has a first hub attached thereto and freely rotatable with said drum about a shaft, a second hub coaxial with said first hub but rotatable with said shaft, means releasably connecting said hubs to ensure simultaneous rotation thereof at desired times, and spring means connected between said hubs and extensible to generate a restoring torque when said first hub is rotated with respect to said second hub to thereby rewind said bands onto said drum.
Claim 12
Dependent Claim
13 words
windable upon said drum in a circumferential direction, C. at least one crossband
Claim 13
Dependent Claim
13 words
windable upon said drum in a circumferential direction, C. at least one crossband
Claim 14
Dependent Claim
134 words
arranged to hold a document against the surface of said drum, D. means for unwinding said bands from said drum for receiving a document for loading onto said drum, and E. in which said means for unwinding said bands from said drum includes first coupling means on the free eNds of said straps, an auxiliary drum, second coupling means complementary to said first coupling means connected to said drum and adapted to couple with said first coupling means when said auxiliary drum is rotated with respect to said first coupling means, and at least one auxiliary strap normally coiled around said drum and having an end thereof connected to said auxiliary drum, the other end thereof being accessible to an operator for unwinding from said first mentioned drum is to be loaded or unloaded.
Claim 15
Dependent Claim
134 words
arranged to hold a document against the surface of said drum, D. means for unwinding said bands from said drum for receiving a document for loading onto said drum, and E. in which said means for unwinding said bands from said drum includes first coupling means on the free eNds of said straps, an auxiliary drum, second coupling means complementary to said first coupling means connected to said drum and adapted to couple with said first coupling means when said auxiliary drum is rotated with respect to said first coupling means, and at least one auxiliary strap normally coiled around said drum and having an end thereof connected to said auxiliary drum, the other end thereof being accessible to an operator for unwinding from said first mentioned drum is to be loaded or unloaded.
Claim 16
Dependent Claim
19 words
said releasable detent may be disengaged allowing rotation of said drum against said spring to unwind the retainer member.
Claim 17
Dependent Claim
19 words
said releasable detent may be disengaged allowing rotation of said drum against said spring to unwind the retainer member.
Claim 18
Dependent Claim
11 words
each being windable upon said drum against the arcuate surface thereof.
Claim 19
Dependent Claim
11 words
each being windable upon said drum against the arcuate surface thereof.
Claim 20
Dependent Claim
18 words
arranged to position, succeedingly, said document against said drum when said retainer straps are wound upon said drum.
Claim 21
Dependent Claim
18 words
arranged to position, succeedingly, said document against said drum when said retainer straps are wound upon said drum.
Claim 22
Dependent Claim
53 words
Apparatus as defined in claim 1 wherein said winding and unwinding means includes a second drum rotatable with respect to said first drum and comprising coupling means thereon to couple with the other ends of said flexible retainer straps, said coupling means forming means to wind the flexible strap onto said second drum.
Claim 23
Dependent Claim
45 words
Apparatus as defined in claim 1 wherein said winding and unwinding means include a member positioned in substantially tangential relationship to, and in operable contact with, the drum and forming means to rotate said drum as said member is moved with respect to said drum.
Claim 24
Dependent Claim
62 words
Apparatus according to claim 4 which includes A. a first engaging means connected to at least one of said retainer straps and said crossbands, and B. a complementary engaging means connected to said member for engagement with said first engaging means when said member is moved in a first direction tangential to said drum for unwinding of said straps from said drum.
Claim 25
Dependent Claim
73 words
Apparatus according to claim 1 in which said drum has A. inner and outer hubs rotatable on said axis with respect to each other during loading and unloading, B. first spring means interconnecting said hubs for generating a restoring force when said hubs are rotated with respect to each other, and C. means for locking said hubs to each other when said drum is to be rotated other than for loading and unloading.
Claim 26
Dependent Claim
49 words
Apparatus according to claim 6 which includes second spring means A. having one end attached to said member, and B. opposing said first spring means on movement of said member with respect to said drum, thereby to at least partially balance the restoring force generated by said first means.
Claim 27
Dependent Claim
29 words
Apparatus according to claim 1 wherein said drum and a said crossband are electromagnetically attractive one to the other, whereby facilitating the attachment of the crossband to the drum.
Claim 28
Dependent Claim
52 words
Apparatus according to claim 2 which includes means forming an aperture in said drum and an oversized, flexible head attached to at least one of said retainer straps and said crossbands are insertable into said aperture when said bands are wound onto said drum to thereby secure said bands to said drum.
Claim 29
Dependent Claim
31 words
Apparatus for loading a document onto a drum of a facsimile system, said apparatus comprising A. a drum laterally positioned by brackets, B. a pair of flexible, resilient, spring-biased retainer straps
Claim 30
Dependent Claim
31 words
Apparatus for loading a document onto a drum of a facsimile system, said apparatus comprising A. a drum laterally positioned by brackets, B. a pair of flexible, resilient, spring-biased retainer straps
Claim 31
Dependent Claim
35 words
Apparatus according to claim 10 in which the position of said second band is adjustable along said straps with respect to said first band, whereby documents of varying sizes may be accommodated by said bands.
Claim 32
Dependent Claim
31 words
Apparatus for loading a document onto a drum of a facsimile system, said apparatus comprising A. a drum laterally positioned by brackets, B. a pair of flexible, resilient, spring-biased retainer straps,
Claim 33
Dependent Claim
31 words
Apparatus for loading a document onto a drum of a facsimile system, said apparatus comprising A. a drum laterally positioned by brackets, B. a pair of flexible, resilient, spring-biased retainer straps,
Claim 34
Dependent Claim
73 words
Apparatus according to claim 12 which includes a pair of auxiliary straps connected to said drum, said straps being unwindable from said auxiliary drum, said straps being unwindable from said auxiliary drum by an operator and being adapted to receive a document thereon when extended, said auxiliary straps being rewindable on said auxiliary drum to transfer said document to said retainer straps whereby said document may be loaded onto said first mentioned drum.
Claim 35
Dependent Claim
133 words
Apparatus for loading a document onto a drum of facsimile apparatus whereon said document is to be scanned or reproduced for copying, said apparatus comprising A. a drum rotatably mounted on an axis, B. a hub for said drum mounted for rotation on said axis, C. an index means releasably engageable with said hub to stop the motion thereof, D. a releasable detent for locking said hub to said drum, E. a flexible document retainer member mounted on a drum winding tray positioned tangentially to said drum, and windable about said drum having one end thereof attached to the drum and one end releasable from said drum winding tray for rotation on said drum, and F. a spring between said hub and said drum for generating torque therebetween on relative rotation thereof, whereby
Claim 36
Dependent Claim
133 words
Apparatus for loading a document onto a drum of facsimile apparatus whereon said document is to be scanned or reproduced for copying, said apparatus comprising A. a drum rotatably mounted on an axis, B. a hub for said drum mounted for rotation on said axis, C. an index means releasably engageable with said hub to stop the motion thereof, D. a releasable detent for locking said hub to said drum, E. a flexible document retainer member mounted on a drum winding tray positioned tangentially to said drum, and windable about said drum having one end thereof attached to the drum and one end releasable from said drum winding tray for rotation on said drum, and F. a spring between said hub and said drum for generating torque therebetween on relative rotation thereof, whereby
Claim 37
Dependent Claim
42 words
Apparatus as defined in claim 14 comprising unwinding means for engaging the free end of said retainer member to withdraw said free end from said drum and thereby unwind said retainer member by rotating said drum against the torque of said spring.
Claim 38
Dependent Claim
43 words
Apparatus as defined in claim 15 wherein said unwinding means comprises a member positioned in substantially tangential relationship to, and in operable contact with the drum and forming means to rotate said drum as said member is moved with respect to said drum.
Claim 39
Dependent Claim
28 words
Apparatus according to claim 16 in which said member is in frictional engagement with said drum when being moved tangentially with respect thereto, thereby to rotate said drum.
Claim 40
Dependent Claim
28 words
Apparatus according to claim 16 in which said member extends horizontally beneath said drum and provides support for said straps when said straps are unwound from said drum.
Claim 41
Dependent Claim
28 words
Apparatus according to claim 16 in which said retainer straps are resilient and have a spring bias urging them to rewind on said drum after being unwound therefrom.
Claim 42
Dependent Claim
16 words
Apparatus as defined in claim 15 wherein said retainer member comprises at least two flexible straps
Claim 43
Dependent Claim
15 words
Apparatus as defined in claim 19 wherein said retainer member comprises at least two crossbands
References Cited (Backward Citations)
US2202582A
Cited
US2638280A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-02-07 | 1975-08-09 | 1976-02-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-02-07 | 1979-08-09 | 1980-02-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-02-07 | 1983-08-09 | 1984-02-08 | $7700.00 | Window Closed / Lapsed |