Patent US3647207A successfully refreshed from Google Patents.
US3647207A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Sheet-feeding mechanism centering device
Assignee: Xerox Corp
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Filing: 1970-05-18
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Granted: 1972-03-07
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Expires: 1990-05-18
Abstract
Abstract Apparatus for reliably locating the feed rollers and paper snubbers of a copier about the centerline of sheets contained in a cassette in response to the cassette being loaded into the copier regardless of the size of the cassette so that the feeding mechanism feeds sheets as needed from the cassette to the copier in correct alignment.
Inventors
- 👤 Donald F Mcpherson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 08:11
CPC Classifications
G; G03; G03G; G03G15/00; G03G15/65; G03G15/6502
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
272 words
Apparatus for engaging sheets, or the like, in a cassette with the feeding mechanism of a copier as the cassette is being loaded into a copier so that the sheets are feedable from the cassette to the copier without misalignment comprising: first and second copier frame members which are spaced apart, the first frame adapted to guide one side of the cassette as it is being loaded into the copier, cassette support means attached to the copier between the first and second frame members having a feeding end adjacent the feeding mechanism and an open end external to the copier, the support means adapted to enable the leading portion of the cassette to slide from its open end to its feeding end, slidable bracket means to enable the feeding mechanism to move in substantially a transverse direction relative to the direction in which the sheets are advanced from the cassette to the copier, a locator plate supported for movement in substantially a parallel direction relative to the direction of movement of the feeding mechanism, connecting means for attaching the bracket means to the second frame member so as to enable the bracket means to move one unit distance for each two units of distance the locator plate moves, and biasing means for resiliently urging the bracket means toward the first frame member whereby the locator plate engages the side portion of the cassette opposed from the second frame member when the cassette is loaded into the copier so that the slidable bracket means moves the feeding mechanism to feedably engage the sheets in the cassette at about the centerline of the cassette.
Claim 2
Dependent Claim
272 words
Apparatus for engaging sheets, or the like, in a cassette with the feeding mechanism of a copier as the cassette is being loaded into a copier so that the sheets are feedable from the cassette to the copier without misalignment comprising: first and second copier frame members which are spaced apart, the first frame adapted to guide one side of the cassette as it is being loaded into the copier, cassette support means attached to the copier between the first and second frame members having a feeding end adjacent the feeding mechanism and an open end external to the copier, the support means adapted to enable the leading portion of the cassette to slide from its open end to its feeding end, slidable bracket means to enable the feeding mechanism to move in substantially a transverse direction relative to the direction in which the sheets are advanced from the cassette to the copier, a locator plate supported for movement in substantially a parallel direction relative to the direction of movement of the feeding mechanism, connecting means for attaching the bracket means to the second frame member so as to enable the bracket means to move one unit distance for each two units of distance the locator plate moves, and biasing means for resiliently urging the bracket means toward the first frame member whereby the locator plate engages the side portion of the cassette opposed from the second frame member when the cassette is loaded into the copier so that the slidable bracket means moves the feeding mechanism to feedably engage the sheets in the cassette at about the centerline of the cassette.
Claim 3
Dependent Claim
79 words
The apparatus in claim 1 wherein the connecting means between the locator plate and bracket means is a cord having one end attached to the locator plate and the other end attached to the second frame member, and further including, a pulley means attached to the bracket means adapted to feedably engage the portion of the cord between the locator plate and the second frame member whereby the bracket means moves in response to movement of the locator plate.
Claim 4
Dependent Claim
223 words
Apparatus for centering a pair of feed rollers in a copier about the centerline of sheets in the cassette, the cassette located between first and second copier frame members which are spaced apart at and one side thereof contacting the first frame member, in preparation for feeding sheets from the cassette to the copier in a path parallel to the first frame member, comprising: feed roller support means enabling the feed rollers to move perpendicular to the direction in which the sheets are fed from the cassette, and means to locate the feed rollers about the centerline of the sheets in the cassette including: i. a locator plate supported for movement in the direction parallel to the feed rollers and adapted to be positioned on the side of the cassette nearest the second frame member, ii. pulley means on the feed roller support means, and iii. a cord connected between the locator plate and the second frame member which is feedably engaged with the pulley, the length of the cord being chosen to locate the feed rollers half the distance between the first frame member and the locator plate whereby the feed rollers are located about the centerline of the cassette when the locator plate conTacts the side of the cassette nearest the second frame member regardless of the width of the cassette.
Claim 5
Dependent Claim
223 words
Apparatus for centering a pair of feed rollers in a copier about the centerline of sheets in the cassette, the cassette located between first and second copier frame members which are spaced apart at and one side thereof contacting the first frame member, in preparation for feeding sheets from the cassette to the copier in a path parallel to the first frame member, comprising: feed roller support means enabling the feed rollers to move perpendicular to the direction in which the sheets are fed from the cassette, and means to locate the feed rollers about the centerline of the sheets in the cassette including: i. a locator plate supported for movement in the direction parallel to the feed rollers and adapted to be positioned on the side of the cassette nearest the second frame member, ii. pulley means on the feed roller support means, and iii. a cord connected between the locator plate and the second frame member which is feedably engaged with the pulley, the length of the cord being chosen to locate the feed rollers half the distance between the first frame member and the locator plate whereby the feed rollers are located about the centerline of the cassette when the locator plate conTacts the side of the cassette nearest the second frame member regardless of the width of the cassette.
Claim 6
Independent Claim
113 words
An apparatus for automatically positioning a feeding mechanism of a copier relative to sheet material disposed in a cassette so as to advance properly aligned sheet material from the cassette to the copier, which comprises: means for determining the location of one side portion of the cassette, said determining means being actuated in response to the cassette being loaded into the copier; and means for moving the feeding mechanism in substantially a transverse direction relative to the direction of advancement of the sheet material from the cassette to the copier, said moving means being operated by said determining means so as to position the feeding mechanism at about the centerline of the cassette.
Claim 7
Independent Claim
113 words
An apparatus for automatically positioning a feeding mechanism of a copier relative to sheet material disposed in a cassette so as to advance properly aligned sheet material from the cassette to the copier, which comprises: means for determining the location of one side portion of the cassette, said determining means being actuated in response to the cassette being loaded into the copier; and means for moving the feeding mechanism in substantially a transverse direction relative to the direction of advancement of the sheet material from the cassette to the copier, said moving means being operated by said determining means so as to position the feeding mechanism at about the centerline of the cassette.
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) | 1975-03-07 | 1975-09-06 | 1976-03-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-03-07 | 1979-09-06 | 1980-03-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-03-07 | 1983-09-06 | 1984-03-07 | $7700.00 | Window Closed / Lapsed |