US4334764A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Sheet feeding apparatus
Assignee: Individual
•
Filing: 1980-04-29
•
Granted: 1982-06-15
•
Expires: 2000-04-29
Abstract
Abstract Apparatus for automatically feeding sheet material such as fan fold paper to a photocopier in which the apparatus may be movable towards and away from the window of the photocopier either by disconnecting the apparatus completely from the photocopier by means of readily releasable clamps or by pivoting part of the apparatus away from the window of the photocopier whereby the apparatus may be used not only to photocopy fan fold paper but used in a conventional manner to photocopy normal documents. Control signals to operate the apparatus are derived by a light sensitive means viewing the light source within the photocopier through the window of the photocopier.
Inventors
- 👤 Lionel E. J. Rawson
- 👤 John Wray
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 19:07
CPC Classifications
G; G03; G03G; G03G15/00; G03G15/60; G03G15/602; G03B; G03B27/00; G03B27/32; G03B27/52; G03B27/62; G03B27/6207; G03B27/625; G03B27/6264
Claims Analysis
Total Claims: 19
Claim 1
Independent Claim
87 words
Apparatus for automatically feeding sheet material to a photocopier for reproduction comprising means for removably connecting the apparatus to a photocopier, means for feeding the sheet material, said feeding means being adapted to feed said sheet material discontinuously so that whilst the sheet material is stationary it may be reproduced, and signal receiving means for receiving signals from the photocopier for controlling operation of the feeding means, said signal receiving means comprising a light sensitive means adapted to receive light from a light source within the photocopier.
Claim 2
Dependent Claim
87 words
Apparatus for automatically feeding sheet material to a photocopier for reproduction comprising means for removably connecting the apparatus to a photocopier, means for feeding the sheet material, said feeding means being adapted to feed said sheet material discontinuously so that whilst the sheet material is stationary it may be reproduced, and signal receiving means for receiving signals from the photocopier for controlling operation of the feeding means, said signal receiving means comprising a light sensitive means adapted to receive light from a light source within the photocopier.
Claim 3
Dependent Claim
43 words
Apparatus as claimed in claim 1 comprising means by which at least part of the apparatus may be readily moved away from a window of the photocopier whereby the photocopier may be utilized to photocopy conventional documents without the use of the apparatus.
Claim 4
Dependent Claim
35 words
Apparatus as claimed in claim 2 in which said means to move at least part of the apparatus away from the window comprises releasable clamp means whereby the apparatus may be removed from the photocopier.
Claim 5
Dependent Claim
41 words
Apparatus as claimed in claim 2 in which the means to move at least part of the apparatus away from the window comprises pivot means whereby the part of the apparatus overlying the window can be pivoted away from the window.
Claim 6
Dependent Claim
43 words
Apparatus as claimed in claim 4 in which the part of the apparatus overlying the window comprises a platen pivotally attached to the remainder of the apparatus, the platen including on its top surface means for mounting a supply of the sheet material.
Claim 7
Dependent Claim
32 words
Apparatus as claimed in claim 1 in which the means for feeding the sheet material comprises tooth rollers which are driven so as to rotate by one complete revolution and then stop.
Claim 8
Dependent Claim
83 words
Apparatus for automatically feeding sheet material to a photocopier for reproduction comprising means for removably connecting the apparatus to a photocopier, means for feeding the sheet material, said feeding means comprising tooth rollers which are driven so as to rotate by one complete revolution and then stop whereby to feed said sheet material discontinuously so that whilst the sheet material is stationary it may be reproduced, and signal receiving means for receiving signals from the photocopier for controlling operation of the feeding means.
Claim 9
Dependent Claim
83 words
Apparatus for automatically feeding sheet material to a photocopier for reproduction comprising means for removably connecting the apparatus to a photocopier, means for feeding the sheet material, said feeding means comprising tooth rollers which are driven so as to rotate by one complete revolution and then stop whereby to feed said sheet material discontinuously so that whilst the sheet material is stationary it may be reproduced, and signal receiving means for receiving signals from the photocopier for controlling operation of the feeding means.
Claim 10
Dependent Claim
34 words
Apparatus as claimed in claim 1 comprising delay means for delaying the feed of the sheet material so that a particular portion of the sheet material may be reproduced a predetermined number of times.
Claim 11
Dependent Claim
16 words
Apparatus as claimed in claim 8 in which the delay means is controlled by a counter.
Claim 12
Dependent Claim
61 words
Apparatus as claimed in claim 7 in which the signal receiving means comprises a light sensitive means adapted to receive light from a light source within the photocopier and in which the means to feed the sheet material includes control means to feed the sheet material only when the light sensitive means receives light from the light source within the photocopier.
Claim 13
Dependent Claim
105 words
Apparatus for automatically feeding sheet material comprising means for feeding sheet material discontinuously so that whilst the sheet material is stationary it can be reproduced, means for receiving signals from a photocopier comprising a light sensitive means adapted to receive light from a light source within the photocopier to control operation of the feeding means, and means for connecting the apparatus to the photocopier whereby at least part of the apparatus is movable towards and away from a window of the photocopier, whereby when moved away from the window of the photocopier, the photocopier may be utilized in a conventional manner to photocopy other documents.
Claim 14
Dependent Claim
105 words
Apparatus for automatically feeding sheet material comprising means for feeding sheet material discontinuously so that whilst the sheet material is stationary it can be reproduced, means for receiving signals from a photocopier comprising a light sensitive means adapted to receive light from a light source within the photocopier to control operation of the feeding means, and means for connecting the apparatus to the photocopier whereby at least part of the apparatus is movable towards and away from a window of the photocopier, whereby when moved away from the window of the photocopier, the photocopier may be utilized in a conventional manner to photocopy other documents.
Claim 15
Dependent Claim
41 words
Apparatus as claimed in claim 11 in which the means to move at least part of the apparatus away from the window comprises pivot means whereby the part of the apparatus overlying the window can be pivoted away from the window.
Claim 16
Dependent Claim
43 words
Apparatus as claimed in claim 12 in which the part of the apparatus overlying the window comprises a platen pivotally attached to the remainder of the apparatus, the platen including on its top surface means for mounting a supply of the sheet material.
Claim 17
Dependent Claim
38 words
Apparatus as claimed in claim 11 in which the means to feed the sheet material includes control means to feed the sheet material only when the light sensitive means receives light from the light source within the photocopier.
Claim 18
Dependent Claim
34 words
Apparatus as claimed in claim 14 comprising delay means for delaying the feed of the sheet material so that a particular portion of the sheet material may be reproduced a predetermined number of times.
Claim 19
Dependent Claim
16 words
Apparatus as claimed in claim 15 in which the delay means is controlled by a counter.
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Cited
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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) | 1985-06-14 | 1985-12-14 | 1986-06-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1989-06-14 | 1989-12-14 | 1990-06-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1993-06-14 | 1993-12-14 | 1994-06-15 | $7700.00 | Window Closed / Lapsed |