Patent US3647204A successfully refreshed from Google Patents.
US3647204A
Expired / Lapsed
US
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Paper sheet feed device
Assignee: Canon Inc
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Filing: 1970-01-20
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Granted: 1972-03-07
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Expires: 1990-01-20
Abstract
Abstract Paper sheet feed device includes a plurality of paper sheet feed means disposed such that each means can feed paper sheets having a predetermined size. When paper sheets are supplemented or replaced by the sheets of other size, the paper feed means is moved from its operative position to nonoperative position, but the paper sheets have been supplemented or replaced, the paper sheet feed means is automatically returned to its operative position with the aid of pawl members and ladder chain cooperating with feed means.
Inventors
- 👤 Jiro Sato
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 17:26
CPC Classifications
G; G03; G03G; G03G15/00; G03G15/65; G03G15/6502; B; B65; B65H; B65H3/00; B65H3/02; B65H3/06; B65H3/0669; G03B; G03B27/00; G03B27/32; G03B27/52; G03B27/58; G03B27/585; G03B27/586
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
154 words
A paper sheet feed device comprising: a. support means for supporting a stack of paper sheets, b. drive means fixedly mounted in said sheet device for supplying a drive force, c. paper sheet feed means, d. means for pivotally mounting said paper sheet feed means with respect to said drive means for movement between a first position at said support means for feeding paper sheets and a second position remote from said support means permitting change or addition to said stack of paper sheets, e. transmitting means for transmitting said drive force from said drive means to said paper sheet feed means, and f. holding means at said second position for holding said transmitting means and opposing said drive force to induce in said transmitting means a rotating force in said paper sheet feed means and pivot said paper sheet feed means about said drive means to said first position at said support means.
Claim 2
Dependent Claim
154 words
A paper sheet feed device comprising: a. support means for supporting a stack of paper sheets, b. drive means fixedly mounted in said sheet device for supplying a drive force, c. paper sheet feed means, d. means for pivotally mounting said paper sheet feed means with respect to said drive means for movement between a first position at said support means for feeding paper sheets and a second position remote from said support means permitting change or addition to said stack of paper sheets, e. transmitting means for transmitting said drive force from said drive means to said paper sheet feed means, and f. holding means at said second position for holding said transmitting means and opposing said drive force to induce in said transmitting means a rotating force in said paper sheet feed means and pivot said paper sheet feed means about said drive means to said first position at said support means.
Claim 3
Dependent Claim
41 words
A paper sheet feed device as in claim 1, wherein said paper sheet feed means includes feed rollers mounted on a common rotatable shaft and wherein said transmitting means transmits said drive force from said drive means to said rotating shaft.
Claim 4
Dependent Claim
67 words
A paper sheet feed device as in claim 2, wherein a first sprocket wheel is coupled to said drive means and a second sprocket wheel is mounted for rotation about said common shaft, and wherein said transmitting means includes a ladder chain carried by said first and second sprocket wheels and wherein said holding means includes a detent member engaging said ladder chain at said second position.
Claim 5
Dependent Claim
70 words
A paper sheet feed device as in claim 2, wherein a first belt-driving means is provided on said common shaft and a second belt-driving means is provided on said drive means, and wherein said transmitting means includes a belt carried by said first and second belt-driving means, said belt having a plurality of recesses, and said holding means including means for engaging one of said recesses at said second position.
Claim 6
Dependent Claim
160 words
A paper sheet feed device comprising means for supporting a stack of paper sheets, adjustable guide plate means disposed on said supporting means and adjustable to engage the sides of paper sheets of at least first and second widths, a plurality of feed rollers carried by a common shaft and in spaced-apart relation with each other for feeding paper sheets from said stack of paper sheets, some of said plurality of feed rollers being disposed to feed only said paper sheets of said first width and said some of said plurality of feed rollers together with other of said plurality of feed rollers being disposed to feed said paper sheets of said second width, means for mounting said plurality of feed rollers to be selectively switched between a first position for feeding paper sheets and a second position moved away from said first position, and means for driving said plurality of feed rollers to feed paper sheets from said stack.
Claim 7
Dependent Claim
160 words
A paper sheet feed device comprising means for supporting a stack of paper sheets, adjustable guide plate means disposed on said supporting means and adjustable to engage the sides of paper sheets of at least first and second widths, a plurality of feed rollers carried by a common shaft and in spaced-apart relation with each other for feeding paper sheets from said stack of paper sheets, some of said plurality of feed rollers being disposed to feed only said paper sheets of said first width and said some of said plurality of feed rollers together with other of said plurality of feed rollers being disposed to feed said paper sheets of said second width, means for mounting said plurality of feed rollers to be selectively switched between a first position for feeding paper sheets and a second position moved away from said first position, and means for driving said plurality of feed rollers to feed paper sheets from said stack.
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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) | 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 |