US3966059A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Paper feeding apparatus for an automatic plane type paper punching machine
Assignee: Individual
•
Filing: 1974-10-03
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Granted: 1976-06-29
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Expires: 1994-10-03
Abstract
Abstract A paper feeding apparatus for an automatic plane type paper punching machine comprising a punching unit to punch stacked sheets of paper so as to obtain a predetermined shape and size of said stacked sheets of paper and a paper catcher to receive from said paper feeding apparatus and to catch and deliver to said punching unit said stacked sheets of paper to be punched, said paper feeding apparatus comprising a base to mount thereon a stack of sheets paper; separator means to separate predetermined sheets of paper from said stack; and means to clamp and carry said separated sheets of paper from the remaining stack to said paper catcher. Separator means includes an arm member movable back and forth relative to said stack and a pawl member mounted on said arm member at one end to be inserted into the layers of said stack at a first level and to raise up said predetermined sheets of paper to a second level. Clamping and carrying means includes a clamper movable back and forth relative to said stack to clamp said separated sheets of paper.
Inventors
- 👤 Eizo Sase
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 19:45
CPC Classifications
B; B65; B65H; B65H5/00
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
197 words
A paper feeding apparatus for an automatic plane type paper punching machine comprising a punching unit to punch stacked sheets of paper so as to obtain a predetermined shape and size of said stacked sheets of paper and a paper catcher to receive from said paper feeding apparatus and catch and deliver to said punching unit said stacked sheets of paper to be punched, said paper feeding apparatus comprising a base to mount thereon a stack of sheets of paper; separator means to separate predetermined sheets of paper from said stack, said separator means including an arm member movable back and forth relative to said stack and a pawl member means mounted on said arm member at one end thereof to be inserted into the layers of said stack at a first level means mounted on the separator and operatively associated with a fixed means for rising said predetermined sheets of paper to a second level; means to clamp and carry said separated sheets of paper from the remaining stack to said paper catcher, said clamping and carrying means including a clamper movable back and forth relative to said stack to clamp said separated sheets of paper.
Claim 2
Dependent Claim
197 words
A paper feeding apparatus for an automatic plane type paper punching machine comprising a punching unit to punch stacked sheets of paper so as to obtain a predetermined shape and size of said stacked sheets of paper and a paper catcher to receive from said paper feeding apparatus and catch and deliver to said punching unit said stacked sheets of paper to be punched, said paper feeding apparatus comprising a base to mount thereon a stack of sheets of paper; separator means to separate predetermined sheets of paper from said stack, said separator means including an arm member movable back and forth relative to said stack and a pawl member means mounted on said arm member at one end thereof to be inserted into the layers of said stack at a first level means mounted on the separator and operatively associated with a fixed means for rising said predetermined sheets of paper to a second level; means to clamp and carry said separated sheets of paper from the remaining stack to said paper catcher, said clamping and carrying means including a clamper movable back and forth relative to said stack to clamp said separated sheets of paper.
Claim 3
Dependent Claim
48 words
A paper feeding apparatus as set forth in claim 1, wherein said separator means further comprises a projecting portion provided on said arm member in a facing relation to said pawl member whereby said separated sheets of paper are held between said projecting portion and said pawl member.
Claim 4
Dependent Claim
36 words
A paper feeding apparatus as set forth in claim 1, wherein said arm member is mounted on lever means pivotally movable about an axis, said lever means operatively associated with a cam rotatable about an axis.
Claim 5
Dependent Claim
64 words
A paper feeding apparatus as set forth in claim 3, wherein said means mounted on said separator comprises an extension integral with said arm member and provided with a roller at the end of said extension and said fixed means comprises a cam positioned to engage said roller when said arm member advances relative to said stack whereby said arm member is raised up.
Claim 6
Dependent Claim
60 words
A paper feeding apparatus as set forth in claim 1, wherein said clamper comprises a stationary jaw and a movable jaw resiliently urged away from said stationary jaw and said clamper including a pusher engaging said movable jaw when said clamper advances relative to said stack to close said clamper with said separated sheets of paper held between said jaws.
Claim 7
Dependent Claim
26 words
A paper feeding apparatus as set forth in claim 5, and said pusher comprising a pushing head integral with a rod movable in an axial direction.
Claim 8
Dependent Claim
35 words
A paper feeding apparatus as set forth in claim 1, wherein said clamper is mounted on lever means pivotally movable about an axis, said lever means operatively associated with a cam rotatable about an axis.
Claim 9
Dependent Claim
44 words
A paper feeding apparatus as set forth in claim 3, wherein said arm member is pivotable relative to said lever means at the connection between said arm member and said lever means whereby said pawl member is inserted into said stack at variable level.
References Cited (Backward Citations)
US3327873A
Cited
US3690476A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1979-06-29 | 1979-12-29 | 1980-06-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-06-29 | 1983-12-29 | 1984-06-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-06-29 | 1987-12-29 | 1988-06-29 | $7700.00 | Window Closed / Lapsed |