US3866254A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Machine for perforating and for binding sheets into a plastic ring folder
Assignee: Individual
•
Filing: 1973-10-03
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Granted: 1975-02-18
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Expires: 1993-10-03
Abstract
Abstract A machine for perforating sheets and for enabling binding of the perforated sheets into a folder having a plastic binding ring is structured with a perforation mechanism including a plurality of punch elements which are raised and lowered for perforating the sheets and a flexing assembly including a plurality of displaceable arm members adapted to engage the plastic ring to enable flexing thereof to a position where the perforated sheets may be placed in binding engagement therewith. The invention particularly relates to the combination of an eccentric cam adapted to engage the perforating mechanism to effect actuation of the punch elements and a helical cam which engages the flexing assembly to effect actuation of the arms whereby the ring may be flexed to a position enabling insertion of the sheets in binding engagement therewith.
Inventors
- 👤 Delso Gronda
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 11:35
CPC Classifications
B; B42; B42B; B42B5/00; B42B5/08; B42B5/10; B42B5/103; Y; Y10; Y10T; Y10T83/00; Y10T83/748; Y10T83/7593; Y10T83/7647; Y10T83/7653; Y10T83/766; Y10T83/869; Y10T83/8821; Y10T83/8828; Y10T83/8831; Y10T83/8834
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
246 words
A machine for perforating sheets and for enabling binding of said perforated sheets into a folder by engagement with a flexible plastic binding ring, said machine comprising, in combination: perforation means including a plurality of punching elements for perforating said sheets, a longitudinal bar, slots defined at regular intervals along a lower face of said longitudinal bar, heads defined upon said punching elements and located to extend within said slots, a guide element for said punching elements arranged beneath said longitudinal bar, side guides for directing parallel displacement of said longitudinal bar, an eccentric cam, means mounting said eccentric cam above said longitudinal bar in a position for engagement therewith, a first lever for operating said eccentric cam, and a bridge element arranged above said longitudinal bar in fixed relationship therewith in a position to be contacted by said eccentric cam during operation thereof to enable raising of said punching elements, said eccentric cam having a cam profile adapted to engage said longitudinal bar and said bridge element to directly apply thereto by operation of said first lever forces to effect positive raising and lowering of said punching elements during perforation of said sheets; flexing means including a plurality of displaceable arm members adapted to engage said plastic ring to enable flexing thereof to a position where said perforated sheets may be placed in binding engagement therewith; and a helical cam engaging said flexing means to effect engagement and flexing of said ring by said arm.
Claim 2
Dependent Claim
246 words
A machine for perforating sheets and for enabling binding of said perforated sheets into a folder by engagement with a flexible plastic binding ring, said machine comprising, in combination: perforation means including a plurality of punching elements for perforating said sheets, a longitudinal bar, slots defined at regular intervals along a lower face of said longitudinal bar, heads defined upon said punching elements and located to extend within said slots, a guide element for said punching elements arranged beneath said longitudinal bar, side guides for directing parallel displacement of said longitudinal bar, an eccentric cam, means mounting said eccentric cam above said longitudinal bar in a position for engagement therewith, a first lever for operating said eccentric cam, and a bridge element arranged above said longitudinal bar in fixed relationship therewith in a position to be contacted by said eccentric cam during operation thereof to enable raising of said punching elements, said eccentric cam having a cam profile adapted to engage said longitudinal bar and said bridge element to directly apply thereto by operation of said first lever forces to effect positive raising and lowering of said punching elements during perforation of said sheets; flexing means including a plurality of displaceable arm members adapted to engage said plastic ring to enable flexing thereof to a position where said perforated sheets may be placed in binding engagement therewith; and a helical cam engaging said flexing means to effect engagement and flexing of said ring by said arm.
Claim 3
Dependent Claim
29 words
A machine according to claim 1 wherein said cam profile is shaped to enable application of a progressively increasing force to said punching elements during perforation of said sheets.
Claim 4
Dependent Claim
37 words
A machine according to claim 1, including spring means located for engagement between said longitudinal bar and said machine, said spring means being positioned to insure parallel movement of said bar during actuation of said punching elements.
Claim 5
Dependent Claim
223 words
A machine according to claim 1, wherein said flexing means includes a plate mounted upon an upper portion of said machine, a plurality of slits defined through said plate in side by side relationship, each having a generally longitudinal configuration extending from front to rear relative to said machine, a widened portion of said slits located adjacent the forward side of said machine, a comb-Like element including a plurality of teeth, said teeth extending perpendicularly relative to the plane of said plate adjacent the frontal side thereof, a guide bar extending longitudinally across said machine interiorly thereof along a side of said plate, rod-shaped guides guiding said longitudinal bar for movement forwardly and rearwardly of said machine, an L-shaped plate interposed between said plate and said guide bar, said displaceable arm members being arranged to extend from said L-shaped plate through said slits, slots on said L-shaped plate, a fastening element formed integrally with said guide bar and extending through said slots in a manner to enable longitudinal sliding movement of said plate relative to said guide bar, a stud extending downwardly from said L-shaped plate at the mid-section thereof, a helical groove defined upon the surface of said helical cam, said stud being arranged for actuating engagement with said helical groove, and a second lever for enabling actuation of said helical cam.
Claim 6
Dependent Claim
87 words
A machine according to claim 1, including means for positioning sheets to be perforated by said machine to determine the distance from the borders of said sheets at which said perforations are to be formed, said sheet positioning means including a rod extending longitudinally from side to side of said machine beneath said guide elements and having at its extremities a pair of arms extending perpendicularly from said rod and terminating in a forked configuration, and cupped cam means located in operative engagement with said forked elements.
Claim 7
Dependent Claim
53 words
A machine according to claim 5, including a pair of said cupped cams, an adjusting shaft having said cupped cams mounted at opposite ends thereof, said adjustment shaft being arranged eccentrically of said cams, and means located exteriorly of said machine for enabling rotation of said adjustment shaft to actuate said cupped cams.
Claim 8
Dependent Claim
38 words
A machine according to claim 6, wherein rotation of said adjusting shaft operates to actuate said cupped cams in a manner whereby said longitudinal rod may be moved to a desired location frontwardly or rearwardly of said machine.
Claim 9
Dependent Claim
20 words
A machine according to claim 1, including means for supporting and positioning upon said machine sheets to be perforated thereby.
Claim 10
Dependent Claim
106 words
A machine according to claim 8, wherein said sheet supporting and positioning means comprise a horizontal platform, a vertical ledge formed on one side of said horizontal platform, a longitudinally extending cylindrical cavity formed along a border of said horizontal platform, a shaft rotatably associated with said cylindrical cavity, a flange operatively associated with said horizontal platform and extending from the side of said cylindrical cavity opposite said horizontal platform, and adhesive means operatively associated between said flange means and said machine to releasably secure said supporting and positioning means in operative relationship relative to said machine to support and guide a sheet to be perforated.
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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) | 1978-02-17 | 1978-08-19 | 1979-02-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-02-17 | 1982-08-19 | 1983-02-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-02-17 | 1986-08-19 | 1987-02-18 | $7700.00 | Window Closed / Lapsed |