US3716178A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Web guiding and corner folding apparatus
Assignee: COPLEY PRESS Inc
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Filing: 1971-12-09
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Granted: 1973-02-13
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Expires: 1991-12-09
Abstract
Abstract Apparatus for guiding a moving web of material, such as paper, film, or the like, and folding the corners of the leading edge of the moving web to stiffen the leading portion and facilitate automatic feeding through processing means. Folding is accomplished by a guide plate having shaped apertures into which the leading corners of the web are guided as the web advances. With the corners retarded in the apertures, continued motion of the web causes the corners to be folded back. The folding action is assisted by deflection of the web by moving the guide plate.
Inventors
- 👤 L Shimmin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 09:04
CPC Classifications
G; G03; G03D; G03D13/00; G03D13/003; Y; Y10; Y10S; Y10S271/00; Y10S271/902
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
87 words
Web guiding and corner folding apparatus, comprising, a web guiding track having enclosing walls including a web supPorting wall, drive means for moving a strip of web material along said track, a guide plate inset in the web supporting wall of said track, said guide plate having trap slots therein spaced to receive the web strip therebetween, and said trap slots having stop edges for intercepting the leading edge corners of a web strip and folding the corners inwardly as the web strip moves past the slots.
Claim 2
Dependent Claim
87 words
Web guiding and corner folding apparatus, comprising, a web guiding track having enclosing walls including a web supPorting wall, drive means for moving a strip of web material along said track, a guide plate inset in the web supporting wall of said track, said guide plate having trap slots therein spaced to receive the web strip therebetween, and said trap slots having stop edges for intercepting the leading edge corners of a web strip and folding the corners inwardly as the web strip moves past the slots.
Claim 3
Dependent Claim
87 words
Web guiding and corner folding apparatus, comprising, a web guiding track having enclosing walls including a web supPorting wall, drive means for moving a strip of web material along said track, a guide plate inset in the web supporting wall of said track, said guide plate having trap slots therein spaced to receive the web strip therebetween, and said trap slots having stop edges for intercepting the leading edge corners of a web strip and folding the corners inwardly as the web strip moves past the slots.
Claim 4
Dependent Claim
87 words
Web guiding and corner folding apparatus, comprising, a web guiding track having enclosing walls including a web supPorting wall, drive means for moving a strip of web material along said track, a guide plate inset in the web supporting wall of said track, said guide plate having trap slots therein spaced to receive the web strip therebetween, and said trap slots having stop edges for intercepting the leading edge corners of a web strip and folding the corners inwardly as the web strip moves past the slots.
Claim 5
Dependent Claim
21 words
Apparatus according to claim 1, wherein said stop edges are inclined and converge in the direction of motion of the web.
Claim 6
Dependent Claim
19 words
Apparatus according to claim 2, wherein said stop edges are raised above the web supporting surface of said track.
Claim 7
Dependent Claim
19 words
Apparatus according to claim 3, wherein said trap slots have downwardly turned entry edges opposite the respective stop edges.
Claim 8
Dependent Claim
72 words
Apparatus according to claim 1, wherein said track has a branching portion diverging from the side opposite said web supporting wall and having an exit lip at the junction thereof, said guide plate being pivotally mounted in said track to swing between a position coplanar with said web supporting wall and a position in planar alignment with said exit lip, and actuating means for moving said guide plate between the two positions.
Claim 9
Dependent Claim
51 words
Apparatus according to claim 5, and including a sensing means for sensing the passage of the end of a web strip adjacent said guide plate, said sensing means being connected to operate said actuating means for moving the guide plate and diverting the web into said branching portion of the tack.
Claim 10
Dependent Claim
43 words
Apparatus according to claim 6, and including driven roller means mounted on said track for engagement with the web strip, said roller means being connected to said sensing means to drive the web into said branching portion when said guide plate is deflected.
Claim 11
Dependent Claim
25 words
Apparatus according to claim 5, wherein the stop edges of said trap slots are inclined and converge in the direction of motion of the web.
Claim 12
Dependent Claim
41 words
Apparatus according to claim 8, wherein said stop edges are bowed upwardly above the web supporting surface of said guide plate. 10. Apparatus according to claim 9, wherein said trap slots have downwardly turned entry edges opposite the respective stop edges.
References Cited (Backward Citations)
US2899198A
Cited
US3204949A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-02-13 | 1976-08-14 | 1977-02-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-02-13 | 1980-08-14 | 1981-02-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-02-13 | 1984-08-14 | 1985-02-13 | $7700.00 | Window Closed / Lapsed |