US3865017A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Machine for making file folders
Assignee: Faustel Inc
•
Filing: 1974-01-02
•
Granted: 1975-02-11
•
Expires: 1994-01-02
Abstract
Abstract A machine for making file folders having a double reinforced tab, the machine includes a conveyor for conveying file folder blanks along a longitudinal path in a step-by-step manner, a cutting and scoring die for cutting and scoring the blanks, a glue applying apparatus including a blade located at an acute angle to the direction of travel of the blanks, a folding roller for pressing the leading edge of the blank against the glue applying blade and a pneumatic glue metering system for simultaneously metering glue to the blade as the leading edge is pressed against the blade, a set of rollers for pressing the folded leading edge against the file folder blank, a cutting die for cutting the double folded leading edge to form the tab and a folding mechanism for folding the file folder.
Inventors
- 👤 William J Borski
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 02:36
CPC Classifications
B; B31; B31D; B31D1/00; B31D1/0075; Y; Y10; Y10T; Y10T156/00; Y10T156/10; Y10T156/1002; Y10T156/1051
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
115 words
A machine for forming file folders having reinforced tabs, said machine comprising: means for conveying blanks in succession along a longitudinal path, a die positioned to cut and score said blanks, folding means in the path of travel of each of said blanks for folding the lead edge against the blank to form a double ply, said folding means including means for applying glue to the folded edge of said blank as said edge of said blank is being folded, means for pressing said folded edge of said blank against the blank to form a double ply on the lead edge of said blank, and means for cutting the double ply to form a tab.
Claim 2
Dependent Claim
115 words
A machine for forming file folders having reinforced tabs, said machine comprising: means for conveying blanks in succession along a longitudinal path, a die positioned to cut and score said blanks, folding means in the path of travel of each of said blanks for folding the lead edge against the blank to form a double ply, said folding means including means for applying glue to the folded edge of said blank as said edge of said blank is being folded, means for pressing said folded edge of said blank against the blank to form a double ply on the lead edge of said blank, and means for cutting the double ply to form a tab.
Claim 3
Dependent Claim
75 words
The machine according to claim 1 wherein said glue applying means includes a blade having an edge mounted transversely to and at an acute angle to the path of travel of said blanks, said blade including a front surface having a recess, a perforate plate secured to said front surface of said blade over said recess, and means for admitting glue under pressure into said recess whereby said glue will flow through said perforate plate.
Claim 4
Dependent Claim
18 words
The machine according to claim 2 including means for metering the amount of glue fed to said recess.
Claim 5
Dependent Claim
45 words
The machine according to claim 1 wherein said folding means includes a folding roller having a flat surface positioned to pivot about the edge of said blade whereby a blank disposed between said blade and roller will be folded about the edge of said blade.
Claim 6
Independent Claim
86 words
An apparatus for folding and gluing the leading edge of a file folder blank against the blade to form a double ply, said apparatus comprising: a blade having a front surface and an edge disposed transversely to the direction of travel of the file folder blanks, means positioned to rotate about the edge of said blade to fold the leading edge of the file folder blank back against the front surface of the blade, and means for metering glue onto the front surface of the blade.
Claim 7
Independent Claim
86 words
An apparatus for folding and gluing the leading edge of a file folder blank against the blade to form a double ply, said apparatus comprising: a blade having a front surface and an edge disposed transversely to the direction of travel of the file folder blanks, means positioned to rotate about the edge of said blade to fold the leading edge of the file folder blank back against the front surface of the blade, and means for metering glue onto the front surface of the blade.
Claim 8
Dependent Claim
37 words
The apparatus according to claim 5 wherein said blade includes an elongate recess in the front surface of the blade parallel to the blade edge and a perforate plate secured to said blade and overlying said recess.
Claim 9
Dependent Claim
29 words
The apparatus according to claim 6 wherein said metering means includes a container of glue under pressure and a tube connecting said container to said recess in said blade.
Claim 10
Dependent Claim
23 words
The apparatus according to claim 7 including a pneumatic valve in said tube for controlling the pressure of the glue in said recess.
Claim 11
Dependent Claim
23 words
The apparatus according to claim 8 including a metering valve in said tube for controlling the amount of glue admitted to said recess.
References Cited (Backward Citations)
US2052623A
Cited
US2138788A
Cited
US2630046A
Cited
US3135628A
Cited
US3270629A
Cited
US3427932A
Cited
US3482489A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1978-02-10 | 1978-08-12 | 1979-02-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-02-10 | 1982-08-12 | 1983-02-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-02-10 | 1986-08-12 | 1987-02-11 | $7700.00 | Window Closed / Lapsed |