US3648913A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Noiseless paperboard guide
Assignee: Harris Corp
•
Filing: 1970-09-10
•
Granted: 1972-03-14
•
Expires: 1990-09-10
Abstract
Abstract A paperboard guide on the bridge between the single-facer and double-facer guides and tensions paperboard having a liner side and a fluted side. The fluted side of the paperboard contacts idler rollers while the liner side contacts a curved surface which may be stationary or rotatable. At least one of the rollers may be movable for the purpose of changing the amount of surface contact between the liner side of the paperboard and the curved surface to increase the tension.
Inventors
- 👤 James T Ferara
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 10:55
CPC Classifications
B; B32; B32B; B32B29/00; B32B29/08; B31; B31F; B31F1/00; B31F1/20; B31F1/24; B31F1/26; B31F1/28; B65; B65H; B65H23/00; B65H23/04; B65H23/26
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
80 words
A method of reducing the noise of the bridge between a single-facer machine and a double-facer machine comprising guiding and tensioning paperboard having a liner side and a fluted side, performing said guiding and tensioning step at the bridge, and reducing the noise associated with said guiding and tensioning step, said step of reducing noise including contacting the fluted side of the paperboard with spaced idler rollers and contacting the liner side with a curved surface between said idler rollers.
Claim 2
Independent Claim
80 words
A method of reducing the noise of the bridge between a single-facer machine and a double-facer machine comprising guiding and tensioning paperboard having a liner side and a fluted side, performing said guiding and tensioning step at the bridge, and reducing the noise associated with said guiding and tensioning step, said step of reducing noise including contacting the fluted side of the paperboard with spaced idler rollers and contacting the liner side with a curved surface between said idler rollers.
Claim 3
Dependent Claim
37 words
A method in accordance with claim 1 including the step of moving the location of the downstream idler roller to change the amount of surface contact between said curved surface and the liner side of the paperboard.
Claim 4
Dependent Claim
50 words
A method in accordance with claim 1 including extending single-faced board upwardly from a bridge conveyor around an upstream idler, then extending the single-faced paperboard downwardly along the curved surface and then upwardly around the downstream idler roller with the flutes being on the lower surface of the single-faced paperboard.
Claim 5
Dependent Claim
18 words
A method in accordance with claim 1 including the step of using a curved surface which is stationary.
Claim 6
Dependent Claim
40 words
A method in accordance with claim 1 including using a curved surface which is a cylinder substantially larger in diameter than said idler rollers, and contacting said cylinder with the liner side of the paperboard with approximately 180* of contact.
Claim 7
Dependent Claim
114 words
Apparatus comprising a bridge adapted to be disposed between a single-facer machine and a double-facer machine, said bridge including a conveyor on which single-faced paperboard may accumulate in the form of loops, said bridge including a paperboard guide for guiding and tensioning single-faced paperboard to be fed to the double-facer machine, said guide including means for contact with opposite sides of single-faced paperboard and reducing noise due to frictional contact therewith, said means including an upstream freely rotatable idler roller and a downstream freely rotatable idler roller for contact with the fluted side of single-faced paperboard and a curved guide surface between said idler rollers for contact with the liner side of single-faced paperboard.
Claim 8
Dependent Claim
114 words
Apparatus comprising a bridge adapted to be disposed between a single-facer machine and a double-facer machine, said bridge including a conveyor on which single-faced paperboard may accumulate in the form of loops, said bridge including a paperboard guide for guiding and tensioning single-faced paperboard to be fed to the double-facer machine, said guide including means for contact with opposite sides of single-faced paperboard and reducing noise due to frictional contact therewith, said means including an upstream freely rotatable idler roller and a downstream freely rotatable idler roller for contact with the fluted side of single-faced paperboard and a curved guide surface between said idler rollers for contact with the liner side of single-faced paperboard.
Claim 9
Dependent Claim
37 words
Apparatus in accordance with claim 6 including means for moving the position of the downstream idler roller relative to the curved surface to change the amount of frictional contact between the liner side and the curved surface.
Claim 10
Dependent Claim
29 words
Apparatus in accordance with claim 6 wherein said curved surface is stationary and has a radius of curvature whiCh is substantially greater than the radius of said idler rollers.
Claim 11
Dependent Claim
29 words
Apparatus in accordance with claim 6 wherein said downstream idler roller is mounted for movement through an arcuate path generally transverse to the direction of travel of the paperboard.
Claim 12
Dependent Claim
35 words
Apparatus in accordance with claim 6 wherein said idler rollers are mounted on stationary axes positioned above said cylinder so that the paperboard travels downwardly from the upstream roller and upwardly to the downstream roller.
References Cited (Backward Citations)
US3282764A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-03-14 | 1975-09-13 | 1976-03-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-03-14 | 1979-09-13 | 1980-03-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-03-14 | 1983-09-13 | 1984-03-14 | $7700.00 | Window Closed / Lapsed |