Patent US4642087A successfully refreshed from Google Patents.
US4642087A
Expired / Lapsed
US
⏱️ 0.0 years remaining
One-sided corrugated cardboard machine
Assignee: WERNER H K PETERS MASCHINENFABRIK A CORP OF GERMANY GmbH
•
Filing: 1984-10-15
•
Granted: 1987-02-10
•
Expires: 2004-10-15
Abstract
Abstract A one-sided corrugated cardboard machine comprising a machine stand, an upper and a lower fluted roller as well as a pressure roller cooperating with the lower fluted roller and pivotally supported on lever arms at the machine stand, adjustable abutment surfaces at the machine stand associated with the lever arms, and an adjusting mechanism supported at the machine stand and cooperating with the lever arms which to adjust the pressure roller nip urge the lever arms against the abutments, with the abutment surface arranged to face the pressure roller nip and limiting the movement of the lever arms away from the pressure roller nip.
Inventors
- 👤 Martin Hoffmann
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 12:00
CPC Classifications
B; B31; B31F; B31F1/00; B31F1/20; B31F1/24; B31F1/26; B31F1/28; B31F1/2845; B31F1/2863; Y; Y10; Y10T; Y10T156/00; Y10T156/10; Y10T156/1002; Y10T156/1007; Y10T156/1016
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
135 words
A one-sided corrugated cardboard machine comprising a machine stand, an upper and a lower fluted roller, a pressure roller cooperating with the lowr fluted roller, said pressure roller being pivotally supported by lever arms at the machine stand for pivotal movement toward and away from said lower fluted roller, adjustable abutment surfaces at the machine stand associated with the lever arms, an adjusting means supported at the machine stand and cooperating with the lever arms, characterized in that said adjusting means provides for adjustment of the pressure roller nip, said abutment surfaces being arranged to face the pressure roller nip and limit the pivotal movement of the lever arms only in the direction away from the lower fluted roller and permitting movement of said lever arms and said pressure roller toward said lower fluted roller.
Claim 2
Dependent Claim
135 words
A one-sided corrugated cardboard machine comprising a machine stand, an upper and a lower fluted roller, a pressure roller cooperating with the lowr fluted roller, said pressure roller being pivotally supported by lever arms at the machine stand for pivotal movement toward and away from said lower fluted roller, adjustable abutment surfaces at the machine stand associated with the lever arms, an adjusting means supported at the machine stand and cooperating with the lever arms, characterized in that said adjusting means provides for adjustment of the pressure roller nip, said abutment surfaces being arranged to face the pressure roller nip and limit the pivotal movement of the lever arms only in the direction away from the lower fluted roller and permitting movement of said lever arms and said pressure roller toward said lower fluted roller.
Claim 3
Dependent Claim
33 words
A corrugated cardboard machine according to claim 1, characterized in that the lever arms lie in close contact against the abutment surface under its own weight and the weight of the pressure roller.
Claim 4
Dependent Claim
34 words
A corrugated cardboard machine according to claim 1, characterized in that the abutment surface is formed by wedges arranged in common on a shaft of adjustment and cooperating with oblique surfaces of the levers.
Claim 5
Dependent Claim
33 words
A corrugated cardboard machine according to claim 2, characterized in that the abutments are formed by wedges arranged in common on a shaft of adjustment and cooperating with oblique surfaces of the levers.
Claim 6
Dependent Claim
35 words
A corrugated cardboard machine according to claim 3, further including indicator means for indicating the angular position of the shaft of adjustment and accordingly the distance between the pressure roller and the lower fluted roller.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1990-02-09 | 1990-08-11 | 1991-02-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1994-02-09 | 1994-08-11 | 1995-02-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1998-02-09 | 1998-08-11 | 1999-02-10 | $7700.00 | Window Closed / Lapsed |