US3820700A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Paper stacker
Assignee: US Philips Corp
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Filing: 1973-04-23
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Granted: 1974-06-28
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Expires: 1993-04-23
Abstract
Abstract A paper stacker for prefolded paper, comprising a paper collecting device and a paper feed device which is arranged thereabove and which comprises a rigidly arranged drivable first shaft which is coupled to a second shaft which is capable of performing a swinging movement with respect to the first shaft. At least the second shaft is provided with two paper tractors, the second shaft being connected via at least one arm to a third shaft which is coupled to the second shaft and which is provided with at least one gearwheel which can roll down along a toothed rack path which consists of two parallel toothed racks which are connected by two semi-circular gear rings.
Inventors
- 👤 M Quirijnen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 17:55
CPC Classifications
B; B41; B41J; B41J11/00; B41J11/26; B41J11/30; B65; B65H; B65H45/00; B65H45/02; B65H45/06; B65H45/10; B65H45/101; B65H45/1015; B65H2701/00; B65H2701/10; B65H2701/11; B65H2701/112; B65H2701/1123; B65H2701/11231
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
143 words
A paper stacker for prefolded paper, comprising a paper collecting device and a paper feed device which is arranged thereabove and which comprises a rigidly arranged drivable first shaft which is coupled to a second shaft which is capable of performing a swinging movement with respect to the first shaft, at least the second shaft being provided with at least two paper tractors which are provided with pins which engage in a perforation track provided in the paper, characterized in that the second shaft is connected, via at least one lever, to a third shaft which is coupled to the second shaft and which is provided with at least one gearwheel which can roll down along a toothed rack path consisting of two parallel toothed racks which are connected by two semi-circular gear rings, the distance between the semi-circular gear rings being adjustable.
Claim 2
Dependent Claim
143 words
A paper stacker for prefolded paper, comprising a paper collecting device and a paper feed device which is arranged thereabove and which comprises a rigidly arranged drivable first shaft which is coupled to a second shaft which is capable of performing a swinging movement with respect to the first shaft, at least the second shaft being provided with at least two paper tractors which are provided with pins which engage in a perforation track provided in the paper, characterized in that the second shaft is connected, via at least one lever, to a third shaft which is coupled to the second shaft and which is provided with at least one gearwheel which can roll down along a toothed rack path consisting of two parallel toothed racks which are connected by two semi-circular gear rings, the distance between the semi-circular gear rings being adjustable.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-06-27 | 1977-12-27 | 1978-06-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-06-27 | 1981-12-27 | 1982-06-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-06-27 | 1985-12-27 | 1986-06-28 | $7700.00 | Window Closed / Lapsed |