US3716227A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Sheet conveying device
Assignee: Sächsisches Institut für die Druckindustrie
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Filing: 1971-02-08
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Granted: 1973-02-13
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Expires: 1991-02-08
Abstract
Abstract Control system for the conveying of sheets, comprising sheet conveying means defining a sheet conveying path, means in the sheet conveying path for stopping and releasing the sheets with a predetermined periodicity and means for equalizing the distance between consecutive sheets subsequent to the release of the sheets from the sheet stopping and releasing means.
Inventors
- 👤 R Bottcher
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 18:18
CPC Classifications
B; B65; B65H; B65H9/00; B65H9/14; B65H5/00; B65H7/00; B65H7/02; B65H7/06
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
144 words
Control system for transporting consecutive sheets to a subsequent sheet receiving means, such subsequent means being timed for receiving the consecutive sheets with a predetermined periodicity, comprising sheet conveying means defining a sheet conveying path, means spaced from and, when operative, extending into and out of the sheet conveying path at the upstream end thereof for inItially stopping and then releasing the sheets to travel along the path, said stopping and releasing means including means for timing the stopping and releasing of sheets with a predetermined periodicity corresponding to the predetermined periodicity of the subsequent sheet receiving means and means downstream of said stopping and releasing means traveling, when operating, in the conveying path and parallel to said conveying means and having means for receiving and equally spacing the leading and trailing edges of consecutive sheets released from the sheet stopping and releasing means.
Claim 2
Dependent Claim
144 words
Control system for transporting consecutive sheets to a subsequent sheet receiving means, such subsequent means being timed for receiving the consecutive sheets with a predetermined periodicity, comprising sheet conveying means defining a sheet conveying path, means spaced from and, when operative, extending into and out of the sheet conveying path at the upstream end thereof for inItially stopping and then releasing the sheets to travel along the path, said stopping and releasing means including means for timing the stopping and releasing of sheets with a predetermined periodicity corresponding to the predetermined periodicity of the subsequent sheet receiving means and means downstream of said stopping and releasing means traveling, when operating, in the conveying path and parallel to said conveying means and having means for receiving and equally spacing the leading and trailing edges of consecutive sheets released from the sheet stopping and releasing means.
Claim 3
Dependent Claim
144 words
Control system for transporting consecutive sheets to a subsequent sheet receiving means, such subsequent means being timed for receiving the consecutive sheets with a predetermined periodicity, comprising sheet conveying means defining a sheet conveying path, means spaced from and, when operative, extending into and out of the sheet conveying path at the upstream end thereof for inItially stopping and then releasing the sheets to travel along the path, said stopping and releasing means including means for timing the stopping and releasing of sheets with a predetermined periodicity corresponding to the predetermined periodicity of the subsequent sheet receiving means and means downstream of said stopping and releasing means traveling, when operating, in the conveying path and parallel to said conveying means and having means for receiving and equally spacing the leading and trailing edges of consecutive sheets released from the sheet stopping and releasing means.
Claim 4
Dependent Claim
144 words
Control system for transporting consecutive sheets to a subsequent sheet receiving means, such subsequent means being timed for receiving the consecutive sheets with a predetermined periodicity, comprising sheet conveying means defining a sheet conveying path, means spaced from and, when operative, extending into and out of the sheet conveying path at the upstream end thereof for inItially stopping and then releasing the sheets to travel along the path, said stopping and releasing means including means for timing the stopping and releasing of sheets with a predetermined periodicity corresponding to the predetermined periodicity of the subsequent sheet receiving means and means downstream of said stopping and releasing means traveling, when operating, in the conveying path and parallel to said conveying means and having means for receiving and equally spacing the leading and trailing edges of consecutive sheets released from the sheet stopping and releasing means.
Claim 5
Dependent Claim
59 words
Control system according to claim 1, in which said equalizing means comprises an endless chain carrying equidistantly spaced gripper elements parallel to but at a slower speed than the sheet conveying means and means are provided for opening the gripper elements to receive the sheets from the conveying means and for closing the gripper elements upon the received sheets.
Claim 6
Dependent Claim
44 words
Control system according to claim 2, further comprising means in said conveying path for detecting a defective sheet and means for inactivating said gripper opening means in response to said detecting means thereby to prevent receipt by the gripper elements of the defective sheet.
Claim 7
Dependent Claim
48 words
Control system according to claim 2 wherein said equidistantly spaced gripper elements are spring loaded and the means for opening the gripper elements comprises rail means engageably aligned with said gripper elements for acting against the spring force holding the gripper elements closed and for opening the same.
Claim 8
Dependent Claim
139 words
Control system for transporting consecutive sheets delivered thereto in untimed relationship, comprising, sheet conveying means defining a sheet conveying path, means spaced from and, when operative, extending into and out of the sheet conveying path at the upstream end thereof for initially stopping and then releasing the sheets to travel along the path, said stopping and releasing means including means for timing the stopping and releasing of the sheets with a predetermined periodicity, means downstream of said stopping and releasing means travelling, when operating, in the conveying path and parallel to said conveying means and having means for receiving and equally spacing the leading and trailing edges of consecutive sheets released from the sheet stopping and releasing means, and means for receiving the spaced sheets consecutively with a periodicity corresponding to the periodicity of said stopping and releasing means.
Claim 9
Dependent Claim
139 words
Control system for transporting consecutive sheets delivered thereto in untimed relationship, comprising, sheet conveying means defining a sheet conveying path, means spaced from and, when operative, extending into and out of the sheet conveying path at the upstream end thereof for initially stopping and then releasing the sheets to travel along the path, said stopping and releasing means including means for timing the stopping and releasing of the sheets with a predetermined periodicity, means downstream of said stopping and releasing means travelling, when operating, in the conveying path and parallel to said conveying means and having means for receiving and equally spacing the leading and trailing edges of consecutive sheets released from the sheet stopping and releasing means, and means for receiving the spaced sheets consecutively with a periodicity corresponding to the periodicity of said stopping and releasing means.
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) | 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 |