US3647045A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for stacking units of sheet material
Assignee: National Steel Corp
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Filing: 1970-02-06
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Granted: 1972-03-07
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Expires: 1990-02-06
Abstract
Abstract An apparatus for stacking units of sheet material in staggered relationship including a receiver with end plates spaced apart a distance greater than the length of the sheet material to be stacked, a feed device for feeding individual sheets into the receiver, a positioning device in the receiver for directing individual sheets against one or the other of the end plates and a control selectively directing the positioning device to achieve staggered stacking of units of sheet material.
Inventors
- 👤 Hans F Wegener
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 15:24
CPC Classifications
B; B65; B65H; B65H33/00; B65H33/06; B65H33/08; B65H2301/00; B65H2301/40; B65H2301/42; B65H2301/421; B65H2301/4219; B65H2301/42194
Claims Analysis
Total Claims: 19
Claim 1
Independent Claim
141 words
An apparatus for stacking units of sheet material in staggered relationship comprising: a. a receiver having end plates at opposite ends thereof, said end plates being spaced from one another a distance greater than the length of said sheet material, b. feed means disposed to feed the sheet material in individual sheets into the receiver, c. sheet-positioning means comprising at least one rotating roller means associated with the receiver having an axis of rotation normal to the path of sheet material fed thereto, and means associated with the roller means to cause the roller means to grip the topmost sheet received by the receiver and move it in a horizontal plane into engagement with one of the end plates, and d. control means to actuate the sheet positioning means selectively to position each sheet against a desired one of the plates.
Claim 2
Independent Claim
141 words
An apparatus for stacking units of sheet material in staggered relationship comprising: a. a receiver having end plates at opposite ends thereof, said end plates being spaced from one another a distance greater than the length of said sheet material, b. feed means disposed to feed the sheet material in individual sheets into the receiver, c. sheet-positioning means comprising at least one rotating roller means associated with the receiver having an axis of rotation normal to the path of sheet material fed thereto, and means associated with the roller means to cause the roller means to grip the topmost sheet received by the receiver and move it in a horizontal plane into engagement with one of the end plates, and d. control means to actuate the sheet positioning means selectively to position each sheet against a desired one of the plates.
Claim 3
Independent Claim
155 words
An apparatus for stacking units of sheet material in staggered relationship comprising: a. a receiver having end plates at opposite ends thereof, said end plates being spaced from one another a distance greater than the length of said sheet material, b. feed means disposed to feed the sheet material in individual sheets into the receiver, c. sheet-positioning means disposed to engage each of the sheets fed to the receiver and to selectively move each sheet to place an edge of each sheet against one of the end plates, and d. control means to actuate the sheet positioning means selectively to position each sheet against a desired one of the end plates, including a counting means to actuate the positioning means selectively to position a plurality of sheets in engagement with a desired one of the end plates and then to position a plurality of sheets in engagement with the other one of the end plates.
Claim 4
Independent Claim
155 words
An apparatus for stacking units of sheet material in staggered relationship comprising: a. a receiver having end plates at opposite ends thereof, said end plates being spaced from one another a distance greater than the length of said sheet material, b. feed means disposed to feed the sheet material in individual sheets into the receiver, c. sheet-positioning means disposed to engage each of the sheets fed to the receiver and to selectively move each sheet to place an edge of each sheet against one of the end plates, and d. control means to actuate the sheet positioning means selectively to position each sheet against a desired one of the end plates, including a counting means to actuate the positioning means selectively to position a plurality of sheets in engagement with a desired one of the end plates and then to position a plurality of sheets in engagement with the other one of the end plates.
Claim 5
Dependent Claim
25 words
An apparatus in accordance with claim 1 wherein the sheet material is magnetic and wherein the means associated with the roller means comprise an electromagnet.
Claim 6
Independent Claim
195 words
An apparatus for stacking units of magnetic sheet material in staggered relationship comprising: a. a receiver having end plates at opposite ends thereof, said end plates being spaced from one another a distance greater than the length of said sheet material, b. feed means disposed to feed the sheet material in individual sheets into the receiver, c. sheet positioning means comprising at least one rotating roller means associated with the receiver having an axis of rotation normal to the path of the sheet material fed Thereto, and means comprising an electromagnet associated with the roller means to cause the roller means to engage the topmost sheet received by the receiver for movement of the topmost sheet by the roller means into engagement with one of the end plates, and d. control means to actuate the sheet positioning means selectively to position each sheet against a desired one of the end plates, including a counting means to actuate the sheet-positioning means selectively to position a plurality of sheets in engagement with a desired one of the end plates and then to position a plurality of sheets in engagement with the other one of the end plates.
Claim 7
Independent Claim
195 words
An apparatus for stacking units of magnetic sheet material in staggered relationship comprising: a. a receiver having end plates at opposite ends thereof, said end plates being spaced from one another a distance greater than the length of said sheet material, b. feed means disposed to feed the sheet material in individual sheets into the receiver, c. sheet positioning means comprising at least one rotating roller means associated with the receiver having an axis of rotation normal to the path of the sheet material fed Thereto, and means comprising an electromagnet associated with the roller means to cause the roller means to engage the topmost sheet received by the receiver for movement of the topmost sheet by the roller means into engagement with one of the end plates, and d. control means to actuate the sheet positioning means selectively to position each sheet against a desired one of the end plates, including a counting means to actuate the sheet-positioning means selectively to position a plurality of sheets in engagement with a desired one of the end plates and then to position a plurality of sheets in engagement with the other one of the end plates.
Claim 8
Independent Claim
177 words
An apparatus for stacking units of magnetic sheet material in staggered relationship comprising: a. a receiver having end plates at opposite ends thereof, said end plates being spaced from one another a distance greater than the length of said sheet material, b. feed means disposed to feed the sheet material in individual sheets into the receiver, c. sheet-positioning means comprising at least one rotating roller means associated with the receiver having an axis of rotation normal to the path of the sheet material fed thereto, and means comprising an electromagnet associated with the roller means to cause the roller means to engage the topmost sheet received by the receiver for movement of the topmost sheet by the roller means into engagement with one of the end plates, and d. control means to actuate the sheet-positioning means selectively to position each sheet against a desired one of the end plates, including a counting means for reversing direction of the action of the electromagnet and roller means after receipt of a predetermined number of the sheets in the receiver.
Claim 9
Independent Claim
177 words
An apparatus for stacking units of magnetic sheet material in staggered relationship comprising: a. a receiver having end plates at opposite ends thereof, said end plates being spaced from one another a distance greater than the length of said sheet material, b. feed means disposed to feed the sheet material in individual sheets into the receiver, c. sheet-positioning means comprising at least one rotating roller means associated with the receiver having an axis of rotation normal to the path of the sheet material fed thereto, and means comprising an electromagnet associated with the roller means to cause the roller means to engage the topmost sheet received by the receiver for movement of the topmost sheet by the roller means into engagement with one of the end plates, and d. control means to actuate the sheet-positioning means selectively to position each sheet against a desired one of the end plates, including a counting means for reversing direction of the action of the electromagnet and roller means after receipt of a predetermined number of the sheets in the receiver.
Claim 10
Independent Claim
190 words
An apparatus for stacking units of sheet material in staggered relationship comprising: a. a receiver having end plates at opposite ends thereof, said end plates being spaced from one another a distance greater than the length of said sheet material, b. feed means disposed to feed the sheet material in individual sheets into the receiver, c. sheet-positioning means comprising at least one rotating roller means associated with the receiver having an axis of rotation normal to the path of the sheet material fed thereto, and means associated with the roller means to cause the roller means to engage the topmost sheet received by the receiver for movement of the topmost sheet by the roller means into engagement with one of the end plates, and d. control means to actuate the sheet positioning means selectively to position each sheet against a desired one of the end plates, including a counting means to actuate the positioning means selectively to position a plurality of sheets in engagement with a desired one of the end plates and then to position a plurality of sheets in engagement with the other one of the end plates.
Claim 11
Independent Claim
190 words
An apparatus for stacking units of sheet material in staggered relationship comprising: a. a receiver having end plates at opposite ends thereof, said end plates being spaced from one another a distance greater than the length of said sheet material, b. feed means disposed to feed the sheet material in individual sheets into the receiver, c. sheet-positioning means comprising at least one rotating roller means associated with the receiver having an axis of rotation normal to the path of the sheet material fed thereto, and means associated with the roller means to cause the roller means to engage the topmost sheet received by the receiver for movement of the topmost sheet by the roller means into engagement with one of the end plates, and d. control means to actuate the sheet positioning means selectively to position each sheet against a desired one of the end plates, including a counting means to actuate the positioning means selectively to position a plurality of sheets in engagement with a desired one of the end plates and then to position a plurality of sheets in engagement with the other one of the end plates.
Claim 12
Independent Claim
123 words
An apparatus for stacking units of sheet material in staggered relationship comprising: a. a receiver having end plates at opposite ends thereof, said end plates being spaced from one another a distance greater than the length of said sheet material, b. feed means disposed to feed the sheet material in individual sheets into the receiver, c. sheet positioning means disposed to engage each of the sheets fed to the receiver and to selectively move each sheet to place an edge of each sheet against one of the end plates and comprising a pair of roller means rotating in opposite directions, and d. control means to actuate the sheet positioning means selectively to position each sheet against a desired one of the end plates.
Claim 13
Independent Claim
123 words
An apparatus for stacking units of sheet material in staggered relationship comprising: a. a receiver having end plates at opposite ends thereof, said end plates being spaced from one another a distance greater than the length of said sheet material, b. feed means disposed to feed the sheet material in individual sheets into the receiver, c. sheet positioning means disposed to engage each of the sheets fed to the receiver and to selectively move each sheet to place an edge of each sheet against one of the end plates and comprising a pair of roller means rotating in opposite directions, and d. control means to actuate the sheet positioning means selectively to position each sheet against a desired one of the end plates.
Claim 14
Dependent Claim
47 words
An apparatus in accordance with claim 7 wherein the sheet positioning means include means for holding each of the sheets in frictional contact with the sheet positioning means whereby the sheet positioning means is enabled to move each sheet into engagement with one of the end plates.
Claim 15
Dependent Claim
44 words
An apparatus in accordance with claim 7 wherein the controL means include means to actuate selectively alternate ones of the roller means to alternate the direction of movement of the sheets as a function of the direction of rotation of the roller means energized.
Claim 16
Dependent Claim
55 words
An apparatus in accordance with claim 7 wherein the control means include a counting means to actuate the positioning means selectively to position a plurality of sheets in engagement with a desired one of the end plates and then to position a plurality of sheets in engagement with the other one of the end plates.
Claim 17
Dependent Claim
44 words
An apparatus in accordance with claim 8 wherein the control means include means to actuate selectively alternate ones of the roller means to alternate the direction of movement of the sheets as a function of the direction of rotation of the roller means actuated.
Claim 18
Dependent Claim
41 words
An apparatus in accordance with claim 6 wherein the roller means include means for holding a sheet in frictional contact with the roller means whereby rotation of the roller means moves each sheet into engagement with one of the end plates.
Claim 19
Dependent Claim
55 words
An apparatus in accordance with claim 6 wherein the control means include a counting means to actuate the positioning means selectively to position a plurality of sheets in engagement with a desired one of the end plates and then to position a plurality of sheets in engagement with the other one of the end plates.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-03-07 | 1975-09-06 | 1976-03-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-03-07 | 1979-09-06 | 1980-03-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-03-07 | 1983-09-06 | 1984-03-07 | $7700.00 | Window Closed / Lapsed |