US4253891A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process and device for the charging, pressing and removing stacked packs from a heat press
Assignee: Maschinenfabrik J Dieffenbacher GmbH and Co
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Filing: 1979-06-08
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Granted: 1981-03-03
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Expires: 1999-06-08
Abstract
Abstract An apparatus and process is provided for charging, pressing and removing laminated sheets from a heat press. An unpressed laminate is placed on a conveyor tray which is inserted into the heat press from one end as a suction carrier is inserted from the other. The suction carrier removes a pressed laminate as the conveyor tray positions one end of the laminate on the top of the suction carrier. A belt mechanism on the top of the suction carrier, together with the conveyor tray, assists in positioning the entire laminate on a lower hot plate of the heat press at substantially the same time. The suction carrier and conveyor tray are simultaneously removed from the heat press so that the pressing action can occur.
Inventors
- 👤 Richard Brussel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 16:01
CPC Classifications
B; B32; B32B; B32B38/00; B32B38/18; B27; B27N; B27N3/00; B27N3/08; B27N3/20; B27N3/22; B32B38/1858; B32B2317/00; B32B2317/16; Y; Y10; Y10T; Y10T156/00; Y10T156/10; Y10T156/17
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
154 words
A process for charging, pressing and removing laminated sheets comprising: (a) providing a carrier sheet having a top and a bottom, (b) placing on the top and bottom a protective sheet forming an unpressed laminate, (c) placing the unpressed laminate on a conveying means, (d) moving the conveying means into an open heat press, the heat press having upper and lower hot plates, (e) moving a suction means into the open heat press, (f) the conveying means being initially offset in height from the suction means, (g) the suction means substantially simultaneously removing a pressed laminate from the heat press as the conveying means moves the unpressed laminate therein, (h) moving a portion of the unpressed laminate onto the suction means while a portion remains on the conveying means, (i) placing the unpressed laminate on the lower hot plate by substantially simultaneously removing the conveying means and the suction means from the heat press.
Claim 2
Dependent Claim
154 words
A process for charging, pressing and removing laminated sheets comprising: (a) providing a carrier sheet having a top and a bottom, (b) placing on the top and bottom a protective sheet forming an unpressed laminate, (c) placing the unpressed laminate on a conveying means, (d) moving the conveying means into an open heat press, the heat press having upper and lower hot plates, (e) moving a suction means into the open heat press, (f) the conveying means being initially offset in height from the suction means, (g) the suction means substantially simultaneously removing a pressed laminate from the heat press as the conveying means moves the unpressed laminate therein, (h) moving a portion of the unpressed laminate onto the suction means while a portion remains on the conveying means, (i) placing the unpressed laminate on the lower hot plate by substantially simultaneously removing the conveying means and the suction means from the heat press.
Claim 3
Dependent Claim
29 words
A process as defined in claim 1 including maintaining the unpressed laminate above the lower hot plate during the removal of the conveying and suction means in opposite directions.
Claim 4
Independent Claim
78 words
A device for charging, pressing and discharging laminated sheets comprising: (a) a heat press, (b) a conveying means for charging the heat press, (c) a suction means for discharging the heat press, (d) said suction means having a pair of ends and an upper side and a conveyor belt thereon, said belt being drivable in two directions by means of a plurality of rolls, and (e) a holding means positioned on said suction means at one end thereof.
Claim 5
Independent Claim
78 words
A device for charging, pressing and discharging laminated sheets comprising: (a) a heat press, (b) a conveying means for charging the heat press, (c) a suction means for discharging the heat press, (d) said suction means having a pair of ends and an upper side and a conveyor belt thereon, said belt being drivable in two directions by means of a plurality of rolls, and (e) a holding means positioned on said suction means at one end thereof.
Claim 6
Independent Claim
86 words
A device for charging, pressing and discharging laminated sheets comprising: (a) a heat press, (b) a conveying means for charging the heat press, (c) a suction means for discharging the heat press, (d) said suction means having a pair of ends and an upper side and a conveyor belt thereon, said belt being drivable in two directions by means of a plurality of rolls, one of said rolls being a reversing roll and being mounted on one end of said suction means and being pivotable thereon.
Claim 7
Independent Claim
86 words
A device for charging, pressing and discharging laminated sheets comprising: (a) a heat press, (b) a conveying means for charging the heat press, (c) a suction means for discharging the heat press, (d) said suction means having a pair of ends and an upper side and a conveyor belt thereon, said belt being drivable in two directions by means of a plurality of rolls, one of said rolls being a reversing roll and being mounted on one end of said suction means and being pivotable thereon.
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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) | 1984-03-02 | 1984-09-01 | 1985-03-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1988-03-02 | 1988-09-01 | 1989-03-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1992-03-02 | 1992-09-01 | 1993-03-03 | $7700.00 | Window Closed / Lapsed |