US3927612A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for charging panels into a press
Assignee: Adolf Friz GmbH
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Filing: 1973-12-13
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Granted: 1975-12-23
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Expires: 1993-12-13
Abstract
Abstract A method and apparatus for charging panels, especially panels having a cover layer, into a press for being hot pressed therein between pressing members. Each panel is prepared outside the press on an infeeding conveyor and is moved in parallelism with itself into the pressing space while rotary support members beneath the panel provide support for the panel. The support members move with the panel. The panel is arrested in working position and the support members continue to move until withdrawn from beneath the panel so the panel is deposited vertically downwardly on the lower pressing member. After pressing, the panel is lifted off the lower pressing member by a suction device and is conveyed thereby to an outgoing conveyor.
Inventors
- 👤 Helmut A Friz
- 👤 Dieter Grube
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 06:56
CPC Classifications
B; B27; B27N; B27N3/00; B27N3/08; B27N3/20; B27N3/22
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
155 words
A charging device for feeding panels into a press having opposed pressing members for pressing a cover layer on the panel, said device comprising an endless first conveyor in the press having panel supporting members distributed along a portion only of the length thereof and having one position wherein the supporting members are outside the range of the pressing members, second conveyor means outside the press along which the panels move into the range of said pressing members while said first conveyor is operating to move said supporting members in the range of said pressing members in supporting relation to the panel, and a reciprocable holding member operable to engage the trailing end of a panel moving into the press and halt the panel in working position within the range of said pressing members while said first conveyor moves into said one position thereof and releases the panel for engagement with the lower pressing member.
Claim 2
Dependent Claim
155 words
A charging device for feeding panels into a press having opposed pressing members for pressing a cover layer on the panel, said device comprising an endless first conveyor in the press having panel supporting members distributed along a portion only of the length thereof and having one position wherein the supporting members are outside the range of the pressing members, second conveyor means outside the press along which the panels move into the range of said pressing members while said first conveyor is operating to move said supporting members in the range of said pressing members in supporting relation to the panel, and a reciprocable holding member operable to engage the trailing end of a panel moving into the press and halt the panel in working position within the range of said pressing members while said first conveyor moves into said one position thereof and releases the panel for engagement with the lower pressing member.
Claim 3
Dependent Claim
84 words
A Charging device according to claim 1 which includes endless means supporting said holding member and operable to position said holding member to engage the trailing end of the panel remote from the press prior to feeding the panel into the press and to move the holding member in substantial synchronism with said first conveyor during movement of the panel into working position in the press and also operable to retract said holding member after the panel is in working position in the press.
Claim 4
Dependent Claim
84 words
A charging device according to claim 1 in which said holding member has a groove facing the trailing end of the panel which embraces the trailing end of the panel, and endless supporting means above the holding member pivotally engaging the holding member in a region which is spaced from the said groove in a direction away from the press, said holding member supporting the trailing end of the panel above the level occupied by the panel during pressing thereof by said pressing members.
Claim 5
Dependent Claim
69 words
A charging device according to claim 1 in which said second conveyor means comprises a pair of conveyors each about as long as a said panel and in adjacent coplanar relation with a gap therebetween, said holding member being receivable in said gap when in retracted position for engagement with the trailing end of a panel on the one of said pair of conveyors which is nearest said press.
Claim 6
Dependent Claim
62 words
A charging device according to claim 1 in which said first conveyor comprises at least one endless band, reversing rollers at opposite ends of the working space of the press about which said band is entrained, said supporting members being distributed along a longitudinal region of said band about equal to the length of a panel to be treated in the press.
Claim 7
Dependent Claim
93 words
A charging device according to claim 1 in which said first conveyor comprises a pair of endless bands in respective planes parallel to the direction in which a panel is fed into the press, each of the bands being outside the range of said pressing members on a respective one of the fore and aft sides of the press, said supporting members comprising roller bodies extending laterally between said bands and distributed along a longitudinal region thereof about equal to the length of the working space of said press in the feed direction.
Claim 8
Dependent Claim
27 words
A charging device according to claim 6 which includes a feed foil exchangeably connected to said supporting members and disposed within the range of said pressing members.
Claim 9
Dependent Claim
90 words
A charging device according to claim 1 in which said second conveyor means comprises a pair of conveyors in end to end relation and each about as long as a panel to be fed into the press, a discharge conveyor on the side of the press opposite said pair of conveyors, and a suction device operable to engage a panel in working space in the press from above operable to lift a pressed panel off the lower pressing member and move the panel from the press to the discharge conveyor.
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) | 1978-12-22 | 1979-06-23 | 1979-12-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-12-22 | 1983-06-23 | 1983-12-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-12-22 | 1987-06-23 | 1987-12-23 | $7700.00 | Window Closed / Lapsed |