Panel press

Details Panel press Panel press

2006-04-12

2008-03-04

Mackey, James P. (Department: 1722)

Plastic article or earthenware shaping or treating: apparatus

Press forming means, press reshaping means, or vulcanizing...

Cooperating endless belts

C425S405100, C100S154000

Reexamination Certificate

active

07338274

ABSTRACT:
A pressing apparatus for continuous pressing of panels, which apparatus consists of two pressure chambers juxtaposed with a vertical clearance. Each of the chambers occupying a platen in a sealed sliding contact to the vertical inner side walls of the chamber. The mutual distance of the platens define the clearance. A transport band is in sliding contact to the platen of each chamber. The chambers are pressurized. The platen edges in contact with the band are provided with a seal having a protrusion directed towards the middle area of the platen, and means are provided to exert and maintain a pressure in the volume defined by the platen, the band and the seal.

REFERENCES:
patent: 2135763 (1938-11-01), Nicholson
patent: 3981666 (1976-09-01), Wadman
patent: 4285525 (1981-08-01), Held
patent: 4311550 (1982-01-01), Kerttula
patent: 4365548 (1982-12-01), Pankoke
patent: 4419062 (1983-12-01), de Mets
patent: 4485733 (1984-12-01), Held
patent: 4541889 (1985-09-01), Held
patent: 4645632 (1987-02-01), Bottger et al.
patent: 4802837 (1989-02-01), Held
patent: 4921569 (1990-05-01), Held
patent: 72917 (1987-04-01), None
patent: 1873989 (1989-03-01), None

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