Method for producing transparent panel units a panel unit thus p

Details Method for producing transparent panel units a panel unit thus p Method for producing transparent panel units a panel unit thus p

1992-05-20

1995-02-07

Watkins, III, William

Stock material or miscellaneous articles

Structurally defined web or sheet

Including sheet or component perpendicular to plane of web...

428126, 428 99, 428167, 428181, 428192, 428 38, 428418, 428122, 428 83, 428358, 52821, 52823, 52578, B32B 302, B32B 514

Patent

active

053874560

ABSTRACT:
There is provided a method for producing extruded, optical-quality, transparent panel units having integral flange members for joining to adjacent, similar panel units. The method includes the steps of extruding a substantially flat strip of suitable plastic material, calendering the extruded strip by pulling it in the still hot, pliable state through a calender, at least the central portion of the strip being smoothened to an optical-quality transparency and the marginal portions of the strip being provided with at least one sawtooth-like, continuous projection on at least one face of the marginal portions, controllably heating the strip at a limited zone on the one face to render the zone pliable, using bending rolls to bend the marginal portions at substantially a right angle, so as to turn them into flange members, the inside corners formed by the bending rolls between the central portion and the marginal portions being rounded, and finally, cutting the flanged panels to required length. A panel unit and a calender roll for producing the unit are also disclosed.

REFERENCES:
patent: 3329555 (1967-07-01), Sonneborn et al.
patent: 3416282 (1968-12-01), Daugherty
patent: 3478138 (1969-11-01), Freisner
patent: 3533896 (1970-10-01), Hartig
patent: 3574449 (1971-04-01), Rosenberg
patent: 4435460 (1984-03-01), Menzel
patent: 4454181 (1984-06-01), Hohn
patent: 4463046 (1984-07-01), Hutchison et al.
patent: 4562027 (1985-12-01), Behr et al.
patent: 4775570 (1988-10-01), Ohlenforst et al.
patent: 4925512 (1990-05-01), Briand
patent: 4985192 (1991-01-01), Roeder et al.

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