Apparatus for the manufacture of perforated plaster boards...

Details Apparatus for the manufacture of perforated plaster boards... Apparatus for the manufacture of perforated plaster boards...

2007-03-27

2007-03-27

Ashley, Boyer D. (Department: 3724)

Cutting

Processes

With reorientation of work between cuts

C083S039000, C083S404000, C083S404100, C083S404200, C083S405000

Reexamination Certificate

active

10455608

ABSTRACT:
In an apparatus and a method for the manufacture of perforated plaster boards, provision is made for the operations of punching and cutting the sides to take place one directly after the other with the boards being held in position by grabbing and conveying equipments during the entire working time.

REFERENCES:
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patent: 2272703 (1942-02-01), Haegele
patent: 2290557 (1942-07-01), Heath
patent: 2315256 (1943-03-01), Haegele et al.
patent: 2323564 (1943-07-01), Page
patent: 4048887 (1977-09-01), Morse et al.
patent: 4381686 (1983-05-01), Ess
patent: 6546834 (2003-04-01), Benuzzi
patent: 43 11 582 (1994-05-01), None
patent: 34 12 441 (1994-09-01), None

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