Plastic article or earthenware shaping or treating: apparatus – Distinct means to feed – support or manipulate preform stock... – Female mold type means
Patent
1983-04-21
1986-03-04
Simmons, David
Plastic article or earthenware shaping or treating: apparatus
Distinct means to feed, support or manipulate preform stock...
Female mold type means
2642711, 264273, 264275, 425127, 425128, 425129R, B29C 2714
Patent
active
045738963
ABSTRACT:
The invention comprises a method and various apparatus related to fabricating solid particulate filter bodies and other honeycomb structures the cells of which are selectively charged with a plugging or other flowable material. Solid coverings are applied over the end faces of a honeycomb structure, preferably an adhesive backed transparent thermoplastic film such as polyester, openings are created through the covering, preferably by melting the thermoplastic film, and the sealing or other flowable material is charged through the openings formed in the covering into the underlying cells.
A porous walled honeycomb structure having coverings adhered to its end faces with selective openings therethrough is itself a solid particulate filter of some usage. A more substantial solid particulate filter body may be formed by charging a more durable sealant through the openings to form plugs and removing the coverings.
An envisioned automated method and apparatus for forming openings through the covering is described and consists of an image analyzer which examines the surface of the structure and outputs signals to a jig for precision positions of a tool for forming openings through the covering.
Other ancillary apparatus and methods described include: a double headed press for simultaneously charging ceramic cement or other flowable materials into both end faces of a honeycomb structure; opening forming tools mounting a plurality of opening forming elements; and a dispenser for automatically applying a preformed flexible covering such as a polyester film to an end face of a honeycomb structure.
REFERENCES:
patent: 2030132 (1936-02-01), Apple
patent: 2949643 (1960-08-01), Hosbein
patent: 2986411 (1961-05-01), Anderson
patent: 3175472 (1965-03-01), Little
patent: 3204858 (1965-09-01), Dros
patent: 3489829 (1970-01-01), Lipfert
patent: 3938923 (1976-02-01), Dziedzic
patent: 4032611 (1977-06-01), Fukuoka
patent: 4252513 (1981-02-01), Kalnins
Corning Glass Works
Simmons David
Wardell R. N.
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