Briquettes

Details Briquettes Briquettes

2008-01-01

2008-01-01

Levy, Neil S. (Department: 1615)

Drug, bio-affecting and body treating compositions

Preparations characterized by special physical form

Biocides; animal or insect repellents or attractants

C424S405000, C424S406000, C424S408000, C424S409000, C424S084000, C043S131000

Reexamination Certificate

active

10450354

ABSTRACT:
A briquette, which is easily pierceable and supportable, comprises compacted particulate material and has an outer region (1) and an inner region (2), said inner region (2) being provided with a well (3) having a diameter which decreases progressively in a non-linear relationship with increasing distance from the top of the well such that the sides of the well extend convexly into the well. The briquette, preferably, is a rodenticide block although it may, instead, be a block for sanitary, and/or domestic use. The briquette may be manufactured by compacting particulate material into the nip between a first rotating roll, having a surface provided with a suitable mould, and a second, counter-rotating roll.

REFERENCES:
patent: 2595865 (1952-05-01), Lunsford
patent: 3113076 (1963-12-01), Jacobs
patent: 3840631 (1974-10-01), Alexander
patent: 4057381 (1977-11-01), Korsch
patent: 4798529 (1989-01-01), Klinner
patent: 4816262 (1989-03-01), McMullen
patent: 4891218 (1990-01-01), Sherman
patent: 5449514 (1995-09-01), Marshall et al.
patent: 6009690 (2000-01-01), Breitenbach

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