Fluent material handling – with receiver or receiver coacting mea – Fluent charge impelled or fluid current conveyed into receiver
Reexamination Certificate
2005-06-21
2005-06-21
Douglas, Steven O. (Department: 3751)
Fluent material handling, with receiver or receiver coacting mea
Fluent charge impelled or fluid current conveyed into receiver
C141S001000, C141S098000, C118S404000, C118SDIG020
Reexamination Certificate
active
06907908
ABSTRACT:
A hopper apparatus for applying joint compound to corner beads has a hopper for holding a quantity of joint compound and a feeder apparatus secured across the lower end of the hopper. The feeder apparatus has a channel and a series of elongate feeder inserts for selectively securing in the channel. A first set of outside feeder inserts each have a generally V-shaped indented groove extending along their length for guiding an outside corner bead through the feeder apparatus, while a second set of inside feeder inserts each have a generally V-shaped ridge extending along their length for guiding an inside corner bead through the feeder. The feeder inserts in each set have grooves and ridges of different angles and corner shapes matching those of a plurality of different inside and outside corner beads, and are releasably secured in the channel.
REFERENCES:
patent: 163825 (1875-05-01), Wallick
patent: 2570379 (1951-10-01), Robinson
patent: 4259379 (1981-03-01), Britton et al.
patent: 4398690 (1983-08-01), Rutledge
patent: 5169449 (1992-12-01), Raught
patent: 5242495 (1993-09-01), Hammond et al.
patent: 5676793 (1997-10-01), Martin et al.
Pla-Cor, Inc. Convertible Hopper Advertisment, Jun. 1995.
Douglas Steven O.
Gordon & Rees LLP
Pla-Cor Incorporated
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