US 6,685,758 B1Granted

Material disposal system

AssigneeSprague Air Controls, Inc.

InventorsThomas F. Bennett, Thomas P. LeClair

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Abstract

A material disposal system ideally suited for use in container filling operations and includes a cover member and a hopper having a lower door operable relative to the hopper by pneumatic or other actuating means for opening and closing the passage disposed above a drum or other container to be filled. The cover member and hopper are fixedly attached to each other. The cover member forms a seal around the inside of the container opening such that air and other gases escaping from the container by the filling or other material handling operation are directed through filter means which separate airborne particulates therefrom. The material disposal system is adaptable for covering and sealing a wide variety of containers. The filter means is adaptable for filtering a wide variety of materials and particulate sizes for removal of noxious gases, vapors and other airborne effluents.

Claims17

Dependent claims

A noxious gas filtering system for use with a disposal container comprising:

a cover member adapted to be lowered into a position on top of an opening of the disposal container, said cover member being adapted to provide a substantially airtight seal between said cover member and the disposal container, said cover member having a passage therethrough, said cover member further having a upper end and a lower end;
at least one lid pivotally attached to said upper end of said cover member to provide a substantially airtight seal between said at least one lid and said upper end of said cover member, said at least one lid extends outwardly from said cover member with sufficient extension to provide adequate clearance for inserting waste material into said cover member;
and
at least one door pivotally attached to said lower end of said cover member to provide a substantially airtight seal between said at least one door and said lower end of said cover member, said at least one door down extends outwardly from said cover member with sufficient extension to provide adequate clearance for dropping waste material into the disposal container, said at least one door being somewhat smaller than the opening of the disposal container.

1 more element

A noxious gas filtering system for use with a disposal container comprising:

a cover member adapted to be lowered into a position on top of an opening of the disposal container, said cover member being adapted to provide a substantially airtight seal between said cover member and the disposal container, said cover member having a passage therethrough, said cover member further having a upper end and a lower end;
at least one lid pivotally attached to said upper end of said cover member to provide a substantially airtight seal between said at least one lid and said upper end of said cover member, said at least one lid extends outwardly from said cover member with sufficient extension to provide adequate clearance for inserting waste material into said cover member;
at least one door pivotally attached to said lower end of said cover member to provide a substantially airtight seal between said at least one door and said lower end of said cover member, said at least one door down extends outwardly from said cover member with sufficient extension to provide adequate clearance for dropping waste material into the disposal container, said at least one door being somewhat smaller than the opening of the disposal container;
actuating means for raising and lowering said at least one door;
a material handling insert disposed within said passage of said cover member such that said actuating means is protected from damage from waste material flowing through said passage of said cover member, said material handling insert having a channel therethrough for waste material to pass through;
and
odor purging means for removing odor particles which may be contained in said material handling insert, said odor purging means connected to said material handling insert.

4 more elements

Dependencies are inferred from the claim text.