Patent US2274789A successfully refreshed from Google Patents.
Patent EP1129961A2 successfully refreshed from Google Patents.
EP1129961A2
Expired / Lapsed
EP
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Powder container, method of assembling the same and method of reducing the volume of the same
Assignee: Ricoh Co Ltd
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Filing: 2001-02-28
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Granted: —
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Expires: 2021-02-28
Abstract
Abstract A powder container of the present invention is made up of a flexible or deformable bag (20) storing powder therein and a box (50) for accommodating the bag. A seal valve is fitted in an outlet portion formed in the bag while a cap removably closes the outlet portion. When the bag is pressed in the collapsing direction, the powder is prevented from flying about via the seal valve (23). The powder container is easy to assemble.
Inventors
- 👤 Goro Katsuyama
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-10-28 20:09
CPC Classifications
G; G03; G03G; G03G15/00; G03G15/06; G03G15/08; B; B65; B65D; B65D77/00; B65D77/04; B65D77/06; G03G15/0822; G03G15/0848; G03G15/0849; G03G15/0855; G03G15/0865; G03G15/0874; G03G15/0877; G03G15/0881; G03G15/0886; G03G2215/00; G03G2215/06; G03G2215/066; G03G2215/0682
Claims Analysis
Total Claims: 21
Claim 1
Independent Claim
95 words
A powder container comprising: a deformable, powder storing body storing powder
therein; a box more rigid than said bag for accommodating
said powder storing body; a powder outlet portion included in said powder
storing body and partly showing itself at an outside
of said box when said powder storing body is accommodated
in said box; a self-closing valve fitted in said powder outlet
portion and opening when an insertion member is
inserted or closing when said insertion member is
pulled out; and closing means removably attached to said powder
outlet for closing said self-closing valve.
Claim 2
Dependent Claim
36 words
The powder container as claimed in claim 1,
further comprising a mouth member mounted on said
powder storing body and formed with said powder outlet
portion, wherein said self-closing valve is fitted
in said mouth member.
Claim 3
Dependent Claim
24 words
The powder container as claimed in claims 1
or 2, wherein said insertion member comprises a nozzle
in which a powder passage is formed.
Claim 4
Dependent Claim
40 words
The powder container as claimed in claims 1,
2 or 3, wherein said closing means, said mouth member
and a connecting portion connecting said closing
means to said mouth member are formed of resin and
molded integrally with each other.
Claim 5
Dependent Claim
37 words
The powder container as claimed in claims 1,
2, 3 or 4, further comprising a fitting portion included
in said box for fitting said closing means
when said closing means is removed from said powder
outlet portion.
Claim 6
Dependent Claim
31 words
The powder container as claimed in one of
the preceding claims, wherein said closing means removed
from said toner outlet portion and said connecting
portion are fitted in said fitting portion.
Claim 7
Dependent Claim
42 words
The powder container as claimed in claims 5
or 6, further comprising an opening/closing portion
included in said box and openable when said powder
storing body is to be inserted into said box, said
fitting portion being formed on said opening/closing
portion.
Claim 8
Dependent Claim
25 words
The powder container as claimed in one of
the preceding claims, wherein said closing means comprises
a cap removably fitted on said powder outlet
portion.
Claim 9
Dependent Claim
22 words
The powder container as claimed in one of
the preceding claims, wherein said closing means is
connected to said powder storing body.
Claim 10
Dependent Claim
46 words
The powder container as claimed in one of
the preceding claims, further comprising a mouth member
mounted on said powder storing body and formed
with said powder outlet portion, said closing means
being connected at one end thereof to said mouth member
via a connecting portion.
Claim 11
Dependent Claim
33 words
The powder container as claimed in claims 4
or 10, wherein said connecting portion is formed with
grooves in the vicinity of opposite ends thereof for
connection in order to determine folding positions.
Claim 12
Dependent Claim
48 words
A powder container comprising: a deformable, powder storing body storing powder
therein; a box more rigid than said bag for accommodating
said powder storing body; arid an exhausting portion included in said powder
storing body for exhausting said powder storing body
of air while filtering out the powder.
Claim 13
Dependent Claim
25 words
The powder container as claimed in claim 12,
wherein said exhausting portion comprises a filter
that passes air therethrough, but does not pass the
powder.
Claim 14
Dependent Claim
59 words
A powder container comprising: a deformable, powder storing body storing powder
therein; and a polyhedral box more rigid than said bag for
accommodating said powder storing body; wherein walls of said box each has a contiguous
side contiguous with an adjoining wall and a separate
side and is capable of being developed in a form of a
single sheet.
Claim 15
Dependent Claim
32 words
The powder container as claimed in claim 14,
wherein said walls are rectangular while one of said
walls has four contiguous sides in both of an
up-and-down direction and a right-and-left direction.
Claim 16
Independent Claim
153 words
A method of framing a box included in a powder
container, which is made up of a deformable powder
storing body storing powder therein and said box
more rigid than said powder storing body for accommodating
said toner storing body, said method comprising
the steps of: preparing the box developed in a form of a single
sheet and having rectangular walls each having a
contiguous side contiguous with an adjoining wall and
a separate side, wherein one of said walls has four
contiguous sides in both of an up-and-down direction
and a tight-and-left direction; positioning the box in a jig such that the walls
contiguous with the one wall in the up-and-down direction
are folded at an angle that forms a box; and folding the walls contiguous with the one wall
in the right-and-left direction such that said walls
meet the walls that are contiguous with the one wall
in the up-and-down direction.
Claim 17
Dependent Claim
36 words
The method as claimed in claim 16, wherein
said jig has a width in the right-and left direction
that is substantially equal to or smaller than a
width of the one wall in the right-and-left direction.
Claim 18
Independent Claim
68 words
The method as claimed in claims 16 or 17,
wherein after the box has been positioned in the jig
such that the walls contiguous with the one wall in
the up-and-down direction are folded at the angle
that forms a box, movable bodies are caused to move
along opposite sides of the jig to thereby fold upward
the walls contiguous with the one wall in the
right-and-left direction.
Claim 19
Independent Claim
40 words
The method as claimed in claims 16, 17 or
18, wherein the wall expected to face the one wall is
contiguous with one of the walls contiguous with said
one wall in the right-and-left direction and forms an
opening/closing portion.
Claim 20
Independent Claim
100 words
A method of reducing a volume of a deformable,
powder storing body included in a powder container,
which is made up of said powder storing body
storing powder therein and a box more rigid than said
powder storing body for accommodating said toner
storing body, after substantially fully discharging
said powder from said powder container, said method
comprising the steps of: closing a powder outlet portion included in the
powder storing body with closing means; and pressing the powder storing body in a direction
in which said powder storing body collapses to
thereby exhaust said powder storing body of air.
Claim 21
Dependent Claim
33 words
The method as claimed in claim 20, wherein
the powder storing body stores toner and includes an
exhausting portion implemented by a filter, which
passes air therethrough, but does not pass said toner.
References Cited (Backward Citations)
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