US 2003/0196984 A1 · Plugging member for a drain port having a portion with decreased thickness and container using the same

Abstract

In each of radial grooves 52 which are formed on a sealing disc portion 34 of a packing 10, low strength portions 64 are formed within a predetermined range from the center of the sealing disc portion 34 by decreasing the thickness of each of thin portions 62 by deeply cutting each of the radial grooves 52. When the center of the sealing disc portion 34 is pressed by the pressing means, splits are formed at the low strength portions 64, and extend to curved grooves 54 and circumferential grooves 56. As a result, it is possible to obtain a plugging member in which a draining port can be opened wide with a small amount of pressing force.

Drawings

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Drawings

Claims29

Dependent claims

A plug for a drain port in a container for holding a material, the plug comprising:

a substantially flat plug plate body, of one chemical composition, adapted for mounting in said drain port and plugging said drain port when mounted therein, said plug plate body including opposite surfaces having a thickness L defined between the opposite surfaces from one of said opposite surfaces to the other of said opposite surfaces, and at least one groove having one of a rectangular shape, a substantially trapezoidal shape and a substantially V-shape and formed transversely in one of said opposite surfaces, the at least one groove having at least two different depths therein, one depth being a low strength portion where strength is decreased relative to the other depth of the groove by changing a groove thickness, which is defined from a groove bottom to the other of said opposite surfaces, the low strength portion being formed within a predetermined range from a center of said plug plate body, the groove having opposing walls extending from the groove bottom to a top of the groove at said one of said opposite surfaces in which the groove is formed, the groove having a width measured from one of said opposing walls to the other of said opposing walls in a direction parallel to one of said opposite surfaces, the width at the groove top being no less than the width at the groove bottom;
wherein a thickness T2, defining a thinnest one of the groove thicknesses from the bottom of the groove to the other of said opposite surfaces in which the groove is formed, ranges from 0.05 mm to 0.7 mm,
wherein the groove walls are inclined relative to one another at an angle θ measured from one opposing wall to the other of said opposing walls, the angle θ ranging from 0° to no more than 120°, and
wherein a ratio (L/T2) of the thickness L of said plug plate body to said thickness T2 is equal to or more than 2.

1 more element

A container for holding a material, the container comprising:

(a) a drain port;
and
(b) a plug of one chemical composition disposed in the drain port, the plug having a substantially flat frangible body plugging said drain port, the frangible body having opposite surfaces and a thickness L measured between the opposite surfaces from one said opposite surface to the other of said opposite surfaces, and a groove having one of a rectangular shape, a substantially trapezoidal shape and a substantially V-shape and formed transversely in one of said opposite surfaces, the groove having at least two different depths therein, one depth being a low strength portion wherein strength is decreased relative to the other depth of the groove by changing a thickness of the groove, the groove thickness being defined from a groove bottom to the other of said opposite surfaces in which the groove is formed, low strength portion being formed within a predetermined range from a center of said body, the groove having opposing walls extending from the groove bottom to a top of the groove at said one of said opposite surfaces in which is the groove is defined, the groove having a width measured from one of said opposing walls to the other of said opposing walls in a direction parallel to one of the opposite surfaces, the width at the top of the groove being no less than at the bottom of the groove;
wherein a thickness T2, defining a thinnest one of the groove thicknesses from the bottom of the groove to the other of said opposite surfaces in which the groove is formed, ranges from 0.05 mm to 0.7 mm;
the opposing groove walls being inclined relative to one another at an angle θ measured from one of said opposing walls to the other of said opposing walls, the angle θ ranging from 0° to no more than 120°;
and
wherein a ratio (L/T2) of the thickness L of said frangible body to said thickness T2 is equal to or more than 2.

4 more elements

Dependencies are inferred from the claim text.

Description11,538 words

Summary2,976 words

#1. Field of the Invention

#The present invention relates to a plugging member and a container, and more particularly to a plugging member which plugs a draining port for draining a material which is contained in a container, and the container. For example, the plugging member is used to plug a draining port of a photographic processing chemicals container which contains therein photographic processing chemicals.

#2. Description of the Related Art

Brief description of the drawings31 figures

#FIG. 1 is an exploded perspective view illustrating a packing according to a first embodiment of the present invention, a cap in which this packing is mounted, and a container to which the cap is attached.

#FIG. 2 is a cross sectional view illustrating a state in which the packing according to the first embodiment of the present invention is mounted-in the cap.

#FIG. 3 is a perspective view illustrating the packing according to the first embodiment of the present invention.

Detailed description7,704 words

#A packing 10, a cap 12 in which the packing 10 is mounted, and a photographic processing chemicals container 14 (a container for containing a photographic processing chemicals) to which this cap 12 is attached, according to a first embodiment of the present invention are shown in FIG. 1. Further, the cross section of the cap 12 to which the packing 10 is mounted, and the packing 10 are shown in FIGS. 2 and 3, respectively. The photographic processing chemicals container 14 which is shown in FIG. 1 contains therein photographic processing chemicals, and is an example of a container whose draining port 18 is plugged by the cap 12, in which the packing 10 is mounted, being attached thereto.

#The entire body of this photographic processing chemicals container 14 is formed in a substantially rectangular cylindrical shape, and a cylindrically-shaped portion 16 is formed at one end of the container 14 in the axial direction thereof (at the upper end in FIG. 1). One end of the cylindrical portion 16 is used as a draining port 18, and it is possible to drain the photographic processing chemicals which are contained in the photographic processing chemicals container 14 from this draining port 18.

#As shown in FIGS. 1 and 2, the cap 12 in which the packing 10 is mounted, comprises an attachment cylindrical portion 20 which is formed in a substantially cylindrical shape, and an anchoring cylindrical portion 22 which is formed integrally with one axial end of the attachment cylindrical portion 20 (at the upper end in FIG. 2) and whose diameter is smaller than the attachment cylindrical portion 20.

Facts

Application

10/443,769Filed 23 May 2003

Priority

JP 10-10578731 Mar 1998

Published

23 Oct 2003

Term ends

Not estimatedThe source records don’t support an estimate.

Classification4 codes

B65D 47/36
Closures with filling and discharging, or with discharging, devices: closures with frangible parts adapted to be pierced, torn or removed, to…
Y10S 220/19
Receptacles: rubber plugs and caps
B65D
Containers for storage or transport of articles or materials
Y10S
Technical subjects covered by former uspc cross-reference art collections [xracs] and digests

Timeline

31 Mar 1998Priority claimedJP 10-105787
23 May 2003Application filedUS 10/443,769
23 Oct 2003PublishedUS 2003/0042257 A1
12 Feb 2007Assigned to Fujifilm Holdings Corporationchange of name as shown by the attached certificate of partial closed records and the verified english translation thereof
19 Mar 2007Assigned to Fujifilm Corporationassignment of assignor's interest

Plugging member for a drain port having a portion with decreased thickness and container using the same

Life of this patent

Plugging member for a drain port having a portion with decreased thickness and container using the same

Life of this patent

Life of this patent

Abstract

Drawings

Drawings

Claims29

Description11,538 words

Drawings

Classification4 codes

Life of this patent

Description11,538 words