US4903842A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Container
Assignee: Sumitomo Bakelite Co Ltd
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Filing: 1988-09-22
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Granted: 1990-02-27
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Expires: 2008-09-22
Abstract
Abstract A container from which its contents can be readily taken out by a simple one-hand finger operation, is provided. The container comprises a lid and a container main body and is sealed at least at its peripheral flange. The container main body can be bent outwardly, and it comprises two contents-holding portions which are divided by the portion for bending and which are designed such that when the container main body is bent these two portions may be pressed by each other. The lid comprises at least a monoaxially oriented film. The lengthwise direction of the portion for bending coincides with the direction of orientation of the monoaxially oriented film. A non-sealed portion is provided at an edge portion of the peripheral flange coincident with at least one end of the portion for bending, and at least two slit lines for initiating tear are provided in a part of the lid which constitutes the non-sealed portion.
Inventors
- 👤 Koichi Tokuda
- 👤 Kazuo Yasuda
- 👤 Kazuhiro Yoshida
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 21:17
CPC Classifications
B; B32; B32B; B32B27/00; B32B27/06; B32B27/08; B32B3/00; B32B3/26; B32B3/30; B65; B65D; B65D1/00; B65D1/34; B65D1/36; B65D77/00; B65D77/10; B65D77/20; B65D77/2024; B65D77/2028; B65D77/2032; B65D77/2044; B65D77/2048; B65D77/2056; B65D81/00; B65D81/32; B65D81/3294; B32B2307/00; B32B2307/50; B32B2307/514; B32B2307/516; B32B2439/00; B32B2439/70; B65D2577/00; B65D2577/10; B65D2577/20; B65D2577/2025; B65D2577/2041; B65D2577/205; B65D2577/2066; B65D2577/2075; B65D2577/2091; Y; Y10; Y10S; Y10S229/00; Y10S229/927
Claims Analysis
Total Claims: 18
Claim 1
Independent Claim
138 words
A pack type container from which contents contained therein can be easily removed, comprising a lid and a main body, said lid and main body being sealed at least at a peripheral flange of the main body, said main body being bendable outwardly and divided by the portion for bending into two contents-holding portions designed such that they may be pressed together when the container main body is bent, said lid comprising at least one monoaxially oriented film whose direction of orientation coincides with the lengthwise direction of said portion for bending, wherein a non-sealed portion is provided at an edge portion of the flange corresponding to at least one end of said portion for bending, and at least two slit lines for initiating tear are provided in a part of the lid which constitutes said non-sealed portion.
Claim 2
Dependent Claim
138 words
A pack type container from which contents contained therein can be easily removed, comprising a lid and a main body, said lid and main body being sealed at least at a peripheral flange of the main body, said main body being bendable outwardly and divided by the portion for bending into two contents-holding portions designed such that they may be pressed together when the container main body is bent, said lid comprising at least one monoaxially oriented film whose direction of orientation coincides with the lengthwise direction of said portion for bending, wherein a non-sealed portion is provided at an edge portion of the flange corresponding to at least one end of said portion for bending, and at least two slit lines for initiating tear are provided in a part of the lid which constitutes said non-sealed portion.
Claim 3
Dependent Claim
65 words
A container according to claim 1, wherein the container is sealed only at the peripheral flange of the main body; said two contents-holding portions are in communication with each other through a space between the portion for bending of the main body and the lid; and two slit lines for initiating tear are provided in the part of the lid which constitutes said non-sealed portion.
Claim 4
Dependent Claim
44 words
A container according to claim 2, wherein the lid is composed of a multi-layer material containing at least one monoaxially oriented film, which consists of polyester/monoaxially oriented polyethylene/easy-to-peel sealing material, or polyvinylidene chloride-coated oriented polypropylene/monoaxially oriented polyethylene/easy-to-peel sealing material, or polyester/aluminum foil/monoaxially oriented polyethylene/polypropylene.
Claim 5
Dependent Claim
32 words
A container according to claim 1, wherein the main body is composed of a mono-layer or multi-layer material consisting of polypropylene, polyvinyl chloride, polystyrene, polypropylene/ethylene-vinyl acetate copolymer saponification product/polypropylene, or polypropylene/polyvinylidene chloride/polypropylene.
Claim 6
Dependent Claim
32 words
A container according to claim 2, wherein the main body is composed of a mono-layer or multi-layer material consisting of polypropylene, polyvinyl chloride, polystyrene, polypropylene/ethylene-vinyl acetate copolymer saponification product/polypropylene, or polypropylene/polyvinylidene chloride/polypropylene.
Claim 7
Dependent Claim
64 words
A container according to claim 1, wherein the main body is sealed with the lid at the portion for bending in addition to the peripheral flange, whereby the two content-holding portions are completely separated from each other to constitute two independent compartments; and the distance between the two slit lines is larger than the width of the sealed section of the portion for bending.
Claim 8
Dependent Claim
44 words
A container according to claim 6, wherein the lid is composed of a multi-layer material containing at least one monoaxially oriented film, which consists of polyester/monoaxially oriented polyethylene/easy-to-peel sealing material, or polyvinylidene chloride-coated oriented polypropylene/monoaxially oriented polyethylene/easy-to-peel sealing material, or polyester/aluminum foil/monoaxially oriented polyethylene/polypropylene.
Claim 9
Dependent Claim
32 words
A container according to claim 6, wherein the main body is composed of a mono-layer or multi-layer material consisting of polypropylene, polyvinyl chloride, polystyrene, polypropylene/ethylene-vinyl acetate copolymer saponification product/polypropylene, or polypropylene/polyvinylidene chloride/polypropylene.
Claim 10
Dependent Claim
93 words
A container according to claim 1, wherein the main body is sealed with the lid at the portion for bending in addition to the peripheral flange, whereby the two contents-holding portions are completely separated from each other to constitute two independent compartments; three slit lines comprising two outer slit lines and one inner slit line for initiating tear are provided in the part of the lid which constitutes said non-sealed portion; and the distance between the outer slit lines is larger than the width of the sealed section of the portion for bending.
Claim 11
Dependent Claim
44 words
A container according to claim 9, wherein the lid is composed of a multi-layer material containing at least one monoaxially oriented film, which consists of polyester/monoaxially oriented polyethylene/easy-to-peel sealing material, or polyvinylidene chloride-coated oriented polypropylene/monoaxially oriented polyethylene/easy-to-peel sealing material, or polyester/aluminum foil/monoaxially oriented polyethylene/polypropylene.
Claim 12
Dependent Claim
32 words
A container according to claim 9, wherein the main body is composed of a mono-layer or multi-layer material consisting of polypropylene, polyvinyl chloride, polystyrene, polypropylene/ethylene-vinyl acetate copolymer saponification product/polypropylene, or polypropylene/polyvinylidene chloride/polypropylene.
Claim 13
Dependent Claim
56 words
A container according to claim 9, wherein a cut groove or a line of perforations for separating the two compartments is provided along a line through the center of said container in the lengthwise direction of the portion for bending of the container main body, which corresponds to the extended line of the middle slit line.
Claim 14
Dependent Claim
44 words
A container according to claim 12, wherein the lid is composed of a multi-layer material containing at least one monoaxially oriented film, which consists of polyester/monoaxially oriented polyethylene/easy-to-peel sealing material, or polyvinylidene chloride-coated oriented polypropylene/monoaxially oriented polyethylene/easy-to-peel sealing material, or polyester/aluminum foil/monoaxially oriented polyethylene/polypropylene.
Claim 15
Dependent Claim
32 words
A container according to claim 12, wherein the main body is composed of a mono-layer or multi-layer material consisting of polypropylene, polyvinyl chloride, polystyrene, polypropylene/ethylene-vinyl acetate copolymer saponification product/polypropylene, or polypropylene/polyvinylidene chloride/polypropylene.
Claim 16
Dependent Claim
44 words
A container according to claim 1, wherein the lid is composed of a multi-layer material containing at least one monoaxially oriented film, which consists of polyester/monoaxially oriented polyethylene/easy-to-peel sealing material, or polyvinylidene chloride-coated oriented polypropylene/monoaxially oriented polyethylene/easy-to-peel sealing material, or polyester/aluminum foil/monoaxially oriented polyethylene/polypropylene.
Claim 17
Dependent Claim
154 words
A container according to claim 1, wherein the main body is sealed with the lid at the portion for bending in addition to the peripheral flange, whereby the two contents-holding portions are completely separated from each other to constitute two independent compartments; two non-sealed portions are provided at edge portions of the flange corresponding to both ends of said portion for bending and in contact with and at both sides of a line through the center of said container in the lengthwise direction of said portion for bending; two slit lines for initiating tear are provided in the part of the lid which constitutes each of said non-sealed portions, said slit lines being four in all; and the distance between the two slit lines not in contact with the center line in the lengthwise direction of said portion for bending is larger than the width of the sealed section of said portion for bending.
Claim 18
Dependent Claim
41 words
A container according to claim 16, wherein a cut groove or a line of perforations for cutting off the two compartments is provided along the center line in the lengthwise direction of the portion for bending of the container main body.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1993-02-26 | 1993-08-28 | 1994-02-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1997-02-26 | 1997-08-28 | 1998-02-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2001-02-26 | 2001-08-28 | 2002-02-27 | $7700.00 | Window Closed / Lapsed |