Patent US4356853A successfully refreshed from Google Patents.
US4356853A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Bag
Assignee: Toyama Industry Co Ltd
•
Filing: 1980-03-19
•
Granted: 1982-11-02
•
Expires: 2000-03-19
Abstract
Abstract A bag for free flowing powders or granules has a cylindrical body portion of a bag proper, top and bottom end portion which close top and bottom openings of the bag proper, and a cylindrical filling portion formed on the top end portion. Top edges of the cylindrical bag proper are sewn along a line passing through a point of a central axis of the cylindrical filling portion. The above-mentioned bag is made from a sheet-like cloth or a tube fabric.
Inventors
- 👤 Keiji Sekiguchi
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 11:31
CPC Classifications
B; B65; B65D; B65D88/00; B65D88/16; B65D88/1612; B65D88/1675; B65D88/1681; Y; Y10; Y10S; Y10S383/00; Y10S383/904
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
158 words
In a bag for use in storing and transporting a bulk material, having a cylindrical body portion with an axis, a bottom end portion which closes the bottom opening of said cylindrical body, a top end portion having an opening for filling the bag in the central portion of said top end portion about the axis, a plurality of handling slings sewn to said bag body at predetermined positions adjacent to said top end portion the improvement which comprises; a top end portion formed integrally with said cylindrical body portion, having a cylindrical portion for filling the bag having an opening smaller than the cylindrical body portion and sutured by a seam formed along a plane of the axis of said cylindrical body portion wherein said cylindrical body portion is provided with a pair of selvages formed at both end portions of said seam for said top end portion, said selvages folded inwardly and sewn to said seam.
Claim 2
Dependent Claim
158 words
In a bag for use in storing and transporting a bulk material, having a cylindrical body portion with an axis, a bottom end portion which closes the bottom opening of said cylindrical body, a top end portion having an opening for filling the bag in the central portion of said top end portion about the axis, a plurality of handling slings sewn to said bag body at predetermined positions adjacent to said top end portion the improvement which comprises; a top end portion formed integrally with said cylindrical body portion, having a cylindrical portion for filling the bag having an opening smaller than the cylindrical body portion and sutured by a seam formed along a plane of the axis of said cylindrical body portion wherein said cylindrical body portion is provided with a pair of selvages formed at both end portions of said seam for said top end portion, said selvages folded inwardly and sewn to said seam.
Claim 3
Dependent Claim
76 words
A bag according to claim 1, wherein the number of said hanging slings is four and two of said hanging slings are each sewn to said bag proper at a respective position adjacent to a corresponding one of said selvages, while the other two hanging slings are sewn to said bag proper at the respective central positions between said selvages, said central positions being symmetrical with respect to said seam for closing said top end portion.
References Cited (Backward Citations)
US2504124A
Cited
US2602482A
Cited
US2730150A
Cited
US2808091A
Cited
US3604491A
Cited
US4010784A
Cited
US3961655A
Cited
US4143796A
Cited
US4221250A
Cited
US4211266A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1985-11-01 | 1986-05-03 | 1986-11-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1989-11-01 | 1990-05-03 | 1990-11-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1993-11-01 | 1994-05-03 | 1994-11-02 | $7700.00 | Window Closed / Lapsed |