US4397391A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Feed unit for a detergent and packaging thereof
Assignee: Akzo NV
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Filing: 1981-04-27
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Granted: 1983-08-09
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Expires: 2001-04-27
Abstract
Abstract The invention relates to an imposed means of ensuring that the sealing edge(s) of a flat, for instance rectangular, detergent-containing sachets is (are) kept closed. The sealing edge is of the type which is sealed with such a glue that it opens in the water of the washing machine at a temperature above room temperature. The improved means consists in that said sealing edges of the sachets may be bent as they are packaged in a box, as a result of which premature opening of the sachets is prevented during transport or after they have been introduced into the washing machine.
Inventors
- 👤 Emery G. P. Cornelissens
- 👤 Gerardus J. W. H. Gudden
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 07:58
CPC Classifications
C; C11; C11D; C11D17/00; C11D17/04; C11D17/041; B; B65; B65D; B65D33/00; B65D33/16; B65D33/30; B65D75/00; B65D75/28; B65D75/30; B65D77/00; B65D77/04; B65D77/06; B65D77/062
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
99 words
A container for detergent, preferably a box, having at least two parallel walls, characterized in that the box comprises a substantial number of stacked detergent feed units that are each in the form preferably of a substantially flat, rectangular sachet, having one or more compartments containing detergent constituents, at least one edge of a compartment being sealed with a glue or other adhesive, which edge opens after a while upon contact with water in a washing machine, said sachets being so packaged in the box that the sealing edges thereof are bent by said parallel walls of the box.
Claim 2
Dependent Claim
99 words
A container for detergent, preferably a box, having at least two parallel walls, characterized in that the box comprises a substantial number of stacked detergent feed units that are each in the form preferably of a substantially flat, rectangular sachet, having one or more compartments containing detergent constituents, at least one edge of a compartment being sealed with a glue or other adhesive, which edge opens after a while upon contact with water in a washing machine, said sachets being so packaged in the box that the sealing edges thereof are bent by said parallel walls of the box.
Claim 3
Dependent Claim
35 words
A container according to claim 1, characterized in that one compartment is provided with one or more special seals such that they open in water of a washing machine at a temperature above room temperature.
Claim 4
Dependent Claim
38 words
A container according to claim 1, characterized in that the special seal is so constructed and arranged that it opens in water of a washing machine at a temperature in the range of from 30° to 60° C.
Claim 5
Dependent Claim
42 words
A container according to claim 1, characterized in that the distance between two opposite parallel box walls is at least 5 to 15 mm smaller than the dimension transverse to the longitudinal direction of said special sealing edge of said flat sachets.
Claim 6
Dependent Claim
86 words
A container according to claim 3, characterized in that each sachet comprises at least two compartments, one compartment having a water-permeable, water-soluble or water-dispersible outer wall and containing acid, and another compartment containing an alkaline detergent based on alkali metal carbonate, at least one edge of the compartment containing said alkaline detergent forming a sealing edge which is sealed with a glue or other adhesive, and which is so temperature-sensitive that this compartment opens at a temperature in the range of from 30° to 60° C.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1986-08-08 | 1987-02-07 | 1987-08-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1990-08-08 | 1991-02-07 | 1991-08-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1994-08-08 | 1995-02-07 | 1995-08-09 | $7700.00 | Window Closed / Lapsed |