Patent US4394943A successfully refreshed from Google Patents.
US4394943A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Tilting trap chamber
Assignee: Individual
•
Filing: 1982-01-18
•
Granted: 1983-07-26
•
Expires: 2002-01-18
Abstract
Abstract The invention relates to a package for powdered material, from which package it is possible to discharge equally large predetermined measured amounts of the material, irrespective of the amount remaining in the package. This is possible in that the package is provided with guide surfaces 1,2,3, at one end, which surfaces form a space, which by a gap (8) is separated from the main space of the package and which upon turning of the package from upside down position to upright position is filled with the intended accurate amount of material, which material is discharged through the opening (5) at repeated turning to upside down position.
Inventors
- 👤 Goran Sjonell
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 16:46
CPC Classifications
B; B65; B65D; B65D25/00; B65D25/38; B65D25/52
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
214 words
A container for dispensing measured amounts of a powdered material comprising a top wall, a bottom wall and sidewalls connecting said top and bottom walls, said top wall being provided with a discharge opening, a partition being disposed adjacent said discharge opening and extending downwardly from the bottom surface of said top wall, a first inclined wall extending upwardly from the sidewall below said discharge opening, said first inclined wall having one end attached to said sidewall and the other end being free and extending upwardly beyond said partition below the bottom surface of said top wall, and a second inclined wall extending downwardly from said bottom surface of the top wall towards the sidewall opposite to said first inclined wall, openings being provided between said first and second inclined walls, between said free end of said first inclined wall and said bottom surface of said top wall, and between the lower end of said partition and said first inclined wall form a flowpath for said powdered material, and said second inclined wall preventing the presence of a column of the powdered material above the opening between said free end of said first inclined wall and said bottom surface of said top wall when said container is tilted during dispensing of said powdered material.
Claim 2
Dependent Claim
214 words
A container for dispensing measured amounts of a powdered material comprising a top wall, a bottom wall and sidewalls connecting said top and bottom walls, said top wall being provided with a discharge opening, a partition being disposed adjacent said discharge opening and extending downwardly from the bottom surface of said top wall, a first inclined wall extending upwardly from the sidewall below said discharge opening, said first inclined wall having one end attached to said sidewall and the other end being free and extending upwardly beyond said partition below the bottom surface of said top wall, and a second inclined wall extending downwardly from said bottom surface of the top wall towards the sidewall opposite to said first inclined wall, openings being provided between said first and second inclined walls, between said free end of said first inclined wall and said bottom surface of said top wall, and between the lower end of said partition and said first inclined wall form a flowpath for said powdered material, and said second inclined wall preventing the presence of a column of the powdered material above the opening between said free end of said first inclined wall and said bottom surface of said top wall when said container is tilted during dispensing of said powdered material.
Claim 3
Dependent Claim
44 words
The container of claim 1 wherein said first inclined wall is provided with a bend located below said partition, with the portion of said first inclined wall attached to the sidewall being less steeply inclined upward then the remaining portion of said inclined wall.
Claim 4
Dependent Claim
22 words
The container of claim 1 wherein a cover for said discharge opening is provided, said cover being connected to said top wall.
Claim 5
Dependent Claim
26 words
The container of claim 1 wherein the free end of said first inclined wall extends upwardly to an elevation above the lower end of said partition.
Claim 6
Independent Claim
216 words
A device for dispensing measured amounts of a powdered material from a container comprising a top wall and sidewalls extending from the bottom surface of said top wall, a discharge opening disposed in the top wall, a partition disposed adjacent said discharge opening and extending downwardly from said bottom surface of the top wall, a first inclined wall extending upwardly from the sidewall below the discharge opening, said first inclined wall having one end attached to said sidewall and the other end being free and extending upwardly beyond said partition and below said bottom surface of the top wall, and a second inclined wall extending downwardly from said bottom surface of the top wall towards the sidewall opposite to said first inclined wall, openings being provided between said first and second inclined walls, between said free end of said first inclined wall and said bottom surface of said top wall, and between the lower end of said partition and said first inclined wall to form a flowpath for said powdered material, said second inclined wall preventing the presence of a column of the powdered material above the opening between said free end of said first inclined wall and said bottom surface of said top wall when said container is tilted during dispensing of said powdered material.
Claim 7
Independent Claim
216 words
A device for dispensing measured amounts of a powdered material from a container comprising a top wall and sidewalls extending from the bottom surface of said top wall, a discharge opening disposed in the top wall, a partition disposed adjacent said discharge opening and extending downwardly from said bottom surface of the top wall, a first inclined wall extending upwardly from the sidewall below the discharge opening, said first inclined wall having one end attached to said sidewall and the other end being free and extending upwardly beyond said partition and below said bottom surface of the top wall, and a second inclined wall extending downwardly from said bottom surface of the top wall towards the sidewall opposite to said first inclined wall, openings being provided between said first and second inclined walls, between said free end of said first inclined wall and said bottom surface of said top wall, and between the lower end of said partition and said first inclined wall to form a flowpath for said powdered material, said second inclined wall preventing the presence of a column of the powdered material above the opening between said free end of said first inclined wall and said bottom surface of said top wall when said container is tilted during dispensing of said powdered material.
Claim 8
Dependent Claim
44 words
The device of claim 5 wherein said first inclined wall is provided with a bend located below said partition, with the portion of said first inclined wall attached to the sidewall being less steeply inclined upward than the remaining portion of said inclined wall.
Claim 9
Dependent Claim
22 words
The device of claim 5 wherein a cover for said discharge opening is provided, said cover being connected to said top wall.
Claim 10
Dependent Claim
26 words
The device of claim 5 wherein the free end of said first inclined wall extends upwardly to an elevation above the lower end of said partition.
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) | 1986-07-25 | 1987-01-24 | 1987-07-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1990-07-25 | 1991-01-24 | 1991-07-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1994-07-25 | 1995-01-24 | 1995-07-26 | $7700.00 | Window Closed / Lapsed |