US3589411A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Filling apparatus
Assignee: Individual
•
Filing: 1968-01-26
•
Granted: 1971-06-29
•
Expires: 1988-01-26
Abstract
Abstract Flexible containers are provided in a flat state to a filler and units of pulverulent material having a substantial portion of entrained gases removed therefrom are deposited into the container with the container progressively opening as it is being filled whereby, for all practical purposes, only a minimum amount of air may be added to the compacted pulverulent material delivered into the container. Rollers may be provided for engaging opposite surfaces of the container so as to hold the same closed beneath the material being placed therein and to progressively permit the opening of the container as it is being filled. Special means, including adapter frames, are provided for clamping the mouth of a container in sealed relation to the filler. Also, in order to provide accurate weights within each filled container, weighing mechanisms may be provided in advance of the filler, the weighing mechanism operating alternately whereby while a new charge is being weighed, a previously weighed charge is being directed into a container by the filling mechanism.
Inventors
- 👤 Clarence W Vogt
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 10:02
CPC Classifications
B; B65; B65B; B65B1/00; B65B1/20; B65B1/26
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
143 words
A filler particularly adapted for filling flexible containers including bags, said filler comprising a filling head including a housing, an impeller mounted within said housing for continuous rotation about a horizontal axis during a bag-filling operation, said impeller having a plurality of circumferentially adjacent transfer pockets, said impeller and said housing having cooperating pneumatic pressure differential means for removing entrained gases from and releaseably compacting pulverulent materials in said transfer pockets, and securing means on the underside of said housing for clamping a mouth portion of a flexible container to said housing in sealed relation, said filler being particularly adapted for filling collapsible containers while collapsed, and said filler including container engaging means for retaining a container in collapsed position and facilitating the gradual opening thereof starting at the container mouth as a container is being filled whereby a compacted fill is effected.
Claim 2
Dependent Claim
143 words
A filler particularly adapted for filling flexible containers including bags, said filler comprising a filling head including a housing, an impeller mounted within said housing for continuous rotation about a horizontal axis during a bag-filling operation, said impeller having a plurality of circumferentially adjacent transfer pockets, said impeller and said housing having cooperating pneumatic pressure differential means for removing entrained gases from and releaseably compacting pulverulent materials in said transfer pockets, and securing means on the underside of said housing for clamping a mouth portion of a flexible container to said housing in sealed relation, said filler being particularly adapted for filling collapsible containers while collapsed, and said filler including container engaging means for retaining a container in collapsed position and facilitating the gradual opening thereof starting at the container mouth as a container is being filled whereby a compacted fill is effected.
Claim 3
Dependent Claim
131 words
A filler particularly adapted for filling flexible containers including bags, said filler comprising a filling head including a housing, an impeller mounted within said housing for continuous rotation about a horizontal axis during a bag-filling operation, said impeller having a plurality of circumferentially adjacent transfer pockeTs, said impeller and said housing having cooperating pneumatic pressure differential means for removing entrained gases from and releaseably compacting pulverulent materials in said transfer pockets, and securing means on the underside of said housing for clamping a mouth portion of a flexible container to said housing in sealed relation, said filler being particularly adapted for filling collapsible containers while collapsed, and said filler including container-engaging means for retaining a container in collapsed position and facilitating the gradual opening thereof as a container is being filled.
Claim 4
Dependent Claim
131 words
A filler particularly adapted for filling flexible containers including bags, said filler comprising a filling head including a housing, an impeller mounted within said housing for continuous rotation about a horizontal axis during a bag-filling operation, said impeller having a plurality of circumferentially adjacent transfer pockeTs, said impeller and said housing having cooperating pneumatic pressure differential means for removing entrained gases from and releaseably compacting pulverulent materials in said transfer pockets, and securing means on the underside of said housing for clamping a mouth portion of a flexible container to said housing in sealed relation, said filler being particularly adapted for filling collapsible containers while collapsed, and said filler including container-engaging means for retaining a container in collapsed position and facilitating the gradual opening thereof as a container is being filled.
Claim 5
Dependent Claim
49 words
The filler of claim 2 wherein said container-engaging means includes a pair of rollers adapted to clamp a container secured to said housing adjacent the mouth of such container, and means for gradually moving said rollers towards a closed end of such container as the container is being filled.
Claim 6
Dependent Claim
23 words
The filler of claim 3 wherein said rollers have means for facilitating the escape of air trapped within a container below said rollers.
Claim 7
Dependent Claim
24 words
The filler of claim 3 wherein means are provided for separating and bringing together said rollers in timed relation to the filling of containers.
References Cited (Backward Citations)
US3097459A
Cited
US789085A
Cited
US1016498A
Cited
US1940826A
Cited
US2322090A
Cited
US2540059A
Cited
US2907499A
Cited
US3140735A
Cited
US3245200A
Cited
US3339595A
Cited
US3384134A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-06-28 | 1974-12-28 | 1975-06-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-06-28 | 1978-12-28 | 1979-06-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-06-28 | 1982-12-28 | 1983-06-29 | $7700.00 | Window Closed / Lapsed |