US3590557A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for closing packaging containers with elastically deformable walls
Assignee: FR Hesser Maschinenfabrik AG
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Filing: 1969-03-04
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Granted: 1971-07-06
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Expires: 1989-03-04
Abstract
Abstract Apparatus and method for automatically closing heat-sealable, liquid-filled, flexible-walled containers by means of a cover which is heat sealed to the container. Prior to sealing, container wall portions are depressed by push rolls to decrease the cubic volume of the container during the automatic heatsealing step.
Inventors
- 👤 Adolf Vogel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 16:22
CPC Classifications
B; B65; B65B; B65B3/00; B65B3/18; B65B7/00; B65B7/16; B65B7/28; B65B7/2842; B65B7/2878; B67; B67C; B67C3/00; B67C3/02; B67C3/22; B67C3/222; B67C3/223
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
86 words
In an apparatus for closing filled, flexible-walled containers each with a cover and heat sealing the same thereto; a heat-seal station; conveyor means for transporting filled containers to said heatseal station; container deforming means located proximate to said station and effective for varying the cubic volume of said container in response to actuation of the deforming means; and driving means connected to said deforming means and effective to temporarily force the deforming means against the flexible wall of the container to temporarily reduce the volume thereof.
Claim 2
Dependent Claim
86 words
In an apparatus for closing filled, flexible-walled containers each with a cover and heat sealing the same thereto; a heat-seal station; conveyor means for transporting filled containers to said heatseal station; container deforming means located proximate to said station and effective for varying the cubic volume of said container in response to actuation of the deforming means; and driving means connected to said deforming means and effective to temporarily force the deforming means against the flexible wall of the container to temporarily reduce the volume thereof.
Claim 3
Dependent Claim
40 words
Apparatus according to claim 1, wherein a plurality of container-deforming means are arranged on rotating means having a speed of rotation conforming to the speed of said conveyor means to effect that the deforming means engage, in sequence, a container.
Claim 4
Dependent Claim
16 words
Apparatus according to claim 2, wherein said rotating means forms a star having lengthwise adjustable arms.
Claim 5
Dependent Claim
20 words
Apparatus according to claim 3, wherein said deforming means are barrellike rolls, each rotatably mounted to one of said arms.
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) | 1974-07-05 | 1975-01-04 | 1975-07-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-07-05 | 1979-01-04 | 1979-07-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-07-05 | 1983-01-04 | 1983-07-06 | $7700.00 | Window Closed / Lapsed |