Patent US4136141A successfully refreshed from Google Patents.
US4136141A
Expired / Lapsed
US
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Method of cushioning commodities in containers with foamed in place cellular plastic material
Assignee: Klein Schanzlin and Becker AG
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Filing: 1977-04-06
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Granted: 1979-01-23
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Expires: 1997-04-06
Abstract
Abstract A commodity to be packaged in a carton, box or another type of container is foamed in place while being held by distancing elements which extend into the interior of the container. The distancing elements are retracted upon completion of the foaming step, either through the open top or through openings in the top, bottom and/or side walls of the container.
Inventors
- 👤 Udo Bauer
- 👤 Jurgen Nothdurft
- 👤 Willi Langer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 21:12
CPC Classifications
B; B65; B65B; B65B55/00; B65B55/20; B29; B29C; B29C44/00; B29C44/02; B29C44/12; B29C44/18; B29C44/182; B29C44/184; B29K; B29K2023/00; B29K2023/04; B29K2023/06; B29K2025/00; B29K2025/04; B29K2025/06; B29K2075/00; B29K2083/00; B29L; B29L2031/00; B29L2031/712; B29L2031/7138; Y; Y10; Y10S; Y10S220/00; Y10S220/902; Y10S220/918; Y10S220/92
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
137 words
A method of cushioning commodities in cartons, boxes or analogous prefabricated containers, comprising the steps of introducing a commodity into an empty prefabricated container; supporting the commodity from the outside of the container by at least one distancing element which extends into the container to maintain the commodity in a position in which at least a substantial portion of the external surface of the commodity is spaced apart from the internal surface of the container; introducing the foamable constituents of a cellular plastic material between said surfaces; foaming the thus introduced constituents in place so that the resulting cushion at least substantially fills the space between said surfaces; and terminating said supporting step when the cushion is sufficiently stable to maintain the commodity in said position, said terminating step including withdrawing the distancing element from the container.
Claim 2
Independent Claim
137 words
A method of cushioning commodities in cartons, boxes or analogous prefabricated containers, comprising the steps of introducing a commodity into an empty prefabricated container; supporting the commodity from the outside of the container by at least one distancing element which extends into the container to maintain the commodity in a position in which at least a substantial portion of the external surface of the commodity is spaced apart from the internal surface of the container; introducing the foamable constituents of a cellular plastic material between said surfaces; foaming the thus introduced constituents in place so that the resulting cushion at least substantially fills the space between said surfaces; and terminating said supporting step when the cushion is sufficiently stable to maintain the commodity in said position, said terminating step including withdrawing the distancing element from the container.
Claim 3
Dependent Claim
22 words
A method as defined in claim 1, wherein said supporting step includes maintaining the commodity in suspended position on the distancing element.
Claim 4
Dependent Claim
59 words
A method as defined in claim 1, wherein each prefabricated container has a bottom wall with at least one opening therein and said supporting step includes propping the commodity from below, said propping step comprising inserting the distancing element into the container through the opening in the bottom wall and placing the commodity onto the thus inserted distancing element.
Claim 5
Dependent Claim
42 words
A method as defined in claim 1, further comprising the step of placing a deformable envelope into said space, introducing said constituents into the envelope, sealing the envelope, and draping the envelope around the commodity prior to completion of said foaming step.
Claim 6
Dependent Claim
22 words
A method as defined in claim 1, further comprising the step of closing the container prior to completion of said foaming step.
Claim 7
Dependent Claim
47 words
A method as defined in claim 1, wherein each prefabricated container has at least one opening and said supporting step comprises maintaining the commodity in the interior of the container in contact with said distancing element while the distancing element extends through the opening of the container.
Claim 8
Dependent Claim
25 words
A method as defined in claim 4, wherein said containers include side walls and said openings are provided in the side walls of the containers.
Claim 9
Dependent Claim
46 words
A method as defined in claim 4, wherein each container has an open top and a closure for said open top, said openings being provided in said closures and each closure overlying the open top of the respective container in the course of said foaming step.
Claim 10
Independent Claim
162 words
A method of cushioning commodities in cartons, boxes or analogous containers of the type having at least one opening, comprising the steps of introducing a commodity into an empty container; supporting the commodity from the outside of the container in a position in which at least a substantial portion of the external surface of the commodity is spaced apart from the internal surface of the container, said supporting step comprising inserting at least one distancing element into and through said opening of the container so that the distancing element extends into the container; introducing the foamable constituents of a cellular plastic material between said surfaces; foaming the thus introduced constituents in place so that the resulting cushion at least substantially fills the space between said surfaces; maintaining the commodity in contact with the distancing element in the course of said introducing and foaming steps; and terminating said supporting step when the cushion is sufficiently stable to maintain the commodity in said position.
Claim 11
Independent Claim
162 words
A method of cushioning commodities in cartons, boxes or analogous containers of the type having at least one opening, comprising the steps of introducing a commodity into an empty container; supporting the commodity from the outside of the container in a position in which at least a substantial portion of the external surface of the commodity is spaced apart from the internal surface of the container, said supporting step comprising inserting at least one distancing element into and through said opening of the container so that the distancing element extends into the container; introducing the foamable constituents of a cellular plastic material between said surfaces; foaming the thus introduced constituents in place so that the resulting cushion at least substantially fills the space between said surfaces; maintaining the commodity in contact with the distancing element in the course of said introducing and foaming steps; and terminating said supporting step when the cushion is sufficiently stable to maintain the commodity in said position.
Claim 12
Dependent Claim
26 words
A method as defined in claim 9, wherein at least one of said inserting and terminating steps includes moving the distancing element relative to the container.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1982-01-22 | 1982-07-24 | 1983-01-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1986-01-22 | 1986-07-24 | 1987-01-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1990-01-22 | 1990-07-24 | 1991-01-23 | $7700.00 | Window Closed / Lapsed |