US3785111A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of forming containers and packages
Assignee: PALOS VERDES PENINSULA
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Filing: 1972-02-04
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Granted: 1974-01-15
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Expires: 1992-02-04
Abstract
Abstract This disclosure relates to a method of forming containers and packages wherein either an unfilled container or a partially filled package may be formed. The method basically relates to the forming of a container or package having two faces from web material wherein the web material is formed into a tubular container with the two walls closed transversely at the bottom end and open at the top end, and a wide seam joins together double overlapping thicknesses of the web material to form a filling passage between the double thicknesses with the seam extending across the full width of the overlapping thicknesses and through which filling passage a substance or an additional substance can be added to the interior of the package, the entire filling passage being positioned within the wall of one package face which under pressure from contents within the package curves outwardly to hold the passage walls in mutual contact preventing the exit of the contents of the package through the passage and in the case of a partially formed package, introducing a first substance into the tubular container through the remaining open upper end of the tube walls, and thereafter placing a closing seal across the top end of the container.
Inventors
- 👤 B Pike
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 09:36
CPC Classifications
B; B65; B65B; B65B51/00; B65B51/10; B65B51/26; B65B61/00; B65B61/18; B65B9/00; B65B9/10; B65B9/20; B65B9/2056
Claims Analysis
Total Claims: 27
Claim 1
Independent Claim
199 words
The method of forming a valved package from continuous flexible web material and partially filling it with a first substance and closing it, said package having two faces, that comprises the steps of: forming said web material into a tubular container with the tube walls closed transversely at the bottom end and open at the top end, and a wide seam joining double overlapping thicknesses of said web material, sealing together said overlapped thicknesses along said seam and forming a filling passage of predetermined size and shape between said thicknesses and extending across the full width of said overlapping thicknesses and through which an additional substance can be added to the interior of the package by maintaining selected areas of said overlapped thicknesses along said seam in an unsealed relationship, positioning the entire filling passage within the wall of said one package face which when under pressure from the package contents curves outwardly to hold the passage walls in mutual contact preventing the exit of the contents through said passage, introducing said first substance into the tubular container through said open end of said tube walls, and placing a package closing seal across said top end of the container.
Claim 2
Independent Claim
199 words
The method of forming a valved package from continuous flexible web material and partially filling it with a first substance and closing it, said package having two faces, that comprises the steps of: forming said web material into a tubular container with the tube walls closed transversely at the bottom end and open at the top end, and a wide seam joining double overlapping thicknesses of said web material, sealing together said overlapped thicknesses along said seam and forming a filling passage of predetermined size and shape between said thicknesses and extending across the full width of said overlapping thicknesses and through which an additional substance can be added to the interior of the package by maintaining selected areas of said overlapped thicknesses along said seam in an unsealed relationship, positioning the entire filling passage within the wall of said one package face which when under pressure from the package contents curves outwardly to hold the passage walls in mutual contact preventing the exit of the contents through said passage, introducing said first substance into the tubular container through said open end of said tube walls, and placing a package closing seal across said top end of the container.
Claim 3
Dependent Claim
38 words
The method of making a partially filled package as in claim 1 that includes the further step of positioning fill level identifying means on said package for visually indicating the volume of said second substance to be added.
Claim 4
Dependent Claim
47 words
The method of making a partially filled package as in claim 1 in which one edge of said package comprises a fold and said method includes forming said filling passage with an open end adjacent to said folded edge and the other end open to the interior.
Claim 5
Dependent Claim
47 words
The method of making a partially filled package as in claim 1 in which one edge of said package comprises a seal and said method includes forming the filling passage with an open end adjacent to said sealed edge and the other end open to the interior.
Claim 6
Dependent Claim
24 words
The method of making a partially filled package as in claim 1 together with the forming of a ruptureable closure across said filling passage.
Claim 7
Dependent Claim
30 words
The method of making a partially filled package as in claim 5 wherein the seal of said ruptureable closure is one that can be opened without rupturing the passage walls.
Claim 8
Dependent Claim
35 words
The method of making a partially filled package as in claim 1 that includes the further step of forming an exit channel of predetermined size and location through which the package contents can be expelled.
Claim 9
Independent Claim
126 words
The method of making and filling a valved package that comprises the steps of: wrapping continuous flexible web material around a mandrel to form a tube with a wide overlapping seam extending axially of the mandrel, sealing together the overlapped portions of said web along said seam to form a seal while maintaining selected areas of said portions unsealed to thereby defined a filing passage of predetermined size and shape extending across the area and through which a fluent material can be added to the interior of the passage, closing the lower end of the wrapping below the mandrel with a transverse seal, introducing a quantity of product into the package through said mandrel, and placing a transverse seal above the level of product previously introduced.
Claim 10
Independent Claim
126 words
The method of making and filling a valved package that comprises the steps of: wrapping continuous flexible web material around a mandrel to form a tube with a wide overlapping seam extending axially of the mandrel, sealing together the overlapped portions of said web along said seam to form a seal while maintaining selected areas of said portions unsealed to thereby defined a filing passage of predetermined size and shape extending across the area and through which a fluent material can be added to the interior of the passage, closing the lower end of the wrapping below the mandrel with a transverse seal, introducing a quantity of product into the package through said mandrel, and placing a transverse seal above the level of product previously introduced.
Claim 11
Dependent Claim
30 words
The method of making and filling a valved package according to claim 8, in which the filling passage is centrally located between and extends generally parallel to said transverse seals.
Claim 12
Dependent Claim
34 words
The method of making and filling a valved package according to claim 8, in which an outwardly convex curvature of the package produced by the contents therein holds the passage walls in mutual contact.
Claim 13
Independent Claim
85 words
A method of forming a container comprising the steps of providing a flat pliable web in strip form, wrapping said web around a mandrel with edge portions of said web being disposed in overlapping relation, sealing together said overlapping edge portions to form a tube, forming predefined valved passages at container intervals directly between said overlapped edge portions by maintaining selected areas of said overlapped portions in an unsealed relationship, and severing said tube at container intervals in a predetermined relation to said valved passages.
Claim 14
Independent Claim
85 words
A method of forming a container comprising the steps of providing a flat pliable web in strip form, wrapping said web around a mandrel with edge portions of said web being disposed in overlapping relation, sealing together said overlapping edge portions to form a tube, forming predefined valved passages at container intervals directly between said overlapped edge portions by maintaining selected areas of said overlapped portions in an unsealed relationship, and severing said tube at container intervals in a predetermined relation to said valved passages.
Claim 15
Dependent Claim
30 words
The method of claim 11 wherein said tube is advanced in a step-by-step manner and said sealing together of said overlapped edge portions is also effected in a step-by-step manner.
Claim 16
Dependent Claim
39 words
The method of claim 11 wherein said tube is advanced in a step-by-step manner and said sealing together of said overlapped edge portions is also effected in a step-by-step manner in timed relation to the advancing of said tube.
Claim 17
Dependent Claim
30 words
The method of claim 11 wherein said sealing together of said overlapped edge portions is effected utilizing said mandrel as a back-up member in cooperation with an external sealing mechanism.
Claim 18
Dependent Claim
31 words
The method of claim 11 wherein prior to severing said tube, said tube is first flattened and transversely sealed to form both a temporary tube bottom and a sealed container edge.
Claim 19
Dependent Claim
31 words
The method of claim 15 wherein prior to severing said tube, said tube is further flattened and transversely sealed to form both a closed container and an additional sealed container edge.
Claim 20
Dependent Claim
38 words
The method of claim 16 wherein prior to said further flattening and transverse sealing, a product is deposited into said tube with downward flow of the product in the tube being limited by the then temporary tube bottom.
Claim 21
Dependent Claim
16 words
The method of claim 17 wherein the product is deposited into said tube through tHe mandrel.
Claim 22
Dependent Claim
19 words
The method of claim 11 together with the forming of a rupturable seal across and closing said valved passage.
Claim 23
Dependent Claim
19 words
The method of claim 19 wherein said rupturable seal is formed simultaneously with said forming of said valved passage.
Claim 24
Dependent Claim
62 words
The method of claim 11 wherein prior to severing said tube, said tube is first flattened and transversely sealed to form both a temporary tube bottom and a sealed container edge, said overlapped edge portions being oriented relative to said tube flattening and transverse sealing with said sealed together overlapping edge portions being disposed along one side edge of the flattened tube.
Claim 25
Dependent Claim
21 words
The method of claim 11 wherein said valved passages are formed simultaneously with said sealing together of said overlapping edge portions.
Claim 26
Dependent Claim
45 words
The method of claim 1 wherein one edge of said package is defined by a fold adjacent a free edge of said web material, and said free edge is disposed innermost providing a direct access into the interior of the package through said filling passage.
Claim 27
Dependent Claim
45 words
The method of claim 8 wherein one edge of said package is defined by a fold adjacent a free edge of said web material, and said free edge is disposed innermost providing a direct access into the interior of the package through said filling passage.
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) | 1977-01-14 | 1977-07-16 | 1978-01-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-01-14 | 1981-07-16 | 1982-01-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-01-14 | 1985-07-16 | 1986-01-15 | $7700.00 | Window Closed / Lapsed |