US3791266A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method and apparatus for manufacturing toilet paper rolls
Assignee: Individual
•
Filing: 1973-02-20
•
Granted: 1974-02-12
•
Expires: 1993-02-20
Abstract
Abstract A roll of toilet paper which has web portions where the web is folded upon itself and provided with an inner film of cleansing composition and an outer barrier layer so that the film of cleansing composition cannot be spread through the convolutions of the roll while at the same time the folded web portions will become unfolded during unwinding of the roll to expose the cleansing composition. After the film of cleansing composition and barrier layer are respectively deposited at opposite faces of the web at preselected areas therealong the web is folded upon itself at the areas where the film of cleansing composition is located and then the film of cleansing composition at each folded web portion is frozen to retain each web portion in its folded condition during winding of the web into a roll.
Inventors
- 👤 B Bucalo
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 17:53
CPC Classifications
B; B31; B31D; B31D1/00; B31D1/04; Y; Y10; Y10S; Y10S493/00; Y10S493/937; Y10T; Y10T156/00; Y10T156/10; Y10T156/1002; Y10T156/1007; Y10T156/1015
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
196 words
In a method of manufacturing a roll of toilet paper, the steps of conveying a web of paper along a predetermined path, depositing a film of cleansing composition onto one face of said web at predetermined areas distributed therealong when each of said areas is located at a predetermined part of said path, depositing barrier layers on the opposite face of said web at predetermined areas thereof which coincide with said predetermined areas where said film of cleansing composition is located, said steps of depositing said film of cleansing composition and said barrier layer being carried out in any sequence of simultaneously, folding said web upon itself at said areas where said film of cleansing composition is located to enclose the film between the barrier layer at each of said predetermined areas where the film and barrier layer are located, and winding the web into a roll while said areas where said film of cleansing composition is located are maintained folded upon themselves, so that the enclosed films of cleansing compositions are held in the roll by the convolutions thereof in folded condition prevented from spreading through the convolutions of the roll by the barrier layers.
Claim 2
Dependent Claim
196 words
In a method of manufacturing a roll of toilet paper, the steps of conveying a web of paper along a predetermined path, depositing a film of cleansing composition onto one face of said web at predetermined areas distributed therealong when each of said areas is located at a predetermined part of said path, depositing barrier layers on the opposite face of said web at predetermined areas thereof which coincide with said predetermined areas where said film of cleansing composition is located, said steps of depositing said film of cleansing composition and said barrier layer being carried out in any sequence of simultaneously, folding said web upon itself at said areas where said film of cleansing composition is located to enclose the film between the barrier layer at each of said predetermined areas where the film and barrier layer are located, and winding the web into a roll while said areas where said film of cleansing composition is located are maintained folded upon themselves, so that the enclosed films of cleansing compositions are held in the roll by the convolutions thereof in folded condition prevented from spreading through the convolutions of the roll by the barrier layers.
Claim 3
Dependent Claim
39 words
In a method as recited in claim 1 and wherein said web is continuously conveyed while the other steps are performed so that all of said other steps are performed without an interruption in the movement of the web.
Claim 4
Dependent Claim
80 words
In a method as recited in claim 1 and including the step of freezing the film of cleansing composition at each of said predetermined areas where said film is located immediately subsequent to the folding of each of the latter areas upon itself, so that the freezing of the film of cleansing composition will retain the predetermined area of each web where a film of cleansing composition is located in foLded condition during winding of the web into a roll.
Claim 5
Dependent Claim
150 words
In an apparatus for manufacturing a roll of toilet paper, conveyor means for conveying a web of paper along a predetermined path, means situated along said path for depositing at predetermined areas of said web on one face thereof a film of cleansing composition, means located adjacent said path for depositing at an opposite face of said web at areas coinciding with said predetermined areas a barrier layer, folding means located along said predetermined path for folding the web upon itself at each of said areas where said film of cleansing composition is located to enclose each film within the barrier layer, means located along said path for retaining the web in folded condition at said areas where said film of cleansing composition is located, and means for winding the web into a roll while said areas where said film of cleansing composition is located are retained in folded condition.
Claim 6
Dependent Claim
150 words
In an apparatus for manufacturing a roll of toilet paper, conveyor means for conveying a web of paper along a predetermined path, means situated along said path for depositing at predetermined areas of said web on one face thereof a film of cleansing composition, means located adjacent said path for depositing at an opposite face of said web at areas coinciding with said predetermined areas a barrier layer, folding means located along said predetermined path for folding the web upon itself at each of said areas where said film of cleansing composition is located to enclose each film within the barrier layer, means located along said path for retaining the web in folded condition at said areas where said film of cleansing composition is located, and means for winding the web into a roll while said areas where said film of cleansing composition is located are retained in folded condition.
Claim 7
Dependent Claim
79 words
The combination of claim 4 and wherein said means for retaining said areas of said web where said film of cleansing composition is located in folded condition comprises a freezing means for freezing the film of composition at each of said areas where the web is folded upon itself so that the frozen film will maintain the web folded upon itself at each of the areas where the film is located until the web is wound into a roll.
References Cited (Backward Citations)
US1203303A
Cited
US1906654A
Cited
US2725798A
Cited
US2855830A
Cited
US2874754A
Cited
US3532536A
Cited
US3702779A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-02-11 | 1977-08-13 | 1978-02-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-02-11 | 1981-08-13 | 1982-02-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-02-11 | 1985-08-13 | 1986-02-12 | $7700.00 | Window Closed / Lapsed |