US3616007A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method for controlling and transferring crosslaid sheets
Assignee: Kimberly Clark Corp
•
Filing: 1969-02-28
•
Granted: 1971-10-26
•
Expires: 1989-02-28
Abstract
Abstract A method and apparatus for making multiply, crosslaid material is disclosed. The ply of material to be crosslaid is deposited by a rotatable carrier disposed about a mandrel on which a continuous carrier belt is helically wound. Another ply of material is helically wound on top of the crosslaid ply in advance of a slitter and, after slitting, the plies are separated from the carrier belt with the aid of a vacuum roll and directed into the nip of a pair of combining rolls. In its preferred embodiment, an upper holddown belt is also helically wound on the last turn of the mandrel.
Inventors
- 👤 Dean K Anderson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 13:25
CPC Classifications
D; D04; D04H; D04H1/00; D04H1/70; D04H1/74; B; B65; B65H; B65H39/00; B65H39/16; D04H3/00; D04H3/02; D04H3/04
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
13 words
The method defined in claim 1 wherein bonding is initiated prior to slitting.
Claim 2
Dependent Claim
27 words
The method defined in claim 1 wherein the composite web formed by the first and second webs is separated from the belt after slitting the first web.
Claim 3
Dependent Claim
25 words
The method defined in claim 3 wherein the first and second webs are separated from the belt by drawing a vacuum through the second web.
Claim 4
Dependent Claim
21 words
The method defined in claim 3 wherein the bonding step includes directing the composite web partially around a heated calender roll.
Claim 5
Dependent Claim
28 words
The method defined in claim 5 wherein the cut segments of the first web are held against the surface of the heated calender roll by the second web.
Claim 6
Dependent Claim
20 words
The method defined in claim 5 wherein the composite web is pressed against the surface of the heated calender roll.
Claim 7
Dependent Claim
79 words
The method defined in claim 1 including the steps of applying adhesive to one of the webs prior to helically wrapping the second web, separating the composite web formed by the first and second webs from the belt and directing said composite web around a heated calender roll to heat the adhesive and bond the first and second webs, with the second web material holding the cut segments of the first web against the surface of the calender roll.
Claim 8
Dependent Claim
85 words
The method defined in claim 1 including the intermediate step of introducing a holding belt over the second web as it moves around said subsequent turn and then separating the composite web formed by the first and second webs from the holding belt following the separation of the composite web from the first belt and directing the composite web partially around a heated calender roll with the second web material holding the cut segments of the first web against the surface of the calender roll.
Claim 9
Dependent Claim
73 words
The method defined in claim 9 wherein the steps of separating the composite webs from both belts includes drawing a vacuum through a vacuum roller around which the holding belt and the composite web formed by the first and second webs are partially wound terminating the vacuum along an axially extending line on the periphery of the vacuum roller substantially tangent with the agress path of the holding belt from the vacuum roller.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-10-25 | 1975-04-26 | 1975-10-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-10-25 | 1979-04-26 | 1979-10-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-10-25 | 1983-04-26 | 1983-10-26 | $7700.00 | Window Closed / Lapsed |