Patent US4719670A successfully refreshed from Google Patents.
Patent US4444361A successfully refreshed from Google Patents.
US4444361A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Vertically-oriented, closely-coupled, two-drum reel calender
Assignee: Kimberly Clark Worldwide Inc
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Filing: 1982-04-19
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Granted: 1984-04-24
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Expires: 2002-04-19
Abstract
Abstract An improved means for calendering and winding creped wadding at high speeds comprises two vertically-oriented calender rolls closely coupled with two vertically-oriented reel drums to improve operating efficiency, particularly through ease of threading broken webs.
Inventors
- 👤 David A. Nuttall
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 02:25
CPC Classifications
B; B31; B31F; B31F1/00; B31F1/12; B65; B65H; B65H18/00; B65H18/08; B65H18/10; B65H20/00; B65H20/02
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
93 words
In a process for manufacturing creped wadding wherein a creped web is dislodged from a creping cylinder and wound onto a reel spool, the improvement comprising: (a) calendering the creped web directly after leaving the creping cylinder between a single pair of vertically-oriented, independently driven calender rolls; and (b) winding the calendered web onto a reel spool driven by a pair of independently driven, vertically-oriented reel drums which are closely coupled with said calender rolls, such that the web passes between the two reel drums prior to being wound onto the reel spool.
Claim 2
Dependent Claim
93 words
In a process for manufacturing creped wadding wherein a creped web is dislodged from a creping cylinder and wound onto a reel spool, the improvement comprising: (a) calendering the creped web directly after leaving the creping cylinder between a single pair of vertically-oriented, independently driven calender rolls; and (b) winding the calendered web onto a reel spool driven by a pair of independently driven, vertically-oriented reel drums which are closely coupled with said calender rolls, such that the web passes between the two reel drums prior to being wound onto the reel spool.
Claim 3
Dependent Claim
21 words
The process of claim 1 wherein the vertically-oriented calender rolls are positioned from each other within about 20° of absolute vertical.
Claim 4
Dependent Claim
21 words
The process of claim 1 wherein the vertically-oriented calender rolls are positioned from each other within about 10° of absolute vertical.
Claim 5
Dependent Claim
20 words
The process of claim 1 wherein the vertically-oriented reel drums are within about 2 feet of the vertically-oriented calender rolls.
Claim 6
Dependent Claim
29 words
The process of claim 1 wherein the calender rolls are relatively positioned away from absolute vertical an amount sufficient to prevent skewing of one roll relative to the other.
Claim 7
Dependent Claim
140 words
In a process for manufacturing creped wadding wherein a creped web is dislodged from a creping cylinder and wound onto a rotating reel spool, the improvement comprising: (a) threading the tail of the creped web between two independently driven, vertically-oriented calender rolls, at least one of which is in a retracted position; (b) thereafter threading the tail of the creped web between two independently driven, vertically-oriented reel drums, closely coupled with the calender rolls, such that the web passes between one of said reel drums and the reel spool; (c) pressing the web to the reel spool with forced air causing frictional engagement of the web by the spool; (d) winding the web onto the reel spool; and (e) closing the nip between the calender rolls, wherein the tail passes through the calender rolls to the reel spool without interruption.
Claim 8
Dependent Claim
140 words
In a process for manufacturing creped wadding wherein a creped web is dislodged from a creping cylinder and wound onto a rotating reel spool, the improvement comprising: (a) threading the tail of the creped web between two independently driven, vertically-oriented calender rolls, at least one of which is in a retracted position; (b) thereafter threading the tail of the creped web between two independently driven, vertically-oriented reel drums, closely coupled with the calender rolls, such that the web passes between one of said reel drums and the reel spool; (c) pressing the web to the reel spool with forced air causing frictional engagement of the web by the spool; (d) winding the web onto the reel spool; and (e) closing the nip between the calender rolls, wherein the tail passes through the calender rolls to the reel spool without interruption.
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) | 1987-04-24 | 1987-10-24 | 1988-04-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1991-04-24 | 1991-10-24 | 1992-04-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1995-04-24 | 1995-10-24 | 1996-04-24 | $7700.00 | Window Closed / Lapsed |