US3717057A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Web cutting device in an apparatus for splicing an old web and a new web
Assignee: Fujifilm Holdings Corp
•
Filing: 1971-02-17
•
Granted: 1973-02-20
•
Expires: 1991-02-17
Abstract
Abstract Apparatus for splicing an old and a new web in abutting relation, comprising a web feed out station, a web cutting station and a web splicing station. The old and new webs are fed from the feed out station into substantially parallel relation and pass between a pair of rotatable drums at the cutting station and a pair of rotatable drums at the splicing station. One of the drums at the cutting station has a blade for cutting the old and new webs, and a perforated old web holding and releasing portion disposed adjacent one side of the blade. The other drum at the cutting station has a perforated new web holding and releasing portion that is disposed on the side of the blade opposite to the one side when the cutting drums are in positions such that the blade is disposed adjacent to the other drum. One of the drums at the splicing station has a perforated portion adapted to retain a splicing tape thereon for application to the abutted new and old webs at the splicing station.
Inventors
- 👤 H Takimoto
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 15:21
CPC Classifications
B; B65; B65H; B65H19/00; B65H19/10; B65H19/18; B65H19/1857; B65H19/1868; B23; B23D; B23D59/00; B23D59/006; B23D59/0062; B29; B29C; B29C65/00; B29C65/48; B29C65/50; B29C65/5042; B29C65/5092; B29C65/74; B29C65/749; B29C65/78; B29C65/7841; B29C65/7847; B29C65/7858; B29C65/7888; B29C65/7894; B29C66/00; B29C66/01; B29C66/05; B29C66/10; B29C66/11; B29C66/114; B29C66/1142; B29C66/40; B29C66/41; B29C66/43; B29C66/80; B29C66/83; B29C66/834; B29C66/8351; B29C66/83511; B29C66/83513; B29C66/83517; B29C66/84; B29C66/853; B29C69/00; B29C69/005; B29C69/006; B65H19/1805; B65H19/1826; B65H19/1836; B29C66/70; B29C66/73; B29C66/735; B29C66/7352; B65H2301/00; B65H2301/40; B65H2301/46; B65H2301/461; B65H2301/4615; B65H2301/4617; B65H2301/46176; B65H2301/462; B65H2301/4622; B65H2301/464; B65H2301/46414; B65H2301/464145; Y; Y10; Y10T; Y10T156/00; Y10T156/12; Y10T83/00; Y10T83/202; Y10T83/2092; Y10T83/2183; Y10T83/2185; Y10T83/219; Y10T83/465; Y10T83/4766; Y10T83/4795; Y10T83/483; Y10T83/4838
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
186 words
In an apparatus for splicing an old and a new web, comprising a web feed out station, a web cutting station and a web splicing station arranged in order, said web cutting station comprising a pair of rotatable drums between which the old and new webs are advanced, one of said drums being provided with a blade to cut the webs and with an old web holding and releasing portion disposed adjacent one side of said blade, the other of said drums being provided with a new web holding and releasing portion that is disposed on the side of said blade opposite to said one side when the drums are in positions such that the blade is disposed adjacent to the other drum, the improvement comprising: upper and lower guide plates extending substantially parallel to the web advancing direction and on opposite sides of the old and new webs respectively and positioned so as to prevent the new web from being attracted to the old web by electrostatic force, said upper and lower guide plates extending between said web cutting station and said web splicing station.
Claim 2
Dependent Claim
186 words
In an apparatus for splicing an old and a new web, comprising a web feed out station, a web cutting station and a web splicing station arranged in order, said web cutting station comprising a pair of rotatable drums between which the old and new webs are advanced, one of said drums being provided with a blade to cut the webs and with an old web holding and releasing portion disposed adjacent one side of said blade, the other of said drums being provided with a new web holding and releasing portion that is disposed on the side of said blade opposite to said one side when the drums are in positions such that the blade is disposed adjacent to the other drum, the improvement comprising: upper and lower guide plates extending substantially parallel to the web advancing direction and on opposite sides of the old and new webs respectively and positioned so as to prevent the new web from being attracted to the old web by electrostatic force, said upper and lower guide plates extending between said web cutting station and said web splicing station.
Claim 3
Dependent Claim
186 words
In an apparatus for splicing an old and a new web, comprising a web feed out station, a web cutting station and a web splicing station arranged in order, said web cutting station comprising a pair of rotatable drums between which the old and new webs are advanced, one of said drums being provided with a blade to cut the webs and with an old web holding and releasing portion disposed adjacent one side of said blade, the other of said drums being provided with a new web holding and releasing portion that is disposed on the side of said blade opposite to said one side when the drums are in positions such that the blade is disposed adjacent to the other drum, the improvement comprising: upper and lower guide plates extending substantially parallel to the web advancing direction and on opposite sides of the old and new webs respectively and positioned so as to prevent the new web from being attracted to the old web by electrostatic force, said upper and lower guide plates extending between said web cutting station and said web splicing station.
Claim 4
Dependent Claim
186 words
In an apparatus for splicing an old and a new web, comprising a web feed out station, a web cutting station and a web splicing station arranged in order, said web cutting station comprising a pair of rotatable drums between which the old and new webs are advanced, one of said drums being provided with a blade to cut the webs and with an old web holding and releasing portion disposed adjacent one side of said blade, the other of said drums being provided with a new web holding and releasing portion that is disposed on the side of said blade opposite to said one side when the drums are in positions such that the blade is disposed adjacent to the other drum, the improvement comprising: upper and lower guide plates extending substantially parallel to the web advancing direction and on opposite sides of the old and new webs respectively and positioned so as to prevent the new web from being attracted to the old web by electrostatic force, said upper and lower guide plates extending between said web cutting station and said web splicing station.
Claim 5
Dependent Claim
100 words
The apparatus for splicing webs as defined in claim 1 wherein said other drum in contact with the new web has two compartments, one of which is connected with said web holding and releasing portion and the other of which is connected with a perforation through the surface of said other drum, said perforation being positioned such that it is disposed on said one side of said blade when said drums are in positions such that said blade is disposed adjacent to said other drum, and means for selectively supplying both compartments simultaneously with positive air pressUre or suction pressure.
Claim 6
Dependent Claim
68 words
Apparatus for splicing webs as defined in claim 1 wherein said web feed out station comprises a web roll support having at least two web roll holding means, one of said holding means supporting the old web and the other of said holding means supporting the new web, and a pair of pass rolls to guide the new and old webs in close parallel relation to each other.
References Cited (Backward Citations)
US2706515A
Cited
US2930427A
Cited
US3226279A
Cited
US3434907A
Cited
US3549458A
Cited
US3654035A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-02-20 | 1976-08-21 | 1977-02-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-02-20 | 1980-08-21 | 1981-02-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-02-20 | 1984-08-21 | 1985-02-20 | $7700.00 | Window Closed / Lapsed |