Patent US4729383A successfully refreshed from Google Patents.
Patent US3654035A successfully refreshed from Google Patents.
US3654035A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Web butt splicing apparatus
Assignee: Fujifilm Holdings Corp
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Filing: 1970-01-26
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Granted: 1972-04-04
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Expires: 1990-01-26
Abstract
Abstract Three rotatable drums are mounted on a framework with two of the webs carrying a cooperating cutting tool with old and new webs fed therebetween. Rotation of the same causes simultaneous cutting of the old and new webs as they are held in overlapping position to achieve butt positioning of the ends while an adhesive strip carried on the periphery of the third drum moves into position to overlap the abutting ends.
Inventors
- 👤 Hisashi Takimoto
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 21:41
CPC Classifications
B; B29; B29C; B29C65/00; B29C65/48; B29C65/50; B29C65/5042; B21; B21C; B21C47/00; B21C47/24; B21C47/247; 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; B29C66/8341; B29C66/83411; B29C66/83417; B29C66/8351; B29C66/83511; B29C66/83513; B29C66/83517; B29C66/84; B29C66/853; B29C69/00; B29C69/005; B29C69/006; B65; B65H; B65H19/00; B65H19/10; B65H19/18; B65H19/1805; B65H19/1826; B65H19/1836; B65H19/1857; B65H19/1868; B29C2793/00; B65H2301/00; B65H2301/40; B65H2301/46; B65H2301/461; B65H2301/4615; B65H2301/4617; B65H2301/46176; B65H2301/462; B65H2301/4622; B65H2301/464; B65H2301/4641; B65H2301/46414; B65H2301/464145
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
230 words
An apparatus for butt splicing of webs comprising: a framework, a first cutting drum and carrying means for holding the leading end of a new web on the periphery thereof for moving the same into splicing position, cutting means on said first drum, a second cutting and splicing drum, means for holding the old web on the periphery of said second drum during rotation of the same, cutting means carried by said second drum and cooperating with said cutting means of said first drum, a third splicing drum including means for holding a piece of splicing tape thereon for movement therewith, and means for rotatably supporting said drums on said framework for rotation in synchronism such that said second drum is positioned closely adjacent to said first drum and said third drum, the leading end of said new web and the trailing end of said old web are sandwiched between said first and second drums to simultaneously sever the same by said cutting means, the abutting ends of the new and old webs are subsequently sandwiched along with said strip of said splicing tape between said second and third drums such that said splicing tape overlies said abutting web ends to splice the same, and the cut portion of the trailing end of the old web is removed from the spliced joint by the holding means on said second drum.
Claim 2
Independent Claim
230 words
An apparatus for butt splicing of webs comprising: a framework, a first cutting drum and carrying means for holding the leading end of a new web on the periphery thereof for moving the same into splicing position, cutting means on said first drum, a second cutting and splicing drum, means for holding the old web on the periphery of said second drum during rotation of the same, cutting means carried by said second drum and cooperating with said cutting means of said first drum, a third splicing drum including means for holding a piece of splicing tape thereon for movement therewith, and means for rotatably supporting said drums on said framework for rotation in synchronism such that said second drum is positioned closely adjacent to said first drum and said third drum, the leading end of said new web and the trailing end of said old web are sandwiched between said first and second drums to simultaneously sever the same by said cutting means, the abutting ends of the new and old webs are subsequently sandwiched along with said strip of said splicing tape between said second and third drums such that said splicing tape overlies said abutting web ends to splice the same, and the cut portion of the trailing end of the old web is removed from the spliced joint by the holding means on said second drum.
Claim 3
Dependent Claim
58 words
The apparatus as claimed in claim 1 further comprising: means for selectively applying vacuum pressure to the periphery of said first, second and third dRums to maintain said webs and said splicing strip in proper peripheral positions on said drums during rotation of the same to insure proper cutting of said webs, and butt splicing of the same.
Claim 4
Dependent Claim
59 words
The apparatus as claimed in claim 2, further comprising: means for selectively applying positive air pressure to the peripheral surface of said first and second drums during portions of their rotation to facilitate blowing the severed portions of both the leading end of the new web and the trailing end of the old web away from the drum peripheries.
Claim 5
Dependent Claim
44 words
The apparatus as claimed in claim 3, wherein said first and second drums constitute hollow sectors and said second drum carries therewith a cylindrical guide member which facilitates proper movement of said webs through said splicing apparatus during both splicing and normal web feed.
Claim 6
Dependent Claim
73 words
The apparatus as claimed in claim 4 further comprising: a curved guide plate fixed to said framework at a position radially spaced from the periphery of the second drum and intermediate of said first and third drums to facilitate movement of the severed leading and trailing ends of said new and old webs respectively into sandwiched position between said second and third drum and to facilitate the splicing of the abutting ends thereof.
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) | 1975-04-04 | 1975-10-04 | 1976-04-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-04-04 | 1979-10-04 | 1980-04-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-04-04 | 1983-10-04 | 1984-04-04 | $7700.00 | Window Closed / Lapsed |