US3883084A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Film wrapping apparatus
Assignee: Nishimura Seisakusho Co Ltd
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Filing: 1973-09-06
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Granted: 1975-05-13
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Expires: 1993-09-06
Abstract
Abstract The film wrapping apparatus comprises a film winding core roller, means for driving said core roller for rotation, an endless belt pressed at a stretched portion thereof against the film winding core roller so that the endless belt is moved along with the film winding core roller, and pneumatic means for blowing air toward a region where the endless belt becomes into contact with the peripheral surface of the film winding core roller, whereby the wrapping of the film around peripheral surface of the film winding core roller is automatically initiated since the leading end portion of the film is introduced by the air blowing force between the endless belt and the peripheral surface of the core roller.
Inventors
- 👤 Toshiaki Yamaguchi
- 👤 Keizo Narita
- 👤 Kimihiro Wada
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 19:37
CPC Classifications
G; G03; G03B; G03B1/00; G03B1/56; B; B65; B65H; B65H19/00; B65H19/22; B65H19/28; G03B21/00; G03B21/14; G03B21/32; G03B21/43; B65H2301/00; B65H2301/40; B65H2301/41; B65H2301/414; B65H2301/41419; B65H2301/41425
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
186 words
A film wrapping apparatus comprising a film winding core roller, means for driving said core roller for rotation, an endless belt stretched between a plurality of pulleys, said endless belt being pressed at a stretched portion thereof against said core roller along its peripheral direction so that said endless belt is moved along with said core roller, means for feeding a continuous film in a direction of its continuous length, cutting means for cutting said continuous film at a fixed position during its feeding to form a new leading end of said continuous film, air blowing means located immediately before said cutting means, said air blowing means facing the region where said endless belt contacts the surface of said core roller to introduce said leading end portion of said continuous film between said stretched portion of said endless belt and said core roller at said region, whereby the wrapping of said film around the peripheral surface of said core roller is automatically initiated with said endless belt and said peripheral surface of said film winding core roller holding the leading end portion of said film therebetween.
Claim 2
Dependent Claim
186 words
A film wrapping apparatus comprising a film winding core roller, means for driving said core roller for rotation, an endless belt stretched between a plurality of pulleys, said endless belt being pressed at a stretched portion thereof against said core roller along its peripheral direction so that said endless belt is moved along with said core roller, means for feeding a continuous film in a direction of its continuous length, cutting means for cutting said continuous film at a fixed position during its feeding to form a new leading end of said continuous film, air blowing means located immediately before said cutting means, said air blowing means facing the region where said endless belt contacts the surface of said core roller to introduce said leading end portion of said continuous film between said stretched portion of said endless belt and said core roller at said region, whereby the wrapping of said film around the peripheral surface of said core roller is automatically initiated with said endless belt and said peripheral surface of said film winding core roller holding the leading end portion of said film therebetween.
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) | 1978-05-12 | 1978-11-11 | 1979-05-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-05-12 | 1982-11-11 | 1983-05-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-05-12 | 1986-11-11 | 1987-05-13 | $7700.00 | Window Closed / Lapsed |