US3765292A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Cutting device for a moving web
Assignee: Fujifilm Holdings Corp
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Filing: 1971-12-17
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Granted: 1973-10-16
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Expires: 1991-12-17
Abstract
Abstract A rotatable cutter member is mounted on a movable carrier such that its center of gravity is located on the shaft connected to the movable carrier. Thus, the cutter member can freely position itself relative to a moving web that is to be cut without introducing unwanted tension or an irregular cut line. A guide track supports the movement of the carrier while the cutter member forms a V-notch cutting edge.
Inventors
- 👤 K Fujiwara
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 16:20
CPC Classifications
B; B26; B26D; B26D1/00; B26D1/01; B26D1/04; B26D1/045; Y; Y10; Y10T; Y10T83/00; Y10T83/485; Y10T83/49; Y10T83/869; Y10T83/8821; Y10T83/8822
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
126 words
A cutting assembly for cutting a relatively moving member with a minimum of tension in the member comprising: a carrier member; guide means for the carrier member; means for moving the carrier member, cutter means mounted on the carrier member and freely rotatable relative to the moving member for cutting the moving member as a function of the sPeed of the carrier member and the moving member, said cutter means including a support member and a cutter blade, said cutter blade being located at one end of the support member, a shaft connecting the support member to the carrier member at the center of gravity of the support member and the cutter blade and said cutter blade being V-shaped and fixed relative to said support member.
Claim 2
Dependent Claim
126 words
A cutting assembly for cutting a relatively moving member with a minimum of tension in the member comprising: a carrier member; guide means for the carrier member; means for moving the carrier member, cutter means mounted on the carrier member and freely rotatable relative to the moving member for cutting the moving member as a function of the sPeed of the carrier member and the moving member, said cutter means including a support member and a cutter blade, said cutter blade being located at one end of the support member, a shaft connecting the support member to the carrier member at the center of gravity of the support member and the cutter blade and said cutter blade being V-shaped and fixed relative to said support member.
Claim 3
Dependent Claim
16 words
A cutting assembly as in claim 1, where a variable speed means drives the carrier member.
Claim 4
Dependent Claim
14 words
A cutting assembly as in claim 1, where the guide means includes a track.
Claim 5
Dependent Claim
23 words
A cutting assembly as in claim 1, where the support member is counter balanced with respect to the weight of the cutter blade.
Claim 6
Dependent Claim
35 words
A cutting assembly as in claim 2, where the cutting angle between the moving member and the cutter blade is Theta tan 1Vw/Vc, where Vw equals moving member velocity and Vc equals cutter blade velocity.
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) | 1976-10-15 | 1977-04-16 | 1977-10-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-10-15 | 1981-04-16 | 1981-10-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-10-15 | 1985-04-16 | 1985-10-16 | $7700.00 | Window Closed / Lapsed |