US3782233A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Rotatable cutter mechanism for cutting different length notches in a moving web
Assignee: FL Smithe Machine Co Inc
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Filing: 1971-11-12
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Granted: 1974-01-01
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Expires: 1991-11-12
Abstract
Abstract The cutter mechanism includes a fixed cutter having side notches therein over which either a sheet, strip or an endless web of paper travels at a preselected speed. A pair of rotatable cutters are mounted on shafts for rotation in timed relation to each other and to the speed of the sheet, strip or web. The rotatable cutters are positioned on opposite sides of the fixed cutter. Each of the rotatable cutters has a first radially extending cutter blade and a second radially extending cutter blade arranged longitudinally along the shaft and adjacent to each other. One of the radially extending blades is adjustable angularly relative to the other. The relative radial angle between the blades determines the length of the notch cut by the respective rotatable cutters in the side of the sheet, strip or web.
Inventors
- 👤 H Helm
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 14:24
CPC Classifications
B; B26; B26D; B26D3/00; B26D3/14; Y; Y10; Y10S; Y10S83/00; Y10S83/911; Y10S83/917; Y10T; Y10T83/00; Y10T83/485; Y10T83/494; Y10T83/501; Y10T83/929; Y10T83/9372; Y10T83/9391
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
239 words
A rotatable cutter mechanism for cutting different length notches in a moving segment comprising, a unitary fixed cutter blade mounted on a support member, said unitary fixed cutter blade having a continuous cutting surface, a shaft rotatably supported adjacent to said fixed cutter blade, drive means to rotate said shaft, rotatable cutter means secured to said shaft for rotation therewith, said rotatable cutter means having radially extending blade means, said rotatable cutter means positioned adjacent to said unitary fixed cutter blade so that upon rotation of said rotatable cutter means said radially extending blade means moves in a circular path and periodically moves into cutting relation with said fixed cutter means, said radially extending blade means having a leading portion angularly displaced from a trailing portion so that upon rotation of said rotatable cutter means said leading portion moves into cutting relation with said fixed cutter blade to cut a portion of a notch including the radial lead edge of the notch and a portion of the side edge of the notch and thereafter said trailing portion moves into cutting relation with said fixed cutter means to cut the remaining side edge of the notch and the radial trailing edge of the notch, and means to vary the angular displacement between said radially extending blade means leading portion and trailing portion to thereby vary the length of a notch cut in a moving segment by said rotatable cutter means.
Claim 2
Dependent Claim
239 words
A rotatable cutter mechanism for cutting different length notches in a moving segment comprising, a unitary fixed cutter blade mounted on a support member, said unitary fixed cutter blade having a continuous cutting surface, a shaft rotatably supported adjacent to said fixed cutter blade, drive means to rotate said shaft, rotatable cutter means secured to said shaft for rotation therewith, said rotatable cutter means having radially extending blade means, said rotatable cutter means positioned adjacent to said unitary fixed cutter blade so that upon rotation of said rotatable cutter means said radially extending blade means moves in a circular path and periodically moves into cutting relation with said fixed cutter means, said radially extending blade means having a leading portion angularly displaced from a trailing portion so that upon rotation of said rotatable cutter means said leading portion moves into cutting relation with said fixed cutter blade to cut a portion of a notch including the radial lead edge of the notch and a portion of the side edge of the notch and thereafter said trailing portion moves into cutting relation with said fixed cutter means to cut the remaining side edge of the notch and the radial trailing edge of the notch, and means to vary the angular displacement between said radially extending blade means leading portion and trailing portion to thereby vary the length of a notch cut in a moving segment by said rotatable cutter means.
Claim 3
Dependent Claim
55 words
A rotatable cutter mechanism for cutting different length notches in a moving segment as set forth in claim 1 in which, said radially extending blade means leading portion includes a rearwardly extending portion and said trailing portion includes a forwardly extending portion, said forwardly extending portion positioned in overlapped relation with said rearwardly extending portion.
Claim 4
Dependent Claim
36 words
A rotatable cutter mechanism for cutting different length notches in a moving segment as set forth in claim 2 in which, said rearwardly extending portion and said forwardly extending portions having substantially straight blade edge portions.
Claim 5
Dependent Claim
82 words
A rotatable cutter mechanism for cutting different length notches in a moving segment as set forth in claim 1 in which, said leading portion having a blade edge portion arranged to cut an envelope blank seal flap side edge and a portion of an adjacent envelope blank bottom flap side edge in the side edge of a moving segment, and said trailing edge portion having a blade edge portion to cut the remaining portion of said adjacent envelope blank bottom flap edge.
Claim 6
Dependent Claim
39 words
A rotatable cutter mechanism for cutting different length notches in a moving segment as set forth in claim 1 in which, said radially extending blade means includes a pair of separate cutter blades positioned in side by side relation.
Claim 7
Dependent Claim
80 words
A rotatable cutter mechanism for cutting different length notches in a moving segment as set forth in claim 5 which includes, separate cutter blade holders nonrotatably mounted on a common rotatable shaft, said separate cutter blade holders mounted on said shaft adjacent to each other, at least one of said blade holders being adjustably mounted on said shaft for preselected rotation relative to the other of said blade holders to thereby adjust the angular displacement between said separate cutter blades.
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) | 1976-12-31 | 1977-07-02 | 1978-01-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-12-31 | 1981-07-02 | 1982-01-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-12-31 | 1985-07-02 | 1986-01-01 | $7700.00 | Window Closed / Lapsed |