Patent US4236431A successfully refreshed from Google Patents.
US4236431A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Multiple head slitter
Assignee: Braner USA Inc
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Filing: 1979-01-18
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Granted: 1980-12-02
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Expires: 1999-01-18
Abstract
Abstract A slitter with a plurality of slitter heads mounted on a turntable to allow rotation of the heads. Each slitter head is adapted to be joined to a motor drive by means of an interconnecting arbor end portion which extends from the outboard bearing of the slitting head.
Inventors
- 👤 Charles B. Gawlik
- 👤 James D. Hall
- 👤 Douglas S. Matsunaga
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 19:44
CPC Classifications
B; B23; B23D; B23D35/00; B23D35/008; Y; Y10; Y10T; Y10T408/00; Y10T408/36; Y10T408/37; Y10T83/00; Y10T83/768; Y10T83/7738; Y10T83/869; Y10T83/8727; Y10T83/8729; Y10T83/873; Y10T83/8732; Y10T83/8748; Y10T83/8749
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
261 words
A multiple head slitter having a material pass line and including a frame, a plurality of slitter heads, each slitter head including a pair or arbors, means carried by said frame for supporting said slitter heads for rotation about a common vertical axis with the arbors of the slitter heads passing in a generally horizontal plane, each slitter head including an inboard bearing housing located adjacent said axis of rotation and an outboard bearing housing spaced generally radially relative to said axis from said inboard bearing housing with said pair of arbors thereof journaled between said housings, whereby a selected slitter head can be positioned with its pair of arbors extending across said material pass line, the improvement wherein said one arbor of the selected slitter head includes an extending end portion projecting outwardly from one of said outboard bearing housing and inboard bearing housing of the slitter head, driving means carried by said frame for rotating said one arbor when engaged with said extending end portion thereof, one of said arbor extending end portion and said driving means including a projecting part means for fitting in rotating locking engagement into said slotted part, said driving means being fixedly located relative to said axis of rotation of the slitter heads wherein upon rotation of the slitter heads about the axis of rotation said projecting part means will be fitted into said slotted part at alignment of said arbor extended end portion with the driving means to permit the driving means to rotate said arbor extended end portion and the arbor thereof.
Claim 2
Dependent Claim
261 words
A multiple head slitter having a material pass line and including a frame, a plurality of slitter heads, each slitter head including a pair or arbors, means carried by said frame for supporting said slitter heads for rotation about a common vertical axis with the arbors of the slitter heads passing in a generally horizontal plane, each slitter head including an inboard bearing housing located adjacent said axis of rotation and an outboard bearing housing spaced generally radially relative to said axis from said inboard bearing housing with said pair of arbors thereof journaled between said housings, whereby a selected slitter head can be positioned with its pair of arbors extending across said material pass line, the improvement wherein said one arbor of the selected slitter head includes an extending end portion projecting outwardly from one of said outboard bearing housing and inboard bearing housing of the slitter head, driving means carried by said frame for rotating said one arbor when engaged with said extending end portion thereof, one of said arbor extending end portion and said driving means including a projecting part means for fitting in rotating locking engagement into said slotted part, said driving means being fixedly located relative to said axis of rotation of the slitter heads wherein upon rotation of the slitter heads about the axis of rotation said projecting part means will be fitted into said slotted part at alignment of said arbor extended end portion with the driving means to permit the driving means to rotate said arbor extended end portion and the arbor thereof.
Claim 3
Dependent Claim
34 words
The multiple head slitter of claim 1 and anchoring means for preventing rotational movement of said slitter heads about said axis of rotation when said arbor extending end portion and driving means are engaged.
Claim 4
Dependent Claim
61 words
The multiple head slitter of claim 1 wherein at least one arbor of each slitter head includes a said arbor extending end portion, each arbor extending end portion projecting outwardly from the outboard bearing housing of the slitter head and being adapted to engage said driving means when aligned therewith upon rotation of said slitter heads about said axis of rotation.
Claim 5
Dependent Claim
35 words
The multiple head slitter of claim 3 wherein the outboard bearing housing of each slitter head is shiftable to vary the spacing between bearing housings of the slitter head while journaling its pair of arbors.
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) | 1983-12-02 | 1984-06-02 | 1984-12-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1987-12-02 | 1988-06-02 | 1988-12-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1991-12-02 | 1992-06-02 | 1992-12-02 | $7700.00 | Window Closed / Lapsed |