Patent US3915042A successfully refreshed from Google Patents.
US3915042A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Random length cutter
Assignee: Hartford Fibres Ltd
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Filing: 1974-05-21
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Granted: 1975-10-28
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Expires: 1994-05-21
Abstract
Abstract A cutter is provided for cutting rope into fibers of varying lengths. A plurality of blades are provided having cutting edges arcuately arranged and facing either inwardly or outwardly. Rope is fed against the cutting edges of the blades, forcing the rope against the cutting edges and through the spaces between them. The planes of the cutting blades diverge from one another, providing an angular blade arrangement such that the spacing between any pair of blades varies along the length of the blade. The cut fibers, having different lengths, are preferably conveyed by a fluid such as air to a collecting chamber.
Inventors
- 👤 William F Laird
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 04:11
CPC Classifications
D; D01; D01G; D01G1/00; D01G1/02; D01G1/04; B; B26; B26D; B26D1/00; B26D1/56; Y; Y10; Y10S; Y10S83/00; Y10S83/913; Y10T; Y10T83/00; Y10T83/465; Y10T83/4766; Y10T83/4795; Y10T83/4824; Y10T83/483; Y10T83/4838; Y10T83/929; Y10T83/9372
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
166 words
In a cutter for cutting a rope into a plurality of cut fibers of varying lengths, wherein a support means is provided maintaining a plurality of spaced apart cutting blades in a substantially adjacent configuration, said blades having cutting edges which are arranged to contact said rope, and wherein guide means are provided for guiding said rope to said support means to distribute a layer of said rope adjacent to said cutting edges, and wherein a pressure means is provided which is operative and effective upon said rope to press it against said cutting edges to cut said rope in contact with said cutting edges, the improvement wherein said cutting edges are angularly arranged with respect to each other to vary the distances between adjacent cutting edges along the lengths of said adjacent blades, wheReby said rope is forced against said cutting edges and whereby the resulting cut fibers have varying lengths in proportion to the distance between the cutting edges at the point of cutting.
Claim 2
Dependent Claim
166 words
In a cutter for cutting a rope into a plurality of cut fibers of varying lengths, wherein a support means is provided maintaining a plurality of spaced apart cutting blades in a substantially adjacent configuration, said blades having cutting edges which are arranged to contact said rope, and wherein guide means are provided for guiding said rope to said support means to distribute a layer of said rope adjacent to said cutting edges, and wherein a pressure means is provided which is operative and effective upon said rope to press it against said cutting edges to cut said rope in contact with said cutting edges, the improvement wherein said cutting edges are angularly arranged with respect to each other to vary the distances between adjacent cutting edges along the lengths of said adjacent blades, wheReby said rope is forced against said cutting edges and whereby the resulting cut fibers have varying lengths in proportion to the distance between the cutting edges at the point of cutting.
Claim 3
Dependent Claim
37 words
The cutter defined in claim 1, wherein means are provided for flattening out the rope as it is fed to said cutter, to provide a flattened band having a width which is substantially greater than its thickness.
Claim 4
Dependent Claim
31 words
The cutter defined in claim 2, wherein said flattening means is arranged to direct said flattened rope so that its width direction extends generally along the length directions of said blades.
Claim 5
Dependent Claim
17 words
The cutter defined in claim 1, wherein said blades are supported between a pair of spaced rings.
Claim 6
Dependent Claim
27 words
The cutter defined in claim 4, wherein said blades and rings are in the form of a reel which is removable as a unit from said cutter.
Claim 7
Dependent Claim
19 words
The cutter defined in claim 1, wherein said blades are substantially circularly arranged, and wherein said blades face outwardly.
Claim 8
Dependent Claim
20 words
The cutter defined in claim 1, wherein said blades are arranged substantially circularly, and wherein said cutting edges face inwardly.
Claim 9
Dependent Claim
20 words
The cutter defined in claim 1, wherein means are provided for turbulently mixing the fibers after they have been cut.
Claim 10
Dependent Claim
30 words
The cutter defined in claim 1, wherein a pair of blade supports are spaced apart from one another, and wherein said blades are affixed to and extend between said supports.
Claim 11
Dependent Claim
16 words
The cutter defined in claim 1, wherein the blades are individually adjustable upon said support means.
Claim 12
Dependent Claim
14 words
The cutter defined in claim 1, wherein the distances between the blades are varied.
References Cited (Backward Citations)
US3485120A
Cited
US3557648A
Cited
US3485120B1
Cited
US3733945A
Cited
US3826163A
Cited
US3834263A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1978-10-27 | 1979-04-28 | 1979-10-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-10-27 | 1983-04-28 | 1983-10-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-10-27 | 1987-04-28 | 1987-10-28 | $7700.00 | Window Closed / Lapsed |