Patent US4602664A successfully refreshed from Google Patents.
Patent US4173313A successfully refreshed from Google Patents.
US4173313A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Metal web handling method, apparatus and coil construct
Assignee: COILED INVESTMENTS Inc A CORP OF DE
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Filing: 1977-07-25
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Granted: 1979-11-06
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Expires: 1997-07-25
Abstract
Abstract The disclosure includes method and apparatus for handling elongated webs of sheet metal, and a sheet metal construct formed as an intermediate product and comprising a parent coil pre-divided into a plurality of daughter coils. In one method sequence, separation can be completed by the end user of the coil just before it is fed into a press or the like. In another method sequence, separation is completed during wrapping of the parent coil. In still other sequences, completion of separation can be accomplished at stages intermediate these two. Slitting may be done directly off a mill. Edge trim strip may be wound as part of the parent coil to simplify scrap handling, and may be used to protect the coil in transit.
Inventors
- 👤 John W. Rogers
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 16:38
CPC Classifications
B; B65; B65H; B65H18/00; B65H18/08; B65H18/10; B65H18/106; B21; B21C; B21C47/00; B21C47/006; B23; B23D; B23D19/00; B23D19/04; B23D19/06; B65H16/00; B65H16/10; B65H16/103; B65H18/103; B65H35/00; B65H35/02; B65H2301/00; B65H2301/40; B65H2301/41; B65H2301/414; B65H2301/4148; B65H2301/41485; B65H2301/50; B65H2301/51; B65H2301/513; B65H2301/5133; B65H2701/00; B65H2701/10; B65H2701/13; B65H2701/132
Claims Analysis
Total Claims: 33
Claim 1
Independent Claim
76 words
A method of producing a plurality of strips from an elongated web of sheet metal comprising the steps of: (a) slitting said web along spaced, parallel parting lines defining sheet metal strips therebetween, said strips at least over a portion of the length of said parting lines being frangibly interconnected, (b) winding said interconnected strips into a coiled construct, and (c) completing severence of said web into separate strips after winding of said construct has commenced.
Claim 2
Independent Claim
76 words
A method of producing a plurality of strips from an elongated web of sheet metal comprising the steps of: (a) slitting said web along spaced, parallel parting lines defining sheet metal strips therebetween, said strips at least over a portion of the length of said parting lines being frangibly interconnected, (b) winding said interconnected strips into a coiled construct, and (c) completing severence of said web into separate strips after winding of said construct has commenced.
Claim 3
Dependent Claim
22 words
The method of claim 1 in which severence of said web into separate strips is effected after completing winding of said construct.
Claim 4
Dependent Claim
20 words
The method of claim 2 in which severence of said web into separate strips is effected upon unwinding said construct.
Claim 5
Dependent Claim
16 words
The method of claim 2 in which said strips are coiled when separated from said construct.
Claim 6
Dependent Claim
47 words
The method of claim 1 in which said parting lines are formed by penetrating the surface of said web continuously over the length of said parting lines but, at least over a portion thereof, penetration being to a depth less than that required to sever said strips.
Claim 7
Dependent Claim
44 words
The method of claim 1 in which said parting lines are formed by continuously penetrating said web surface to a depth sufficient to sever said strips followed by rejoinder of said strips at least over a portion of the length of said parting lines.
Claim 8
Dependent Claim
51 words
The method of claim 5 in which penetration of the surface of said web is to the depth of severence over a portion of the length of said parting lines and to a depth short of severence over another portion thereof to produce a residuum of unsevered metal interconnecting adjacent strips.
Claim 9
Dependent Claim
26 words
The method of claim 7 in which penetration of said surface to a depth short of severence occurs intermittently along the length of said parting lines.
Claim 10
Dependent Claim
30 words
The method of claim 7 including the step of rejoining said strips over at least a portion of the depth of said parting lines along which said strips are severed.
Claim 11
Dependent Claim
26 words
The method of claim 1 including the step of transporting said construct to a point of use prior to completing severence of any of said strips.
Claim 12
Dependent Claim
33 words
The method of claim 1 in which said sheet metal web varies in thickness across its width and in which said strips are constrained to wind together at uniform lengths per unit turn.
Claim 13
Independent Claim
91 words
A method of producing a plurality of coiled strips from an elongated web of sheet metal varying in thickness across its width in which said strips tend to wind independently of each other when severed, comprising the steps of: (a) slitting said web along spaced, parallel parting lines defining sheet metal strips therebetween, (b) winding said strips simultaneously on a coiler; (c) sensing the differences in winding said strips on said coiler, and (d) interconnecting said strips intermittently along the length of said parting lines in response to said sensed differences.
Claim 14
Independent Claim
91 words
A method of producing a plurality of coiled strips from an elongated web of sheet metal varying in thickness across its width in which said strips tend to wind independently of each other when severed, comprising the steps of: (a) slitting said web along spaced, parallel parting lines defining sheet metal strips therebetween, (b) winding said strips simultaneously on a coiler; (c) sensing the differences in winding said strips on said coiler, and (d) interconnecting said strips intermittently along the length of said parting lines in response to said sensed differences.
Claim 15
Dependent Claim
33 words
The method of claim 12 in which interconnection of said strips is effected by slitting said web to a depth short of severence over a portion of the length of said parting lines.
Claim 16
Dependent Claim
34 words
The method of claim 12 in which interconnection of said strips is effected by pressing said strips along a portion of the length of said parting lines to form a joint between adjacent strips.
Claim 17
Dependent Claim
56 words
In the method of producing a plurality of coiled strips from an elongated web of sheet metal in which said coiled strips are retained in a coiled construct prior to severence the step of controlling the degree of cohesion between adjacent coiled strips by selecting a cross sectional extent of individual interconnections between adjacent strip coils.
Claim 18
Dependent Claim
56 words
In the method of producing a plurality of coiled strips from an elongated web of sheet metal in which said coiled strips are retained in a coiled construct prior to severence the step of controlling the degree of cohesion between adjacent coiled strips by selecting a cross sectional extent of individual interconnections between adjacent strip coils.
Claim 19
Dependent Claim
53 words
In the method of producing a plurality of coiled strips from an elongated web of sheet metal in which said coiled strips are retained in a coiled construct prior to severence the step of controlling the degree of cohesion between adjacent coiled strips by varying the frequency of interconnections between adjacent coiled strips.
Claim 20
Dependent Claim
53 words
In the method of producing a plurality of coiled strips from an elongated web of sheet metal in which said coiled strips are retained in a coiled construct prior to severence the step of controlling the degree of cohesion between adjacent coiled strips by varying the frequency of interconnections between adjacent coiled strips.
Claim 21
Dependent Claim
22 words
In the method of claim 15 the additional step of varying the degree of frequency of interconnections of selected cross sectional extent.
Claim 22
Dependent Claim
78 words
In a method of producing a coiled construct by slitting a plurality of strips from an elongated web of sheet metal and simultaneously winding said strips on a coiler the steps of: (a) guiding said strips in parallel, substantially coplanar tracks by the slitting cutters for a limited distance in the feed direction of said strips from said cutters, and (b) taking up said strips on said coiler while said strips remain in said parallel, substantially coplanar tracks.
Claim 23
Dependent Claim
78 words
In a method of producing a coiled construct by slitting a plurality of strips from an elongated web of sheet metal and simultaneously winding said strips on a coiler the steps of: (a) guiding said strips in parallel, substantially coplanar tracks by the slitting cutters for a limited distance in the feed direction of said strips from said cutters, and (b) taking up said strips on said coiler while said strips remain in said parallel, substantially coplanar tracks.
Claim 24
Dependent Claim
25 words
The method of claim 18 including the step of intermittently interconnecting the edges of said strips prior to taking up said strips on said coiler.
Claim 25
Dependent Claim
125 words
In apparatus including a plurality of laterally spaced slitting cutters operative to form spaced, parallel parting lines in an elongated web of sheet metal to define parallel strips therebetween and a coiler for winding the same into a coiled construct, the improvement comprising: (a) said slitting cutters continuously penetrating said web over the length of said parting lines to guide said strips in parallel, substantially coplanar tracking relation over a limited distance in the direction of feed of said web from said slitting cutters; and (b) said coiler operatively disposed with respect to said slitting cutters to take up said strips in the range of said tracking relation whereby said strips wind on said coiler without edge overhang throughout the diameter of said coiled construct.
Claim 26
Dependent Claim
125 words
In apparatus including a plurality of laterally spaced slitting cutters operative to form spaced, parallel parting lines in an elongated web of sheet metal to define parallel strips therebetween and a coiler for winding the same into a coiled construct, the improvement comprising: (a) said slitting cutters continuously penetrating said web over the length of said parting lines to guide said strips in parallel, substantially coplanar tracking relation over a limited distance in the direction of feed of said web from said slitting cutters; and (b) said coiler operatively disposed with respect to said slitting cutters to take up said strips in the range of said tracking relation whereby said strips wind on said coiler without edge overhang throughout the diameter of said coiled construct.
Claim 27
Dependent Claim
39 words
The improvement as recited in claim 20 including means associated with said slitting cutters for interconnecting the edges of said strips and extending the distance of parallel, coplanar tracking of said strips between said slitting cutters and said coiler.
Claim 28
Dependent Claim
105 words
The improvement as recited in claim 21 in which said slitting cutters comprise cooperating sets of rotary slitting cutters operative to engage the opposite surfaces of said sheet metal web in shearing relation to force the metal downwardly on one side of said parting line and upwardly on the other side thereof whereby steps are formed in said web along said parting lines to an extent sufficient to effect severence of said web therealong and including means associated with said cutters for intermittently reducing the extent of said step to less than that required for severence to form residuums of unsevered metal interconnecting said strips.
Claim 29
Dependent Claim
30 words
The improvement as recited in claim 22 in which said step reducing means comprises a radical relief formed in at least one of said cutters in each of said sets.
Claim 30
Dependent Claim
49 words
The improvement as recited in claim 21 in which said slitting cutters operate to sever said web continuously along said parting lines and means interposed between said slitting cutters and said coiler for rejoining the edges of said strips at least intermittently along the lengths of said parting lines.
Claim 31
Dependent Claim
32 words
The improvement as recited in claim 24 in which said strip edge rejoining means comprises means for pressing said edges along said parting lines to form a longitudinal joint between adjacent strips.
Claim 32
Independent Claim
74 words
A method of threading an elongated web of sheet metal for slitting comprising feeding the web from an unwind roll through a slitter, connecting, via the material of the web itself, the leading ends of the individual strips formed by the slitter as the leading end of the web passes through the slitter, continuing the feed of said connected leading ends to a take-up mandrel, and securing said connected leading ends to said mandrel.
Claim 33
Independent Claim
74 words
A method of threading an elongated web of sheet metal for slitting comprising feeding the web from an unwind roll through a slitter, connecting, via the material of the web itself, the leading ends of the individual strips formed by the slitter as the leading end of the web passes through the slitter, continuing the feed of said connected leading ends to a take-up mandrel, and securing said connected leading ends to said mandrel.
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) | 1982-11-05 | 1983-05-07 | 1983-11-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1986-11-05 | 1987-05-07 | 1987-11-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1990-11-05 | 1991-05-07 | 1991-11-06 | $7700.00 | Window Closed / Lapsed |