US3881380A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Scrap disposal mechanism for metallic can body trimmers
Assignee: Chromalloy Corp
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Filing: 1973-01-12
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Granted: 1975-05-06
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Expires: 1993-01-12
Abstract
Abstract A one-piece metallic can body positioned stationary on a mandrel has a can body open end trimmed by cutting a scrap ring therefrom which, after such trimming, still surrounds portions of the trimmer mechanisms. During the can body trimming, the can body open end portion ultimately forming the scrap ring, although stationary during trimming, is received in slotted scrap positioners of diametrically opposite, constantly rotating nipper assemblies with the scrap ring immediately being rotated by the scrap positioners upon complete severance from the can body. As the nipper assemblies rotate rotating the now severed scrap ring, the nipper assemblies are actuated, one at a time, by an actuator at a set circumferential location, the nipper assemblies having nipper rods cammed reciprocally inwardly along the scrap positioners to cut the scrap ring into two separated parts. As soon as the scrap ring parts are separated, they are urged outwardly by centrifical force away from the trimmer components and ultimately fall downwardly into a scrap disposal chute. A constantly rotating, peripherally threaded, scrap removal cylinder is positioned inwardly of the nipper assemblies and trimmer mechanisms for constantly urging any portions of the scrap ring or pieces axially away from the trimmer mechanisms in the event they are displaced inwardly thereagainst.
Inventors
- 👤 Elpidifor Paramonoff
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 22:16
CPC Classifications
B; B23; B23D; B23D31/00; B23D31/001; Y; Y10; Y10S; Y10S83/00; Y10S83/923; Y10T; Y10T83/00; Y10T83/202; Y10T83/2092; Y10T83/2181; Y10T83/2183; Y10T83/2185; Y10T83/384; Y10T83/392; Y10T83/393; Y10T83/465; Y10T83/4766; Y10T83/4795; Y10T83/4812; Y10T83/647; Y10T83/654; Y10T83/808; Y10T83/825; Y10T83/869; Y10T83/8874
Claims Analysis
Total Claims: 25
Claim 1
Independent Claim
206 words
In a scrap ring disposal mechanism for metallic can body trimmers and the like of the type wherein a metallic can body is positioned on a mandrel with can body walls at a can body open end being trimmed to sever an annular scrap ring therefrom; the combination of: an annular rotatable frame generally radially outwardly surrounding said can body open end to be trimmed; scrap positioning means on said frame for axially receiving a portion of said can body walls at said body open end of a can body positioned on said mandrel including at least a part of said scrap ring to be severed from said can body during said trimming, said scrap positioning means rotating said scrap ring at least after said scrap ring severing and during rotation of said frame; at least two circumferentially spaced nipper assemblies on said frame each including nipper means actuatable for completely cutting said scrap ring into separated scrap pieces at said nipper assembly; drive means for rotating said frame; nipper actuating means at a circumferential location generally stationary relative to said frame rotation for actuating said nipper means one at a time after said scrap ring severing and during nipper assembly movement past said circumferential location.
Claim 2
Dependent Claim
206 words
In a scrap ring disposal mechanism for metallic can body trimmers and the like of the type wherein a metallic can body is positioned on a mandrel with can body walls at a can body open end being trimmed to sever an annular scrap ring therefrom; the combination of: an annular rotatable frame generally radially outwardly surrounding said can body open end to be trimmed; scrap positioning means on said frame for axially receiving a portion of said can body walls at said body open end of a can body positioned on said mandrel including at least a part of said scrap ring to be severed from said can body during said trimming, said scrap positioning means rotating said scrap ring at least after said scrap ring severing and during rotation of said frame; at least two circumferentially spaced nipper assemblies on said frame each including nipper means actuatable for completely cutting said scrap ring into separated scrap pieces at said nipper assembly; drive means for rotating said frame; nipper actuating means at a circumferential location generally stationary relative to said frame rotation for actuating said nipper means one at a time after said scrap ring severing and during nipper assembly movement past said circumferential location.
Claim 3
Dependent Claim
54 words
A scrap ring disposal mechanism as defined in claim 1 in which said nipper means are each actuatable against said scrap positioning means for completely cutting said scrap ring into said separated scrap pieces; and in which said nipper actuating means actuates said nipper means one at a time against said scrap positioning means.
Claim 4
Dependent Claim
49 words
A scrap ring disposal mechanism as defined in claim 1 in which each of said nipper means includes surface means thereon circumferentially movably engageable by a surface of said nipper actuating means for actuating said nipper means during said nipper assembly movement past said nipper actuating means circumferential location.
Claim 5
Dependent Claim
51 words
A scrap ring disposal mechanism as defined in claim 1 in which each of said nipper means includes cam surface means circumferentially movably engaged by a freely movable surface of said nipper actuating means for actuating said nipper means during said nipper assembly movement past said nipper actuating means circumferential location.
Claim 6
Dependent Claim
67 words
A scrap ring disposal mechanism as defined in claim 1 in which each of said nipper means includes cam surface means circumferentially movably engaged by a surface of said nipper actuating means during said actuation of said nipper means forcing at least a part of said nipper means inwardly and acting against said scrap positioning means to completely cut said scrap ring into said separated scrap pieces.
Claim 7
Dependent Claim
75 words
A scrap ring disposal mechanism as defined in claim 1 in which each of said nipper means includes a pivotal actuator pivotal inwardly against a generally radially reciprocal nipper rod, said pivotal actuator pivoting inwardly to move said nipper rod inwardly during said nipper means actuation to cut said scrap ring; and in which said nipper actuating means contacts said nipper means pivotal actuator for pivoting said pivotal actuator inwardly to actuate said nipper means.
Claim 8
Dependent Claim
121 words
A scrap ring disposal mechanism as defined in claim 1 in which each of said nipper means includes a pivotal actuator pivotal inwardly against a generally radially reciprocal nipper rod, said pivotal actuator pivoting inwardly to move said nipper rod inwardly during said nipper means actuation to cut said scrap ring; in which said nipper actuating meaNs contacts said nipper means pivotal actuator for pivoting said pivotal actuator inwardly to actuate said nipper means; and in which said scrap positioning means includes parts positioned adjacent a path of movement of each of said nipper means nipper rods and said nipper rods in their inward movements act against said scrap positionig means parts to cut said scrap ring into said scrap pieces.
Claim 9
Dependent Claim
146 words
A scrap ring disposal mechanism as defined in claim 1 in which each of said nipper means includes a pivotal actuator pivotal inwardly against a generally radially reciprocal nipper rod, said pivotal actuator pivoting inwardly to move said nipper rod inwardly during said nipper means actuation to cut said scrap ring; in which said nipper actuating means contacts said nipper means pivotal actuator for pivoting said pivotal actuator inwardly to actuate said nipper means; and in which said scrap positioning means includes parts at each of said spaced nipper assemblies with said parts having generally radial surfaces intersected by circumferentially extending slots through which portions of said scrap ring circumferentially extend, inner ends of said nipper means nipper rods in said nipper rod inward movement moving along said radial surfaces of said scrap positioning means parts to cut said scrap ring into said separated scrap pieces.
Claim 10
Dependent Claim
141 words
A scrap ring disposal mechanism as defined in claim 1 in which each of said nipper means includes a pivotal actuator having a generally circumferentially extending cam surface thereon, said actuator being pivotal inwardly against a generally radially reciprocal nipper rod, said pivotal actuator pivoting inwardly to move said nipper rod inwardly during said nipper rod actuation to cut said scrap ring; in which said nipper actuating means contacts said nipper means pivotal actuator by contacting said actuator cam surface and through said contact pivoting said pivotal actuator inwardly to actuate said nipper means; and in which said scrap positioning means includes parts positioned adjacent a path of movement of each of said nipper means nipper rods and said nipper rods in their inward movements act against said scrap positioning means parts to cut said scrap ring into said scrap pieces.
Claim 11
Dependent Claim
164 words
A scrap ring disposal mechanism as defined in claim 1 in which each of said nipper means includes a pivotal actuator pivotal inwardly against a generally radially reciprocal nipper rod, said pivotal actuator having an outwardly facing generally circumferentially extending cam surface, said pivotal actuator pivoting inwardly to move said nipper rod inwardly during said nipper means actuation to cut said scrap ring; in which said nipper actuating means contacts said nipper means pivotal actuator by contacting said actuating cam surface for pivoting said pivotal actuator inwardly to actuate said nipper means; and in which said scrap positioning means includes parts of each of said spaced nipper assemblies with said parts having generally radial surfaces intersected by circumferentially extending slots through which portions of said scrap ring circumferentially extend, inner ends of said nipper means nipper rods in said nipper rod inward movement moving along said radial surfaces of said scrap positioning means parts to cut said scrap ring into said separated scrap pieces.
Claim 12
Dependent Claim
194 words
A scrap ring disposal mechanism as defined in claim 1 in which each of said nipper means includes a pivotal actuator pivotal inwardly against a generally radially reciprocal nipper rod, said pivotal actuator having an outwardly facing generally circumferentially extending cam surface, said pivotal actuator pivoting inwardly to move said nipper rod inwardly during said nipper means actuation to cut said scrap ring; in which said nipper actuating means contacts said nipper means pivotal actuator by contacting said actuating cam surface for pivoting said pivotal actuator inwardly to actuate said nipper means; in which said scrap positioning means includes parts of each of said spaced nipper assemblies with said parts having generally radial surfaces intersected by circumferentially extending slots through which portions of said scrap ring circumferentially extend, inner ends of said nipper means nipper rods in said nipper rod inward movement moving along said radial surfaces of said scrap positioning means parts to cut said scrap ring into said separated scrap pieces; and in which said nipper actuating means includes a roller contacting said cam surfaces of said nipper means pivotal actuators for pivoting said pivotal actuators inwardly to actuate said nipper means.
Claim 13
Dependent Claim
70 words
A scrap ring disposal mechanism as defined in claim 1 in which scrap removal means is positioned generally radially inwardly of said scrap positioning means for tending to urge any of said scrap ring and said separated scrap pieces thereof in an axial direction away from said scrap ring severing from said can body open end and toward said scrap positioning means which move inwardly contacting said scrap removal means.
Claim 14
Dependent Claim
112 words
A scrap ring disposal mechanism as defined in claim 1 in which scrap removal means is positioned generally radially inwardly of said scrap positioning means for tending to urge any of said scrap ring and said separated scrap pieces thereof in an axial direction away from said scrap ring severing from said can body open end and toward said scrap positioning means which move inwardly contacting said scrap removal means, said scrap removal means including a constantly rotating cylinder having surface means thereon for tending to urge any of said scrap ring and separated scrap pieces in said axial direction away from said scrap ring severing from said can body open end.
Claim 15
Dependent Claim
116 words
A scrap ring disposal mechanism as defined in claim 1 in which scrap removal means is positioned generally radially inwardly of said scrap positioning means for tending to urge any of said scrap ring and said separated scrap pieces thereof in an axial direction away from said scrap ring severing from said can body open end and toward said scrap positioning means which move inwardly contacting said scrap removal means, said scrap removal means including a constantly rotating cylinder having threaded surface means thereon cut in a direction tending to urge any of said scrap ring and separated scrap pieces in said axial direction away from said scrap ring severing from said can body open end.
Claim 16
Dependent Claim
257 words
In a scrap ring disposal mechanism for metallic can body trimmers and the like of the type wherein a metallic can body is positioned on a mandrel with can body walls at a can body open end being trimmed to sever an annular scrap ring therefrom, said can body being retained stationary during said can body open end trimming; the combination of: an annular rotating frame generally radially outwardly surrounding said can body open end to be trimmed; scrap positioning means on said frame for axially receiving a portion of said can body walls at said can body open end of a can body positioned on said mandrel including at least a part of said scrap ring to be severed from said can body during said trimming, said scrap positioning means rotating relative to said scrap ring during said scrap ring severing and while said stationary can body retains said scrap ring stationary, said scrap positioning means engaging and rotating said scrap ring with said frame rotation upon completion of severing of said scrap ring from said can body and termination of support of said scrap ring by said can body; nipper assembly means for engaging said scrap ring during said scrap ring rotation by said scrap positioning means to completely cut said scrap ring into separated scrap pieces, said scrap pieces being urged radially outwardly by centrifical force upon said cutting separation thereof as a result of said scrap ring rotation by said scrap positioning means at time of said cutting by said nipper assembly means.
Claim 17
Dependent Claim
257 words
In a scrap ring disposal mechanism for metallic can body trimmers and the like of the type wherein a metallic can body is positioned on a mandrel with can body walls at a can body open end being trimmed to sever an annular scrap ring therefrom, said can body being retained stationary during said can body open end trimming; the combination of: an annular rotating frame generally radially outwardly surrounding said can body open end to be trimmed; scrap positioning means on said frame for axially receiving a portion of said can body walls at said can body open end of a can body positioned on said mandrel including at least a part of said scrap ring to be severed from said can body during said trimming, said scrap positioning means rotating relative to said scrap ring during said scrap ring severing and while said stationary can body retains said scrap ring stationary, said scrap positioning means engaging and rotating said scrap ring with said frame rotation upon completion of severing of said scrap ring from said can body and termination of support of said scrap ring by said can body; nipper assembly means for engaging said scrap ring during said scrap ring rotation by said scrap positioning means to completely cut said scrap ring into separated scrap pieces, said scrap pieces being urged radially outwardly by centrifical force upon said cutting separation thereof as a result of said scrap ring rotation by said scrap positioning means at time of said cutting by said nipper assembly means.
Claim 18
Dependent Claim
39 words
A scrap ring disposal mechanism as defined in claim 15 in which said nipper assembly means includes at least two circUmferentially spaced nipper assemblies each including nipper means for completely cutting said scrap ring into said separated scrap pieces.
Claim 19
Dependent Claim
71 words
A scrap ring disposal mechanism as defined in claim 15 in which said nipper assembly means includes at least two circumferentially spaced nipper assemblies each including nipper means for completely cutting said scrap ring into said separated scrap pieces, said nipper means being actuatable one at a time to complete said cutting of said scrap ring into said separated scrap pieces at actuation of the last actuated of said nipper means.
Claim 20
Dependent Claim
64 words
A scrap ring disposal mechanism as defined in claim 15 in which said nipper assembly means includes at least two circumferentially spaced nipper assemblies each including nipper means for completely cutting said scrap ring into said separated scrap pieces, each of said nipper means being operable against said scrap positioning means upon actuation thereof for cutting said scrap ring into said separated scrap pieces.
Claim 21
Dependent Claim
70 words
A scrap ring disposal mechanism as defined in claim 15 in which scrap removal means is positioned generally radially inwardly of said scrap positioning means for tending to urge any of said scrap ring and said separated scrap pieces thereof in an axial direction away from said scrap ring severing from said can body open end and toward said scrap positioning means which move inwardly contacting said scrap removal means.
Claim 22
Dependent Claim
179 words
In a scrap ring disposal mechanism for metallic can body trimmers and the like of the type wherein a metallic can body is positioned on a mandrel with can body walls at a can body open end being trimmed to sever an annular scrap ring therefrom; the combination of: scrap positioning means for axially receiving a portion of said can body walls at said can body open end of a can body positioned on said mandrel including at least a part of said scrap ring to be severed from said can body during said trimming; nipper assembly means actuatable for completely cutting said scrap ring into separated scrap pieces; nipper actuating means for actuating said nipper assembly means after said scrap ring severing; scrap removal means generally radially inwardly of said scrap positioning means for tending to urge any of said scrap ring and said separated scrap pieces thereof in an axial direction away from said scrap ring severing from said can body open end and toward said scrap positioning means which move inwardly contacting said scrap removal means.
Claim 23
Dependent Claim
179 words
In a scrap ring disposal mechanism for metallic can body trimmers and the like of the type wherein a metallic can body is positioned on a mandrel with can body walls at a can body open end being trimmed to sever an annular scrap ring therefrom; the combination of: scrap positioning means for axially receiving a portion of said can body walls at said can body open end of a can body positioned on said mandrel including at least a part of said scrap ring to be severed from said can body during said trimming; nipper assembly means actuatable for completely cutting said scrap ring into separated scrap pieces; nipper actuating means for actuating said nipper assembly means after said scrap ring severing; scrap removal means generally radially inwardly of said scrap positioning means for tending to urge any of said scrap ring and said separated scrap pieces thereof in an axial direction away from said scrap ring severing from said can body open end and toward said scrap positioning means which move inwardly contacting said scrap removal means.
Claim 24
Dependent Claim
47 words
A scrap ring disposal mechanism as defined in claim 20 in which said scrap removal means includes a constantly rotating cylinder having surface means thereon tending to urge any of said scrap ring and separated scrap pieces in said axial direction away from said scrap ring severing.
Claim 25
Dependent Claim
57 words
A scrap ring disposal mechanism as defined in claim 20 in which said scrap removal means includes a constantly rotating cylinder having surface means thereon comprised of a directional threaded surface threaded in a direction tending to urge any of said scrap ring and separated scrap pieces in said axial direction away from said scrap ring severing.
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) | 1978-05-05 | 1978-11-04 | 1979-05-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-05-05 | 1982-11-04 | 1983-05-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-05-05 | 1986-11-04 | 1987-05-06 | $7700.00 | Window Closed / Lapsed |