US3864995A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Can trimmer device
Assignee: Kaiser Aluminum and Chemical Corp
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Filing: 1973-12-11
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Granted: 1975-02-11
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Expires: 1993-12-11
Abstract
Abstract Improved can trimmer device for circumferentially trimming the ragged edge of an open ended metal can wherein a rotatable mandrel, that includes a uniquely biased solid cutting anvil, is utilized to engage a metal can from the inside in an improved fashion and to cooperate with a rotatable outside cutter head for cleanly cutting and severing the ragged edge from the open end portion of a can body in the form of a scrap ring.
Inventors
- 👤 Cornelis Langewis
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 09:35
CPC Classifications
B; B23; B23B; B23B5/00; B23B5/14; B21; B21D; B21D51/00; B21D51/16; B21D51/26; B21D51/2615; B21D51/2638; Y; Y10; Y10T; Y10T82/00; Y10T82/16; Y10T82/16147; Y10T82/16196; Y10T82/16213; Y10T82/16426; Y10T82/16639; Y10T82/16967
Claims Analysis
Total Claims: 29
Claim 1
Independent Claim
272 words
A device for trimming an open ended metal can and the like comprising the combination of a carriage, a rotatable outside cutter and a rotatable mandrel mounted on said carriage, said mandrel including an inside cutter and rigid anvil means provided with a can support surface, a rotatable tail stock holder and support spaced from but axially aligned with said mandrel, conveyor means for selectively supplying an open ended can to said mandrel and said tail stock holder and support, drive means synchronized with said conveyor means for selectively shifting said carriage relative to said conveyor means to effect an insertion of the anvil means along with the inside cutter a relatively small amount into an open ended can supplied to the trimming device by the conveyor means and to cause a displacement of the open ended can relative to said conveyor means and a bottoming of the can upon and against said tail stock holder and support, means for moving said outside cutter into cutting contact with a selected portion of the sidewall of the can and along a cutting plane located in offset relation to said inside cutter and the can support surface of the anvil means when the can is displaced from the conveyor means so as to produce a uniform nonspiral trimming and severing of the entire ragged open end of the can from the remainder of the can and biasing means for holding the outside cutter in the said cutting plane and relative to said selected portion of the can sidewall during the full trimming operation to effect said uniform and non-spiral trimming of the can sidewall.
Claim 2
Independent Claim
272 words
A device for trimming an open ended metal can and the like comprising the combination of a carriage, a rotatable outside cutter and a rotatable mandrel mounted on said carriage, said mandrel including an inside cutter and rigid anvil means provided with a can support surface, a rotatable tail stock holder and support spaced from but axially aligned with said mandrel, conveyor means for selectively supplying an open ended can to said mandrel and said tail stock holder and support, drive means synchronized with said conveyor means for selectively shifting said carriage relative to said conveyor means to effect an insertion of the anvil means along with the inside cutter a relatively small amount into an open ended can supplied to the trimming device by the conveyor means and to cause a displacement of the open ended can relative to said conveyor means and a bottoming of the can upon and against said tail stock holder and support, means for moving said outside cutter into cutting contact with a selected portion of the sidewall of the can and along a cutting plane located in offset relation to said inside cutter and the can support surface of the anvil means when the can is displaced from the conveyor means so as to produce a uniform nonspiral trimming and severing of the entire ragged open end of the can from the remainder of the can and biasing means for holding the outside cutter in the said cutting plane and relative to said selected portion of the can sidewall during the full trimming operation to effect said uniform and non-spiral trimming of the can sidewall.
Claim 3
Dependent Claim
48 words
A device as set forth in claim 1 wherein a portion of the anvil means located adjacent the can support surface thereof is provided with a relieved area which defines an opening for receiving the outside cutter after the outside cutter cuts through the sidewall of the can.
Claim 4
Dependent Claim
29 words
A device as set forth in claim 1, wherein said anvil means is provided with pocket means for removably receiving and anchoring the inside cutter in a cutting position.
Claim 5
Dependent Claim
23 words
A device as set forth in claim 1 wherein the drive means for shifting the carriage comprises a cam and cam follower means.
Claim 6
Dependent Claim
29 words
A device as set forth in claim 1 wherein said means for moving said outside cutter into cutting contact with the sidewall of the can comprises a cam means.
Claim 7
Dependent Claim
30 words
A device as set forth in claim 1 including a common drive means for rotating said mandrel and said tail stock holder and support at the same rate of speed.
Claim 8
Dependent Claim
56 words
A device as set furth in claim 1 including a stripper means associated with said mandrel for stripping the scrap ring of ragged end material resulting from the cutting operation and the trimmed can from the mandrel as the carriage and mandrel are returned to their original starting positions at the end of the cutting operation.
Claim 9
Dependent Claim
19 words
A device as set forth in claim 1 including means for resiliently mounting the outside cutter on the carriage.
Claim 10
Dependent Claim
32 words
A device as set forth in claim 1 including a common drive means for rotating said mandrel said tail stock holder and support said carriage shifting drive means and said conveyor means.
Claim 11
Dependent Claim
49 words
A device as set forth in claim 1 wherein said tail stock holder and support are provided with valve and piping means for selectively placing a vacuum upon or directing a pulse of air against the bottom of a can in contact with the tail stock holder and support.
Claim 12
Independent Claim
338 words
A device for trimming an open ended metal can body and the like comprising the combination of a carriage, a rotatable outside cutter and a rotatable mandrel mounted on said carriage, said mandrel being provided with an inside can body cuTter and rigid anvil means provided with a can body support surface, a rotatably tail stock holder and support spaced from but axially aligned with said mandrel, a conveyor means for supplying open ended can bodies to said mandrel and said tail stock holder and support, means for operating said conveyor means and for intermittently aligning an open ended can body located on said conveyor means with said mandrel and tail stock holder and support, drive means synchronized with said conveyor means for selectively shifting said carriage relative to said conveyor means so as to insert said rigid anvil means along with said inside cutter a relatively small amount into an open ended can body located on the conveyor means and in supporting relation thereto and to cause a displacement of the can body relative to the conveyor means and a bottoming of the can body upon and against said tail stock holder and support, means for moving said outside cutter into cutting contact with a selected portion of the sidewall of the can body held between the rigid anvil means and tail stock holder and support and along a cutting plane located in offset relation to said inside cutter and the can body support surface of the anvil means as the can body remains displaced from the conveyor means so as to effect a substantially uniform and non-spiral trimming and severing of the entire ragged open end portion of the can body from the can body paper and biasing means for holding the outside cutter in the same cutting plane relative to the said selected portion of the can body sidewall during the complete trimming and severing operation to assure said uniform and non-spiral trimming and severing of the ragged open end portion of the can body.
Claim 13
Independent Claim
338 words
A device for trimming an open ended metal can body and the like comprising the combination of a carriage, a rotatable outside cutter and a rotatable mandrel mounted on said carriage, said mandrel being provided with an inside can body cuTter and rigid anvil means provided with a can body support surface, a rotatably tail stock holder and support spaced from but axially aligned with said mandrel, a conveyor means for supplying open ended can bodies to said mandrel and said tail stock holder and support, means for operating said conveyor means and for intermittently aligning an open ended can body located on said conveyor means with said mandrel and tail stock holder and support, drive means synchronized with said conveyor means for selectively shifting said carriage relative to said conveyor means so as to insert said rigid anvil means along with said inside cutter a relatively small amount into an open ended can body located on the conveyor means and in supporting relation thereto and to cause a displacement of the can body relative to the conveyor means and a bottoming of the can body upon and against said tail stock holder and support, means for moving said outside cutter into cutting contact with a selected portion of the sidewall of the can body held between the rigid anvil means and tail stock holder and support and along a cutting plane located in offset relation to said inside cutter and the can body support surface of the anvil means as the can body remains displaced from the conveyor means so as to effect a substantially uniform and non-spiral trimming and severing of the entire ragged open end portion of the can body from the can body paper and biasing means for holding the outside cutter in the same cutting plane relative to the said selected portion of the can body sidewall during the complete trimming and severing operation to assure said uniform and non-spiral trimming and severing of the ragged open end portion of the can body.
Claim 14
Dependent Claim
46 words
A device as set forth in claim 11 wherein the portion of the anvil means located adjacent the can support surface thereof is provided with a relief area which defines an opening for receiving the outside after the outside cutter cuts through the can body sidewall.
Claim 15
Dependent Claim
28 words
A device as set forth in claim 11 wherein the anvil means is provided with pocket means for receiving and anchoring the inside cutter in a cutting position.
Claim 16
Dependent Claim
30 words
A device as set forth in claim 11 including a common drive means for rotating said mandrel and said tail stock holder and support at the same rate of speed.
Claim 17
Dependent Claim
59 words
A device as set forth in claim 11 including a stripper means associated with said mandrel for stripping the scrap ring formed by the severed ragged open end portion of the can body and trimmed can body from the mandrel at the end of the cutting operation as the carriage and mandrel are returned to their original starting positions.
Claim 18
Dependent Claim
18 words
A device as set forth in claim 11 including means resiliently mounting the outside cutter on the carriage.
Claim 19
Dependent Claim
33 words
A device as set forth in claim 1 including a common drive means for rotating said mandrel said tail stock holder and support said carriage shifting drive means and said conveyor operating means.
Claim 20
Dependent Claim
50 words
A device as set forth in claim 11 wherein said tail stock holder and support are provided with valve and piping means for selectively placing a vacuum upon or directing a pulse of air against the bottom of a can body in contact with the tail stock holder and support.
Claim 21
Independent Claim
317 words
A device for trimming an open ended metal can and the like comprising the combination of a carriage, a rotatable outside cutter and a rotatable mandrel mounted on said carriage, said mandrel including an inside cutter and rigid anvil means provided with a can sidewall support surface, a rotatable tail stock holder and support spaced from but axially aligned with said mandrel, an indexing pocketed conveyor means for supplying an open ended can to said mandrel and said tail stock holder and support, means for indexing said conveyor means to successively align the pockets thereof and the open ended cans in said pockets with said mandrel and tail stock holder and support, drive means synchronized with said conveyor means for selectively shifting said carriage relative to a given pocket of said conveyor means during a dwell period of said conveyor means so as to insert said rigid anvil means along with the inside cutter a relatively small amount into an open ended can located on the conveyor means and cause a slight displacement of the can relative to said given pocket of the conveyor means and a bottoming of the can upon and against said tail stock holder and support, means for moving said outside cutter into cutting contact with a selected portion of the sidewall of the can and along a cutting plane located in offset relation to said inside cutter and the can sidewall supporting surface of the anvil means when the can is displaced from the pocket of the conveyor means so as to effect a uniform and non-spiral trimming and severing of the entire ragged open end portion of the can from the remainder of the can and biasing means for holding the outside cutter in the same cutting plane relative to said selected portion of the can sidewall during the full trimming operation to insure said uniform and non-spiral trimming and severing.
Claim 22
Independent Claim
317 words
A device for trimming an open ended metal can and the like comprising the combination of a carriage, a rotatable outside cutter and a rotatable mandrel mounted on said carriage, said mandrel including an inside cutter and rigid anvil means provided with a can sidewall support surface, a rotatable tail stock holder and support spaced from but axially aligned with said mandrel, an indexing pocketed conveyor means for supplying an open ended can to said mandrel and said tail stock holder and support, means for indexing said conveyor means to successively align the pockets thereof and the open ended cans in said pockets with said mandrel and tail stock holder and support, drive means synchronized with said conveyor means for selectively shifting said carriage relative to a given pocket of said conveyor means during a dwell period of said conveyor means so as to insert said rigid anvil means along with the inside cutter a relatively small amount into an open ended can located on the conveyor means and cause a slight displacement of the can relative to said given pocket of the conveyor means and a bottoming of the can upon and against said tail stock holder and support, means for moving said outside cutter into cutting contact with a selected portion of the sidewall of the can and along a cutting plane located in offset relation to said inside cutter and the can sidewall supporting surface of the anvil means when the can is displaced from the pocket of the conveyor means so as to effect a uniform and non-spiral trimming and severing of the entire ragged open end portion of the can from the remainder of the can and biasing means for holding the outside cutter in the same cutting plane relative to said selected portion of the can sidewall during the full trimming operation to insure said uniform and non-spiral trimming and severing.
Claim 23
Dependent Claim
49 words
A device as set forth in claim 19 wherein a portion of the anvil means located adjacent the can sidewall support surface thereof is provided with a relief area which defines an opening for receiving the outside cutter after the outside cutter cuts through the sidewall of the can.
Claim 24
Dependent Claim
32 words
A device as set forth in claim 19 wherein said anvil means is provided with pocket means for receiving and anchoring the inside cutter to the mandrel and in a cutting position.
Claim 25
Dependent Claim
49 words
The device as set forth in claim 19 wherein said tail stock holder and support are provided with valve and piping means for selectively placing a vacuum upon or directing a pulse of air against the bottom of a can in contact with the tail stock holder and support.
Claim 26
Independent Claim
436 words
A system for handling and transferring a drawn and ironed metal can from a draw and iron press to a can trimming device where the open end of the can is trimmed and the trimmed can then discharged onto a takeoff conveyor while the trimmed scrap material is removed from the trimming device comprising the combination of a draw and iron press, a power means for said press, a device for trimming the ragged ends of the cans drawn and ironed on said press from the cans, said device being disposed adjacent the tool end of said press and comprising the combination of a carriage, a rotatable mandrel mounted on the carriage, said mandrel also being provided with an inside cutter and rigid anvil means having a can sidewall support surface, a rotatable tail stock holder and support spaced from but axially aligned with said mandrel, an indexing pocketed conveyor means for supplying a can to said mandrel and said tail stock holder and support, means for indexing said conveyor means to successively align the pockets thereof and the open ended cans in said pockets with said mandrel and tail stock holder and support, means synchronized with said conveyor means for selectively shifting said carriage relative to a given pocket of said conveyor means during a dwell period of said conveyor means so as to insert said rigid anvil means and inside cutter a relatively small amount into an open ended can located on the conveyor means and cause a slight displacement of the can from its associated conveyor means pocket and a bottoming of the can upon and against said tail stock holder and support, means for moving said outside cutter into cutting contact with a selected portion of the sidewall of the can and along a cutting plane located in slight offset relation to said inside cutter and the can sidewall support surface of the anvil means when the can is displaced from the pocket of the conveyor means so as to effect a uniform and non-spiral trimming of the ragged open end of the can, means for rotating said mandrel and tail stock holder and support, means for driving said carriage shifting means, power takeoff means connecting said press power means to said mandrel as well as to said tail stock holder and support rotating means and to said carriage shifting means and to said conveyor means indexing means and biasing means for holding the outside cutter in the same cutting plane relative to said selected portion of the can sidewall during the full trimming operation to insure said uniform and non-spiral trimming.
Claim 27
Independent Claim
436 words
A system for handling and transferring a drawn and ironed metal can from a draw and iron press to a can trimming device where the open end of the can is trimmed and the trimmed can then discharged onto a takeoff conveyor while the trimmed scrap material is removed from the trimming device comprising the combination of a draw and iron press, a power means for said press, a device for trimming the ragged ends of the cans drawn and ironed on said press from the cans, said device being disposed adjacent the tool end of said press and comprising the combination of a carriage, a rotatable mandrel mounted on the carriage, said mandrel also being provided with an inside cutter and rigid anvil means having a can sidewall support surface, a rotatable tail stock holder and support spaced from but axially aligned with said mandrel, an indexing pocketed conveyor means for supplying a can to said mandrel and said tail stock holder and support, means for indexing said conveyor means to successively align the pockets thereof and the open ended cans in said pockets with said mandrel and tail stock holder and support, means synchronized with said conveyor means for selectively shifting said carriage relative to a given pocket of said conveyor means during a dwell period of said conveyor means so as to insert said rigid anvil means and inside cutter a relatively small amount into an open ended can located on the conveyor means and cause a slight displacement of the can from its associated conveyor means pocket and a bottoming of the can upon and against said tail stock holder and support, means for moving said outside cutter into cutting contact with a selected portion of the sidewall of the can and along a cutting plane located in slight offset relation to said inside cutter and the can sidewall support surface of the anvil means when the can is displaced from the pocket of the conveyor means so as to effect a uniform and non-spiral trimming of the ragged open end of the can, means for rotating said mandrel and tail stock holder and support, means for driving said carriage shifting means, power takeoff means connecting said press power means to said mandrel as well as to said tail stock holder and support rotating means and to said carriage shifting means and to said conveyor means indexing means and biasing means for holding the outside cutter in the same cutting plane relative to said selected portion of the can sidewall during the full trimming operation to insure said uniform and non-spiral trimming.
Claim 28
Dependent Claim
21 words
A device as set forth in claim 1 including means for adjusting the position of said tail stock holder and support.
Claim 29
Dependent Claim
21 words
A device as set forth in claim 11 including means for adjusting the position of said tail stock holder and support.
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) | 1978-02-10 | 1978-08-12 | 1979-02-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-02-10 | 1982-08-12 | 1983-02-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-02-10 | 1986-08-12 | 1987-02-11 | $7700.00 | Window Closed / Lapsed |