Patent US5507166A successfully refreshed from Google Patents.
US5507166A
Expired / Lapsed
US
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Apparatus for stripping workpieces
Assignee: Coors Brewing Co
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Filing: 1994-08-23
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Granted: 1996-04-16
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Expires: 2014-08-23
Abstract
Abstract Apparatus for stripping a cylindrical workpiece, such as a can body, from a cylindrical supporting device, such as a punch in a can body making machine, using a plurality of circumferentially spaced apart fingers which are mounted for radial and linear sliding movement between a non-stripping location and a stripping location.
Inventors
- 👤 Charles A. Orlick
- 👤 Roger A. Hahn
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 17:13
CPC Classifications
B; B21; B21D; B21D45/00; B21D45/06; B21D45/065
Claims Analysis
Total Claims: 18
Claim 1
Independent Claim
239 words
Apparatus for stripping a cylindrical workpiece from a cylindrical supporting device on which the cylindrical workpiece is supported so that the cylindrical workpiece has a leading end surface during the return stroke of the cylindrical supporting device comprising: housing means for supporting the apparatus circumjacent the cylindrical workpiece and the cylindrical supporting device; a plurality of fingers for stripping said cylindrical workpiece from said cylindrical supporting device; mounting means for mounting each of said plurality of fingers for sliding movement that is radial and linear; each of said plurality of fingers having an end portion so that, when said plurality of fingers are in their radially innermost location, said plurality of fingers are at a location to be contacted by said leading end surface to remove said cylindrical workpiece; abutment means on each of said fingers and on said housing to limit the radially inward movement of said plurality of fingers; first moving means for moving each of said plurality of fingers in a radially inward direction; said stripping fingers, when in said radially innermost location, are in contact with the outer surface of said generally cylindrical supporting device and said abutment means are in a spaced apart relationship; second moving means for moving each of said plurality of fingers in a radially outward direction; and guide means between and in contact with adjacent fingers for guiding the movement of said fingers in said radially inward and outward directions.
Claim 2
Dependent Claim
239 words
Apparatus for stripping a cylindrical workpiece from a cylindrical supporting device on which the cylindrical workpiece is supported so that the cylindrical workpiece has a leading end surface during the return stroke of the cylindrical supporting device comprising: housing means for supporting the apparatus circumjacent the cylindrical workpiece and the cylindrical supporting device; a plurality of fingers for stripping said cylindrical workpiece from said cylindrical supporting device; mounting means for mounting each of said plurality of fingers for sliding movement that is radial and linear; each of said plurality of fingers having an end portion so that, when said plurality of fingers are in their radially innermost location, said plurality of fingers are at a location to be contacted by said leading end surface to remove said cylindrical workpiece; abutment means on each of said fingers and on said housing to limit the radially inward movement of said plurality of fingers; first moving means for moving each of said plurality of fingers in a radially inward direction; said stripping fingers, when in said radially innermost location, are in contact with the outer surface of said generally cylindrical supporting device and said abutment means are in a spaced apart relationship; second moving means for moving each of said plurality of fingers in a radially outward direction; and guide means between and in contact with adjacent fingers for guiding the movement of said fingers in said radially inward and outward directions.
Claim 3
Dependent Claim
13 words
Apparatus as in claim 1 wherein: said first moving means comprise resilient means.
Claim 4
Dependent Claim
72 words
Apparatus as in claim 1 wherein said mounting means comprise: an annular base support; said annular base support having a radially inner portion; said guide means comprise a plurality of circumferentially spaced apart guide members projecting axially outwardly from said radially inner portion; a support surface between adjacent pairs of said guide members; and one of said plurality of fingers positioned for sliding movement in radial linear directions on each support surface.
Claim 5
Dependent Claim
24 words
Apparatus as in claim 2 and further comprising: a recess formed in said annular base support; and an electromagnetic coil mounted in said recess.
Claim 6
Dependent Claim
14 words
Apparatus as in claim 2 wherein: said second moving means comprise an electromagnetic means.
Claim 7
Dependent Claim
29 words
Apparatus as in claim 3 wherein said abutment means comprise: an abutment surface on said radially inner portion; and an abutment surface on each of said plurality of fingers.
Claim 8
Dependent Claim
13 words
Apparatus as in claim 6 wherein: said first moving means comprise resilient means.
Claim 9
Dependent Claim
14 words
Apparatus as in claim 7 wherein: said second moving means comprise an electromagnetic means.
Claim 10
Dependent Claim
28 words
Apparatus as in claim 7 wherein: said resilient means comprise a coiled spring mounted in an opening having an abutment surface in each of said plurality of fingers.
Claim 11
Dependent Claim
19 words
Apparatus as in claim 4 wherein: said fingers and said annular base support are formed from a magnetic material.
Claim 12
Dependent Claim
71 words
Apparatus as in claim 10 wherein said mounting means comprise: an annular base support; said annular base support having a radially inner portion; said guide means comprise a plurality of circumferentially spaced apart guide members projecting axially outwardly from said radially inner portion; a support surface between adjacent pairs of guide members; and one of said plurality of fingers positioned for sliding movement in radial linear directions on each support surface.
Claim 13
Dependent Claim
29 words
Apparatus as in claim 11 wherein said abutment means comprise: an abutment surface on said radially inner portion; and an abutment surface on each of said plurality of fingers.
Claim 14
Dependent Claim
44 words
Apparatus as in claim 12 and further comprising: an annular retaining member mounted on said annular base support for contact by said coiled springs to urge said plurality of fingers in a radially inward direction; and a cover secured to said annular base support.
Claim 15
Dependent Claim
27 words
Apparatus as in claim 13 wherein said retaining member comprises: an inner ring formed from a non-magnetic material; and an outer ring formed from a magnetic material.
Claim 16
Dependent Claim
21 words
Apparatus as in claim 1 wherein: said first moving means comprise electromagnetic means; and said second moving means comprise electromagnetic means.
Claim 17
Dependent Claim
24 words
Apparatus as in claim 15 wherein: said stripping fingers, when in said radially innermost location, are in contact with said generally cylindrical supporting device.
Claim 18
Dependent Claim
22 words
Apparatus as in claim 15 wherein: said stripping fingers, when in said radially innermost location, are adjacent said generally cylindrical supporting device.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1999-04-16 | 1999-10-16 | 2000-04-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2003-04-16 | 2003-10-16 | 2004-04-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2007-04-16 | 2007-10-16 | 2008-04-16 | $7700.00 | Window Closed / Lapsed |