US3928883A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for removal of lithography from metal surfaces
Assignee: Individual
•
Filing: 1974-01-16
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Granted: 1975-12-30
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Expires: 1994-01-16
Abstract
Abstract The applied finish or lithography of articles, such as flat metal plates or cylindrical containers is removed by passing the article through a zone of intense heat and then immediately into a second zone where the surface of the article is brushed while hot and while the lithography is soft. A plurality of articles are urged seriatim along a linear path through an induction heating coil and are then engaged by one or more wire brushes which also rotate a container during the brushing operation. The process may be carried out rapidly and automatically without damage to the soldered seam or metallurgy of a container.
Inventors
- 👤 Joseph J Gregory
- 👤 Jack R Randolph
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 06:53
CPC Classifications
C; C23; C23G; C23G5/00; B; B41; B41F; B41F23/00; B41F23/005; B41M; B41M7/00
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
80 words
Apparatus for removing lithography from the cylindrical outer surface of a container comprising conveyor means for moving said container axially along its outer surface, means for heating the container substantially uniformly while being thus moved to a temperature sufficient to soften the lithography without disturbing the structure of the container, brush means for brushing the cylindrical surface of the container while it is being moved, and means to allow rotation of said container while being brushed by said brush means.
Claim 2
Dependent Claim
80 words
Apparatus for removing lithography from the cylindrical outer surface of a container comprising conveyor means for moving said container axially along its outer surface, means for heating the container substantially uniformly while being thus moved to a temperature sufficient to soften the lithography without disturbing the structure of the container, brush means for brushing the cylindrical surface of the container while it is being moved, and means to allow rotation of said container while being brushed by said brush means.
Claim 3
Dependent Claim
73 words
Apparatus for removing lithography from the cylindrical outer surface of a container, comprising conveyor means for moving said container axially on its outer surface, pusher means at the entrance end of said conveyor means for pushing successive containers onto said conveyor means, means for heating the container substantially uniformly while being thus moved to a temperature sufficient to soften the lithography, and brush means For brushing the cylindrical surface of the heated container.
Claim 4
Dependent Claim
73 words
Apparatus for removing lithography from the cylindrical outer surface of a container, comprising conveyor means for moving said container axially on its outer surface, pusher means at the entrance end of said conveyor means for pushing successive containers onto said conveyor means, means for heating the container substantially uniformly while being thus moved to a temperature sufficient to soften the lithography, and brush means For brushing the cylindrical surface of the heated container.
Claim 5
Dependent Claim
19 words
The apparatus of claim 2 including means for rotating the container while being operated thereon by said brush means.
Claim 6
Dependent Claim
26 words
The apparatus of claim 1 wherein pusher means are provided at the entrance end of said conveyor means for pushing successive containers onto said conveyor means.
Claim 7
Dependent Claim
49 words
The apparatus of claim 1 wherein said conveyor means comprises a pair of spaced belts moving in the same direction, and said means for heating comprises an induction coil surrounding said belts and having an internal diameter large enough to allow passage of said container therethrough on said belts.
Claim 8
Dependent Claim
26 words
The apparatus of claim 1 wherein said brush means comprises a plurality of spaced brushes rotating on an axis parallel to the axis of said container.
Claim 9
Dependent Claim
17 words
The apparatus of claim 6 wherein a pair of spaced rods support said container beneath said brushes.
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) | 1978-12-29 | 1979-06-30 | 1979-12-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-12-29 | 1983-06-30 | 1983-12-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-12-29 | 1987-06-30 | 1987-12-30 | $7700.00 | Window Closed / Lapsed |