US3620952A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Mechanical apparatus for electrodeposition of cans
Assignee: Continental Can Co Inc
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Filing: 1969-06-02
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Granted: 1971-11-16
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Expires: 1989-06-02
Abstract
Abstract An automatic electrodeposition machine which electrodeposits a coating onto a metal can body. A number of batches of cans are moved in a series to a position above a coating solution bath and are lowered into the coating solution bath where coating is electrodeposited onto the cans. After electrodeposition has taken place, the coated cans are removed from the coating solution and are passed through an airblast which removes such of the coating solution as has adhered to the sides of the cans. The car bodies are then passed through a water rinse, then an airblast. The water rinse is made with deionized water because ordinary water leaves spots of material on the cans. Can bodies are now passed through any series of water rinses, airblasts, and the like, which may be deemed desirable in the circumstances, and finally, go into an oven. At the conclusion of these processes, a clean, coated can is obtained.
Inventors
- 👤 Wayne T Chiappe
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 17:26
CPC Classifications
B; B65; B65G; B65G49/00; B65G49/02; B65G49/04; B65G49/0409
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
63 words
An apparatus for electrodepositing a coating onto can bodies as set forth in claim 1 in which: said first means comprises: a bar having contours on its upstream side which cause said can bodies on said conveyor to pack in a way that each can body touches six other can bodies to bring about the maximum number of cans per unit of area.
Claim 2
Dependent Claim
66 words
An apparatus for electrodepositing a coating onto can bodies as set forth in claim 1 in which: said platform means comprises: a perforated plate yieldably suspended above said tank; vertical guide means slidably connected to said plate at several points for allowing said plate to descend into the tank with its lateral surface parallel to the horizontal; and biasing means for urging said perforated plate upwardly.
Claim 3
Dependent Claim
82 words
An apparatus for electrodepositing a coating onto can bodies as set forth in claim 1 in which said means for pressing said platform and can bodies into said tank comprises: a pressure plate mounted directly above the perforated plate; and motor means for moving said pressure plate in a vertical direction whereby said pressure plate pushes said perforated plate into said tank and said pressure plate and said perforated plate are within said tank as said pressure plate approaches its lowered position.
Claim 4
Dependent Claim
116 words
An apparatus for electrodepositing a coating onto can bodies as set forth in claim 4 in which: a can-centering plate is mounted for vertical reciprocating motion above said pressure plate and resting on said pressure plate; can-centering pins are mounted on said can-centering plate in a pattern to fit inside of said cans and space each said can body a small distance from each other can body; passageways in said pressure plate whereby said can centering pins pass through said pressure plate and enter the interior of said can bodies; and stop means for limiting the distance that said can-centering plate follows said pressure plate in its descent whereby said centering pins remain above said tank.
Claim 5
Dependent Claim
79 words
An apparatus for electrodepositing a coating onto can bodies as set forth in claim 5 in which said electric potential applying means comprises: a stationary electrode plate mounted in said tank; at least one contacting electrode mounted on said plate and placed in electrical contact with said can body; and at least one electrode mounted on said plate and spaced from said can whereby electric current may flow between said electrodes and deposit coating material onto said can body.
Claim 6
Dependent Claim
62 words
An apparatus for electroplating a coating onto can bodies as set forth in claim 6 in which: said electrical contacting electrodes are mounted so that said can bodies, when they are being lowered into said tank, rub against said electrical contacting electrodes and scrape the coating off said electrodes whereby an electrical contact is made between said electrodes and said can bodies.
Claim 7
Dependent Claim
99 words
An apparatus for electrodepositing a coating onto can bodies as set forth in claim 6 together comprising: a first bar mounted over said conveyor with its long axis transverse to the direction of travel of said conveyor and parallel to the main surface of said conveyor; motor means for raising and lowering said first bar when said can bodies have filled said conveyor to a predetermined amount; and finger means mounted on the bottom side of said first bar for insertion into a first row of said can bodies to halt travel of said can bodies on said conveyor.
Claim 8
Dependent Claim
152 words
An apparatus for electrodepositing a coating onto can bodies as set forth in claim 8 further comprising: a second bar mounted over said conveyor with its long axis parallel to and adjacent to said first bar and bEing located between said periodic halting means and said first bar, and above a second row of cans; motor means for moving said second bar from a raised position adjacent said first bar to a lowered position adjacent the tops of said can bodies, then laterally past the edge of said platform means and thence upwardly and return to the first raised position; and finger means mounted on the bottom side of said second bar for insertion into said second row of can bodies whereby when said bar having contours on its upstream side is raised, said stop finger means moves said can bodies onto said means platform and against a solution tank stop bar.
Claim 9
Dependent Claim
41 words
An apparatus for electroplating a coating onto can bodies as set forth in claim 9 further comprising: a discharge bar mounted between said conveyor and said tank for moving said coated can bodies from said platform means onto a further conveyor.
References Cited (Backward Citations)
US3083716A
Cited
US3276983A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-11-15 | 1975-05-17 | 1975-11-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-11-15 | 1979-05-17 | 1979-11-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-11-15 | 1983-05-17 | 1983-11-16 | $7700.00 | Window Closed / Lapsed |