Claims
- 1. A method for the protection from corrosion of blank areas of sheet metal otherwise coated with a corrosion-proof layer, comprising the steps of continuously wetting a porous transfer roller with a rust-protective liquid material, rotating said transfer roller in contact with a porous applicator, and rotating said porous applicator in contact with the exposed blank edge portions of said coated sheet metal, thereby applying to said blank areas a permanent layer of said rust-protective material.
- 2. A method for the protection from corrosion of blank areas of sheet metal otherwise coated with a corrosion-proof layer, comprising the steps of dipping into a container of rust-protective material the lower ends of an applicator and a supply roller, lifting a predetermined quantity of said rust-protective material along the periphery of said supply roller, transferring said quantity of rust-protective agent to said applicator by rotating said applicator in contact with said supply roller, distributing said quantity evenly over the surface of said applicator, moving an exposed blank area of said sheet metal into contact with said applicator, and guidably advancing said applicator relative to said sheet metal, thereby applying to said blank areas a permanent layer of said rust-protective material.
- 3. A method for the protection from corrosion of blank areas of sheet metal otherwise coated with a corrosion-proof layer, comprising the steps of applying a rust-protective material to a transfer roller, rotating said transfer roller in contact with a continuous transfer belt so as to evenly coat said belt with said rust-protective material, applying the coated surface of said transfer belt to said blank areas, biasing a pressure roller into contact with said transfer belt, and guidably moving said pressure roller or said coated sheet metal relative to the other, thereby pressing against said blank areas a permanent layer of said rust-protective material.
- 4. A method for the protection from corrosion of blank edges of stamped-out recesses at the margin of sheet metal otherwise coated with a corrosion-proof layer, comprising the steps of stretching a length of self-adhesive, rust-resistant tape over a resiliently biased tensioning plate with the self-adhesive surface of said tape facing one of said stamped-out recesses, moving the blank edges of said stamped-out recesses into pressure contact with said length of tape, making an incision in said length of tape at the inner corner of said stamped-out recess, and folding said tape about the blank edges of said stamped-out recess, thereby covering said blank edges with an adherent layer of said rust-protective tape.
- 5. A method for the protection from corrosion of blank edges of a hole in sheet metal otherwise coated with a corrosion-proof layer, comprising the steps of applying a disc of self-adhesive, rust-resistant tape having an outer diameter exceeding that of said hole to each surface of the coated sheet metal surrounding said hole, and pressing the inwardly protruding portions of said discs against each other, thereby sealing the edges of said hole from corrosion.
- 6. A method as in claim 5, further comprising the step of stamping out from the center portion of said discs an opening of diameter smaller than that of said hole in said coated sheet metal.
- 7. A method as in claim 5, further comprising the steps of carrying self-adhesive, rust-resistant tape on a tension belt, and stamping said discs out of said tape through openings in said tension belt.
- 8. A method for the protection from corrosion of blank edges of a hole in sheet metal otherwise coated with a corrosion-proof layer, comprising the steps of applying a ring of self-adhesive, rust-resistant tape having an outer diameter exceeding, and an inner diameter smaller than, that of said hole to one surface of the coated sheet metal surrounding said hole, and stretching and bending the inwardly protruding portion of said ring through said hole and around said blank edges, thereby sealing said blank edges of said hole from corrosion.
- 9. A method as in claim 8, further comprising the steps of carrying self-adhesive, rust-resistant tape on a tension belt and stamping said rings out of said tape through openings in said tension belt.
Priority Claims (5)
Number |
Date |
Country |
Kind |
89773 |
Nov 1966 |
DT |
|
91065 |
Feb 1967 |
DT |
|
91162 |
Feb 1967 |
DT |
|
93710 |
Jul 1967 |
DT |
|
94270 |
Sep 1967 |
DT |
|
Parent Case Info
This is a continuation of application Ser. No. 56,197, now abandoned, which is a continuation of application Ser. No. 681,694, which is now abandoned.
US Referenced Citations (18)
Continuations (2)
|
Number |
Date |
Country |
Parent |
56197 |
Jul 1970 |
|
Parent |
681694 |
Nov 1967 |
|