US3976815A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method for cleaning and coating rod
Assignee: M&B Metal Products Co Inc
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Filing: 1975-04-30
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Granted: 1976-08-24
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Expires: 1995-04-30
Abstract
Abstract An apparatus and method for continuously cleaning and coating wire is disclosed in which rod having scale and other inpurities on its outer surface is first mechanically descaled by passage through a plurality of spatially positioned rollers, then cleaned by frictional scraping by at least two rotating and orbiting abrasive drums which scrape the entire outer surface of the rod. The cleaned rod is then covered by a coating solution and electrically heated to a temperature sufficient to bake a coating on the exterior surface of the rod. The rod is then passed to a drawing apparatus.
Inventors
- 👤 Oliver R. Brekle
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 08:12
CPC Classifications
B; B21; B21C; B21C43/00; B21C43/02; B21C43/04; B08; B08B; B08B1/00; B08B1/20; B08B1/30; B08B1/32; B08B1/34; Y; Y10; Y10S; Y10S451/00; Y10S451/909
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
118 words
A method for preparing rod for drawing, the rod having brittle scale and other impurities on its outer surface comprising the steps of continuously feeding a supply of rod from a rod source, through a cleaning unit, scraping the exterior surface of the rod in the cleaning unit by the frictional engagement of the rod passing between the two abrasively coated resilient drum members disposed substantially opposite each other, each of said drum members rotating about its own axis, each of said drum members positively compressed against said rod when said members rotate, and also orbiting about an axis, substantially corresponding to the mid point of the rod, whereby the entire outer surface of the rod is cleaned.
Claim 2
Independent Claim
118 words
A method for preparing rod for drawing, the rod having brittle scale and other impurities on its outer surface comprising the steps of continuously feeding a supply of rod from a rod source, through a cleaning unit, scraping the exterior surface of the rod in the cleaning unit by the frictional engagement of the rod passing between the two abrasively coated resilient drum members disposed substantially opposite each other, each of said drum members rotating about its own axis, each of said drum members positively compressed against said rod when said members rotate, and also orbiting about an axis, substantially corresponding to the mid point of the rod, whereby the entire outer surface of the rod is cleaned.
Claim 3
Dependent Claim
49 words
A method for preparing rod for drawing as in claim 1 further comprising the step of mechanically descaling at least a portion of the scale on the outer surface of the rod by bending the rod through a plurality of angles before passing the rod through the cleaning unit.
Claim 4
Dependent Claim
93 words
A method for preparing rod for drawing as in claim 2 further comprising the steps of spraying a solution of coating material upon the exterior of the rod, after the rod has been cleaned, removing the excess amount of the coating solution from the exterior of the rod by directing a gas stream at substantially right angles to said rod, electrically heating the surface of the coated rod to bake the coating on the exterior of the rod, and passing the coated rod with the baked outer coating thereon to the drawing device.
Claim 5
Dependent Claim
68 words
A method for preparing rod for drawing as in claim 3 in which the step of mechanically descaling the rod comprises passing the rod through at least three 180° bends and at least one 90° bend, each of said bends so disposed relative to each other such that the rod is bent, at least once, in each of the four quadrants of the surface area of the rod.
References Cited (Backward Citations)
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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) | 1979-08-24 | 1980-02-23 | 1980-08-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-08-24 | 1984-02-23 | 1984-08-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-08-24 | 1988-02-23 | 1988-08-24 | $7700.00 | Window Closed / Lapsed |