US3604158A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for treating cylindrical workpieces
Assignee: Wheelabrator Corp
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Filing: 1969-02-11
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Granted: 1971-09-14
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Expires: 1989-02-11
Abstract
Abstract In order to provide for the complete surface treatment of cylindrical workpieces a surface-treating machine is provided with a roll cluster including a feed roll and guide rolls extending through a treatment chamber. The feed roll has a screw flight having a pitch a little greater than the length of a workpiece and workpieces are deposited in one pitch length of the screw flight by a contoured portion in one of the guide rolls.
Inventors
- 👤 Robert L Daffron
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 00:48
CPC Classifications
B; B24; B24C; B24C3/00; B24C3/08; B24C3/085
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
158 words
An apparatus for the surface treatment of cylindrical workpieces including a treatment chamber, means for introducing treating material into said chamber and Removing said material therefrom, the improvements comprising: means disposed in the treatment chamber for transporting workpieces therethrough comprising means for moving the workpieces in a spaced-apart relationship through said chamber and elongated guide rolls rotatable about an axis parallel to the path of the workpieces; said guide rolls spaced a distance from each other less than the diameter of a workpiece; one of said guide rolls having at one end thereof a concave portion conforming to the periphery of a workpiece formed in a portion of this periphery; and means for feeding workpieces to said one end of guide roll to deposit workpieces in said concave portion whereby said guide rolls are rotated a workpiece is moved in said concave portion and deposited on said means for moving the workpieces and then advanced through said chamber.
Claim 2
Independent Claim
158 words
An apparatus for the surface treatment of cylindrical workpieces including a treatment chamber, means for introducing treating material into said chamber and Removing said material therefrom, the improvements comprising: means disposed in the treatment chamber for transporting workpieces therethrough comprising means for moving the workpieces in a spaced-apart relationship through said chamber and elongated guide rolls rotatable about an axis parallel to the path of the workpieces; said guide rolls spaced a distance from each other less than the diameter of a workpiece; one of said guide rolls having at one end thereof a concave portion conforming to the periphery of a workpiece formed in a portion of this periphery; and means for feeding workpieces to said one end of guide roll to deposit workpieces in said concave portion whereby said guide rolls are rotated a workpiece is moved in said concave portion and deposited on said means for moving the workpieces and then advanced through said chamber.
Claim 3
Dependent Claim
31 words
The apparatus of claim 1 wherein said moving means includes a feed roll having a screw flight on the periphery with a pitch slightly greater than the length of a workpiece.
Claim 4
Dependent Claim
30 words
The apparatus of claim 2 wherein said guide rolls engage a workpiece in said screw flight and rotate it about its longitudinal axis as it advances through said treatment chamber.
Claim 5
Dependent Claim
34 words
The apparatus of claim 1 wherein said guide rolls are spaced apart whereby treating material may pass therebetween and impinge upon the entire surface of a workpiece as it advances through said treatment chamber.
Claim 6
Dependent Claim
30 words
The apparatus of claim 1 wherein said means for transporting workpieces extends horizontally and comprises a pair of guide rolls and a feed roll means disposed beneath said guide rolls.
Claim 7
Dependent Claim
34 words
The apparatus of claim 3 wherein said guide rolls are spaced apart whereby treating material may pass therebetween and impinge upon the entire surface of a workpiece as it advances through said treating chamber.
Claim 8
Dependent Claim
36 words
The apparatus of claim 1 wherein said transporting means includes a pair of spaced apart rolls and wherein said moving means includes driving means positioned between said spaced rolls having spaced elements engageable with the workpieces.
Claim 9
Dependent Claim
38 words
The apparatus of claim 7 wherein said driving means comprises an endless chain having a plurality of fingers extending upwardly between said spaced-apart rolls and spaced from each other a distance greater than the length of a workpiece.
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) | 1974-09-13 | 1975-03-15 | 1975-09-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-09-13 | 1979-03-15 | 1979-09-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-09-13 | 1983-03-15 | 1983-09-14 | $7700.00 | Window Closed / Lapsed |