Patent US4056644A successfully refreshed from Google Patents.
US4056644A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of coating annular surfaces
Assignee: Individual
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Filing: 1975-10-09
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Granted: 1977-11-01
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Expires: 1995-10-09
Abstract
Abstract A machine and method are disclosed which provide an efficient means for coating the annular surfaces on a plurality of workpieces. The workpieces are moved relative to a gun which sprays a coating material. As each workpiece passes within the spray, the gun moves alternately back-and-forth such that the center of the spray follows the curvature of the annular surface. Simultaneously, the workpiece rotates so that the entire surface is coated. The machine is provided with a camming mechanism for moving the gun, one motor for driving the camming mechanism, another motor for rotating the workpieces, and a series of belt and chain drives for synchronizing the motion of the gun with the movement of the workpieces.
Inventors
- 👤 Alfred S. Howard
- 👤 William Selesnick
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 20:27
CPC Classifications
B; B05; B05B; B05B13/00; B05B13/02; B05B13/04; B05B13/0463; B05B13/0468; B05B13/0221; B05B13/0242; B05B13/0405; B05B13/0447
Claims Analysis
Total Claims: 18
Claim 1
Independent Claim
148 words
A method of coating annular surfaces on a plurality of workpieces each having an annular surface, which comprises: a. producing a relative translational component of motion between an array of workpieces and a spray of a coating material by which each workpiece passes individually within the spray with the annular surface to be sprayed facing the point of origin of the spray; b. simultaneously relatively moving the point of the spray and the workpieces back-and-forth in a plane generally parallel to the plane of motion of step (a) and in synchronization with the motion of step (a) so that the path of the spray follows a portion of the curvature of each of the annular surfaces as the surface passes within the spray; c. rotating the workpieces through at least one revolution while each workpiece is within the spray; and d. spraying each workpiece with the coating material.
Claim 2
Independent Claim
148 words
A method of coating annular surfaces on a plurality of workpieces each having an annular surface, which comprises: a. producing a relative translational component of motion between an array of workpieces and a spray of a coating material by which each workpiece passes individually within the spray with the annular surface to be sprayed facing the point of origin of the spray; b. simultaneously relatively moving the point of the spray and the workpieces back-and-forth in a plane generally parallel to the plane of motion of step (a) and in synchronization with the motion of step (a) so that the path of the spray follows a portion of the curvature of each of the annular surfaces as the surface passes within the spray; c. rotating the workpieces through at least one revolution while each workpiece is within the spray; and d. spraying each workpiece with the coating material.
Claim 3
Dependent Claim
24 words
The method of claim 1 in which the centerline of the path of the spray bisects each annular surface into equal annular surface areas.
Claim 4
Dependent Claim
22 words
The method of claim 1 in which the path of the spray follows the same corresponding curvature for each and every workpiece.
Claim 5
Dependent Claim
35 words
The method of claim 1 in which the path of the spray alternates between different halves of the annular surface for each workpiece so that the path follows the same curvature for every second workpiece.
Claim 6
Dependent Claim
48 words
The method of claim 1 in which steps (a) and (b) comprise arranging the workpieces in a staggered fashion with the centers of the annular surfaces of adjacent ones of the workpieces lying on opposite cycles along a wave-like path and the point of the spray is non-oscillating.
Claim 7
Dependent Claim
31 words
The method of claim 1 in which steps (a) and (b) comprise arranging the workpieces in a row with the centers of their annular surfaces lying along a generally straight path.
Claim 8
Dependent Claim
31 words
The method of claim 1 in which steps (a) and (b) comprise arranging the workpieces in a row with the centers of their annular surfaces lying along a generally arcuate path.
Claim 9
Independent Claim
126 words
A method of coating annular surfaces on a plurality of workpieces each having an annular surface, which comprises: a. passing the workpieces individually beneath a spray of coating material with the annular surfaces to be sprayed facing the point of origin of the spray; b. simultaneously moving the point of the spray back-and-forth in a direction substantially perpendicular to the direction in which the workpieces are passed, the back-and-forth movement synchronized with the movement of the workpieces so that the centerline of the spray follows the curvature of the annular surface and bisects each annular surface into equal annular surface areas; c. rotating the workpieces through at least one revolution while each workpiece is beneath the spray; and d. spraying each workpiece with the coating material.
Claim 10
Independent Claim
126 words
A method of coating annular surfaces on a plurality of workpieces each having an annular surface, which comprises: a. passing the workpieces individually beneath a spray of coating material with the annular surfaces to be sprayed facing the point of origin of the spray; b. simultaneously moving the point of the spray back-and-forth in a direction substantially perpendicular to the direction in which the workpieces are passed, the back-and-forth movement synchronized with the movement of the workpieces so that the centerline of the spray follows the curvature of the annular surface and bisects each annular surface into equal annular surface areas; c. rotating the workpieces through at least one revolution while each workpiece is beneath the spray; and d. spraying each workpiece with the coating material.
Claim 11
Independent Claim
142 words
A method of coating annular surfaces on a plurality of workpieces each having an annular surface, which comprises: a. moving an array of workpieces relative to a spray of a coating material by which each workpiece passes individually within the spray with the annular surface to be sprayed facing the point of origin of the spray; b. simultaneously moving the point of the spray back-and-forth relative to the workpieces in a plane generally parallel to the plane of motion of step (a) and in synchronization with the motion of step (a) so that the path of the spray follows a portion of the curvature of each of the annular surfaces as that surface passes within the spray; c. rotating the workpieces through at least one revolution while each workpiece is within the spray; and d. spraying each workpiece with the coating material.
Claim 12
Independent Claim
142 words
A method of coating annular surfaces on a plurality of workpieces each having an annular surface, which comprises: a. moving an array of workpieces relative to a spray of a coating material by which each workpiece passes individually within the spray with the annular surface to be sprayed facing the point of origin of the spray; b. simultaneously moving the point of the spray back-and-forth relative to the workpieces in a plane generally parallel to the plane of motion of step (a) and in synchronization with the motion of step (a) so that the path of the spray follows a portion of the curvature of each of the annular surfaces as that surface passes within the spray; c. rotating the workpieces through at least one revolution while each workpiece is within the spray; and d. spraying each workpiece with the coating material.
Claim 13
Dependent Claim
24 words
The method of claim 9 in which the centerline of the path of the spray bisects each annular surface into equal annular surface areas.
Claim 14
Dependent Claim
22 words
The method of claim 9 in which the path of the spray follows the same corresponding curvature for each and every workpiece.
Claim 15
Dependent Claim
35 words
The method of claim 9 in which the path of the spray alternates between different halves of the annular surface for each workpiece so that the path follows the same curvature for every second workpiece.
Claim 16
Dependent Claim
27 words
The method of claim 9 which the point of the spray moves back-and-forth in a direction substantially perpendicular to the direction of the motion of the workpieces.
Claim 17
Dependent Claim
22 words
The method of claim 10 in which the workpieces are moved relative to the spray by orbitally revolving the plurality of workpieces.
Claim 18
Dependent Claim
29 words
The method of claim 10 in which the workpieces are moved relative to the spray by passing the workpieces beneath the spray in a generally straight line of direction.
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) | 1980-10-31 | 1981-05-02 | 1981-11-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-10-31 | 1985-05-02 | 1985-11-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-10-31 | 1989-05-02 | 1989-11-01 | $7700.00 | Window Closed / Lapsed |