US3583555A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Cleaning apparatus for conveyor belts or the like
Assignee: Individual
•
Filing: 1969-01-31
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Granted: 1971-06-08
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Expires: 1989-01-31
Abstract
Abstract An endless conveyor belt treated and cleaned by a contacting roller rotated at a higher peripheral speed than the belt. Helical formations on the roller having spaced, serrated land surfaces engage the belt to remove loosely adhering matter while treating fluid is conducted through the roller drive shaft and discharged into the belt from passages extending radially through the hub portion of the roller from which the helical formations project.
Inventors
- 👤 George E Karsnak
- 👤 Robert C Sasena
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 23:09
CPC Classifications
B; B65; B65G; B65G45/00; B65G45/10; B65G45/20
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
163 words
In combination with a flexible belt entrained about a pulley, a flexible, resilient cleaning roller rotatably mounted about a rotational axis substantially parallel to that of the pulley, pressure-controlled means mounting the roller for rotation in peripheral contact with the belt, and drive means drivingly connected to the roller for imparting rotation thereto in a direction opposite to movement of the belt, said cleaning roller including a hub portion and a plurality of circumferentially spaced continuous helical formations projecting radially from the hub portion forming helical grooves therebetween, said hub portion having a radially inner manifold groove and passages extending radially outward from the manifold groove, and said formations having radially outer serrated land surfaces of limited contact area engageable with the belt, said drive means including a shaft connected to the roller, and passage means extending through the shaft in fluid communication with the manifold groove for discharging fluid through the passages in the hub portion of the formations onto the belt.
Claim 2
Dependent Claim
163 words
In combination with a flexible belt entrained about a pulley, a flexible, resilient cleaning roller rotatably mounted about a rotational axis substantially parallel to that of the pulley, pressure-controlled means mounting the roller for rotation in peripheral contact with the belt, and drive means drivingly connected to the roller for imparting rotation thereto in a direction opposite to movement of the belt, said cleaning roller including a hub portion and a plurality of circumferentially spaced continuous helical formations projecting radially from the hub portion forming helical grooves therebetween, said hub portion having a radially inner manifold groove and passages extending radially outward from the manifold groove, and said formations having radially outer serrated land surfaces of limited contact area engageable with the belt, said drive means including a shaft connected to the roller, and passage means extending through the shaft in fluid communication with the manifold groove for discharging fluid through the passages in the hub portion of the formations onto the belt.
Claim 3
Dependent Claim
66 words
The structure as defined in claim 1 wherein said helical grooves are substantially V-shaped in cross-sectional configuration with a rounded bottom surface and diverging sidewalls with the peripheral width of the outer end of each helical groove being generally equal to the peripheral width of the helical formations whereby material displaced from the belt will be effectively unloaded from the grooves during rotation of the roller.
Claim 4
Dependent Claim
27 words
The structure as defined in claim 2 wherein said passages extending radially outwardly from the manifold groove terminate in the sidewall of certain of said V-shaped grooves.
Claim 5
Dependent Claim
25 words
The structure as defined in claim 2 wherein said passages extending radially outward from the manifold groove terminating in the bottom of said V-shaped grooves.
Claim 6
Dependent Claim
25 words
The structure as defined in claim 2 wherein said serrated land surfaces each includes a plurality of longitudinally extending collection grooves of substantially V-shaped configuration.
Claim 7
Dependent Claim
40 words
The structure as defined in claim 2 wherein said land surfaces each includes a plurality of peripherally extending collection grooves which extend across the land surface of the formations in intersecting relation to the helical grooves between the helical formations.
Claim 8
Dependent Claim
76 words
The structure as defIned in claim 2 wherein said passage means in the shaft including a plurality of longitudinally inclined radial bores communicating the exterior of the shaft with a longitudinal passageway extending therethrough, the hub portion of the roller including a tubular sleeve defining the inner surface of the manifold groove and spaced concentrically from the shaft, said sleeve having radial apertures therein communicating the manifold groove with the space between the shaft and sleeve.
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) | 1974-06-07 | 1974-12-07 | 1975-06-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-06-07 | 1978-12-07 | 1979-06-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-06-07 | 1982-12-07 | 1983-06-08 | $7700.00 | Window Closed / Lapsed |