US3598231A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Conveyor cleaner with individually mounted blades
Assignee: Individual
•
Filing: 1970-02-09
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Granted: 1971-08-10
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Expires: 1990-02-09
Abstract
Abstract A conveyor cleaner for scraping a conveyor belt, constructed so that each scraper blade is individually mounted and includes a floating connection to a support so that the blades may individually accommodate themselves to differing configurations of the belt. Preferably, each blade is mounted on an elongated, steel, rodlike arm having its blade-remote end formed as a coil spring encircling the support and provided with a free end adjustably connected to the support for varying the arm bias toward the conveyor.
Inventors
- 👤 Carl G Matson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 11:01
CPC Classifications
B; B65; B65G; B65G45/00; B65G45/10; B65G45/12; B65G45/16
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
155 words
A conveyor cleaner for a conveyor including a rotatable drum and an endless belt trained about the drum and providing delivery and return runs, a support fixedly positionable transversely of and adjacent to one of the runs, a plurality of belt scraper blades disposed transversely of said one run, and a plurality of elongated arms equal in number to the blades and disposed lengthwise of said run, each arm being affixed at one end to a blade and each having support-engaging means at its opposite end, characterized in that each support-engaging means is individual to its arm and is connected to the support so that each arm is rockable relative to the support and relative to each other generally about the length of the support, and a plurality of biasing means is provided, one for each arm and each operative between its arm and the support to bias its respective blade individually toward said run.
Claim 2
Dependent Claim
155 words
A conveyor cleaner for a conveyor including a rotatable drum and an endless belt trained about the drum and providing delivery and return runs, a support fixedly positionable transversely of and adjacent to one of the runs, a plurality of belt scraper blades disposed transversely of said one run, and a plurality of elongated arms equal in number to the blades and disposed lengthwise of said run, each arm being affixed at one end to a blade and each having support-engaging means at its opposite end, characterized in that each support-engaging means is individual to its arm and is connected to the support so that each arm is rockable relative to the support and relative to each other generally about the length of the support, and a plurality of biasing means is provided, one for each arm and each operative between its arm and the support to bias its respective blade individually toward said run.
Claim 3
Dependent Claim
25 words
The invention defined in claim 1, further characterized in that each support-engaging means loosely encircles the support to accomplish the individual rockability of its arm.
Claim 4
Dependent Claim
61 words
The invention defined in claim 1, further characterized in that each support-engaging means is an integral extension of its arm in the form of helical coil loosely encircling the support to accomplish the individual rockability of its arm, each coil having a free end portion other than its arm, and each biasing means includes the free end portion of its arm.
Claim 5
Dependent Claim
56 words
The invention defined in claim 3, further characterized in that each free end portion is provided with a slot of generally arcuate configuration as respects the longitudinal axis of the support and each biasing means includes an adjustable, support-carried element cooperating with the slot to provide a one-way lost-motion connection between its arm and the support.
Claim 6
Dependent Claim
30 words
The invention defined in claim 3, further characterized in that each arm is of resilient, rodlike material and its coil affords a helical spring comprising part of the biasing means.
Claim 7
Dependent Claim
74 words
The invention defined in claim 5, further characterized in that the free end portions of each coil is elongated generally arcuately as respects the support axis and in a direction opposite to the arm and is bent back upon itself to provide a generally arcuate slot, and the support carries a plurality of adjusting means, one for and passing through each slot to provide a one-way lost-motion connection between its arm and the support.
Claim 8
Dependent Claim
37 words
The invention defined in claim 6, in which each of the last-named adjusting means comprising an L-shaped element having a first leg engaging the support and a second leg cooperating with the slot of its respective coil.
Claim 9
Dependent Claim
25 words
The invention defined in claim 5, further characterized in that each arm, its coil and its free end portion are constructed of cold-finished low-carbon steel.
Claim 10
Dependent Claim
22 words
The invention defined in claim 1 in which the blades are disposed substantially at right angles to the length of said run.
Claim 11
Dependent Claim
25 words
The invention defined in claim 1, in which each blade is disposed at a negative rake angle as respects its scraping relation to the run.
Claim 12
Dependent Claim
94 words
The invention defined in claim 1, further characterized in that each blade is affixed to its arm by means of a sleeve tightly telescoped over and affixed to the blade proximate portion of its arm, each blade having an aperture therein through which a terminal portion of the sleeve projects, said sleeve has an enlargement at one side of the blade to provide a blade-supporting abutment, the terminal end of the sleeve is threaded, and a nut is threaded onto said threaded terminal end to confine the blade between the nut and the abutment.
Claim 13
Dependent Claim
26 words
The invention defined in claim 11, further characterized in that resilient means is interposed between each side of the blade and its nut and abutment respectively.
References Cited (Backward Citations)
US3342312A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-08-09 | 1975-02-08 | 1975-08-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-08-09 | 1979-02-08 | 1979-08-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-08-09 | 1983-02-08 | 1983-08-10 | $7700.00 | Window Closed / Lapsed |